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CDI

Offre d'emploiSenior IT Infrastructure Officer

Nexus Jobs Limited
Publiée le

£70k-75k
Grand Londres, Royaume-Uni
Senior IT Infrastructure Officer Our Client a bank, in Central London are looking for an experienced IT Infrastructure professional who is ideally looking for their next challenge in a dynamic and regulated financial services environment. We are seeking a highly skilled Senior IT Infrastructure Officer to lead the management, security, and continuous improvement of our enterprise IT infrastructure. The Senior IT Infrastructure Officer will be playing a key role in ensuring the availability, resilience, and performance of critical systems while supporting technologies across servers, networks, cloud services, cybersecurity, and business-critical financial applications. The candidate must have strong technical expertise in Windows/Linux, VMware, Microsoft 365, networking, cybersecurity, and infrastructure management who also enjoys solving complex challenges and driving operational excellence. Must have 7 years' experience in enterprise infrastructure, ideally within banking or financial services, and be passionate about delivering secure, reliable IT services.. The role will be Monday to Friday, 9:30am to 5:30pm and reporting into the Head of IT & Data. Due to the nature of the role, the individual is expected to work in our offices, 5 days per week, during their probationary period Infrastructure & Systems Management Administer, maintain, and optimize Windows and Linux server environments. Manage VMware virtualized infrastructure (vSphere 8 and above). Oversee enterprise backup and disaster recovery solutions using Veeam Backup & Replication. Manage Veeam ONE monitoring and Veeam Recovery Orchestrator (VRO) environments. Administer endpoint security and encryption solutions, including Symantec Endpoint Protection (SEP) and Symantec Endpoint Encryption (SEE). Support endpoint DLP, SIEM, and security monitoring tools (e.g., Splunk, Tenable). Manage patching processes using ManageEngine Patch Manager Plus. Support Microsoft 365 services and related cloud technologies. In depth understanding of Cyber security Monitor system performance, capacity, availability, and infrastructure health. Ensure compliance with IT governance, security policies, and operational standards. End-User Computing & Branch Support Provide advanced desktop, laptop, printer, Mobile device (iOS) and branch office IT support. Deliver AV support for meeting rooms, conferencing, presentations, and collaboration systems. Manage OS deployment, imaging, image creation, maintenance, and software packaging. Administer Active Directory (AD), Group Policy Objects (GPOs) and user provisioning and NTFS permissions. Support Microsoft 365 applications including Outlook, Teams, OneDrive, and SharePoint. Resolve technical incidents and service requests in line with agreed SLAs. 3. Enterprise Applications & Financial Systems Support Support and administer business-critical applications, including: Bloomberg FXT and Refinitiv Eikon, Murex Treasury System, SWIFT Alliance Access (SAA), 1AML, SIBS, GFMS, COP Support enterprise file synchronization and replication solutions (e.g., Syncovery, other SFTP). 4. Networking • Configure and support Cisco switches and routers. • Administer FortiGate firewall environments. • Strong network fundamentals: DNS, DHCP, TCP/IP, LAN/WAN, Routing and connectivity troubleshooting. Monitor network performance, availability, and security posture. Security & Endpoint Management Support vulnerability management using tools such as Tenable. Manage security monitoring and log analysis tools (e.g., Splunk). Perform SSL/TLS certificate lifecycle management using OpenSSL. Create and manage CSRs, certificate chains, and private keys. Ensure adherence to cybersecurity policies, standards, and regulatory requirements. Support physical access control systems (e.g., Paxton) Operating Systems Windows 11 Windows Server 2019/2022 (or equivalent enterprise environments) Red Hat Linux Infrastructure & Virtualization VMware vSphere / vCenter (v8.0.3 and above) Veeam Backup & Replication Veeam ONE, VRO Microsoft Office 365 ManageEngine Patch Manager Plus SAAS solutions SQL Server Security Symantec Endpoint Protection (SEP) Symantec Endpoint Encryption (SEE) SentinelOne – EDR/ XDR Endpoint DLP solutions Firewall administration Vulnerability management tools (e.g., Tenable) SIEM tools (e.g., Splunk) Networking Cisco Switches and Routers FortiGate Firewalls LAN/WAN networking and routing Hardware & Storage Dell PowerEdge Servers Dell PowerVault SAN Storage Education Bachelor or Master's degree or professional qualification in relevant discipline (IT/Information Systems/Computer Science/Technology/Programming/Information Science/System Engineering/Computing) The role is based in Central London and initally will be be 5 days per week in the office. This is a 12 month FTC position. The salary for the role will be circa £70K - £75K. Do send your CV to us in Word format along with your salary and availability.
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CDD

