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Freelance

Mission freelanceIngénieur Réseau H/F

CELAD
Publiée le

1 an
280-320 €
Beaumont-Hague, Normandie
Envie d'un nouveau challenge... CELAD vous attend ! Nous poursuivons notre développement et recherchons actuellement un(e) Pilote Réseau H/F pour intervenir chez un de nos clients. Contexte : Vous intervenez au sein d'un environnement réseau et télécom complexe, dans le cadre du maintien en conditions opérationnelles et de l'évolution des infrastructures. En support du responsable réseau, vous participez à l'exploitation quotidienne des infrastructures, au suivi des incidents ainsi qu'à l'accompagnement des projets de modernisation. Une partie de votre activité sera également consacrée au suivi de petits travaux réseau et à la coordination des différents intervenants. Votre mission : Au sein d'une équipe projet, vous serez en charge de : - Assister le responsable réseau dans l'exploitation, l'administration et l'évolution des infrastructures - Veiller à la disponibilité et au bon fonctionnement des équipements réseau : switchs, firewalls, Wi-Fi, etc. - Coordonner avec les prestataires le traitement et le suivi des incidents techniques - Participer à la résolution des incidents de niveaux 2 et 3 et réaliser les diagnostics nécessaires - Participer aux projets de modernisation, de déploiement et de sécurisation des infrastructures - Suivre les petits travaux réseau et coordonner les différents prestataires - Participer à l'installation, au paramétrage et à la validation des composants réseau - Contribuer à l'amélioration continue, à la fiabilisation et à l'optimisation des infrastructures - Veiller au respect des niveaux de qualité de service et des SLA - Maintenir la documentation technique à jour
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Freelance
CDI

Offre d'emploiArchitecte opérationnel et appui PO

R&S TELECOM
Publiée le
Microsoft Access

12 mois
40k-48k ¤
400-480 ¤
Île-de-France, France
Contexte de la mission : Le consultant pressenti pour la mission rejoindra le COoE (Cloud Center of Excellence) de l'un de nos clients du secteur de l'énergie, dans un rôle d'architecte opérationnel avec une fonction d'appui PO pour accompagner les équipes techniques et métiers. Tâches à réaliser : Garantit la mise à disposition et l'exploitation opérationnelle des environnements Cloud, la gestion des ressources (compute, réseau, stockage, IAM), l'intégration avec les outils SI (authentification, supervision, sécurité), l'automatisation des tâches récurrentes via Infrastructure as Code (IaC) et pipelines CI/CD ainsi que le traitement des tickets (onboarding de comptes, offboarding, ajout/suppression/modification de VPC, modifications ou évolutions de configuration) · Participe à la mise en œuvre opérationnelle des choix techniques validés en architecture, en collaboration avec les équipes internes travaillant sur d'autres Landing Zones multi-cloud · Veille à la disponibilité, la sécurité et la scalabilité des services Cloud · Accompagne les équipes projets grâce à un support opérationnel continu, la fourniture de documentation, et le transfert de compétences, afin de garantir une exploitation fiable et durable. Le document décrit une prestation sur deux lots. · Contribue à la construction, au déploiement et à l'évolution du socle cloud, en veillant à sa fiabilité, son automatisation et sa capacité à évoluer rapidement en fonction des usages. Il code et déploie via Infrastructure as Code (IaC) et pipelines CI/CD, et garantit l'adéquation entre les besoins des projets internes et les solutions d'infrastructure mises à disposition · Vérifie et ajuste les capacités de la plateforme pour assurer le passage à l'échelle, tout en collaborant avec les équipes FinOps pour optimiser les déploiements (choix des services, allocation des ressources, ajustements en fonction des usages) · Accompagne les équipes internes dans l'adoption de la Landing Zone au travers d'un support concret, de documentation et de transfert de compétences, afin de renforcer leur autonomie et la pérennité des déploiements. Il travaille en proximité avec les ingénieurs solutions applicatives pour capter leurs besoins et intervenir en amont sur les évolutions de la Landing Zone, les architectes transverses et systèmes et l'ensemble des partenaires techniques des équipes Clouds Compétences recherchées : Obligatoires : Cloud et Services GCP Compute : Compute Engine, Cloud Run Stockage et Bases de données : Cloud Storage, BigQuery, Cloud SQL, Firestore Réseau et Sécurité : VPC, Subnets, Peering, Cloud NAT, Cloud VPN Firewall Rules, Cloud Armor (WAF), Cloud IDS Identity and Access Management (IAM), Service Accounts, Workload Identity Cloud KMS (gestion des clés), Secret Manager Observabilité et Supervision : Cloud Logging, Cloud Monitoring, Cloud Trace, Error Reporting FinOps / Gestion des coûts : Recommandations GCP, Budgets et Alertes, Labels et Cost Allocation DevEx / Automatisation : Cloud Build, Artifact Registry, Deployment Manager, Terraform avec GCP Provider Intégration SI et Sécurité d'Entreprise Active Directory / LDAP pour la fédération des identités DNS interne et externe (Cloud DNS + DNS on-prem) Solutions de bastion et jump host pour accès sécurisé Centralisation des logs Supervision et monitoring hybrides CI/CD et Infrastructure as Code Terraform et modules GCP Pipelines CI/CD : GitLab CI Scripts Python / Bash pour intégration et automatisation
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Freelance
CDI

