Assystem is an international company with one mission: accelerate the energy transition around the world.
Every day, our 6,500 switchers located in 12 countries (Europe, Middle East, Pacific Asia & Africa) connect their six thousand billion neurons to tackle the task of the century: switching to low-carbon energy.
We are a collective committed to the actors who are making the energy switch. Sharing our knowledge, expertise and values allows us to innovate and think differently about the energy transition.
Drawing on more than 55 years' experience in highly regulated sectors subject to strict security and safety requirements, we provide our customers with engineering and project management services, as well as digital services and solutions to optimize the performance of complex infrastructure projects throughout their life cycle. The Group is currently ranked second in the world for nuclear engineering.
To ensure a viable, efficient, and reliable energy future for all
Key Responsibilities:
Design, develop, and implement system integrations (APIs, middleware, data interfaces)
Analyze business and technical requirements to define integration solutions
Configure and manage integration platforms and tools
Monitor and troubleshoot integration performance issues
Ensure data accuracy, security, and compliance with organizational standards
Collaborate with IT, digital, and business teams to support system enhancements
Maintain technical documentation for integrations and workflows
Support testing, deployment, and post-implementation activities
Bachelor’s degree in Computer Science, Information Technology, Engineering, or related field
Proven experience in system integration, APIs, or middleware platforms
Strong understanding of data formats (JSON, XML), web services, REST/SOAP
Experience with integration tools (e.g., MuleSoft, SAP PI/PO, Oracle Integration, etc.)
Knowledge of databases and SQL
Strong analytical and problem-solving skills
Good communication skills in English
We are committed to equal treatment of candidates and promote, as well as foster all forms of diversity within our company. We believe that bringing together people with different backgrounds and perspectives is essential for creating innovative and impactful solutions. Skills, talent, and our people’s ability to dare are the only things that matter !. Bring your unique contributions and help us shape the future.
Assystem, one of the world's leading independent nuclear engineering companies, is committed to accelerating the energy transition. We see ourselves as an activist in the development of nuclear energy, convinced that it is an essential part of the fight against climate change.
8,000 switchers, spread in 13 countries in Europe, Asia, Africa and the Middle East are working every day to make the energy switch by accelerating the development of nuclear and renewable energies, power grids, clean hydrogen projects and low-carbon transport.
We design and supervise major projects through our engineering activities and accelerate our customers' digital transformation. We also develop new solutions to build faster and improve the performance of complex infrastructures.
59 years of experience have made Assystem a key partner of the world's largest industrial groups: CEA, EDF, ENEC, Enedis, Engie, Framatome, ITER, K.A. CARE, Naval Group, NICDC, Orano, RATP, Rolls Royce, Royal Commission, Sellafield, SNCF...
Assystem is ranked in the Top 3 companies in the nuclear energy sector.