Offre d'emploiSenior IT Infrastructure & Systems Lead

Nexus Jobs Limited
Publiée le

£70k-75k
Grand Londres, Royaume-Uni
Senior IT Infrastructure & Systems Lead Our Client a bank, in Central London are looking for an experienced IT Infrastructure professional who is ideally looking for their next challenge in a dynamic and regulated financial services environment. We are seeking a highly skilled Senior IT Infrastructure Officer to lead the management, security, and continuous improvement of our enterprise IT infrastructure. The Senior IT Infrastructure Officer will be playing a key role in ensuring the availability, resilience, and performance of critical systems while supporting technologies across servers, networks, cloud services, cybersecurity, and business-critical financial applications. The candidate must have strong technical expertise in Windows/Linux, VMware, Microsoft 365, networking, cybersecurity, and infrastructure management who also enjoys solving complex challenges and driving operational excellence. Must have 7 years' experience in enterprise infrastructure, ideally within banking or financial services, and be passionate about delivering secure, reliable IT services.. The role will be Monday to Friday, 9:30am to 5:30pm and reporting into the Head of IT & Data. Due to the nature of the role, the individual is expected to work in our offices, 5 days per week, during their probationary period Infrastructure & Systems Management Administer, maintain, and optimize Windows and Linux server environments. Manage VMware virtualized infrastructure (vSphere 8 and above). Oversee enterprise backup and disaster recovery solutions using Veeam Backup & Replication. Manage Veeam ONE monitoring and Veeam Recovery Orchestrator (VRO) environments. Administer endpoint security and encryption solutions, including Symantec Endpoint Protection (SEP) and Symantec Endpoint Encryption (SEE). Support endpoint DLP, SIEM, and security monitoring tools (e.g., Splunk, Tenable). Manage patching processes using ManageEngine Patch Manager Plus. Support Microsoft 365 services and related cloud technologies. In depth understanding of Cyber security Monitor system performance, capacity, availability, and infrastructure health. Ensure compliance with IT governance, security policies, and operational standards. End-User Computing & Branch Support Provide advanced desktop, laptop, printer, Mobile device (iOS) and branch office IT support. Deliver AV support for meeting rooms, conferencing, presentations, and collaboration systems. Manage OS deployment, imaging, image creation, maintenance, and software packaging. Administer Active Directory (AD), Group Policy Objects (GPOs) and user provisioning and NTFS permissions. Support Microsoft 365 applications including Outlook, Teams, OneDrive, and SharePoint. Resolve technical incidents and service requests in line with agreed SLAs. Enterprise Applications & Financial Systems Support Support and administer business-critical applications, including: Bloomberg FXT and Refinitiv Eikon, Murex Treasury System, SWIFT Alliance Access (SAA), 1AML, SIBS, GFMS, COP Support enterprise file synchronization and replication solutions (e.g., Syncovery, other SFTP). Networking • Configure and support Cisco switches and routers. • Administer FortiGate firewall environments. • Strong network fundamentals: DNS, DHCP, TCP/IP, LAN/WAN, Routing and connectivity troubleshooting. Monitor network performance, availability, and security posture. Security & Endpoint Management Support vulnerability management using tools such as Tenable. Manage security monitoring and log analysis tools (e.g., Splunk). Perform SSL/TLS certificate lifecycle management using OpenSSL. Create and manage CSRs, certificate chains, and private keys. Ensure adherence to cybersecurity policies, standards, and regulatory requirements. Support physical access control systems (e.g., Paxton) Operating Systems Windows 11 Windows Server 2019/2022 (or equivalent enterprise environments) Red Hat Linux Infrastructure & Virtualization VMware vSphere / vCenter (v8.0.3 and above) Veeam Backup & Replication Veeam ONE, VRO Microsoft Office 365 ManageEngine Patch Manager Plus SAAS solutions SQL Server Security Symantec Endpoint Protection (SEP) Symantec Endpoint Encryption (SEE) SentinelOne – EDR/ XDR Endpoint DLP solutions Firewall administration Vulnerability management tools (e.g., Tenable) SIEM tools (e.g., Splunk) Networking Cisco Switches and Routers FortiGate Firewalls LAN/WAN networking and routing Hardware & Storage Dell PowerEdge Servers Dell PowerVault SAN Storage Education Bachelor or Master's degree or professional qualification in relevant discipline (IT/Information Systems/Computer Science/Technology/Programming/Information Science/System Engineering/Computing) The role is based in Central London and initially will be be 5 days per week in the office. This is a 12 month FTC position. The salary for the role will be circa £70K - £75K. Do send your CV to us in Word format along with your salary and availability.
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Freelance

Mission freelanceIngénieur Systèmes Linux / Automatisation IaC – Croix (59)

Bifora
Publiée le
Red Hat

6 mois
240-390 €
Croix, Hauts-de-France
Nous recherchons pour le compte de notre client dans le domaine bancaire, un(e) Ingénieur Systèmes Linux / Automatisation IaC. Environnement technique RedHat Enterprise Linux/Rocky/Alma, Debian, Ubuntu, LVM, multipathing, Terraform, Packer, Ansible (Tower/AWX), Bash, Python/Go, VMware vSphere, Cloud public (AWS/Azure/GCP), CIS Benchmarks, SSH hardening, firewall local. Contexte Le poste consiste à sécuriser le fonctionnement des environnements Linux en garantissant la résolution des incidents critiques, le pilotage des campagnes de patching et de montée de version, ainsi que l'amélioration continue des performances et de la capacité des infrastructures. Une dimension importante du rôle porte sur l'industrialisation des déploiements, via la conception de templates système et leur intégration dans une démarche Infrastructure as Code. Missions Traiter les incidents de niveau 3 sur les environnements Linux et en assurer la résolution durable Piloter les campagnes de patching et les montées de version sur les distributions d'entreprise Suivre et optimiser les performances ainsi que la capacité des infrastructures serveurs Concevoir et maintenir des templates Linux réutilisables pour accélérer les déploiements Intégrer ces templates dans des workflows Terraform afin d'industrialiser le provisioning Développer et faire évoluer des rôles de gestion de configuration sous Ansible (ou équivalent) Contribuer au durcissement sécurité des systèmes (CIS Benchmarks, SSH, pare-feu local) Compétences attendues RedHat Enterprise Linux, Rocky Linux, Alma Linux, Debian, Ubuntu, noyau Linux, LVM, multipathing, Terraform, Packer, Ansible, Ansible Tower, AWX, Bash, Python, Go, VMware vSphere, AWS, Azure, GCP, CIS Benchmarks, SSH hardening, RHCE, RHCA, Terraform Associate
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CDI

