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Administrateur Réseaux & Sécurité F/H - Nantes Contexte Dans le cadre du renforcement de nos équipes en Services Managés, Experis recherche un Administrateur Réseaux pour intervenir auprès d'un acteur du secteur Retail. Vous évoluerez au sein d'une équipe de 4 administrateurs dédiée au maintien en condition opérationnelle et à l'évolution des infrastructures réseaux. Vos missions Administrer et maintenir les infrastructures réseaux Assurer le maintien en condition opérationnelle (MCO) Traiter les demandes de services et incidents Gérer les équipements de sécurité (firewalls) : règles, flux, routage Participer aux projets de renouvellement et d'optimisation des infrastructures Intervenir ponctuellement en heures non ouvrées (HNO)

Dans le cadre d'une mission de longue durée au sein d'une DSI d'envergure, nous recherchons un(e) Architecte Cybersécurité expérimenté(e) pour renforcer une équipe d'expertise dédiée à la sécurité des systèmes d'information. Vous interviendrez en étroite collaboration avec les équipes agiles afin de garantir un haut niveau de sécurité tout au long du cycle de vie des projets. À ce titre, vos principales responsabilités seront les suivantes : Définir et faire évoluer les référentiels et exigences de sécurité (doctrines, exigences non fonctionnelles, standards). Accompagner les équipes projets dans la mise en conformité des applications et infrastructures. Challenger les résultats d'audits de sécurité (pentests, Red Team) et piloter la remédiation des vulnérabilités identifiées. Contribuer à la stratégie cybersécurité et à l'amélioration continue des pratiques. Réaliser une veille technologique active sur les innovations en cybersécurité et en intelligence artificielle. Parmi les sujets prioritaires de la mission : Accompagner les équipes dans l'amélioration des pratiques DevSecOps et le suivi des indicateurs de sécurité. Déployer et promouvoir l'adoption de solutions de cybersécurité (DLP, CNAPP, SSE, DMARC, Cloud souverain, etc.). Participer aux projets de chiffrement avancé et préparer les architectures aux enjeux post-quantiques. Valider la conformité sécurité des nouveaux socles techniques et applications. Contribuer aux projets liés à l'intelligence artificielle générative et à la sécurisation des usages des LLM et des systèmes agentiques. Informations complémentaires : Démarrage : début août Localisation : Maisons-Alfort Organisation : 2 jours sur site / 3 jours en télétravail Mission longue durée

Bonjour, Je suis à la recherche d’un Administrateur Réseaux et Sécurité à Lyon : Missions principales : • Administrer et maintenir les solutions de sécurité réseau (Fortinet, firewalling) • Concevoir et déployer des architectures sécurisées (on‑premise et cloud) • Gérer les politiques de sécurité et les règles de filtrage • Mettre en œuvre et exploiter les solutions VMware NSX / NSX‑T • Assurer la segmentation réseau et la micro‑segmentation • Analyser les incidents de sécurité et proposer des remédiations • Assurer le MCO/MCS des infrastructures réseau et sécurité • Participer aux projets de transformation et de migration (SDN, virtualisation réseau) • Optimiser les performances et renforcer la résilience des infrastructures • Documenter les configurations et procédures • Assurer le support niveau 2/3 et accompagner les équipes internes • Mettre en place des bonnes pratiques de cybersécurité

Contexte : Pour un de nos clients dans le secteur de la détection incendie, Viveris recherche un ingénieur développement logiciel embarqué, pour rejoindre l'équipe R&D sous la responsabilité d'un chef de projet. Responsabilités : - Intervenir à la fois sur le développement et la maintenance ; - Développer des applications embarquées (C/C++) ; - Participer aux phases de spécification, conception, développement et validation ; - Analyser et corriger les non-conformités issues du terrain ; - Diagnostiquer les anomalies et identifier les causes racines ; - Proposer et mettre en oeuvre des solutions robustes et pérennes ; - Assurer la traçabilité et la qualité des correctifs ; - Réaliser un reporting clair, structuré et régulier auprès du management ; - Synthétiser des sujets techniques pour des interlocuteurs non spécialistes ; - Partager les connaissances et contribuer à l'amélioration continue des pratiques.

