Job details

Sustainable Buildings Consultant

Company details

Established in 1999, 3E is an independent consultancy service and software product company providing solutions to improve renewable energy system performance, optimize energy consumption and facilitate grid and market interaction. 3E focuses on guiding customers towards high standard economically optimized solutions in wind energy, solar energy, sustainable building and site optimization, power infrastructure and energy markets.


3E’s Buildings & Sites Team is looking for a medior/senior consultant who is passionate about sustainable concepts for buildings and masterplanning.

Our clients include real estate developers, architects, building product manufacturers, energy utilities, and regional and international public authorities.

You join a team of multidisciplinary experts dedicated to providing high-quality consultancy from the design to operations phase, focussing on the energy concept and the broader sustainability approach.

You will be a consultant and will also take the role of project manager for dedicated large scale projects.

Your tasks as a Sustainability consultant can involve:

  • Provide assistance to our clients in the realisation of their ambitious sustainability concepts, from pre-design to post-commissioning
  • Design and provide technical-economic analysis of sustainable concepts and innovation strategies for buildings and urban districts
  • Perform or work in strong collaboration with the experts of the team for energy and comfort concept design studies and certification (EPB, thermodynamic simulations, PHPP, WELL…) for buildings & urban sites
  • Perform sustainability guidance & certification (e.g. BREEAM)
  • Execute strategy & policy projects for public authorities or private industry players
  • Deliver expert input studies eg dynamic simulations, CFD, LCA, ESCO, heat networks, energy & storage,…
  • Manage your ongoing projects in terms of resource and cost planning, execution and quality of content, while closely liaising with the client and the project team
  • Contribute to the sales process by identifying business opportunities, discussing potential scope with the client and work out a proposal, in agreement with your manager


  • Architect-engineer or engineer or equivalent through experience
  • Between 3 and 10 years relevant experience in the areas of sustainable buildings or energy efficiency concepts


  • Proven experience in at least one of the mentioned fields of expertise: EPB, sustainability guidance on building and site level, PHPP, BREEAM, dynamic simulations, conceptual energy design.
  • Team work
  • Strong organisational and time management capabilities; able to work under budget and time pressure
  • High sense of responsibility and professional attitude
  • Client-oriented and excellent communication skills, excellent writing skills for report writing
  • Technical, analytical and creative mind-set


  • Fluent in Dutch or French.
  • English (work language).


In addition to a stimulating atmosphere in a young and highly motivated group of people, 3E offers:

  • Attractive salary package in line with your level of experience, including group insurance, hospital insurance, meal vouchers, representation allowance and company mobile phone
  • Sustainable transport: Easy access with public transport, 100% reimbursement of public transport fare.
  • An international environment: projects in over 40 countries worldwide, colleagues of 20 nationalities

  • Location: Brussels


Kalkkaai 6 Quai à la Chaux
1000 Brussels



For more information:
at the number: 022292894
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