Offre d'emploiIngénieur Système et Réseaux (F/H)

CELAD
Publiée le

40k-46k €
Strasbourg, Grand Est
A LIRE ATTENTIVEMENT AVANT DE POSTULER ⬇ Strasbourg - Expérience de 5 ans minimum Vous aimez concevoir des architectures robustes, résoudre des problèmes complexes et participer à des projets qui comptent ? Vous avez un vrai bagage technique, et vous aimez travailler dans des environnements exigeants et variés ? On a une mission pour vous ! Nous poursuivons notre développement et recherchons actuellement un.e Ingénieur systèmes & réseaux pour accompagner notre client dans le secteur assurance. Nous vous proposons d'intégrer une équipe qui définit les architectures, normes et standards techniques, tout en garantissant le bon fonctionnement et la sécurité des infrastructures IT Vos missions au quotidien : - Concevoir et mettre en œuvre des architectures Linux / RedHat - Assurer le maintien en conditions opérationnelles (MCO) niveau 2 et 3 - Automatiser les déploiements et l'exploitation (Ansible, scripting Bash / Python) - Analyser les impacts techniques et participer aux choix technologiques - Répondre aux recommandations de l'équipe sécurité et contribuer aux remédiations - Résoudre des incidents complexes et participer aux chantiers d'amélioration continue - Collaborer avec les autres pôles de la DSI (sécurité, intégration, exploitation, bureautique, développement) sur des projets variés et structurants ⚙️ Votre terrain de jeu technique : - Systèmes : Linux / RedHat - Architecture : serveurs, virtualisation, réseaux - Automatisation : Ansible, scripting Bash/Python - Sécurité : firewalls (Palo Alto, Stormshield, autres solutions) - Cloud hybride (Azure, AWS, solutions privées)
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Freelance

Mission freelanceIngénieur Système et Réseaux (F/H)

CELAD
Publiée le

1 an
400-420 €
Strasbourg, Grand Est
A LIRE ATTENTIVEMENT AVANT DE POSTULER ⬇ Strasbourg - Expérience de 5 ans minimum Vous aimez concevoir des architectures robustes, résoudre des problèmes complexes et participer à des projets qui comptent ? Vous avez un vrai bagage technique, et vous aimez travailler dans des environnements exigeants et variés ? On a une mission pour vous ! Nous poursuivons notre développement et recherchons actuellement un.e Ingénieur systèmes & réseaux pour accompagner notre client dans le secteur assurance. Nous vous proposons d'intégrer une équipe qui définit les architectures, normes et standards techniques, tout en garantissant le bon fonctionnement et la sécurité des infrastructures IT Vos missions au quotidien : - Concevoir et mettre en œuvre des architectures Linux / RedHat - Assurer le maintien en conditions opérationnelles (MCO) niveau 2 et 3 - Automatiser les déploiements et l'exploitation (Ansible, scripting Bash / Python) - Analyser les impacts techniques et participer aux choix technologiques - Répondre aux recommandations de l'équipe sécurité et contribuer aux remédiations - Résoudre des incidents complexes et participer aux chantiers d'amélioration continue - Collaborer avec les autres pôles de la DSI (sécurité, intégration, exploitation, bureautique, développement) sur des projets variés et structurants ⚙️ Votre terrain de jeu technique : - Systèmes : Linux / RedHat - Architecture : serveurs, virtualisation, réseaux - Automatisation : Ansible, scripting Bash/Python - Sécurité : firewalls (Palo Alto, Stormshield, autres solutions) - Cloud hybride (Azure, AWS, solutions privées)
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CDI