Offre d'emploiArchitecte Technique

CAPEST conseils
Publiée le
AIX (Advanced Interactive eXecutive)
Azure
F5

3 mois
Maisons-Alfort, Île-de-France
Télétravail : 1 jour/semaine Bien que faisant partie intégrante de l'équipe Architecture de la Direction des Infrastructures et de la Production, le consultant sera détaché auprès des équipes de la Digital Factory du groupe et contribuera aux activités : o Accompagnement des équipes de la Digital Factory afin d'identifier, qualifier et répondre aux besoins d'infrastructures des projets ou évolutions fonctionnelles o Etude de faisabilité technique, cadrages et restitutions techniques et budgétaires o Définition des best practices d'architecture en garantissant la conformité aux politiques internes, aux exigences réglementaires et aux cadres de sécurité o Documentations techniques (DAT, HLD…) o Support et accompagnement aux équipes d'exploitation et de développement dans les phases projets o Veille technologique Cette notion de détachement auprès de notre Digital Factory a pour objectif de catégoriser les demandes exprimées en vue de les adresser soit via un processus accéléré ou via le processus de traitement en mode projet Description Il définit l'architecture technique de tout ou partie du système d'information. Il garantit la cohérence et de la pérennité de l'ensemble des moyens informatiques, en exploitant au mieux les possibilités de l'art, dans le cadre du plan d'urbanisme de l'entreprise. Compétences Windows : Maitrise Linux (RedHat, Suse) : Maitrise Cloud Privé Virtualisation (VMWare, LPAR) : Expert Load Balancing (Application Delivery Controller) : Maitrise Content Delivery Network (Cache, Sécurité, Bot Management) : Connaissance Sécurité & Firewall (WAF, Antivirus, EDR) : Connaissance Cloud Provider Azure : Maitrise Gestion de sources & CI/CD (Gitlab) : Connaissance Production documentaire (Confluence, Office) : Expert Gestion de Projet (Jira) : Maitrise Conteneurisation (Docker) : Connaissance Compétences clés Obligatoire Cloud Provider Microsoft Azure- Operating System : AIX, Redhat, Windows, Suse Important Cloud Provider Google GCP- Load balancing: BigIP F5
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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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CDI