Les environnements Réseau & Sécurité à grande échelle n’ont plus de secret pour toi et tu souhaites mettre à profit ton expertise sur des infrastructures critiques ? C’est sans doute toi qu’on attend pour compléter notre équipe en intégrant ce poste d’ Ingénieur.e Sécurité & Réseau ! 🚀 Ton challenge si tu l’acceptes : • Assurer le maintien en conditions opérationnelles et l’évolution des infrastructures réseaux, télécoms et sécurité dans un environnement critique multi-sites. • Intervenir sur les principales briques de sécurité et d’infrastructure : F5 Load Balancer, Palo Alto, Fortinet, Cisco ACI, Cisco IronPort et CyberArk/Conjur . • Assurer le support technique de niveau 3, accompagner les équipes projets et contribuer aux évolutions du système d’information et du schéma directeur. • Participer à la sécurisation des infrastructures via la gestion des flux, des accès, des certificats, des VPN et des équipements de sécurité du SI. • Contribuer à la documentation technique, à l’amélioration des procédures d’exploitation et aux chantiers de transformation Réseau & Sécurité. 👀 Tu as le profil idéal si : • Tu disposes d’au moins 7 ans d’expérience dans des environnements Réseau & Sécurité complexes, dont plusieurs années sur des missions orientées sécurité infrastructure. • Tu maîtrises les technologies F5, Palo Alto, Fortinet, Cisco ACI et possèdes une solide culture Réseau (BGP, OSPF, MPLS, VPN, Cisco, Juniper). • Tu es capable d’intervenir en autonomie sur des sujets critiques de RUN, BUILD et expertise technique. • Tu fais preuve de rigueur, d’un fort sens du service et sais communiquer efficacement avec des équipes techniques, métiers et projets. • Une certification Cisco CCNA ou Juniper constitue un véritable atout. 📍 Localisation : Gradignan 🏡 Rythme hybride : Jusqu’à 2 jours de télétravail par semaine ℹ️ Poste : CDI ou Freelance 💰 Rémunération : Il n’existe pas un salaire défini puisqu’il sera à définir ensemble selon ton expérience et tes compétences 🔥 Nos petits + 🤝 Interviens sur des environnements techniques et/ou fonctionnels variés. 💜 Échange et partage tes expériences avec une équipe passionnée. 💼 Met en avant tes ambitions professionnelles. 📈 Monte en compétences grâce à un plan de développement individualisé. 🥳 Élargis ton cercle social en participant à des afterworks avec tes supers collègues. 🌿 Rejoins une société qui grandit vite mais bien (découvre nos engagements). 🚀 +250 Aleysiens nous ont rencontré et ont décidé de nous rejoindre. 🔜 La suite des évènements : Première rencontre téléphonique Faisons plus ample connaissance lors d'un entretien Échange avec un de nos référents techniques sur tes compétences et son expérience chez nous Explore tes ambitions professionnelles avec la direction Engagés pour l’inclusion et la diversité, tous nos postes sont ouverts aux personnes en situation de handicap. Aleysia, l’ESN qui te donne les clés pour réussir 🚀 Ambition, Engagement et Proximité pour une expérience {IT} Minds Connected; Rejoins-nous, on attend plus que toi !

🧩 Contexte du poste Dans le cadre du renforcement de notre dispositif de sécurité applicative, nous recherchons un(e) Expert(e) en Sécurité Applicative pour accompagner les équipes de développement dans l’intégration des bonnes pratiques de sécurité tout au long du cycle de vie logiciel (Secure SDLC). Vous évoluerez dans un environnement technologique moderne et exigeant, au cœur de projets stratégiques intégrant des architectures web, cloud-native et des technologies innovantes incluant l’IA générative. 🎯 Missions principales Vous interviendrez en tant que référent(e) sécurité applicative et aurez pour responsabilités : Accompagner les équipes de développement dans l’intégration des bonnes pratiques de sécurité (Secure SDLC) Conseiller sur les choix d’architecture, l’évaluation des risques et la sécurisation des applications Définir, maintenir et faire évoluer les standards de développement sécurisé (incluant les enjeux liés à l’IA générative et aux LLM) Réaliser des audits de code, revues de sécurité, tests d’intrusion applicatifs et analyses d’architecture Mettre en place et automatiser les contrôles de sécurité dans les pipelines CI/CD (approche DevSecOps) Administrer et optimiser les outils de sécurité applicative (SAST, DAST, SCA) Accompagner les équipes dans l’analyse et la remédiation des vulnérabilités Participer au choix et à la sécurisation de nouvelles technologies (API Gateway, SSO, frameworks, authentification) Suivre les plans de remédiation issus des audits et pentests Sensibiliser et former les équipes techniques à la sécurité applicative Contribuer au développement d’applications (Java, PHP, Python, web moderne) 🧠 Compétences requises ⭐ Compétences obligatoires OWASP Top 10 : expert Java : confirmé ➕ Compétences appréciées PHP, Python, AngularJS, Node.js Spring, Quarkus API REST / SOAP Docker, Kubernetes CI/CD & DevSecOps Keycloak, OAuth2, OpenID Connect OWASP API Security / OWASP LLM Top 10 🛠️ Environnement technique Java, PHP, Python, AngularJS, Node.js, Spring, Quarkus, API REST, SOAP, Docker, Kubernetes, Keycloak, CI/CD, DevSecOps, SAST (Coverity), SCA (Black Duck), DAST (InsightAppSec), OWASP Top 10

