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At CGI, we build and operate mission-critical systems that help protect the UK, delivering secure, innovative solutions that make a tangible difference. As a Platform Engineer, you will play a key role in designing, automating and evolving cloud-native platforms that enable the rapid, reliable and secure delivery of services supporting national security programmes. Working alongside talented engineers in a collaborative environment, you will have the opportunity to influence platform strategy, drive continuous improvement and contribute to solutions that deliver real-world impact, while being supported in developing your skills and advancing your career. 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 is role will require you to work on a secure site.

At CGI, we deliver mission-critical solutions that shape the future of secure digital services, and as a Scrum Master you will play a pivotal role in driving high-performing Agile teams to achieve meaningful outcomes for our clients. We empower our professionals to take ownership of delivery, champion innovative ways of working, and collaborate closely with stakeholders to unlock measurable value. Joining us means contributing to forward-looking programmes that demand excellence, resilience, and creativity, while being supported by a community committed to your growth and 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. This is position predominately based on a secure site.

At CGI, we are shaping the future of defence technology through our role in one of the UK’s most significant ICT transformation programmes. As a Solution Architect, you will take a lead in designing and defining high-value solutions that directly contribute to mission success for the Defence client. You’ll play a central role in delivering complex, secure, and scalable ICT services that drive operational excellence, while being part of a collaborative team that values creativity, ownership, and innovation. This is your opportunity to help influence a multi-£100M programme, expand CGI’s footprint in Defence, and deliver lasting impact for our clients and the UK. 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 have frequent onsite commitments in Reading and Chippenham.

Objectifs Notre client recherche un Chef de Projet capable de l’accompagner dans la gestion des globale des projets du domaines et l'activité de reporting transverse. Celui-ci a engagé une dizaine de projets visant à améliorer la cybersécurité du programme groupe. La prestation de chef de projet a pour objectif faciliter le cadrage , découpage, lotissement , reporting des différents projets du domaine. Il s’appuiera sur les connaissances des experts sécurités en charge de la réalisation sous chantiers. Il réalisera une comitologie de suivi et de collecte de l'avancement des livrables . Il devra maintenir et suivre un planning des livraisons des différents reporting pour chaque comité. Il pourra seconder les managers dans les comités de suivis projets. Il sera garant de la tenue des délais ,des budgets, des échéances sur le reporting. Il consolidera tous les reportings des projets du service. Prestations Bonnes connaissances générale en cybersécurité : sécurité des développements, sécurité mobile, gouvernance des risques, intégration de la sécurité des projets , sécurité des apis, sécurité du cloud, sécurité post quantique, sécurité de l'IA Bonne capacité d'analyse et de synthèse - expériences réussies de pilotage de projets cybersécurité - bon relationnel - autonomie et force de proposition Outils confluence, JIRA, clarity

At CGI, we deliver mission-critical solutions that shape the future of secure digital services, and as a Scrum Master you will play a pivotal role in driving high-performing Agile teams to achieve meaningful outcomes for our clients. We empower our professionals to take ownership of delivery, champion innovative ways of working, and collaborate closely with stakeholders to unlock measurable value. Joining us means contributing to forward-looking programmes that demand excellence, resilience, and creativity, while being supported by a community committed to your growth and 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. This is position predominately based on a secure site.

At CGI, we build secure, mission-critical systems that help shape the future of the UK’s most important industries. As a DevOps Engineer, you’ll play a key role in delivering resilient, scalable, and high-performing infrastructure that enables innovation and operational excellence for our clients. Working within collaborative, cross-functional teams, you’ll have the opportunity to influence modern engineering practices, automate complex environments, and contribute to meaningful solutions with real-world impact. We empower our teams to take ownership, explore new ideas, and continuously develop their skills within a supportive environment where your contributions are recognised and your career can thrive. 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.

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 design, build, and operate secure, mission-critical systems that help protect the UK while enabling clients to innovate with confidence. As an Automation Tester, you will use your expertise to design and maintain automation frameworks that validate complex applications and services. Your work will directly improve speed, quality, and resilience in delivery, giving clients the ability to focus on their most pressing challenges. This role offers the opportunity to work in a highly rewarding environment where collaboration, ownership, and creativity are at the heart of everything we do. 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 is a hybrid position but will require regular onsite attendance in Gloucester for secure system access.

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 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. As a DevOps Engineer within the Space, Defence and Intelligence business unit, you will apply your technical expertise to the design, implementation, testing and ongoing support of CGI's tool chain. With strong skills in Terraform and Azure, you will be responsible for the automation of the software development lifecycle.

Notre client, un grand groupe bancaire français, recherche un(e) Référent(e) Vulnérabilités pour renforcer son équipe Conformité et Sécurité. Vous interviendrez sur un périmètre SI critique en assurant le suivi et les remédiations des vulnérabilités détectées. MISSIONS PRINCIPALES • Analyser les données collectées issues des scans de vulnérabilités • Maintenir et optimiser les outils de gestion des vulnérabilités du SI • Partager les résultats des scans avec les équipes de remédiation • Piloter les équipes en charge des remédiations • Suivre la planification et analyser les résultats des scans serveurs • Assurer le reporting lors des comités de sécurité • Préparer et animer les comités de sécurité