Offre d'emploiIngénieur Réseau & Télécom Junior (H/F) CDI

SQUARE ONE
Publiée le
Aruba
BGP (Border Gateway Protocol)
FortiGate

25k-30k €
La Hague, Normandie
Dans le cadre du renforcement d'une équipe Infrastructure, nous recherchons un(e) Ingénieur Réseau & Télécom Confirmé(e) pour intervenir sur l'exploitation, l'administration, la sécurisation et l'évolution des infrastructures réseau d'un environnement critique. Vous interviendrez en support du Responsable Réseau afin de garantir la disponibilité, la performance et la sécurité des infrastructures LAN/MAN/WAN, tout en participant aux projets de modernisation et de déploiement. Le poste combine des activités de RUN, BUILD, support N2/N3 et évolution des infrastructures. Vos missions Vous serez notamment en charge de : Assurer le maintien en condition opérationnelle des infrastructures réseau et télécom ; Garantir la disponibilité des équipements : switchs, routeurs, firewalls, Wi-Fi ; Administrer et exploiter les infrastructures LAN / MAN / WAN ; Diagnostiquer et résoudre les incidents réseau de niveaux 2 et 3 ; Analyser les dysfonctionnements et mettre en œuvre les actions correctives ou solutions de contournement ; Coordonner avec les équipes d'infogérance le traitement et le suivi des incidents techniques ; Participer aux études d'évolution et de modernisation des architectures réseau/télécom ; Participer aux phases de Design, BUILD, installation, configuration et mise en production ; Installer, paramétrer, qualifier et valider les équipements et composants réseau ; Gérer les évolutions et changements sur les infrastructures ; Participer à la sécurisation de l'architecture réseau et à l'application des règles de sécurité ; Assurer le suivi des opérateurs télécom et des différents intervenants techniques ; Participer au capacity planning des infrastructures ; Suivre la qualité de service et le respect des SLA ; Piloter et suivre les prestataires intervenant sur les travaux réseau ; Maintenir à jour la documentation technique et la cartographie des infrastructures ; Être force de proposition dans une démarche d'amélioration continue, de fiabilisation et d'optimisation du réseau. Compétences techniques recherchées Une maîtrise confirmée des protocoles réseau est attendue, notamment : TCP/IP | BGP | OSPF | MPLS | VXLAN | STP | QoS Vous disposez également de compétences et bonnes connaissances sur : LAN / MAN / WAN | Cisco | Aruba | Fortinet / FortiGate | Routing | Switching | Wi-Fi | Firewalling | Sécurité réseau | Supervision | Troubleshooting N2/N3 La connaissance de Cisco et/ou Aruba ainsi que de Fortinet/FortiGate est particulièrement appréciée.
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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 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'emploiMS Dynamics CRM Systems Administrator

Nexus Jobs Limited
Publiée le

Trumbull, Connecticut, États-Unis d'Amérique
MS Dynamics CRM Systems Administrator – Trumbull CT USA Our Client is implementing a large scale system overhaul including changing and standardizing the core ERP and CRM infrastructure to a Microsoft Dynamics and Azure platform. Over the next 2 years, the systems will be implemented in stages and we are now looking for three Regional CRM System administrators (One in each of the following locations: In Trumbull CT (USA), Måløv/Copenhagen (Denmark) and Singapore or Mumbai) to support the implementation and the ongoing commercial operations. As Regional CRM System Administrator you be responsible for Application and System Administration support in the region. You will report to the CRM Technical Lead and be the bridge between regional Commercial Operations and User groups and the Central CRM development team, where your responsibility is maintaining the system, resolving issues and escalating change requests. You will also work closely with our regional Helpdesk and SuperUsers providing training and knowledge transfer to ensure quality first line system support. Your system admin responsibilities will primarily be focused on Microsoft dynamics Customer Engagement (CRM), Dynamics for Marketing but also include other solution softwares like Alignstar Territory Alignment, Xactly Performance Management and the integration with our ERP System Dynamics Finance & Operations. As The CRM Systems Administrator you will be required to perform the following tasks: Perform all administrative functions for CRM system including, monitoring data feeds, updating data values, adjusting workflows, creating new reports/dashboards, etc Act as central point of contact for all change requests and system alteration requests (BPC); working with sales, marketing, operations, and IT leadership to assess, prioritize and implement as needed Deploy Microsoft Dynamics CRM solutions and Deploy SQL Integration Services packages. Refresh and munge production databases for staging, test and development environments. Assist Development team troubleshoot issues with network, Active Directory, deployment, Windows and PowerShell. Work with development and engineering team to automate, build and test CRM solutions. Configure, implement, monitor and maintain staging environments. Troubleshoot issues and provide analysis and recommendations for resolution and prevention. Monitor and analyze system performance and provide recommendations for improvement, including system tuning and configuration changes. Provide Tier 2 and 3 association support Support and participate in the deployment of the entire Dynamics solution including but not limited to application, DB, Web Server, internet-facing deployment To successfully perform the mentioned tasks CRM Systems Administrator will require the following skills: 3+ years of Microsoft Dynamics CRM Administration experience cloud infrastructure preferred. Power BI Reporting knowledge and good hands on experience creating Dashboard, reports and data exports for business Good knowledge of Microsoft Power Automate, Flows and workflows Demonstrated ability to learn new systems and applications quickly Experience implementing and supporting Windows clients within a production environment. Strong comprehension of networking concepts such as DNS, DHCP, Email, HTTP, SSL, and TCP/IP protocols. Strong troubleshooting skills (networking, virtualization, Active Directory, Windows Server, Windows Firewall) The ability to identify the root causes of issues by analyzing patterns and trends. 3+ years writing PowerShell scripts. 2+ years Windows Server Administration. This position will be based in Trumbull CT USA The salary for this position will be in the range $90K - $130K + Benefits. Please do send your CV to us in Word format along with your salary and availability.
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CDI

