Extia

About the Company

At Extia, IT consulting company, it's "First who, then what!"

1st Great Place To Work® France 2024 and Great Place To Work® Europe for the 7th consecutive year, we are convinced that well-being at work generates performance.

For 17 years, we have been working in many sectors: Digital, Finance, Telecoms, Health, Energy, Transport, etc. by supporting our customers in all phases of their technical assistance or fixed-price projects, in an agile way.

We believe that the success of our clients' projects depends on the professional and personal fulfillment of our employees, which is why we put people at the heart of our concerns. #Collaboration

Now, it is more than 2 500 Extians working in 25 agencies in France and abroad. You can find us in France (Paris, Lille, Nantes, Rennes, Orléans, Tours, Lyon, Aix-en-Provence, Bordeaux, Toulouse, Toulon, Sophia-Antipolis, Grenoble, Montpellier, La Rochelle, Strasbourg, Rouen), but also in Belgium (Brussels), Switzerland (Lausanne), Romania (Bucharest), Spain (Barcelona, Madrid), Portugal (Lisbon), Canada (Montreal) and Italy (Milan).

To be an Extian means evolving in an environment based on transparency, collaboration, intrapreneurship, continuous improvement and the pleasure of working together. #PositiveExperience

We are convinced that we must give our employees a positive experience! How about starting your own now?

Extia is recruiting join the adventure!
Discover our job offers & much more on extia-group.com/fr-en.

Listed Jobs

Company Name

Extia

Job Title

Ingénieur Système junior H/F

Job Description

Job title: Junior Systems Engineer (F/M) Role Summary: Provide support and maintenance for client IT environments, including installation of hardware and software, evolution of physical/virtual architectures, and Level‑3 support, while ensuring system security and documentation. Expectations: Collaborate within project teams, deliver high‑quality solutions, maintain accurate documentation, enforce security best practices, and continuously improve automation processes. Key Responsibilities: - Install and maintain IT equipment and software for client projects. - Design, integrate, and evolve physical or virtual system architectures in project mode. - Deliver Level‑3 technical support for production systems. - Automate administration tasks using scripting (Shell, Bash, Python, Perl) and configuration tools (Ansible). - Author technical documentation (architectural diagrams, operating procedures, security policies). - Safeguard information confidentiality, manage access controls, and deploy protection mechanisms on Unix/Linux platforms. Required Skills: - Proficient with Unix/Linux (AIX, Red Hat, Debian) and at least one application server (Jboss, Apache, Tomcat, Weblogic). - Experience with VMware virtualization. - Basic knowledge of Windows/Active Directory, backup/NetApp storage, and scripting languages. - Strong security awareness and interest in IT security. - Excellent oral and written English. Required Education & Certifications: - Bachelor‑Level plus: Master’s degree (BAC+5) in Computer Science, Information Technology, or a related field. - Minimum of 2 years of relevant experience in Linux system administration or system engineering (alternatives included). ---

Rouen, France

On site

Junior

30-10-2025

Company Name

Extia

Job Title

Ingénieur Cybersécurité (H/F)

Job Description

**Job Title:** Cybersecurity Engineer (H/F) **Role Summary:** Cybersecurity Engineer working directly on a client site will analyze security requirements, develop and implement security strategies, manage crises, enforce security standards, oversee budgeting and procurement for the security team, and conduct penetration tests. **Expectations:** - Demonstrates rigorous analytical thinking and investigative mindset. - Consistently seeks improvement, learns from every challenge. - Communicates effectively with stakeholders and team members. **Key Responsibilities:** - Understand and challenge client security needs, proposing tailored solutions. - Contribute to the information security posture of the client organization. - Manage IT security incidents and perform post‑incident reviews. - Define, implement, and evolve the client’s information security strategy. - Validate and specify organizational and technical security standards for projects. - Assist the Chief Security Officer in budgeting, procurement, and security team planning. - Deploy and configure security equipment and tools across the organization. - Draft technical specifications, requirements documents, and specifications. - Conduct penetration tests and report findings. **Required Skills:** - Strong knowledge of information security concepts, frameworks, and best practices. - Experience with security architecture, risk assessment, and incident response. - Ability to write clear technical specifications and security documentation. - Proficiency in planning, budgeting, and procurement for security initiatives. - Hands‑on experience with penetration testing tools and methodologies. - Excellent communication, analytical, and problem‑solving skills. **Required Education & Certifications:** - Bachelor’s or Master’s degree in Computer Science, Information Security, or related field. - Professional certifications preferred: CISSP, CISM, CEH, ISO/IEC 27001 Lead Implementer, or equivalent.

Strasbourg, France

On site

30-10-2025

Company Name

Extia

Job Title

Business Analyst

Job Description

**Job title:** Business Analyst **Role Summary:** Analyze and translate business requirements into functional and technical specifications, coordinate testing activities, execute SQL queries, and act as the primary liaison between technical and business teams. Facilitate project steering meetings and ensure delivered solutions meet business expectations before production. **Expectations:** - Excellent communication and synthesis skills in French and English. - Strong written and verbal presentation abilities. - Proactive feedback orientation and continuous learning mindset. **Key Responsibilities:** - Gather, document, and validate business requirements. - Draft functional and technical specifications. - Design test strategies and write test scenarios. - Perform SQL queries for data validation and reporting. - Execute functional and regression tests, documenting results. - Validate final deliverables and approve production rollout. - Serve as the main interface between development, architecture, integration, and business stakeholders. - Lead steering and project update meetings (COPIL/COPROJ) in French and/or English. **Required Skills:** - Business analysis and requirement elicitation. - Technical writing and documentation. - SQL querying and data analysis. - Functional testing and test case creation. - Bilingual communication (French/English). - Stakeholder management and teamwork. - Meeting facilitation and workshop moderation. - Knowledge of software development lifecycle. **Required Education & Certifications:** - Bachelor’s or Master’s degree in Information Systems, Computer Science, Business Administration, or related field. - Relevant certifications (CBAP, PMI‑PBA, or equivalent) preferred.

Paris, France

On site

31-10-2025

Company Name

Extia

Job Title

Ingénieur Mainframe (H/F)

Job Description

**Job Title:** Mainframe Engineer (M/F) **Role Summary:** Responsible for the full lifecycle of mainframe platforms within the infrastructure team, including design, build, operation, and continuous improvement. Ensures reliable, secure, and performant mainframe environments supporting business projects. **Expactations:** - Autonomous decision‑maker with confidence in delivering solutions. - Highly rigorous; pays attention to detail. - Committed to best practices and maintaining a solid, efficient operating framework. **Key Responsibilities:** - Participate in the design and evolution of mainframe infrastructure solutions. - Install, configure, and validate environments for project deployments. - Operate and maintain platforms in production (Run) to ensure availability and performance. - Provide ongoing support and drive continuous improvement initiatives. - Collaborate with cross‑functional teams to align infrastructure with business needs. **Required Skills:** - Strong knowledge of mainframe operating systems (e.g., z/OS) and related technologies. - Experience with mainframe hardware, storage, and networking concepts. - Proficiency in scripting/automation (e.g., JCL, REXX, Python) for deployment and monitoring. - Familiarity with ITIL/ITSM processes for incident, problem, and change management. - Ability to troubleshoot complex technical issues and implement corrective actions. - Excellent communication and teamwork skills in an international environment. **Required Education & Certifications:** - Bachelor’s degree in Computer Science, Information Systems, or related engineering field (or equivalent professional experience). - Preferred certifications: IBM Certified System Administrator – z/OS, ITIL Foundation, or comparable mainframe credentials.

Dijon, France

On site

10-11-2025