Job details

Business Administrator

Company details

Established in 1999, 3E is an independent technology and consulting company active in the renewable energy sector. The company offers expert resource assessment, technical advisory and owner’s engineering services, covering the whole project lifecycle. 3E also has a track record in advising corporate and public authorities on policy and markets. 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 combines in-house innovation, partnerships with leading R&D centers, and a thorough understanding of practical industry needs to continuously offer high performance, cost-effective energy services and products.

3E expertise covers different technologies including:

  • Solar: PV & thermal power
  • Wind power: on & offshore
  • Storage
  • Technical grids, mini- and microgrids
  • Hybrid systems

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

3E’s international team operates from Brussels (HQ), London, Paris, Toulouse, Istanbul, Delhi and Cape Town and has a project track-record of 20 years in over 50 countries.


You will operate within 3E’s consultancy unit and will act as link from the consultancy unit to the sales team and internal services.

You will be assisting the experts, team and unit managers in managing and structuring the different administrative tasks, streamline the business analysis and assist the financial department with financial reporting activities.

In this role, you:

  • Lead the invoicing process of the consultancy unit including invoice and cash planning,
  • Follow-up on contract signature and client payments which will require recurrent Client contact
  • Steer the pricing consultancy services to continuously optimize the price setting strategies
  • Support the project managers and sales team during the proposal writing of tender documents
  • Take part in the market analysis, competitive analysis and service and market analysis.


• Master degree in Economics or related fields
• Experience in renewable energy sector is an asset
• Analytical mindset
• Proactive and independent worker
• Team player with good communication skills
• Fluent in English. Dutch, French or any other languages are a definite plus


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
  • A flexible work environment: flexible working hours, telework, flex desk policy, etc.
  • An international environment: projects in over 50 countries worldwide, colleagues of 20 nationalities

Our offices are located in the city centre of Brussels, near Sainte-Catherine.

  • Location: Brussels


Kalkkaai 6 Quai à la Chaux
1000 Brussels



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