Job details

Senior Sustainable Buildings Consultant

Company details

3E is an independent technology and consulting company in renewable energy and energy efficiency. The company offers expert technical guidance and due diligence services for project developers, utilities and financial institutions. Additionally, it offers a suite of software services that enhance the performance of renewable energy plants, facilitate the implementation of smart grids and assess the energy efficiency improvements in buildings. 3E has also a track record in advising corporate and public authorities on sustainable energy technology, policy and markets.

Its clients include renewable energy project developers, energy utilities, architectural offices, suppliers in the construction markets, maintenance companies, financial institutions and regional and international public authorities .


3E’s Buildings & Sites Team is looking for a senior consultant who is passionate about sustainable concepts for buildings and masterplanning and has proven experience in project management.

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.

As a project manager, you manage your projects from A to Z:

  • You 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
  • You 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

As a sustainability consultant:

  • You provide assistance to our clients in the realisation of their ambitious sustainability concepts, from pre-design to post-commissioning
  • You design and provide technical-economic analysis of sustainable concepts and innovation strategies for buildings and urban districts
  • You perform energy and comfort concept design studies and certification (EPB, thermodynamic simulations, PHPP, WELL…) for buildings & urban sites
  • You perform sustainability guidance & certification (e.g. BREEAM)
  • You execute strategy & policy projects for public authorities or private industry players
  • You deliver expert input studies eg dynamic simulations, CFD, LCA, ESCO, heat networks, energy & storage,…


  • Architect-engineer, engineer or equivalent through experience
  • Between 5 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 English and mother tongue at least French or Dutch


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.

Our offices are located near St Catherine in 1000, Brussels (City Centre) with excellent public transportation connections.

  • Location: Brussels centre


Kalkkaai 6 Quai à la Chaux
1000 Brussels



For more information:
at the number: +32 (0)2 229 17 31
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