Job details

Junior Data Engineer

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.
3E’s clients include renewable energy project developers and investors, real estate developers, energy utilities, architects, technology manufacturers, maintenance companies and public authorities.

The team
3E’s R&D department iLab works on the productization of R&D results in the domains of solar and wind energy. Our different products and services include among others, satellite-derived solar irradiation data, solar and wind power forecasting services, wind resource modelling, and artificial intelligence for the automatic fault detection on solar PV parks and wind farms.


You join a team of engineers, scientists, and product managers that develop, operate, and commercialize Data Services worldwide.
iLab is looking for a talented Data Engineer to support us on the design, development, implementation, testing, documentation, and operation of services for the renewable energy sector. This includes, among others, solar/wind power forecasting, wind resource modelling, solar/wind power plant data mining, etc.

The ideal candidate enjoys dealing with large volumes of data, complex workflows and data analytics.

You will also have the opportunity to display and further develop your skills in:
• Design, implementation, and deployment of scalable services in the cloud
• Modern development methods, such as agile development, CI/CD, micro services, containers, etc.
• Dealing with large multi-dimensional datasets


• A Master’s degree in Engineering, Computer Sciences, Mathematics, Statistics or equivalent
• 1-2 years of experience in applied Data Science, involving data engineering
• Strong programming skills in Python
• Affinity with Time Series
• Knowledge of solar/wind energy and/or energy storage is a plus
• Understanding of machine learning methods and associated software libraries (scikit-learn, pandas, numpy, scipy, PyTorch, Keras, Tensorflow, etc.) is a plus
• Knowledge of git and linux environments is an asset
• Research background but with a very pragmatic mindset
• Rigorous and pro-active
• Flexible and start-up mentality
• Fluent in English


3E offers a unique opportunity to further develop yourself
• … in a company/team with an ambitious growth plan, delivering innovative services
• … with the potential to grow into a leading role in the products’ further development and operation

In addition to a comfortable work environment and joining 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 40 countries worldwide, colleagues of 20 nationalities

  • Location: Brussels, Belgium


Kalkkaai 6 Quai à la Chaux
1000 Brussels



For more information:
at the number: 022292894
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