Offre d'emploiIT Support Engineer

Nexus Jobs Limited
Publiée le

£40k-50k
Grand Londres, Royaume-Uni
IT Systems Network Support Engineer Our Client is a Bank based in Central London, are looking to recruit an IT Systems Support Engineer ideally with at least 2 years of experience in IT within the financial industry and overall 5 years of experience in IT. You will be working in a small team managing the day-to-day technology infrastructure to ensure that the Bank can operate efficiently. Responsible for the maintenance of the IT infrastructure of the Bank by providing first line support of software, hardware and networking that incudes installation, configuration and troubleshooting Manage day to day operational aspects of a project and scope To design, plan and deploy IT projects to enhance the existing IT infrastructure and also any applications required by the bank. End User Computing support for all staff. Coordinator between the London Users and Group IT Security on all requests for systems access and to ensure that such permissions are provided promptly, are regularly updated and that the Group Access Matrix Protocol is followed at all times Preserve the Assets of the Bank by implementing Disaster Recovery and back up procedures and ensuring that the standards comply with Group requirements Provide IT support to ensure the smooth running of daily and periodic reports for the London Compliance team to ensure adherence to the Anti Money Laundering Provisions Undertake Data Extraction for reporting requirements for all the other stakeholders at the bank To monitor the CCTV, telephony systems and door access systems and to ensure that they are well maintained with proper backup and that relevant maintenance procedures are applied Overall networking equipment monitoring (i.e. Network Switches, Firewall and other appliances) and support To plan and carry out maintenance checks to ensure IT Operations, infrastructures are running smoothly and ensure daily routine task completeness To maintain and ensure that the BCP site is always ready for continuous bank operations To maintain the branch PABX system and to ensure that the recording system is always up and running at all times The following is a list of technical skills required for the role: Technical/Functional skills Proficient in common operating systems Windows 10, Windows Server 2016 and above Redhat Linux based Operating System Software proficiency VMWare v6.7 and above Veeam Backup and Replication Symantec Endpoint Protection Symantec Endpoint Encryption ManageEngine Patch Manager Plus Microsoft Office 365 Networking (IT) Cisco Switches and Routers Fortigate Firewalls LAN/WAN Routing Hardware Dell PowerEdge Servers Dell PowerVault SAN Storage Project management Data analysis Bachelor or Master's degree or professional qualification in relevant discipline (IT/Information Systems/Computer Science/Technology/Programming/Information Science/System Engineering/Computing) The salary for this role is in the range £40K - £50K. This is a hybrid role – 3 days in the office. The Client is based in Central London. Please send your CV to us in Word format along with your salary and notice period.
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CDI

Offre d'emploiIT Infrastructure Operations and Security Lead

Nexus Jobs Limited
Publiée le

£85k-100k
Grand Londres, Royaume-Uni
IT Infrastructure Operations and Security Lead This role requires excellent management of a small team in IT along with managing stakeholders and vendors. You must be hands-on technically in IT Infrastructure. The IT Operational Platform and Security Lead is responsible for overseeing the organisation's IT operations, ensuring the stability, continuity, security, and efficiency of its technology platforms within a global commercial insurance environment. While Microsoft technologies (Microsoft 365, Azure, Exchange Online) form a core part of the infrastructure, the role also encompasses broader enterprise IT systems, multi layered networking, security, data management, and third-party platforms that support global business operations and the associated applications estate. Security, Compliance & Risk Management Define and enforce cloud security policies, identity management, and access controls to protect systems, networks, and data. Oversee the adoption of zero-trust security principles to enhance protection across cloud platforms. Manage identity and access management (IAM) in a cloud-first environment, including Azure AD, MFA, Conditional Access, SSO, and Privileged Access Management (PAM). Lead threat monitoring, detection, and response using cloud-native security solutions such as Microsoft Defender, Sentinel, and SIEM platforms. Ensure compliance with cloud security frameworks and regulatory requirements (ISO 27001, NIST, GDPR, SOC2, FCA). Conduct regular security risk assessments, penetration tests, and vulnerability management across cloud services. Oversee endpoint security, cloud network and API security for robust protection across all assets Define, manage and maintain accurate DR and BCP plans for the infrastructure area with biannual tests. Technical Experience Microsoft Azure Infrastructure design and administration, including topology, Azure networking, services, and component knowledge, Microsoft AD (Entra), Server and SQL experience, O365 administration and design Global Software Patching and estate management via Intune Firewall (Azure, CheckPoint and Cloudflare), DNS, VPN, WIFI and Local Area Network design & administration experience Software Defined Networking (Cisco, Meraki, Versa) Key Skills Microsoft 365 & Azure: Strong experience managing Microsoft 365 (Exchange, SharePoint, Teams), Azure cloud infrastructure, and security tools such as Microsoft Defender and Sentinel. Security & Compliance: Deep knowledge of security frameworks (ISO 27001, NIST, CIS), compliance requirements (GDPR, SOC2), and risk management best practices. Identity & Access Management (IAM): Expertise in Azure AD, MFA, Conditional Access, Single Sign-On (SSO), and Privileged Access Management (PAM). Threat Management & Incident Response: Ability to detect, respond to, and mitigate cyber threats using SIEM, endpoint security, and vulnerability management tools. Networking & Infrastructure Security: Understanding of firewalls, VPNs, SD-WAN, DNS security, endpoint protection, and cloud security controls. IT Service Management & Automation: Experience implementing ITIL-based service management, automating operational tasks, and optimising service delivery. Operational & Leadership Skills: IT Operations & Service Continuity: Ability to ensure IT systems are highly available, resilient, and fit for purpose, with a strong focus on business continuity and disaster recovery. Supplier & Vendor Management: Experience managing third-party IT vendors, MSPs, and SaaS providers, ensuring service levels, performance, and cost-effectiveness. Project Leadership & Change Management: Ability to lead technology projects, system upgrades, and platform migrations, ensuring smooth execution and minimal business disruption. Process Improvement & Automation: Strong analytical mindset to identify inefficiencies, automate workflows, and enhance security controls. Soft Skills & Mindset: Problem-Solving & Decision-Making: Capable of making informed decisions and resolving complex IT issues in a fast-paced environment. Stakeholder Engagement: Ability to communicate effectively with technical and non-technical stakeholders, including senior leadership and business users. Resilience & Adaptability: Comfortable working in an evolving technology landscape, with a proactive and security-first approach. Summary of Skills Required: The following is a summary of the key skills that the Client would like you to bring to the company. Global Enterprise level Infrastructure Management position for the last 5 years, Buy before Build mentality and demonstrable migration of Legacy VM based estates to SaaS and Azure Cloud services platforms, Global Operational team management experience (human resources, strategic delivery, operational service, audit lead for Infra, budget..) Key 3 party operational infrastructure vendor management - i.e. management of managed service partners as a team extension globally, as well as service/solution delivery partners, Migration of Legacy VM based estates to SaaS and Cloud services platforms, Legacy Infra tech to Azure knowledge/experience, Prior to the last 5 years in Enterprise Management of a global estate/user-base, a demonstrable technical infrastructure engineering level background, working on Windows Server, AD , SQL environments, Firewalls/SDWAN, and Networks (WAN &/or LAN). The Client is based in the City of London. This is a hybrid position with 3 days in the office. The salary for this role will be in the range £85K - £95K plus Benefits. Do send your CV to us in Word format along with your salary and notice period.
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CDI

