To complete its team, WattElse is currently looking for a Energy Engineer. 

Company’s vision:

WattElse wishes to promote the low carbon energy transition by supporting private and public professionals in:

  • energy strategy
  • industrial project management in renewable energy

Company’s mission:

WattElse offers multidisciplinary expertise to develop and implement energy transition projects with companies and the public sector. Its global approach includes:

  • Energy strategy of entities and territories
  • Analyzing and improving energy Efficiency of buildings and industrial sites
  • Proposing and managing alternative energy production industrial projects

Company’s values:

Innovation: Technological and regulatory watch leading to concrete and adequate solutions for our customers and their environment

Commitment: Everyone’s investment with conviction and passion for the challenges of sustainable development

Teamwork: Healthy relationships, creativity and cutting-edge expertise in order to offer relevant solutions that make sense in the long term

Quality which translates into :

  • Leveraging our experience and know-how
  • The professionalism of our approach: expertise, confidentiality, responsiveness, thoroughness and attentiveness
  • The popularization of the information transmitted
  • The desire to establish long-term relationships

Your mission:

As an Energy Engineer, you work on technical projects/missions, develop techno-economic analyzes for our clients and you contribute to the commercial development of the company while respecting its values.

Your job includes the following tasks:

  • Energy audit/quickscan of tertiary and/or industrial buildings, technical feasibility analysis of recommended measures and identification of alternatives, presentation of results;
  • Realization of energy monitoring campaigns in tertiary and industrial buildings: analysis of consumption, detection of drifts, improvement proposals;
  • Technical and economic feasibility study of energy projects (building insulation, production of heat and renewable electricity): sizing of installations, energy consumption analysis, comparison with a business as usual model, identification of technical and economic opportunities, presentation of results ;
  • EPB certification for public buildings: visit of public buildings subject to the certification obligation and data encoding;
  • Optimization study of heating installations for tertiary and industrial buildings: initial diagnosis, identification of improvement opportunities (system, regulation), renovation scenarios, calculations of energy and CO2 savings;
  • Technical visits to buildings for private and public customers;
  • Writing of reports and presentations;
  • Participation in technical conferences.

Your profile:

We are looking for a person motivated by energy and environmental challenges with a real attraction for technical elements, an open and constructive attitude as well as good learning and integration skills.

  • Specialist-type profile by experience or by diploma such as (for example) Scientific and Technical Baccalaureate or Master in Civil, Industrial, Commercial, Agronomical Engineer
  • Professional experience of at least 2 years in a technical function related to the renewable energy sector and/or energy transition
  • Comfortable in the field and expert in (at least) one area of ​​energy transition
  • Good knowledge of building techniques (HVAC, DHW & PV)
  • Perfect command of French both orally and in writing, academic knowledge or a professional mastery of English and/or Dutch being additional assets
  • Mastery of traditional IT tools (Office, etc.) and, if possible, programming tools
  • Ability to work globally on different projects taking into account technical aspects but also financial and communication issues
  • Analytical mind and affinity with numbers
  • Structured and popularized approach
  • Initiative and autonomy

Our offer:

  • Indefinite employment contract as a full-time employee
  • You benefit from environment conducive to learning and discussion
  • You join a multidisciplinary, creative, motivated and results-oriented team and benefit from operational support from management as well as the administrative department


About 50% of time worked at our office located in Achêne (15 minutes from Namur) + 50% of teleworking and/or travelling to customers

How to apply?

Send your CV and your motivation letter written in French to