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CDI

Offre d'emploiIngénieur Projet Infrastructure Systèmes & Réseaux (H/F)

Experis France
Publiée le

42k-50k €
Toulouse, Occitanie
Ingénieur Projet Infrastructure Systèmes & Réseaux (H/F) - Toulouse Nous recherchons un Ingénieur Projet Infrastructure Systèmes & Réseaux (H/F) pour intervenir au sein de la DSI sur des projets techniques structurants et contribuer activement MCO des environnements systèmes et réseaux. Vous évoluerez dans un contexte de production exigeant, au cœur des enjeux de disponibilité, de sécurité et de performance des infrastructures. Autonome et force de proposition, vous travaillerez en étroite collaboration avec les équipes internes (architecture, exploitation, sécurité) afin de garantir la stabilité et la qualité de service des plateformes. Les missions principales : Réaliser des études techniques et conduire des projets d'infrastructure. Concevoir, déployer et faire évoluer des infrastructures systèmes et réseaux. Piloter des projets techniques (Radius/NPS, intégration de nouveaux matériels, évolutions d'infrastructures). Contribuer aux choix d'architectures en collaboration avec les équipes internes. Réaliser les tests en environnement de laboratoire, préparer et accompagner les mises en production. Rédiger et maintenir la documentation technique associée. Assurer le support N3 et le MCO des environnements réseaux et sécurité. Maintenir en condition opérationnelle les infrastructures réseau et les solutions de sécurité. Traiter les incidents complexes N3 (réseaux, firewall, flux, performances). Participer aux optimisations continues : montées de version, amélioration des performances et du niveau de sécurité. Collaborer étroitement avec les équipes d'exploitation pour garantir la stabilité des services et la qualité de service globale.
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Freelance

Mission freelanceARCHITECTE TECHNIQUE ON PREMISE & CLOUD AZURE ET GCP

PROPULSE IT
Publiée le
Azure
Cloud

24 mois
325-650 €
Paris, France
Nous recherchons plusieurs Architectes Technique OnPrem & Cloud pour une mission longue chez l'un de nos clients. Niveau expérimenté à senior requis. CONTEXTE DE LA MISSION Au sein de l'équipe Architecture de la Direction des Infrastructures et de la Production du groupe, le consultant contribuera aux activités : - Etudes techniques & Design - Cadrage budgétaire - Définition des best practices d'architecture - Documentation - Accompagnement de la stratégie Move2Cloud - Co-construction des solutions - Accompagnement des équipes d'exploitation et de développement Environnement général - Plateformes E-commerce - Plateformes BackOffice & Logistique - Cloud Public Azure & GCP - Cloud Privé (Infrastructure VMWARE Infogérée) - CDN Akamai, LoadBalancing BigIP F5, Firewalling (Checkpoint & Fortinet) - Bases de données MS SQL Server, PostgreSQL, MySQL, IBM DB2, Oracle - Big Data Hadoop, Terradata, MapR, BigQuery, DataBricks - Conteneurisation Docker & Orchestration AKS - Progiciels SAP, Siebel, HRAccess DESCRIPTION DE LA MISSION - Etude des besoins issus des équipes de développement - Etude de l'évolution des composants de plateformes techniques ou de l'intégration de nouveaux services - Rédaction des documents d'architecture et d'intégration générale et détaillée - Rédaction des supports d'aide à l'exploitation et accompagnement des équipes d'exploitation durant la transition - Contribution à l'évaluation budgétaire des solutions mises en œuvre - Support N3 des équipes d'exploitation Démarrage souhaité : au plus tôt Durée de la mission : Longue Paris
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CDI
Freelance

Offre d'emploiIngénieur Infrastructure Systèmes

ANDEMA
Publiée le
Kubernetes
Oracle
Red Hat Linux

1 an
45k-55k €
350-400 €
Valence, Auvergne-Rhône-Alpes
À propos de la mission Nous recrutons, pour le compte de l'un de nos clients, un Ingénieur Infrastructure Systèmes H/F afin d'intégrer une équipe technique en charge de la conception, du déploiement et du maintien d'infrastructures critiques dans un environnement international. Vous évoluerez au sein d'une équipe d'ingénieurs spécialisés intervenant sur des projets à forte valeur ajoutée, dans des contextes exigeants où la disponibilité, la sécurité et la performance des infrastructures sont des enjeux majeurs. Vos missions Au sein de l'équipe Infrastructure, vous serez amené(e) à : Concevoir les architectures systèmes et réseaux adaptées aux besoins des projets. Participer aux études techniques et au dimensionnement des infrastructures. Installer, configurer et administrer les environnements Windows et Linux. Déployer et maintenir les plateformes de virtualisation et de conteneurisation. Réaliser les migrations techniques et les mises en production. Garantir le maintien en conditions opérationnelles (MCO) des infrastructures. Mettre en œuvre les solutions de haute disponibilité et de répartition de charge. Administrer les solutions de sauvegarde et de supervision. Assurer le support technique de niveau N2/N3 et participer à la résolution des incidents complexes. Produire la documentation technique et contribuer à l'amélioration continue des environnements. Environnement technique Systèmes Windows Server 2019 Linux Red Hat (RHEL) Virtualisation VMware Hyper-V (apprécié) Conteneurisation Kubernetes Docker Rancher Réseau & Sécurité TCP/IP DNS DHCP Firewall SSL Haute disponibilité / Load Balancing HAProxy Apache2 F5 (un plus) Base de données Oracle Serveurs Web IIS 8 / IIS 10 Sauvegarde Veeam Backup Supervision PRTG Zabbix Centreon Scripting PowerShell Bash Python (un plus)
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CDI