Offre d'emploiIT Infrastructure & Systems Manager

Nexus Jobs Limited
Publiée le

£60k-65k
Grand Londres, Royaume-Uni
IT Infrastructure & Systems Manager We are seeking an experienced and highly motivated Senior IT Infrastructure Manager with at least 7 to 10 years experience to oversee, manage, and continuously improve the organization's IT infrastructure, enterprise systems, network environment, and end-user computing services. The successful candidate will ensure the availability, security, performance, and resilience of critical business systems while leading technical teams and supporting key stakeholders across the organization. This role requires a strong blend of technical expertise, leadership capability, operational excellence, and stakeholder management skills, within a complex enterprise environment that includes financial, trading, and treasury systems. Role Description The IT Infrastructure & Systems Manager is a full-time role based in London with a hybrid working arrangement, combining on-site presence with some work from home. This role is responsible for managing and maintaining the organization's core IT infrastructure, including servers, networks, storage, and cloud services. Day-to-day tasks include overseeing system administration, monitoring performance and availability, implementing security best practices, and coordinating backup and disaster recovery processes. The role involves leading and supporting IT operations, resolving complex technical issues, and ensuring that systems, applications, and services remain stable and secure. The IT Infrastructure & Systems Manager will collaborate with internal stakeholders, manage vendors and service providers, contribute to IT strategy and roadmaps, and document procedures, standards, and configuration changes. Qualifications Strong foundation in Information Technology and IT Operations, including infrastructure design, capacity planning, and service management. Hands-on experience with System Administration and Troubleshooting across Windows and/or Linux environments, virtualization, and cloud platforms. Proficiency in Network Security, including firewalls, VPNs, endpoint protection, access control, and security monitoring. Proven ability to manage IT projects, prioritize tasks, and deliver improvements on time and within scope. Excellent communication and stakeholder management skills, with the ability to explain technical concepts to non-technical audiences. Experience leading or mentoring IT team members or support staff is highly desirable. Relevant certifications (e.g., ITIL, Microsoft, Cisco, CompTIA, or cloud certifications) are an advantage. Bachelor's degree in Information Technology, Computer Science, or a related field, or equivalent practical experience. Infrastructure & Systems Management Administer, maintain, and optimize Windows and Linux server environments. Manage VMware virtualized infrastructure (vSphere 8 and above). Oversee enterprise backup and disaster recovery solutions using Veeam Backup & Replication. Manage Veeam ONE monitoring and Veeam Recovery Orchestrator (VRO) environments. Administer endpoint security and encryption solutions, including Symantec Endpoint Protection (SEP) and Symantec Endpoint Encryption (SEE). Support endpoint DLP, SIEM, and security monitoring tools (e.g., Splunk, Tenable). Manage patching processes using ManageEngine Patch Manager Plus. Support Microsoft 365 services and related cloud technologies. In depth understanding of Cyber security Monitor system performance, capacity, availability, and infrastructure health. Ensure compliance with IT governance, security policies, and operational standards. End-User Computing Support Provide advanced desktop, laptop, printer, Mobile device (iOS) and branch office IT support. Deliver AV support for meeting rooms, conferencing, presentations, and collaboration systems. Manage OS deployment, imaging, image creation, maintenance, and software packaging. Administer Active Directory (AD), Group Policy Objects (GPOs) and user provisioning and NTFS permissions. Support Microsoft 365 applications including Outlook, Teams, OneDrive, and SharePoint. Resolve technical incidents and service requests in line with agreed SLAs. Enterprise Applications & Financial Systems Support Support and administer business-critical applications, including: Bloomberg FXT and Refinitiv Eikon, Murex Treasury System, SWIFT Alliance Access (SAA), 1AML, SIBS, GFMS, COP Support enterprise file synchronization and replication solutions (e.g., Syncovery, other SFTP). Networking Configure and support Cisco switches and routers. Administer FortiGate firewall environments. Strong network fundamentals: DNS, DHCP, TCP/IP, LAN/WAN, Routing and connectivity troubleshooting. Monitor network performance, availability, and security posture. Security & Endpoint Management Support vulnerability management using tools such as Tenable. Manage security monitoring and log analysis tools (e.g., Splunk). Perform SSL/TLS certificate lifecycle management using OpenSSL. Create and manage CSRs, certificate chains, and private keys. Ensure adherence to cybersecurity policies, standards, and regulatory requirements. Support physical access control systems (e.g., Paxton) Governance, Documentation & Process Improvement Develop, maintain, and enforce IT policies, standards, and operational procedures. Produce system architecture diagrams, technical documentation, SOP's, and performance reports. Identify and drive opportunities for automation and service improvement. Support technology planning, infrastructure modernization, and transformation initiatives. Operating Systems Windows 11 Windows Server 2019/2022 (or equivalent enterprise environments) Red Hat Linux Infrastructure & Virtualization VMware vSphere / vCenter (v8.0.3 and above) Veeam Backup & Replication Veeam ONE, VRO Microsoft Office 365 ManageEngine Patch Manager Plus SAAS solutions SQL Server Security Symantec Endpoint Protection (SEP) Symantec Endpoint Encryption (SEE) SentinelOne – EDR/ XDR Endpoint DLP solutions Firewall administration Vulnerability management tools (e.g., Tenable) SIEM tools (e.g., Splunk) Networking Cisco Switches and Routers FortiGate Firewalls LAN/WAN networking and routing Hardware & Storage Dell PowerEdge Servers Dell PowerVault SAN Storage Technical Competencies Data analysis and operational reporting Desktop and laptop support Infrastructure monitoring and performance management Certificate lifecycle management (SSL/TLS) Windows imaging and deployment, GPO, NTFS PowerShell scripting SQL Server administration Understanding of software development lifecycle (SDLC) and deployment processes Architecture review and systems optimization Asset management 7+ years of experience in enterprise IT infrastructure and systems administration. Experience within financial services, banking, trading, or treasury environments. Proven experience managing mission-critical infrastructure and applications. Experience operating within regulated and security-focused environments. Able to provide support to VIP stakeholders This is a hybrid role with 3 days at the office in Central London. Salary for this role will be in the range £60K - £65K. Do send your CV to us in Word format along with your salary and availability.
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Freelance
CDI