Offre d'emploiIT Infrastructure Support Manager

Nexus Jobs Limited
Publiée le

£75k-90k
Grand Londres, Royaume-Uni
We are currently seeking a Senior IT Support Manager. In this role, you will perform support for our employee population, analyze our current systems and assets, recommend and implement solutions and upgrades, and provide training. Our ideal candidate has extensive knowledge of network maintenance, experience managing staff, and advanced industry knowledge to keep us on the cutting edge. From day one, you'll have an immediate impact on the day-to-day efficiency of our IT operations, and an ongoing impact on our overall growth. Objectives of this Role ●Lead large IT projects, including the design and deployment of new IT systems and services ●Maintain essential IT operations, including operating systems, security tools, applications, servers, email systems, laptops, desktops, software, and hardware ●Own projects, solutions, and key responsibilities within a larger business initiative ●Handle business-critical IT tasks and systems administration ●Research and evaluate emerging technologies, hardware, and software ●Track and maintain hardware and software inventory Responsibilities for IT Manager ●Monitor performance of information technology systems to determine cost and productivity levels, and to make recommendations for improving the IT infrastructure ●Help define IT infrastructure strategy, architecture, and processes ●Analyze business requirements by partnering with key stakeholders across the organization to develop solutions for IT needs ●Assess vendors and develop test strategies for new hardware and software ●Troubleshoot hardware and software issues related to internal IT ●Supervising daily operations of network and server infrastructure ●Aligning IT infrastructure with current and future business requirements and goals ●Evaluating risk, developing network recovery and backup processes ●Assessing and purchasing new and replacement hardware ●Testing, troubleshooting and adjusting information systems to operate effectively ●Implementing security of the network, data and its storage and communication systems ●Ensure network components meet business needs and work together seamlessly, using the full range of capabilities, and stay informed about new features and competitive solutions ●Train employees on both software and hardware, troubleshoot, and provide technical support when needed ●Develop and execute disaster procedures, and maintain data backups ●Manage information technology and computer systems ●Identify problematic areas and implement strategic solutions in time ●Preserve assets, information security and control structures ●Proven working experience as an IT Manager or relevant experience ●Excellent knowledge of technical management, information analysis and of computer hardware/software systems ●Expertise in data center management and data governance ●Hands-on experience with computer networks, network administration and network installation Qualifications for IT Manager ●Bachelor's degree in Information Technology, Computer Science, Information Systems, or a related field, or equivalent experience ●5-7 years experience in IT management ●Experience leading and managing large IT projects and rolling out IT infrastructures across various technologies ●Excellent working knowledge of computer systems, security, network and systems administration, databases and data storage systems, and phone systems ●Strong critical thinking and decision-making skills ●Excellent project management skills and strong ability to prioritize ●Firm grasp on IT infrastructure and operations best practices ●Experience across different software solutions, including: desktop operating systems (MS Windows, MacOS), server operating systems (MS Windows, Linux), cloud-based technologies (Google Workspaces, AWS, SD-WAN), SaaS solutions (Okta, Dynamics365, Microsoft365), mobile (iOS, Android), backup and recovery procedures, and system performance monitoring. ●Experience across different hardware solutions, including: Cisco Switches/Routers, Meraki/Palo Alto Firewalls, Meraki Wireless Access Points; Cisco Unified Communications. ●Expertise with implementing, configuring, and testing solutions ●Proven leadership skills ●Strong creative and analytical thinking ●Professional certifications preferred (i.e. A+, Network+, CCNA, MCP)
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Freelance

