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Back-End Engineer H/F - 14

Description du poste

  • Flexcity

  • Colombelles - 14

  • CDI

  • Publié le 22 Octobre 2025

Are you passionate about energy, sustainability, and technology, with a drive to create impactful backend solutions?

Flexcity, a leading European energy tech company within the Veolia Group is looking for a Back-end engineer F/H to join our French team.

This position offers the opportunity to join the Flexcity R&D team in France, alongside a team of skilled colleagues from different backgrounds, within the company headquarters in Brussels.

At Flexcity, Tech is not a support function - it is a key business driver. We operate in a complex, real-time, and highly regulated environment, requiring robust, secure, and adaptable systems to manage the increasing volatility of energy markets.As a Back-end engineer you will focus on this emerging market, where Flexcity France aims to be a market leader. You will work on control and optimization algorithms used in our Smart Grid services. You will contribute to design discussions and implement new features aligned with user needs.

As a member of Flexcity's R&D team, you will gain hands-on experience in developing production-grade applications in the energy sector within a modern agile development team. You will work with cutting-edge and innovative technologies used by Flexcity, such as the Internet of Things, big data, and cloud-native development.

You will be part of our tech team, under the Country Manager, and your role is divided in:

- Backend Development - 80%

- Contribute to all stages of the backend development lifecycle, including design, development, testing, deployment, monitoring, and providing support for production systems.
- Team Improvement - 10%

- Actively participate in initiatives to enhance team workflows, coding standards, and overall efficiency to foster a culture of continuous improvement.
- Project Management Support - 10%

- Collaborate with the team lead to assist in project management tasks, ensuring timely delivery of features and alignment with project goals.

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