PROPULSE IT Recherche pour un de ses clients grands comptes : Un Architecte technique / Expert réseau sécurité Datacenter L'objectif est d'assister le client dans la conception, mise en œuvre et industrialisation Infra réseau et sécurité au sein des datacenters. L'intervenant doit obligatoirement avoir des compétences avancées en : ▪ Conception d'architecture réseau complexe en datacenter ▪ Déploiement de projet d'envergure en réseau et sécurité ▪ Etudes de faisabilité technique et financière (DAT et Chiffrage des propositions) ▪ Support N2 et N3 sur des infras critiques en production ▪ Maitrise technique avancée les technologies Cisco Nexus/VXLAN, firewall Fortinet, Checkpoint et Palo Alto, F5 LTM et APM, Proxy ZScaler Mission : Etude et analyse des opportunités d'évolution des infras Réseau & Sécurité Mise en œuvre de projets d'infras réseau & sécurité Support technique sur les technologies réseau & sécurité

🌟 Quel sera ton poste ? 🌟 💼 Poste : Ingénieur Réseaux et Sécurité H/F 📍Lieu : Nantes (44) 🏠 Télétravail : Flexible 📝Contrat : Portage ou CDI 👉 Contexte client : Tu rejoins un grand acteur du secteur des services opéré à très grande échelle, au cœur d’infrastructures critiques réseaux et télécoms. Les équipes interviennent sur la conception, la qualification et l’intégration d’architectures complexes permettant de garantir la performance, la sécurité et la résilience des systèmes d’information. Au sein d’un pôle stratégique mêlant architecture, ingénierie et exploitation, tu participeras à des projets structurants liés à l’évolution et au maintien en conditions opérationnelles des infrastructures réseau et sécurité. En tant qu’Ingénieur Réseaux et Sécurité, tu interviens principalement sur des activités de qualification, de maquettage et d’intégration en environnement de type opérateur. Tu auras pour missions de : Réaliser des qualifications d’équipements réseau (routeurs, switches, firewalls). Construire des maquettes conformes aux dossiers d’architecture. Installer, configurer et tester les équipements en conditions proches de la production. Valider le comportement des architectures en conditions nominales et en charge. Rédiger les documentations techniques (rapports de qualification, d’intégration). Assurer un support N3 auprès des équipes de production sur les périmètres validés. Intervenir ponctuellement en astreinte ou en horaires décalés sur des opérations programmées. Contribuer à la fiabilisation et à la standardisation des architectures réseaux. 🧰 Stack technique : Réseaux : MPLS, BGP (maîtrise impérative). Constructeurs : Juniper (routeurs & switches), Fortinet (firewalls). Protocoles : TCP/IP, SNMP, HTTP/HTTPS. Systèmes : Linux, Windows. Automatisation : scripting, Ansible (souhaité). Environnements : laboratoire de qualification, architectures complexes type opérateur télécom.

Détection et analyse des menaces Le prestataire devra notamment :  Identifier, analyser, qualifier et prioriser les alertes de sécurité détectées ;  Évaluer la criticité et l’impact potentiel des alertes sur le système d’information ;  Notifier les alertes de sécurité aux parties prenantes et assurer leur escalade si nécessaire ;  Mener des activités de recherche de compromission (Threat Hunting) afin d’identifier des comportements suspects non détectés automatiquement. Réaction et accompagnement face aux menaces Le prestataire assurera :  La transmission des plans d’action aux équipes responsables du traitement des alertes ;  Un support technique et méthodologique concernant les correctifs ou mesures de contournement à mettre en oeuvre ;  La formulation de recommandations sur les mesures immédiates à appliquer pour limiter les risques ;  L’accompagnement et le suivi du traitement des alertes jusqu’à leur résolution complète. Mise en place des cas d’usage et des outils Le prestataire assurera :  Le développement et le maintien des règles de détection d’événements de sécurité (SIEM, Trend Vision One, etc.) ;  Le maintien opérationnel des dispositifs de supervision Cyber

Contexte de la mission Dans le cadre de l'évolution d'une plateforme RH à destination de grands comptes et ETI, nous recherchons un Lead DevOps Cloud / Responsable Infrastructure afin de garantir la disponibilité, la performance et la sécurité des infrastructures tout en accompagnant les projets de transformation et d'automatisation. Le consultant interviendra au sein d'un environnement critique et participera notamment à une future migration vers le Cloud, en étroite collaboration avec les équipes de développement, d'exploitation, d'architecture et de sécurité. Missions principalesPilotage de l'infrastructure Garantir la disponibilité, la performance et la stabilité des infrastructures. Définir et suivre les KPI et SLA. Anticiper les évolutions techniques et les besoins de capacité. DevOps & Automatisation Concevoir et maintenir les scripts d'automatisation. Participer à l'industrialisation des processus d'administration. Mettre en œuvre les bonnes pratiques DevOps. CI/CD & Déploiements Piloter et optimiser les chaînes CI/CD. Coordonner les déploiements sur les environnements de développement, recette et production. Garantir la qualité et la réussite des mises en production. Cloud & Architecture Participer à la construction de nouveaux environnements Cloud. Accompagner les projets de migration et de modernisation de l'infrastructure. Contribuer aux choix d'architecture technique. Sécurité & Gouvernance Travailler en coordination avec les équipes sécurité. Participer aux audits et tests d'intrusion. Garantir la conformité des infrastructures aux exigences de sécurité. Projets transverses Piloter les chantiers d'amélioration continue. Participer aux projets PRA, réplication, optimisation et résilience des infrastructures. Assurer l'interface avec les équipes techniques et les partenaires externes.