Mission freelanceIngénieur Réseau et Sécurité

Comet
Publiée le
Cisco
Cisco ACI
Cisco ASA

218 jours
350-550 €
Île-de-France, France
Bonjour à toutes et à tous, notamment aux Ingénieurs Réseaux & Sécurité Freelance 👨‍💻🌐🔐 🔎 Je cherche un(e) Ingénieur Réseaux & Sécurité pour rejoindre une équipe en charge des Fondations du SI au sein d'un environnement grands comptes. Tu intégreras une équipe Agile responsable de la conception, de l'évolution et du maintien en condition opérationnelle des infrastructures et services réseaux mis à disposition des équipes de développement et des applications de la DSI. 💻 Ce que tu vas faire : Assurer le provisioning, le dépannage, la mise en service et le remplacement des équipements réseaux (Switches, Points d'Accès WiFi, etc.) Administrer et faire évoluer les infrastructures Cisco Nexus, Catalyst et ACI Gérer les flux réseaux, les règles de sécurité et les accès VPN Administrer et assurer le troubleshooting des firewalls Fortinet, Cisco ASA et des solutions de sécurité associées Gérer et maintenir les services DNS, DHCP et les solutions F5 GTM/LTM Administrer le proxy SSE Netskope et gérer les demandes de bypass proxy Assurer le support et la résolution des incidents réseaux complexes Participer à la gestion des liaisons opérateurs WAN et SD-WAN Contribuer à l'amélioration des outils de supervision, d'IPAM et d'automatisation Rédiger et maintenir la documentation technique et les procédures d'exploitation Accompagner les équipes utilisatrices avec une approche orientée service et satisfaction client 🎯 Stack technique : Cisco Nexus / Cisco ACI / Cisco Catalyst / Fortinet / Cisco ASA / Netskope SSE / F5 GTM-LTM / DNS / DHCP / SD-WAN / WiFi Extreme Networks / LibreNMS / NetBox 🕵️‍♂️ Profil recherché : Expérience confirmée en ingénierie réseaux et sécurité Solides compétences en switching, routage IP et troubleshooting réseau Bonne maîtrise des environnements Cisco (Nexus, Catalyst, idéalement ACI) Expérience sur les firewalls Fortinet et/ou Cisco ASA Connaissance des services DNS, DHCP et des solutions F5 Expérience sur les environnements proxy et sécurité réseau Sens du service et capacité à interagir avec différents interlocuteurs techniques et fonctionnels Expérience en environnement Agile appréciée Des compétences en scripting, supervision ou automatisation seraient un plus 🚀 Les plus de la mission : Intervention sur un socle technique stratégique Environnement réseau et sécurité riche et varié Forte diversité technologique Équipe Agile et collaborative Mission mêlant ingénierie, exploitation et amélioration continue 📍 Localisation : Ile de France : 🏡 Rythme hybride 📅 Démarrage : ASAP ⏳ Mission longue durée Qu'en penses-tu ? Si tu es un(e) Ingénieur Réseaux & Sécurité Freelance et que tu souhaites intervenir sur un environnement technique stimulant et à forte visibilité, je serais ravi(e) d'échanger avec toi ! Une belle journée à toutes et à tous ☀️
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CDI