Contexte Objectif global : Piloter le run de l'activité sécurité mail MISSIONS Assurer la bonne gestion du run de l'activité sécurité messagerie principalement autour de la gestion des incidents et des demandes. Les livrables sont Dashboard de suivi de l'activité run Procédure de traitement des principaux incidents rencontrés Compétences techniques Sécurité messagerie - Confirmé - Impératif Organisation de l'activité - Confirmé - Important Connaissances linguistiques Anglais Professionnel (Impératif)

Contexte Objectif global : Participer à la construction de la nouvelle plateforme IAM Groupe MISSIONS MOA aux projets IAM groupe Aide au cadrage du projet SIGMA Implémentation de l'outil IAM dans le contexte Groupe Compétences techniques MOA IAM - Confirmé - Important Chef de projet - Expert - Important Connaissances linguistiques Anglais Professionnel (Impératif) Définition du profil Mise en application de la Politique de Sécurité Contrôle de la Politique de Sécurité, notamment par des Contrôles Périodiques de Niveau 1 Valide et instruit les dérogations contrevenant à la Politique de Sécurité Maintien en Conditions Opérationnelles des Infrastructures de Sécurité (supervision, prise en charge et résolution des incidents/problèmes, installation et configuration) Participation aux audits (internes / externes) Mise en applications des recommandations d'audit et des demandes de remise en conformité Rédaction de guides et standards de sécurité Donne son avis pour l'implémentation des solutions de sécurité Proposition de solutions innovantes pour améliorer la sécurité, la qualité, les performances et les coûts d'exploitation Assure la veille technologique

Je cherche pour un de mes client un Responsable Projet MOE IT DORA (Sécurité / Conformité réglementaire) Nombre de postes : 1 Localisation : Au choix du prestataire : Toulouse, Paris ou Gradignan Nombre de jours de télétravail : Télétravail possible, avec accord du service Démarrage : Asap Description de la mission : Notre client recherche un Responsable Projet MOE IT DORA expérimenté et très bon communiquant pour accompagner le Programme de mise en conformité de la DSIBA vis-à-vis du nouveau règlement DORA (Digital Operational Resilience Act). Le programme DORA s'articule en 6 piliers structurants. Le profil aura pour mission de travailler sur le pilier Résilience, dont l'objectif est d'améliorer la résilience opérationnelle de l'entreprise à l'aide de 11 chantiers. Plus précisément, il devra : - Accompagner la Directrice de projets dans le pilotage du pilier (conformité, reporting, planning, budget, risque, traçabilité des décisions, suivi global des chantiers ouverts, alerting) - Piloter la mise en œuvre de 2 chantiers : le programme de tests de résilience et le chantier Sauvegarde & restauration Les activités principales incluent : établir le périmètre du projet, réaliser la note de cadrage, mettre en place les instances projet, construire et suivre le budget/planning/risques, identifier les adhérences entre projets, animer les équipes opérationnelles, arbitrer les divergences, réaliser les supports Copil/CVE/CODOM et gérer la documentation. Le candidat devra avoir réalisé des phases de cadrage de projet et avoir géré des budgets de 200k€ minimum.

