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Nuclear manufacturing engineer (nuclear pressure equipment [ESPN])

Grenoble

The company

The ILL is an international research facility at the forefront of neutron science and technology. Its High-Flux Nuclear Reactor delivers the world’s most intense neutron beams to a suite of over 40 scientific instruments. Every year, some 1800 international researchers visit the ILL to carry out cutting-edge experiments across a range of scientific disciplines, driving innovation in the fields of health, energy, the environment and quantum materials. The ILL is also involved in the production of radioisotopes for medical applications. The ILL employs over 500 staff from 25 different countries, in a diversity of careers and a multicultural and inclusive environment.

The Reactor Division is responsible for the safe, reliable, and efficient operation of ILL’s high flux reactor. It oversees reactor operations, fuel management, maintenance, engineering, radiation protection, and technical support. The RDe employs around 100 people, mostly reactor operators and maintenance technicians and nuclear engineers, as well as safety, radiation protection and operations support staff.

About the position

The Mechanical Engineering Service is part of the ILL’s Reactor Division and is responsible for the maintenance of high-flux reactor equipment. In the context of the manufacture of spare components (primarily beam tubes) for the reactor block, you will report directly to the Head of Service. You will work under the supervision of a senior ILL engineer, who is in charge of mechanical manufacturing projects and is the Institute’s expert on nuclear pressure equipment (referred to as ESPN - Equipements Sous Pression Nucléaires).
Your tasks
You will be responsible for monitoring several manufacturing projects and will be required to:
•    Draft the manufacturing specifications (based on existing templates)
•    Check the component drawings produced by the design office
•    Produce the technical documentation for calls for tender and select manufacturers 
•    Compile the manufacturing documentation necessary for conformity assessment by the relevant approved certified body 
•    Monitor the various manufacturing stages: procurement, machining, inspection, validation, deviation analyses, etc.) 
•    Validate the final acceptance of equipment
•    Update the internal regulatory documents relating to the reactor 

For this position, you must be able to assume a high level of autonomy in the short term. The position may eventually involve managing small-scale reactor modification projects that are manageable over a three-year period.

Desired profile

•    Level 7 qualification (Master’s degree or equivalent) specialising in mechanical engineering or metallurgy
•    At least 5 years’ professional experience
•    Knowledge of metalworking and welding (GMAW/MIG, GTAW/TIG or electron beam), ideally on the aluminium alloy Ag3Net, stainless steel or zircaloy  
•    Experience in manufacturing within a nuclear quality assurance framework 
•    Knowledge of the regulations governing nuclear pressure equipment (ESPN) and of design and construction codes of the type RCC-MRx (or RCC-M) for mechanical reactor components  
•    Experience in monitoring technical projects (design, manufacture and installation) 
•    Excellent writing skills (procedures, technical specifications)
•    Excellent interpersonal skills allowing you to work comfortably with several different stakeholders (workshop staff, suppliers, inspection bodies)
•    Fluency in French is essential.

Application requirements

Required document(s)

Curriculum VitaeCover letter

Position characteristics

ℹ️ Offer info

Published on 10/05/2026

Published until: 11/01/2026

Permanent contractFull timeExperience requiredLicense not requiredMaster degree levelReference 26/46

💰 Gross salary

To be defined according to profile

📅 Start date

As soon as possible

🎯 Benefits

Quality of life – This position is based in Grenoble, a hub for research and technology, ideally located in the heart of the French Alps (just 3 hours from Paris/Provence by train, 1 hour from Lyon international airport and 1 ½ hours from Geneva). It is important for us that our staff achieve a healthy work-life balance. We therefore offer home working (under certain conditions), generous annual paid leave entitlement and a host of other benefits that you will discover when you arrive! Prospects - We guarantee you a secure permanent position based in Grenoble in a multicultural scientific environment. Benefits - We offer generous social benefits (expatriation allowance, excellent health cover), moving and relocation assistance (under certain conditions) and an annual productivity bonus. We also offer language courses for you and your partner and subsidies for the use of public transport and the staff canteen, as well as for holidays and a variety of cultural and sports activities. For more details, visit https://www.ill.eu/careers/working-at-the-ill/employment-conditions Please note that all applicants are subject to administrative screening (background checks). For this post, medical fitness (including for work under ionising radiation) is required. We are committed to equal opportunities and diversity and therefore welcome applications from all suitably qualified candidates INDILL