Offre d'emploiEU IT Solution Manager

Nexus Jobs Limited
Publiée le

£55k-60k
Grand Londres, Royaume-Uni
EU IT Solution Manager To be part of the IT Leadership Team and working closely with the European IT Director in supporting the transformation of the IT department to deliver quality IT services and associated support to our businesses across Europe. Accountable for the strategy, design, and deployment of technology solutions for IT systems and services across all Company European businesses to ensure they are simplified, standardised, reliable, and cost effective. Ensure that the Capacity and Availability of the IT systems and services can support core business functionality as and when it is required. Provide specialist 3rd line support when required. Define, measure and record service KPIs that will identify areas for development and deliver continuous improvement of IT services, processes, and support. Facilitate the education and development of 1st and 2nd line support teams. This role will enjoy hybrid working, splitting time between home and the IT Support Office, with occasional travel to the London office and other schools / business locations. Support the design, build and deployment of core IT systems and services: o Platforms – Physical hosts, virtual hosts (ESXi), Storage & Databases, SAAS Solutions, Monitoring, & backups. Networks – WAN, LAN, VPN, Wi-Fi, Firewalls, & Filtering. Cyber Security – Protection, Education, Audit, Disaster Recovery, & Business Continuity. • Review, develop and enhance the continued delivery of 1st class student learning through IT. • Identify and design solutions to enhance operations and solve business problems. • Support IT Teams in all activities that lead to the successful implementation of new solutions. • Direct the maintenance, monitoring and backup/restore of the European IT Services. • Facilitate the provision of 3rd line support to Europe IT Services, escalating to Group IT as required. • Manage major service incidents and problems through to resolution as directed. • ITIL process owner for Capacity and Performance; Availability; IT Service Continuity. • Provide technical escalation support and/or assist to IT colleagues in troubleshooting faults. • Support, guide and/or manage IT projects as directed by the European IT Director. • Audit and review the technical integrity of core systems and services. • Review operating efficiencies to facilitate and accommodate business growth. • Define, document and disseminate IT procedures, and standards. • Manage and maintain a knowledge base for core systems and services. • Any other reasonably requested duties. Excellent interpersonal skills including communicating effectively and professionally with people at all levels of the organisation. • Strong technical leadership ability and team spirit with a can-do attitude. • Self-motivation, effective time management and the ability to work unsupervised. • Must be able to use initiative and work under pressure, consistently employing a customer centric approach. • Able to demonstrate excellent analytical skills, problem solving, creative thinking and decision-making to design solutions and resolve issues. • Flexibility to work in various locations when required. IT Support environment (3rd line support) ITSM tools and methodology ITIL practice and methodology IT Project Delivery IT Architecture Must be degree educated with an ITIL Foundation. Salary for this position will be up to £60K. The position will be hybrid/remote with meetings in Central London. Please dos end your CV to us in Word format along with your salary and notice period.
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CDI

Offre d'emploiIngénieur Systèmes, Réseaux & Support Applicatif (H/F)

DCS EASYWARE
Publiée le

Paris, France
Dans le cadre du renforcement d'une DSI évoluant dans un environnement international, nous recherchons un Ingénieur Systèmes, Réseaux & Support Applicatif (H/F). Intégré(e) à un pôle Architecture, Solutions & Ingénierie, vous interviendrez principalement sur des sujets systèmes, réseaux et infrastructure, tout en assurant une partie de l'exploitation et du support des applications. Vous travaillerez en étroite collaboration avec les équipes infrastructure, architecture, ingénierie, DevOps et métiers. Vos missions Systèmes, réseaux & projets – 60 à 70 % Administrer et configurer les comptes de services, groupes Active Directory / Microsoft Entra ID et GPO. Piloter les demandes liées au SSO sous Okta, aux DNS et aux accès applicatifs. Gérer les demandes d'ouverture de flux et ports firewall et assurer le suivi des accès internes et externes. Configurer les environnements Windows Server et Linux (RedHat / Rocky Linux) nécessaires au fonctionnement des applications. Installer et gérer les certificats SSL. Superviser les applications avec Datadog et contrôler le bon fonctionnement des brokers de messages ActiveMQ et Solace. Accompagner les projets d'infrastructure : déploiement d'applications sur de nouveaux sites, préparation des configurations réseau et applicatives. Participer aux projets de migration de VM vers AWS, ainsi qu'aux migrations et décommissionnements d'applications legacy. Contribuer à la réduction de la dette technique et à l'amélioration continue des environnements. Support applicatif & exploitation – 30 à 40 % Diagnostiquer les incidents systèmes et réseaux pouvant impacter les applications. Prendre en charge et suivre les incidents via ServiceNow, en coordination avec les différentes équipes techniques. Assurer le monitoring des interfaces et flux de données et déclencher les actions correctives nécessaires. Maintenir à jour la documentation technique et les procédures dans Confluence. Assurer le suivi des évolutions et projets dans JIRA. Travailler en binôme avec un technicien applicatif afin de garantir la continuité de l'exploitation et du support
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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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