IT Infrastructure Operation s 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.

Ingénieur senior en sécurité réseau (pare-feu, sécurité cloud et segmentation réseau) Senior Network Security Engineer (Firewall, Cloud Security & Network Segmentation)Position Overview We are looking for an experienced Senior Network Security Engineer to join a team responsible for securing and maintaining critical enterprise network infrastructures. This role focuses on firewall administration, network traffic filtering, security policy enforcement, incident management, and cloud network segmentation. The successful candidate will contribute to both operational activities and strategic security initiatives while ensuring compliance with security standards and regulatory requirements.Main Responsibilities Review, validate, and implement network access and firewall requests in accordance with security policies. Configure, maintain, and optimize firewall rules across complex enterprise environments. Investigate and resolve network security incidents, connectivity issues, and policy-related disruptions. Provide technical expertise and guidance for infrastructure, security, and transformation projects. Ensure security controls and firewall configurations remain aligned with organizational security standards and industry best practices. Maintain accurate documentation of security configurations, network flows, and operational procedures. Conduct detailed traffic-flow analysis and support audit, compliance, and recertification activities. Contribute to continuous improvement initiatives aimed at strengthening security posture and operational efficiency. Collaborate with cross-functional teams operating in Agile environments. Key Requirements Minimum 5 years of hands-on experience in network security and firewall administration. Strong experience implementing and managing firewall policies and access controls. Proven track record in troubleshooting and incident resolution within enterprise environments. Experience with leading firewall technologies such as Palo Alto Networks and/or Fortinet. Familiarity with IT Service Management platforms, including ServiceNow or equivalent solutions. Solid understanding of networking, security architecture, and enterprise infrastructure principles. Experience with reporting automation, scripting, or data analysis using Python, VBA, or similar tools. Nice to Have Firewall administration and policy optimization. Intrusion Detection and Prevention Systems (IDS/IPS). Cloud security and micro-segmentation technologies. Network security architecture and traffic-flow analysis. Incident, problem, and change management processes. Security compliance, governance, and audit support. Automation and reporting solutions. Other Details Participation in an on-call rotation may be required. Experience in large-scale, highly regulated, or mission-critical environments is considered an advantage.

IT Operation s Platforms 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. The role requires a proactive leader who can drive IT operational excellence, manage security risks, focus on continual service improvement, drive transformational delivery projects, and work effectively with internal stakeholders and third-party vendors to deliver a high-quality Global IT services. Working in line with the Architecture defined IT principle of a "buy before build" environment, the individual will need to ensure that outsourced and cloud-based services are robust, cost-effective, and aligned with business needs and the Strategic IT vision. They will also play a key role in enhancing cybersecurity, protecting data and systems, driving transformative operational change, enhancing IT processes and ensuring compliance with governance bodies and industry regulations. Due to the nature of the role, complexity 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: Global Enterprise level Infrastructure Management position for the last 5 years, Global team management (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, Migration of Legacy VM based estates to SaaS and Cloud services platforms, Legacy tech to Azure knowledge/experience, Prior to the last 5 years, a 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 - £100K plus Benefits. Do send your CV to us in Word format along with your salary and notice period.

At CGI, we partner with Defence clients to deliver critical data exploitation capabilities that strengthen national security and enable smarter, faster decision-making. As an Infrastructure Engineer, you will play a pivotal role in shaping and supporting secure, resilient platforms while guiding the migration of legacy services to MOD core cloud infrastructure. Working alongside senior client stakeholders, you will provide trusted technical insight, mitigate risk, and drive value across complex programmes. We empower you to take ownership of high-impact challenges, bring fresh thinking to complex problems, and collaborate within a supportive, expert-led environment where your contribution directly influences mission success. CGI was recognised in the Sunday Times Best Places to Work List 2025 and has been named a UK ‘Best Employer’ by the Financial Times. We offer a competitive salary, excellent pension, private healthcare, plus a share scheme (3.5% + 3.5% matching) which makes you a CGI Partner not just an employee. We are committed to inclusivity, building a genuinely diverse community of tech talent and inspiring everyone to pursue careers in our sector, including our Armed Forces, and are proud to hold a Gold Award in recognition of our support of the Armed Forces Corporate Covenant. Join us and you’ll be part of an open, friendly community of experts. We’ll train and support you in taking your career wherever you want it to go. Due to the secure nature of the programme, you will need to hold UK Security Clearance or be eligible to go through this clearance.