Offre d'emploiSenior Windows System Engineer / Technical Coordinator – Luxembourg (H/F)

Gamme solutions
Publiée le
Administration Windows

1 an
Luxembourg
Dans le cadre du renforcement des équipes Infrastructure d'un grand établissement bancaire luxembourgeois, nous recherchons un Senior Windows System Engineer / Technical Coordinator disposant d'une solide expérience sur des environnements Microsoft critiques. Vos missionsParticiper aux projets d'infrastructure et coordonner des mini-projets techniques. Administrer et faire évoluer les infrastructures Windows Server. Automatiser les tâches via PowerShell. Participer au support de niveau 3 et au troubleshooting avancé. Améliorer la disponibilité, la sécurité et les performances des systèmes. Rédiger la documentation technique et assurer le transfert de compétences vers les équipes de support. Compétences requisesMinimum 8 ans d'expérience en environnement Microsoft. Excellente maîtrise de Windows Server 2016 / 2019 / 2022 / 2025. Expertise PowerShell (développement de scripts et automatisation). Très bonne maîtrise de : Active Directory ADFS ADCS Windows Failover Cluster Bonne connaissance des bonnes pratiques de cybersécurité Microsoft. Expérience en coordination de projets techniques. Expérience en support de niveau 3. Compétences appréciéesVMware Omnissa Horizon Réseaux (DNS, Proxy, Firewall, Load Balancer) Applications bancaires MS Project Profil recherchéExpérience dans des environnements critiques (Banque, Finance, Assurance ou Production IT). Autonome, rigoureux et organisé. Bon relationnel et capacité à travailler avec plusieurs équipes. Français et anglais professionnels. 📩 Si cette opportunité vous intéresse, merci de m'envoyer votre CV à jour, votre TJM, votre statut (freelance/portage/CDI) ainsi que votre disponibilité.
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CDI

Offre d'emploiINGÉNIEUR SÉCURITÉ INFRASTRUCTURE H/F

Savane Consulting
Publiée le

60k-70k €
Paris, France
Nous recherchons un Ingénieur Sécurité Infrastructure H/F pour rejoindre les équipes Infrastructure d'un acteur majeur de son secteur. Dans un contexte de nombreux projets de transformation des infrastructures IT, vous interviendrez principalement sur des activités de Build, de la conception à la mise en œuvre de solutions de sécurité. Vous intégrerez une équipe experte en charge des infrastructures de sécurité et participerez à la définition des architectures, à l'intégration de nouvelles solutions ainsi qu'à leur exploitation de niveau 3. Missions principales : Concevoir et mettre en œuvre des infrastructures de sécurité Assurer l'administration et le support de niveau 3 des plateformes de sécurité Participer aux projets d'évolution des infrastructures IT Concevoir les architectures réseau et sécurité en collaboration avec les équipes métiers Intégrer et déployer de nouvelles solutions de sécurité Administrer les plateformes Firewall, Proxy, Load Balancer, DNS/IPAM et outils de sécurité Rédiger la documentation technique et les procédures d'exploitation Participer à la standardisation des architectures et des bonnes pratiques Diagnostiquer et résoudre les incidents complexes sur les environnements Unix/Linux Contribuer à l'automatisation des tâches via des scripts Shell/Bash Collaborer avec les équipes infrastructure, réseau et systèmes sur les projets transverses
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Offre premium
CDI

