OPEN

About the Company

Bienvenue sur la Page LinkedIn d'Open ! Plus de 1200 nouveaux collaborateurs en 2025 ! #1200byOpen Avec 4000 collaborateurs et un chiffre d’affaires de 420 M€ en 2024, Open se positionne comme le partenaire de confiance, l'industriel de l'innovation qui accompagne les grands acteurs privés et publics dans leur transformation IT & Digitale, afin d’accroitre leur compétitivité. Open opère principalement en France et à l’international au Luxembourg et Roumanie. Comment ? En apportant une proposition de valeur centrée sur la modernisation des écosystèmes applicatifs et des infrastructures, l'intégration de plateformes technologiques, le déploiement de nos solutions SaaS et la mise en œuvre de l’Intelligence Artificielle au cœur de la dynamique d’innovation, pour créer de nouveaux leviers de performance et d’anticipation. Open inscrit sa raison d’être dans une logique d’avenir « Faire du numérique le vecteur de transformation d'un monde plus humain et durable » en cohérence avec ses valeurs d’entreprise : Agilité, Responsabilité, Engagement. #WeAREOpen

Listed Jobs

Company Name

OPEN

Job Title

Ingénieur DevOps H/F

Job Description

Job title: DevOps Engineer Role Summary: Lead the integration of development and operations practices to reduce silos, automate delivery pipelines, ensure security compliance, and maintain high system availability across multiple client projects. Expactations: - Provide DevOps transformation guidance to stakeholders. - Design, implement, and optimize CI/CD pipelines and automation workflows. - Develop and maintain scripts and tooling for continuous integration and delivery. - Enforce security standards and monitor system health. - Ensure operational readiness through defined maintenance processes. - Train and support users in adopting DevOps practices. - Document tools, processes, and best practices. Key Responsibilities: - Advise on DevOps strategy and adoption across projects. - Collect user requirements, adapt processes and tools, and deliver solutions. - Develop automation scripts (Ansible, Terraform, Puppet). - Implement CI/CD pipelines using GitLab, Jenkins, or Azure DevOps. - Provision and manage cloud resources on AWS, GCP, and Azure. - Deploy and orchestrate containers with Docker and Kubernetes. - Manage virtualized environments with VMware. - Integrate monitoring with Datadog (bonus). - Enforce security policies and perform vulnerability assessments. - Define and execute maintenance procedures to maintain uptime. - Facilitate user onboarding and continuous training. - Produce and maintain documentation of tools, processes, and configurations. Required Skills: - CI/CD: GitLab, Jenkins, Azure DevOps - Automation: Ansible, Terraform, Puppet - Containerization: Docker, Kubernetes - Cloud Platforms: AWS, GCP, Azure - Virtualization: VMware - Monitoring/Observability: Datadog (optional) - Strong scripting (Bash, Python, PowerShell) - Collaboration, problem‑solving, and communication Required Education & Certifications: - Bachelor’s degree or equivalent in Computer Science, Information Technology, or related field. - Professional certifications in cloud or DevOps (e.g., AWS Certified DevOps Engineer, Azure DevOps Engineer Expert, Certified Kubernetes Administrator, or similar) preferred.

Lille, France

Hybrid

Junior

25-11-2025

Company Name

OPEN

Job Title

Service Delivery Manager confirmé H/F

Job Description

Job Title Senior Service Delivery Manager (M/F) Role Summary Lead the functional management of client service contracts (MCO/Run/Managed Services) for a national production center. Ensure delivery quality, compliance with SLAs, and continuous improvement while acting as the main client interface and reporting to the Project Director. Expectations - Proven experience in a similar service‑delivery or Run/Maintenance role. - Solid background in Infrastructure, Cloud, and Information Security. - Deep understanding of Managed Services, ITIL processes, and client relationship management. Key Responsibilities 1. Project Leadership • Deploy project governance tools, monitor deviations, and control the client backlog. • Coordinate team activities to meet contractual objectives. 2. Client Relationship & SLA Management • Define, document, and track SLAs and KPI metrics. • Prepare and facilitate steering committees, submit minutes, and ensure contractual scope alignment. 3. Performance & Risk Management • Analyze risks, productivity, and cost performance. • Contribute to business development and account growth. 4. Human Resources & Talent Management • Communicate with the team, maintain the skills matrix, and support resource planning. Required Skills - Autonomy, rigor, and structured methodology. - Strong analytical and synthesis capabilities. - Crisis and escalation management. - Excellent organizational and time‑management skills. - Effective written and verbal communication; stakeholder service orientation. - Team‑player mindset. Required Education & Certifications - Bachelor’s degree or equivalent in Information Technology, Computer Science, or related field. - Relevant certifications such as ITIL (Foundation or higher), ISO 27001, and/or security certifications (e.g., CISSP) are highly desirable.