Elevate your potential with CGI, a global technology service provider and premier business consultancy recognized by Forbes Magazine as a top 100 employer. Our mission is rooted in evolution, excelling in intricate challenges. Collaborating directly with our clients, we employ innovative technologies to revolutionize, empower, safeguard, and deliver critical mission systems. The Space, Defence and Intelligence business unit in CGI is a true IT Systems Integrator. We work, build and operate bespoke, technically complex, mission-critical systems which help our clients keep us all safe and secure. We bring innovation to our clients using proven and emerging technologies, agile delivery processes and our deep expertise across the breadth of space, defence, intelligence, aerospace and maritime, all underpinned by our end-to-end cyber capability. We work collaboratively with global technology companies, cutting edge SMEs and academia to deliver the optimal solution for each client. CGI was recognised in the Sunday Times Best Places to Work List 2023 and has been named one of the ‘World’s Best Employers’ by Forbes magazine. We offer a competitive salary, excellent pension, private healthcare, plus a share scheme (3.5% + 3.5% matching) which makes you a member not just an employee. We are committed to inclusivity, building a genuinely diverse community of tech talent and inspiring everyone to pursue careers in our sector, including our Armed Forces, and are proud to hold a Gold Award in recognition of our support of the Armed Forces Corporate Covenant. Join us and you’ll be part of an open, friendly community of experts. We’ll train and support you in taking your career wherever you want it to go. We are looking for a Software Developers to come and join our Secure Innovation & Advisory area which sits within the Space, Defence and Intelligence business unit here at CGI. The successful Senior Engineer can either be based out of either Gloucester or Manchester offices.

The Space, Defence and Intelligence business unit in CGI is a true IT Systems Integrator. We work, build, and operate bespoke, technically complex, mission-critical systems which help our clients keep us all safe and secure. We bring innovation to our clients using proven and emerging technologies, agile delivery processes and our deep expertise across the breadth of space, defence, intelligence, aerospace and maritime, all underpinned by our end-to-end cyber capability. We work collaboratively with global technology companies, cutting edge SMEs and academia to deliver the optimal solution for each client. CGI was recognised in the Sunday Times Best Places to Work List 2025 and has been named a UK ‘Best Employer’ by the Financial Times. We offer a competitive salary, excellent pension, private healthcare, plus a share scheme (3.5% + 3.5% matching) which makes you a CGI Partner not just an employee. We are committed to inclusivity, building a genuinely diverse community of tech talent and inspiring everyone to pursue careers in our sector, including our Armed Forces, and are proud to hold a Gold Award in recognition of our support of the Armed Forces Corporate Covenant. Join us and you’ll be part of an open, friendly community of experts. We’ll train and support you in taking your career wherever you want it to go. Due to the secure nature of the programme, you will need to hold UK Security Clearance or be eligible to go through this clearance. This position will be based on site near Chippenham 5 days a week.

At CGI, we deliver secure, resilient infrastructure solutions that underpin critical national programmes. As an Infrastructure Engineer, you will take ownership of complex network, storage, and server environments that enable high-impact outcomes for our defence clients. We design and manage robust, secure architectures that drive operational excellence and long-term resilience. Joining CGI means shaping secure digital foundations, applying innovative thinking to complex challenges, and collaborating with trusted experts in a culture that values accountability, growth, and continuous improvement. CGI was recognised in the Sunday Times Best Places to Work List 2025 and has been named a UK ‘Best Employer’ by the Financial Times. We offer a competitive salary, excellent pension, private healthcare, plus a share scheme (3.5% + 3.5% matching) which makes you a CGI Partner not just an employee. We are committed to inclusivity, building a genuinely diverse community of tech talent and inspiring everyone to pursue careers in our sector, including our Armed Forces, and are proud to hold a Gold Award in recognition of our support of the Armed Forces Corporate Covenant. Join us and you’ll be part of an open, friendly community of experts. We’ll train and support you in taking your career wherever you want it to go. Due to the secure nature of the programme, you must hold Higher Level Clearance and be willing to undergo further clearance. This is a hybrid position based in Leatherhead, with 3–4 days per week onsite.