Job Opening: Operations Manager (Work-Study Program) (M/F) – Work-Study Program in Bouches-du-Rhône (13)

Onet Technologies is a recognized player in engineering, maintenance and on-site operations for the nuclear industry. We offer our customers end-to-end solutions, from engineering studies and plant operation to manufacturing and on-site deployment. We are 3,000 enthusiasts who have been tackling the challenges of nuclear energy for over 40 years. Onet Technologies is part of the Onet Group, an engineering and services group.

Within the Reactor Engineering and Services Division, we are hiring work-study students to strengthen our teams:

An Operations Manager

You will help carry out various projects from both a technical and contractual perspective. You will learn to manage budgets and schedules and oversee personnel and equipment.

You will be responsible for the following tasks:

Provide technical and organizational support to ensure that the service schedule is followed
Participate in the financial and contractual monitoring of services
Attend and/or lead technical meetings
Report on the physical progress of deliverables
Drawing up REX sheets
Help prepare work sites and equipment
Ensure compliance with applicable guidelines, procedures, and standards
Prepare post-project reports

Based in the 9th arrondissement of Marseille, you should expect to travel regularly for several weeks at a time to nuclear power plants throughout France.

Your assets

You’re looking to grow in a demanding environment and tackle technical and interpersonal challenges. You’re self-motivated and responsible, and you enjoy working in the field.

You are pursuing a master’s degree (typically from a general engineering school with a focus on mechanical engineering), ideally with some initial hands-on experience (through internships or work-study programs) in a technical and industrial setting.

Internship & Work-Study Program Campaign 2026

Work-Study Programs at Onet Technologies…
-A real stepping stone in your career
-Tailored support to help you develop your skills and build your career path
-From a vocational high school diploma to a master’s degree, we give you the chance to experience the real world while continuing your academic studies 

 
Join the nuclear industry and help create a low-carbon energy future that meets tomorrow’s energy needs and addresses climate challenges!

This position may be subject to an administrative investigation. Onet has a long-standing commitment to diversity and disability. Onet recruits and recognizes all talents.

Our business

Onet, a French family-owned group founded in 1860, is an international player in engineering and services. Its more than 70,000 employees work every day to help create ever healthier, safer and more reliable environments.

More about Onet

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