Tours, France

Hybrid

26-11-2025

Company Name

OPEN

Job Title

Concepteur Développeur Java confirmé H/F

Job Description

Job title: Senior Java Developer (H/F) Role Summary: Contribute to high‑impact web projects within a collaborative squad. Design, implement, test, and maintain Java applications, leveraging modern frameworks and DevOps practices. Expectations: • Deliver high‑quality code in an agile environment. • Communicate effectively with developers, QA, product owners, and business analysts. • Participate in code reviews, knowledge sharing, and continuous improvement. • Adapt to evolving technologies and maintain best practices. Key Responsibilities: • Design and develop Java applications using Java 11+ and Spring Boot. • Build, containerize, and deploy services with Docker and Jenkins CI/CD pipelines. • Work with PostgreSQL databases, writing efficient queries and managing schema migrations. • Implement automated unit, integration, and functional tests. • Collaborate within Scrum/Agile squads to meet sprint goals and deliver incremental value. • Troubleshoot, debug, and optimize application performance. • Contribute to technical documentation and architecture discussions. Required Skills: • Proficient in Java (Java 11+) and the Spring ecosystem (Spring Boot, Spring MVC, Spring Data). • Experience with version control (Git) and CI/CD tools (Jenkins, GitLab CI, etc.). • Hands‑on with Docker, container orchestration basics. • Solid knowledge of relational databases, particularly PostgreSQL. • Familiarity with automated testing frameworks (JUnit, Mockito, Selenium or equivalent). • Understanding of Agile methodologies (Scrum, Kanban). • Strong problem‑solving skills and a collaborative mindset. • Excellent written and verbal communication in English. Required Education & Certifications: • Bachelor’s or Master’s degree in Computer Science, Software Engineering, or related field. • Professional certifications beneficial: Oracle Certified Professional – Java SE 11 Programmer, or equivalent Spring certifications.

Nantes sud, France

Hybrid

27-11-2025

Company Name

OPEN

Job Title

Ingénieur Système et réseaux H/F

Job Description

Job Title: Systems and Network Engineer Role Summary: Ensure the availability, performance, and security of Linux/RedHat infrastructure and applications. Lead design, maintenance, and automation of systems and network components while managing incident resolution and security remediations. Expectations: - Deliver and sustain level 2/3 maintenance (MCO) for assigned services. - Automate deployment, configuration, and operational tasks using Ansible and Bash/Python scripts. - Apply security best practices, remediate vulnerabilities, and manage firewall policies. - Coordinate technical projects end‑to‑end and liaise with external vendors and stakeholders. Key Responsibilities: - Design and implement Linux/RedHat server and network architectures, including virtualization. - Maintain infrastructure operating levels, perform health checks, and conduct incident investigations. - Automate deployments and routine operations (Ansible playbooks, Bash/Python scripts). - Participate in impact analyses, technology selection, and solution design. - Execute security remediations, firewall configuration (Palo Alto, Stormshield), and compliance activities. - Manage hybrid cloud environments (Azure, AWS) and integrate them with on‑prem systems. - Coordinate with service providers and internal teams to deliver projects on time and within budget. Required Skills: - Proficient in Linux/RedHat administration and system architecture. - Experience with virtualization, networking, and cloud technologies (Azure, AWS). - Strong automation skills using Ansible, Bash, and Python. - Knowledge of security practices, firewalling, and regulatory standards. - Project management, coordination, and communication abilities. Required Education & Certifications: - Master’s degree (Bac +5) in Computer Science, Information Technology, or equivalent professional experience. - Minimum 5 years as a systems and network engineer. ---

Strasbourg, France

Hybrid

04-12-2025