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Senior Engineer Fuel & Neutronics

ENGIE
Belgiumfull_timeVerifiedPosted 4 Sept 2025

About the role

<p><em>Ready to engineer your positive impact? Then join Tractebel, part of the ENGIE Group, and our 5,600 passionate experts around the globe, driven by shaping a more sustainable world every day. It’s your chance to be a part of the adventure of the century: accelerating the energy transition – while enhancing people’s lives through meaningful projects. Make your contribution to carbon neutrality in markets like nuclear, renewables, power &amp; gas, electrical grids, hydropower &amp; dams, water resources &amp; supply, desalination, complex &amp; high-tech buildings, transport infrastructures, and ports &amp; waterways. </em><br/><em> </em><br/><em>Are you ready to make a difference? Then we look forward to meeting you! </em><br/> <br/><strong><span>What we offer </span></strong><br/> </p> <ul> <li>Tractebel is more than a place to work. It’s your chance to evolve alongside top experts on impactful projects around the world. It’s an environment built on team spirit, where you can reach your highest potential. </li> <li>We actively supports the development of our people, and the opportunities for growth within the ENGIE Group are wide open. </li> <li>We offer a competitive salary package  including representation allowances, double paid holidays, meal vouchers, eco cheques, bonuses, health insurance, PC purchase plan, ENGIE stock options, and more. </li> <li>Our mobility plans are customizable to your needs, including a company car, train pass, bike lease, or combinations thereof. You can also swap your company car for the flexible and tax-friendly Belgian Mobility Budget! ** </li> <li>Flexible, hybrid arrangements enable working from home (2-3 days per week), on-site or on the go. Tractebel participates in your home office expenses, through advantageous purchase programs and generous contributions to your internet and mobile plans. </li> <li>Holidays: 20 legal days + 12 compensatory leave days (for a full-time work schedule). You can also buy 5 extra days for even more relaxation.</li> <li>To celebrate our successes, and just have fun, we get together for team sports, afterworks, team -building activities, our annual party, and more</li> </ul> <p><span><strong>Your mission</strong></span></p> <p>As Senior Engineer Fuel &amp; Neutronics in our Safety department you will contribute to our mission everyday by playing a crucial role in supporting our clients. <br/>The "Core and Fuel Studies" Group within the “Nuclear Processes" Competence Centre is in charge of the Tractebel activities related to the fuel cycle, core design, fuel safety evaluation and core exploitation support for nuclear reactors for the Belgian Utility. <br/>The group is subdivided into three operational subgroups, each one under the responsibility of a sub-group leader :</p> <ol> <li>Cycles Studies, incorporating Cycle Studies activities</li> <li>Neutronic studies &amp; Tools: incorporating all activities related to Criticality, Shielding, Activation, Residual Heat</li> <li>Core Multiphysics, Methods &amp; Support</li> </ol> <p> </p> <p><strong><span>Your key responsibilities   </span></strong><br/> <br/>In the Core and Fuel group, you will be in charge of core and fuel physics studies and associated developments in the domains of Fuel and/or neutronics activities and/or core Multiphysics.<br/>The main tasks in these areas are:</p> <ul> <li>Engineering studies in the domain of core and fuel physics using industry-standard methods and simulation tools;</li> <li>Provide expertise and participate to the developments of core and fuel activities in the field of fuel behaviour and/or core neutronics and/or thermal-hydraulics, including multiphysics approaches;</li> <li>Ensure technical coordination across various areas of expertises and participate in drafting call for tenders;</li> <li>Provide training on various areas of expertise;</li> <li>Regularly report to the Group Manager on all aspects of the relevant domain.</li> </ul> <p><span><strong>We would love to hear from people with  </strong></span><br/>      </p> <ul> <li>You are a civil or industrial engineer, specialized in nuclear energy, physics or electromechanics, or B.Sc. in physics. </li> <li>You have experience of 5-10 years in the  nuclear fuel and core physics</li> <li>You are interested in widening your technical competences across various disciplines of core physics</li> <li>Expertise in SMR, Gen 4 reactors, fast reactors is an asset</li> </ul> <p> <br/><span><strong>Who you are</strong></span>   <br/> </p> <ul> <li>You speak English and French or Dutch with a good practice of the other language.</li> <li>You apply self-verification with a rigorous mind and you deliver quality within tight schedules</li> <li>You are good listener, dynamic and you like teamworking.</li> </ul> <p><span><strong>Who we are  </strong></span></p> <p>Our top priorities are people, ethics, safety, and sustainability. With Tractebel, you are uniquely positioned to make a positive impact on global net-zero

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ENGIE

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