Offre d'emploiDatacoms Technician

Rise Technical Recruitment Ltd
Publiée le

Reigate and Banstead, Royaume-Uni
Datacoms Technician Competitive Salary + Annual Bonus + Private Healthcare + Pension + Progression + Gym Membership + Full Training London Are you an experienced Datacoms Technician looking for a varied, hands-on role where you can work on global communications infrastructure, bespoke solutions and cutting-edge technologies across satellite, LTE and enterprise networks? This is an exciting opportunity to join a specialist engineering team delivering advanced communication solutions to customers operating in remote and challenging environments. You will play a key role in designing, implementing and supporting complex network systems, working across both in-house product development and customer-facing projects. In this role, you will collaborate closely with internal teams and external clients to deliver tailored network solutions, from initial design through to deployment and ongoing support. You will also be responsible for resolving escalated technical issues, contributing to product development and ensuring the performance and reliability of critical communication systems. The ideal candidate will have strong networking fundamentals, hands-on experience with firewalls, routing and switching, and a proactive approach to problem solving. This role also offers opportunities for travel, exposure to cutting-edge technologies and continuous professional development within a highly technical environment. The Role: Support and maintain enterprise and customer network solutions Diagnose and resolve complex, escalated technical issues Assist in the design, build and deployment of network infrastructure Contribute to product evaluation, development and system integration Produce and maintain technical documentation for projects The Person: Strong knowledge of TCP/IP, routing, switching and firewall technologies Experience with satellite communications or enterprise IT systems Ability to troubleshoot complex network issues effectively Professional, proactive and able to work both independently and as part of a team Relevant qualification in IT, Networking or Engineering (degree or equivalent) Reference Number:BBBH275875 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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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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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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Freelance
CDI

Offre d'emploiChef de Projet Réseau – Intégration de filiales sur Saint Quentin en Yvelines

EterniTech
Publiée le
Cisco
DNS
Fortinet

3 mois
Yvelines, France
Contexte de la mission Dans le cadre de projets de transformation IT et d'opérations de croissance externe, nous recherchons un Chef de Projet Réseau / Infrastructure confirmé pour piloter l'intégration de nouvelles filiales au sein du système d'information du groupe. Le consultant interviendra sur des projets d'intégration d'infrastructures réseau et télécoms, en garantissant le respect des engagements en termes de coûts, délais, qualité et sécurité. Missions principales Piloter les projets d'intégration de nouvelles filiales sur les périmètres réseau, télécom et infrastructure IT. Assurer le cadrage des projets : périmètre, planning, budget, ressources et gouvernance. Coordonner les différentes équipes techniques : Réseau, Sécurité, Systèmes, Télécoms ainsi que les prestataires externes. Organiser et animer les instances projet (comités projet, COPIL, points de suivi). Suivre les risques, les dépendances, les alertes et les plans d'actions associés. Garantir l'intégration des infrastructures filiales dans le SI groupe. Piloter les phases de migration, de bascule et de mise en production. Assurer le reporting auprès des parties prenantes et du management. Compétences techniques recherchéesInfrastructure Réseau & Télécom LAN / WAN SD-WAN VPN Site-to-Site Wi-Fi entreprise Architecture réseau d'entreprise Firewall / sécurité réseau DNS / DHCP Connectivité inter-sites Gestion de projet Infrastructure Pilotage de projets techniques complexes Cadrage projet, planning, budget, ressources Gestion des risques et dépendances Coordination d'équipes techniques multidisciplinaires Gestion de fournisseurs et partenaires Expérience attendue Expérience significative en gestion de projets d'infrastructure réseau. Expérience sur des projets d'intégration de filiales, fusion-acquisition (M&A), migration ou transformation SI. Bonne compréhension des enjeux de sécurité réseau et d'interconnexion multi-sites.
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CDD