Offre d'emploiIT Support Analyst/Engineer with Level 1 and Level 2

Nexus Jobs Limited
Publiée le
DHCP (Dynamic Host Configuration Protocol)
LAN
Microsoft SQL Server

£55k-60k
Cité de Westminster, Royaume-Uni
IT Support Analyst/Engineer with Level 1 and Level 2 Role Description This full-time IT Support Analyst/Engineer role covers both Level 1 and Level 2 support and is offered on a hybrid basis, with work primarily in London and some work from home flexibility. Day-to-day responsibilities include handling incoming support tickets, responding to user queries, and providing first-line technical assistance for hardware, software, and network issues. The role also involves performing more advanced second-line diagnostics, resolving complex incidents, escalating problems when required, and updating documentation and knowledge bases. The IT Support Analyst/Engineer will install and configure systems, manage user accounts and access permissions, monitor system performance, and assist with routine maintenance tasks and upgrades. Collaboration with other IT team members and clear communication with non-technical users are key aspects of the position. Qualifications · Candidates should possess strong Technical Support and Information Technology skills, including experience with common operating systems, hardware, and business applications. · Candidates should possess solid Analytical Skills and Troubleshooting abilities to diagnose issues, identify root causes, and deliver effective solutions. · Candidates should possess clear and professional Communication skills, with the ability to explain technical concepts to users at different levels of technical understanding. · Relevant certifications such as CompTIA A+, Network+, Microsoft, or similar credentials are beneficial, along with experience in Level 1 and Level 2 support environments. · Ability to work in a hybrid setting, manage priorities in a busy service desk environment, and maintain a customer-focused, inclusive approach when supporting diverse user groups. For this position you will have at least 5 years experience in IT as an IT Support Engineer with 1st and 2nd Level support experience - ideally in the Banking/Financial industry. In-depth knowledge of and troubleshooting experience with Windows, Office applications and conferencing applications. Responsible for the support and maintenance of the IT infrastructure and to provide IT support to staff and other group colleagues. To assist in the response to service outages and other IT related problems as well as maintenance and upkeep of for security of the systems in place. · To provide IT Support and assistance to the branch's staff in a timely manner. · Responsible for the maintenance of the IT infrastructure of the Branch by providing first & Second line support of software, hardware and networking that includes installation, configuration and troubleshooting. Support endpoint security standards (antivirus/firewall/patching/two-factor authentication). · Provide day to day support to the Admin and HR function to cover: joiners/leavers/movers process, CCTV & Paxton Card Access. · Assist the IT Manager in delivering various IT related projects by managing the day to day operational aspects of such projects. · End User Computing support for all staff. (eg Install, configure, and maintain desktops, laptops, printers, Phones/Mobiles and other IT equipment.) · Networking Fundamentals – DNS, DHCP, TCP/IP, and LAN/WAN. · Good understanding of cybersecurity measures · Coordinator between the London Users and Group IT Security on all requests for systems access and to ensure that such permissions are provided promptly, are regularly updated and that the Group Access Matrix Protocol is followed at all times. · Preserve the Assets of the Office by implementing Disaster Recovery and back up procedures and ensuring that the standards comply with Group requirements. · Provide IT support to ensure the smooth running of daily and periodic reports for the London Compliance team to ensure adherence to the Anti Money Laundering Provisions. · Undertake Data Extraction for reporting requirements for all the other stakeholders at the branch. · To hold Administrator function for some of the systems housed at the Office. Responsible for the granting of access and maintenance of system matrixOverall networking equipment monitoring (ie Network Switches, Firewall and other appliances) and support inclusive of the server room. · To plan and carry out maintenance checks to ensure IT Operations, infrastructures are running smoothly and ensure daily routine task completeness. · Manage inventory of computers, network equipment including tracking of purchased equipment and services. · To maintain and ensure that the BCP site is always ready for continuous bank operations · Important Business Services - IBS owner is to ensure the resilience of the IBS they are responsible for (Ensure appropriate RCSAs, CETs, KRIs are in place to monitor procedures and controls within their units) · Assist the HOD/Manager with implementing/putting in place, any applicable training/guidance/SOPs to staff relating to cyber security & operational resilience. · To maintain the branch Avaya IP Office Phone system and to ensure that the recording system is always up and running at all times. · To perform monthly infrastructure test and report for Risk Assessment. · Manage Incident Handling procedure (This includes monitoring as well as post-incident follow up). · Respond to IT service requests and incidents in a timely manner, prioritizing based on business impact, especially for critical banking functionsSupport the Branch operations as and when needed and any other tasks assigned by Management of the Branch. Data Integrity and Compliance Operationalize data strategy and communicate to the Data Owner or the Management any changes in their BAU requirements which involve data. · To ensure all data worked on and or/shared with internal/external clients are accurate, compliant and maintained in accordance with Company's data quality standards. · Handle all data in strict alignment with the General data protection Regulations (GDPR) principles. · Keep track of documents created by the team. · Escalate any suspected data breaches or privacy issues to the DPO promptly and without delays. · Ensuring any data sharing requests are discussed with HOD/DPO so that prior authorization is given and follows GDPR / department's SOPs. · Collaborate with DPO on data Protection Impact Assessment when introducing new systems or processes to ensure privacy risks are mitigated at the outset. Technical Skills Required - Proficient in common operating systems (Windows 11 and Linux, Server 2016 and later) - Providing AV support for branches - Software proficiency – O365, Onedrive, Teams, Sharepoint, Bloomberg, FXT, SEP, SEE, ME Endpoint Protection, Murex, Swift, 1AML, SIBS, GFMS, COP, Refinitiv, Syncovery, SQL Server, Paxton, VBR, VRO and VeeamOne - Proficient in Imaging windows machines, image creation & management, GPO, and AD - Networking Fundamentals – DNS, DHCP, TCP/IP, and LAN/WAN. - Good understanding of Vmware; ESXI, vSphere, vCenter, Fortigate Firewalls, Cisco Switches - Good understanding of patching practices and troubleshooting - Install, configure, and maintain desktops, laptops, printers, Phones/Mobiles and other IT equipment. - AV support (conference phones, Logitech meeting room solutions etc.) - Proficient in programming languages - Project management - Data analysis and reporting Bachelor or Master's degree or professional qualification in relevant discipline (IT/Information Systems/Computer Science/Technology/Programming/Information Science/System Engineering/Computing) This is a 5 days in the office role in Central London. Salary for this role will be around £55K - £60K. Do send your CV to us in Word format along with your salary and availability.
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CDD

