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Project Cost Estimator - Nuclear

Brussels - ENGIE Tower
Project Management
Master's Degree
Skilled (3 < Experience < 15 years)
Ref: BEL00000031


Engineer your positive impact

Tractebel is a global community of 5000 imaginative experts engineering a carbon-neutral future. Through our game-changing solutions for complex energy, urban, nuclear and water projects, we help our clients create a positive impact towards a sustainable world, where people, planet and profit collectively thrive. 


Work environment 

The Project Cost Estimator is part of the Project Support Office section, integrated in the « Operational Performance » department of the Global Business Area NUCLEAR. He/she is reporting directly to the PSO Manager.



Under the project manager supervision, you are responsible for the capital expenditures (CAPEX) cost estimation of certain projects in accordance with the internal guidelines, the specifications and the client’s requirements. Your role is to assess the project cost based on standard cost estimation methods and the maturity level of project definition and its deliverables. You interact with the project team and according to the needs with client and  with (potential) suppliers and subcontractors to develop the estimation.

  • Preparation of a CAPEX cost estimation of projects in accordance with the applicable guidelines of the company and the recommendations of the standard Cost Estimate Classification System of the Association for the Advancement of Cost Engineering (AACE).
  • Consultation of the teams of the involved Competence Centres (CC) to get cost data for each technical discipline involved in the project estimation.
  • Verification and validation of the cost estimation with all technical stakeholders to consolidate quantities and costs.
  • Comparison of cost estimates against historical data and/or independent cost estimates.
  • Assessment of contingencies by using Monte-Carlo simulation (ex: @Risk).
  • Reporting to and discussion of cost estimate progress with the project manager
  • Writing of an estimate plan and estimate report
  • Answering client’s questions and providing additional information when requested.
  • Sharing of internal cost estimation guidelines with the project teams.
  • Developing cost estimate best practices, data base and estimation tools.
  • Keeping records, files, and project data in a company database


What we offer

Every day with Tractebel is your chance to make the world more resilient, livable, energised and ultimately more sustainable. To shape and enhance the lives of millions of people. To apply your talent in multidisciplinary teams with boundless creativity. To learn and grow with world-class experts at your side. To leave a game-changing engineering legacy you can be proud of in your community and communities around the world.

sustainable and social impact

Accelerate the transition to a carbon-neutral future for people and the planet we all share.

imaginative expertise

Work alongside experts who imaginatively challenge convention in the search for solutions.

caring community

Join a community where you’re genuinely valued and appreciated with leaders who champion you to success.

grow as we grow

Benefit from continuous opportunities for learning and professional growth within ENGIE group.

Anicet, nuclear engineer, tells us about his positive impact. ​

Let’s meet Anicet, one of our imaginative experts who makes the world more resilient, livable, energized and ultimately more sustainable.

What we need



  • Master of Science or Master in Industrial Sciences 

  • Five years of relevant experience in cost estimation

  • Pro -active collaboration and effective communication with colleagues, clients and all project stakeholders.

  • Able to work autonomously within a set frame and on a full process (need for an helicopter view)

  • Able to make suggestions for cost estimation process optimization


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


Find your path to positive impact in the sector that’s right for you.

Project Cost Estimator - Nuclear