Job details

Sustainable Buildings Consultant

Company details

Established in 1999, 3E is a technology company in sustainable energy. It provides consultancy and software to improve performance of renewable energy systems, to reduce energy consumption and to facilitate grid and market interaction. 3E’s expertise covers solar energy, wind energy, sustainable buildings and sites optimisation, power infrastructure and energy markets.

A fast-moving SME, 3E was awarded with the Gazelle trophy for its fast growth in 2011. It also received the Top Employer Award in 2012.


3E’s Buildings & Sites Team is looking for a consultant who is passionate about sustainable energy concepts for buildings and urban sites and has proven experience in consultancy and project management in the field of sustainable buildings.

Our clients include real estate developers, architects, building product manufacturers, energy utilities, maintenance companies, 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 technical and economical aspect of the energy concept and the broader sustainability approach.

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

As a technical consultant:

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

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


  • Architect-engineer or engineer or equivalent through experience
  • Minimum 2 years relevant experience in the areas of sustainable buildings or energy efficiency concepts.
  • Proven experience in a number of the mentioned fields of expertise (sustainability guidance on building and site level, EPB, PHPP, BREEAM, dynamic simulations, conceptual energy design


  • 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 offer and report writing
  • Technical, analytical and creative mind-set
  • Fluent in Dutch, French and English


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

  • Placed on:Tue 14 November 2017
  • Location: Brussels


Kalkkaai 6 Quai à la Chaux
1000 Brussels



For more information:
at the number: +32 (0)2 229 28 94
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