Offre d'emploiSenior Network Engineer

Rise Technical Recruitment Ltd
Publiée le

2 mois
North Lincolnshire, Royaume-Uni
Senior Network Engineer Scunthorpe, North Lincolnshire (Hybrid Working - Onsite Once a Week or Fortnightly) Up to £68,500 + great pension + 27 days holiday + bank holidays + life assurance + health cash plan + company sick pay + EAP + standby and call-out payments + excellent training and development opportunities Are you an experienced Network Engineer with recent hands-on Aruba expertise, looking for a technically varied role where you can take ownership of a complex multi-site infrastructure, influence network design decisions, and play a key role in delivering secure, high-performing network solutions across a large enterprise environment? This is an excellent opportunity to join a well-established organisation offering a strong benefits package, flexible hybrid working, and ongoing investment in professional development. You will be responsible for supporting and enhancing a multi-site network estate, ensuring high levels of performance, availability, and security across LAN, WAN, and wireless environments. In this role you will combine operational support with project delivery, working on network upgrades, migrations, and infrastructure improvements. You will also contribute to solution design, technical documentation, and the evaluation of third-party proposals, helping to ensure solutions align with business and security requirements. The ideal candidate will have strong enterprise networking experience and recent exposure to Aruba technologies. Whilst experience across the full Aruba portfolio is not essential, knowledge of Aruba Central, ClearPass, AOS-S, AOS-CX, Aruba Wireless, or SD-WAN would be highly advantageous. Experience with Cisco networking technologies and modern firewall platforms will also be beneficial. The Role: *Support and maintain a complex multi-site network infrastructure across LAN, WAN, and wireless environments *Investigate and resolve advanced network incidents, carrying out root cause analysis *Deliver network upgrades, changes, and infrastructure improvement projects *Contribute to network design, technical documentation, and vendor solution reviews *Monitor and enhance network performance, security, resilience, and capacity The Person: *Strong experience within enterprise-level, multi-site networking environments *Solid understanding of routing, switching, VPNs, wireless networking, and network security *Recent hands-on experience with Aruba switching and/or wireless technologies *Knowledge of Aruba Central, ClearPass, AOS-S, AOS-CX, AOS-8, AOS-10, or Aruba SD-WAN is advantageous *Experience with Cisco technologies and firewall platforms such as Palo Alto or Fortinet Reference Number: BBBH277335 Rise Technical Recruitment Ltd acts an employment agency for permanent roles and an employment business for temporary roles. The salary advertised is the bracket available for this position. The actual salary paid will be dependent on your level of experience, qualifications and skill set and will be decided by our client, the employer. Rise are not responsible or liable for any hiring decisions made by the end client. We are an equal opportunities company and welcome applications from all suitable candidates.
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Les métiers et les missions en freelance pour Firewall

Consultant·e en cybersécurité

Le/ La consultant·e en cybersécurité utilise les firewalls pour analyser les vulnérabilités, recommander des solutions de protection et implémenter des politiques de sécurité afin de protéger les infrastructures des entreprises contre les attaques.

Ingénieur·e en cybersécurité

L'ingénieur·e en cybersécurité configure, surveille et optimise les firewalls pour protéger les réseaux et systèmes d’information contre les menaces externes et internes.

Administrateur·rice réseaux

L'administrateur·rice réseaux configure les firewalls dans le cadre de la gestion des réseaux pour garantir leur sécurité et prévenir les intrusions non autorisées.

Responsable sécurité informatique (CISO)

Le/ La responsable sécurité informatique supervise la gestion des firewalls dans une organisation, assurant une protection optimale des données sensibles et la conformité aux normes de sécurité.

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