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ASSYSTEM

Engineering services for design, construction, commissioning

Nuclear Process Engineer - Fluid Systems/Safety

Thermal & Fluids EngineeringConfirmed live in the last 24 hours
Full-timeTours, France€36k - €50k /yrHybrid

About the Job

Requirements

  • A degree in engineering or a Master 2 in environmental science, hydraulics, chemistry, process engineering, or water and effluent treatment.
  • At least 8 years of experience, including knowledge of nuclear safety and external hazards.
  • Knowledge of technologies such as pumps, piping, valves, instrumentation, heat exchangers, and tanks.
  • Knowledge of calculations and modeling for fluid networks and equipment.
  • Knowledge of nuclear power plant operations and technical English.
  • Ability to adapt and understand needs, with rigor, curiosity, and good interpersonal skills.

Responsibilities

  • Design, optimize, and oversee systems for collecting, treating, and discharging industrial effluents while ensuring regulatory compliance and environmental performance.
  • Conduct engineering studies for new nuclear projects, including system design during preliminary design, detailed preliminary design, basic design, and detailed design phases.
  • Perform sizing studies and modeling of effluent collection systems and treatment units.
  • Contribute to the production and technical review of engineering documents, including calculation notes, technical specifications, and test specifications.
  • Analyze complex fluid phenomena and integrate nuclear safety requirements.
  • Conduct technical feasibility and design studies for fluid systems, implement modifications, and ensure their proper operation.
  • Supervise, train, and coordinate the calculation team.
  • Deploy new technical solutions.

Desired Qualifications

  • Knowledge of Flomaster and Epanet software.

About the Company

ASSYSTEM

Engineering services for design, construction, commissioning

Assystem provides engineering services for complex projects, covering design, construction, supervision, commissioning, and operation, with a strong focus on the nuclear and energy sectors. Its approach combines multidisciplinary engineering teams and project-management capabilities to move projects from initial concept through to operation. The company differentiates itself through a long track record, strategic acquisitions (including Alphatem in 1995 and Mactech Energy Group in 2025) and an early public offering in 2013, which have expanded its capabilities and market reach in the energy and nuclear fields. Its goal is to be a leading, reliable partner for clients by delivering end-to-end engineering services and helping them meet safety, performance, and regulatory requirements across the project lifecycle.

Company size
5,001-10,000
Company stage
IPO
Headquarters
Paris, France
Founded
1966

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