Offre d'emploiInfrastructure Engineer (DV Cleared - Inside IR35)

LA International Computer Consultants Ltd
Publiée le

12 mois
HR1 3AE, Pipe and Lyde, England, United Kingdom
We are looking for a DV cleared Infrastructure Engineer to join a growing operations support team. The preferred candidate will demonstrate effective application of Infrastructure and extensive knowledge across a variety of technologies such as Linux (Ubuntu / CentOS), Microsoft Windows Server (including services such as AD, DNS, DHCP) and virtualisation (Hyper-V), Microsoft Stack Technologies (Sharepoint, SQL Server, Skype for Business / Teams), networking technologies and storage. The role will provide technical exposure variance across both outcomes based project activities and operational (Business as Usual) support activities. The duties of the role will also include providing remote and on-site support. There is also a requirement to provide out of hours on call support. You will be expected to contribute towards the creation and ongoing maintenance of technical documentation and provide material to support the project work or the operational support service. Experience includes: - Have excellent knowledge of Virtualized Environments such as VMware and Hyper-V; - Have excellent knowledge of Windows Server Environments, from Server 2003 - 2019, including OS build, AD, DNS, DHCP and GPO from design to implementation and support; - Have strong Linux system administration skills (Ubuntu / CentOS); - Have good general knowledge of TCP/IP and networking technologies including load balancing and firewalls; - Have good general knowledge of Microsoft stack technologies such as SharePoint, Skype for Business / Teams, MS SQL, MS System Centre, Office365, MS Exchange & CLI tooling such as PowerShell; - Have good general knowledge of SAN storage technologies; - Have excellent analysis and problem solving skills, taking ownership of complex incidents ensuring these are resolved to the satisfaction of the customer; - Possess excellent communication skills; - Have experience of producing and updating technical documentation to a high standard; Due to the nature and urgency of this post, candidates holding or who have held high level security clearance in the past are most welcome to apply. Please note successful applicants will be required to be security cleared prior to appointment which can take a minimum 18 weeks. LA International is an award-winning partner of choice for many of the world's most influential companies and government organisations. Holding Enhanced Government Security Accreditation, we are recognised as the European market leader in the delivery of Security Cleared talent to organisations that demand the very highest levels of security, compliance and assurance. An award-winning organisation, having secured the prestigious Queens Award for Enterprise: International Trade over multiple years. We are committed to fostering an inclusive, equitable and accessible workplace where everyone feels valued and supported. We welcome applications from all individuals, regardless of background or identity, and we encourage candidates who may not meet every listed requirement to still apply. If you require any adjustments or support during the recruitment process, please let us know and we will work with you to ensure a fair and accessible experience. Please Note: If a high volume of applications is received, only candidates shortlisted will be contacted.
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Freelance

Mission freelanceIngénieur VMware NSX / VCF — Freelance — Paris

Lombard Tech
Publiée le
Ansible
Data Center
Terraform

12 mois
Paris, France
Nous recherchons un Ingénieur VMware NSX / VCF senior pour intervenir sur une mission longue au sein d'un environnement grand compte à Paris. CONTEXTE Renforcement de l'équipe en charge de la plateforme VMware Cloud Foundation et de la virtualisation réseau NSX-T, dans un environnement de production critique et fortement intégré. MISSIONS PRINCIPALES - Administrer, maintenir et faire évoluer les environnements VMware Cloud Foundation. - Exploiter et optimiser NSX-T : segments, routage, edge nodes, distributed firewall et micro-segmentation. - Participer aux déploiements, upgrades, migrations et opérations de lifecycle management via SDDC Manager. - Diagnostiquer et résoudre les incidents complexes de niveau 3 sur NSX, vSphere, vCenter et vSAN. - Contribuer à la sécurisation, la résilience et la performance de la plateforme SDDC. - Produire les HLD/LLD, procédures d'exploitation et documentation technique. - Collaborer avec les équipes réseau, sécurité, systèmes et cloud. - Automatiser les tâches récurrentes lorsque pertinent via PowerCLI, Terraform, Ansible ou API. PROFIL RECHERCHÉ - Expérience confirmée en production sur VMware NSX-T et VMware Cloud Foundation. - Très bonne maîtrise de vSphere, vCenter, ESXi et vSAN. - Solides compétences en réseau datacenter, routage, firewalling et micro-segmentation. - Expérience des upgrades, migrations et du troubleshooting avancé. - Autonomie, rigueur documentaire et capacité à intervenir dans un environnement grand compte. - Anglais professionnel. - Certifications VMware appréciées. MODALITÉS - Freelance / portage. - Paris, avec télétravail partiel. - Démarrage dès que possible. - Mission initiale de 12 mois, renouvelable. - TJM jusqu'à 700 € selon expérience.
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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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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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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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