Job details

Junior Java Developer

Company details

3E is a consultancy service and software product company providing solutions to improve renewable energy system performance, optimise energy consumption and facilitate grid and market interaction. 3E focuses on guiding customers towards high standard economically optimised solutions in wind energy, solar energy, sustainable building and site optimisation, power infrastructure and energy markets.
3E works on projects in more than 30 countries and operates with an international team from its headquarters in Brussels and offices in Toulouse, Paris, New Dehli, Istanbul and Cape Town.
3E’s clients include renewable energy project developers and investors, energy utilities, technology manufacturers, maintenance companies, and regional and international public authorities.


SynaptiQ is 3E’s SAAS product, an independent, evolutionary software suite for asset management of renewable energy portfolios (more information on SynaptiQ collects near-real time data of more than 500k devices spread over 6000 utility scale and commercial solar and wind sites. The added value realized by SynaptiQ is performance improvement and operational cost reduction.

The job

3E is looking for a talented junior developer to join a multidisciplinary team of developers, scientists and engineers that implement, operate and commercialize SynaptiQ worldwide.
Your focus is on the implementation and testing of SynaptiQ’s high performance data load software that is responsible for ingesting the data from several hundred thousand devices in photovoltaic plants and the design of its new configuration tool. The programming languages involved are Java for the back-end and ReactJS for the front-end.
While programming represents an important part of the job, it is expected the candidate makes himself or herself available to support our client support team to help them troubleshoot data load or configuration issues in situations that require a deeper technical knowledge of the platform.
As you’ll grow more familiar with the product, and become an experienced developer, you will own the entire lifecycle of the platform, that is from the architecture and development of new features to its deployment and operation in production environment.


• Junior developer with Master degree in IT or IT engineering.
• Must have prior experience with C family programming languages like Java.
• Must feel comfortable working on the command line and Bash scripting in Linux environment.
• Knowledge in MySQL and JavaScript is a strong asset.
• Knowledge in HTTP and other networking protocols is a strong asset.
• Knowledge in REST and SOAP API is an asset.
• Team player with good communication and troubleshooting skills.
• Eager to learn, flexible on technologies and curious.
• Fluent in English.


Our Offer
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, company mobile phone and profit sharing scheme.
• Sustainable transport: easy access with public transport, 100% reimbursement of public transport fare, bicycle allowance.
• An international environment.

  • Location: Brussels (City Center)


Kalkkaai 6 Quai à la Chaux
1000 Brussels



For more information:
at the number: 022292894
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