Requisition ID:  22644


Tractebel is a global engineering and consulting company delivering integrated solutions for sustainable energy and built environment projects. Our expertise is trusted worldwide across multiple markets like nuclear, renewables, power & gas, electrical grids, hydropower & dams, water resources & supply, desalination, complex & high-tech buildings, transport infrastructures, and ports & waterways. By connecting strategy, design, engineering, social & environmental studies, project management and in-house digital applications, we partner with companies and public authorities to create a positive impact on people and planet. Backed by more than 150 years of experience, today Tractebel is a community of over 5,500 passionate experts across the globe, committed to ethical business and the fight against climate change. Tractebel is part of the ENGIE Group, a global reference in low-carbon energy and services.

Thanks to a strong increase in business activity, we are currently recruiting a fulltime Nuclear Engineer Radiological Characterization for a permanent position in our Brussels HQ, Namur, Hasselt or Ghent office (partial homework possible).




Nuclear Engineer -  Radiological Characterization






The ‘RP, Radwaste and Decommissioning’ Competence Centre, which is part of the DECOM Department, is responsible for all Engineering aspects in the field of:

  • Radiation Protection;
  • Radiation Monitoring;
  • Radiological Characterization;
  • Radioactive Waste Management (both waste from operational and from dismantling activities);
  • Decommissioning Concepts (Dismantling Tools & Techniques, Conceptual Design Studies, …).


The team ‘Radiological Characterization’ is in charge of all activities related to :

  • the radiological characterization of building, structure and equipment in a nuclear installation through measurements and sampling campaigns;
  • the final radiological characterization of operational and dismantling waste (packages) produced during operation, post-operation and dismantling phases of a nuclear installation. This including, among others, the set up of strategies/methodologies for the characterization processes, the selection and procurement of measurement systems to characterize radioactive and (un)conditional release waste (packages), the definition of scaling factors/activities for different waste streams.


These activities are carried out for Electrabel as well as for other national and international Clients. It provides high-level engineering and consultancy services. The team interacts with the other teams of the Competence Centre (CC), with the other CC’s and the other Products of the Business Entity  Belgium Nuclear. Its members work in close relationship with the final Client and interact with the Safety Authorities and the radioactive Waste Management Agencies.







As ‘Nuclear Engineer Radiological Characterization’, you are responsible for the sound roll-out of all the projects, tasks and responsibilities entrusted to you. In close collaboration with your colleagues and your team lead, you contribute to the preparation of bids, the Engineering Studies and the projects in the field of Radiological Characterization.


Your responsibilities are:


•       - conducting radiological characterization studies according to the needs and the expertise level expected by the dedicated authorities;

•       - developing and applying strong capabilities with computer codes such as MicroShield, MCNP or RayXpert but also in-house Python calculation codes;

•       - writing technical specifications and follow-up of orders for the procurement of measurement systems and radiological campaigns;

•       - developing a strong expertise in the field of the radiological characterization based on national and international references;

•       -  share your knowledge and experience with Clients and colleagues to ensure alignment concerning the work to be realized and setting the right expectations;

•       - maintaining the knowledge, expertise and methodologies required to accomplish your missions;

•       - delivering ‘quality on time’: in order to achieve this objective, you will get all support required in terms of technical training, coaching and availability of (IT) resources;

•       - verifying work performed by your colleagues guarantying the expected high quality level;

•       - correctly applying the Integrated Management System (IMS) procedures;

•      -  providing regular feedback concerning ongoing activities to your team lead and your hierarchy, while working autonomously towards the goals defined for you;

•     -  identifying and implementing possible synergies with other teams and/or comptetence Centers;

•       -  contributing to the preparation of technical bids;

•      - providing (internal) presentations and trainings;

•      -  participating actively to regular meetings with your colleagues during which workload, technical issues, project follow-up, development strategy and transversal activity coordination are discussed.


You will collaborate actively with your colleagues from Project Management and Competence Centre departments, and build a close relationship while working for the same goal, actively developing cross department projects for your Clients.


You embody the image and values of Tractebel and the Engie group (Ethics, QHSE,…) in all your contacts, both inside and outside the ENGIE group, and other external stakeholders.





  • You have the drive to become a technical expert in this field;
  • You have a master’s degree or PhD in engineering or sciences, preferably in physics, with a strong technical background and a will to further develop your technical expertise;
  • You are fluent in French or Dutch and in English;
  • You can draw up reports in French or Dutch and in English;
  • You have experience (at least 5 years) in the nuclear industry, with expertise in data processing and analysis or Contract Owner;
  • You are flexible and creative in finding technical solutions;
  • You ar autonomous and you like teamwork
  • You are open to gain new competencies as well as to share them;
  • You are at ease with IT-tools and familiar with the MS-Office software suite, the knowledge of Python is considered as an advantage





•       The possibility to carry out a complex job full of challenges autonomously, with the right attention to work/life balance as part of our Employee Value Proposition.

•       An attractive compensation package with fringe benefits;

A permanent contract to ensure the roles offered are in accordance with your skills, interests, career goals and lifestyle.


Tractebel welcomes candidates from all backgrounds, and actively promotes Diversity in the workforce.





Business Unit:  GBU Energy Solutions
Division:  ES Tractebel L2
Contract Type:  Permanent
Job Type:  Full - Time
Professional Experience:  Skilled ( >3 experience <15 years)
Education Level:  Master's Degree