Back-end engineer F/H

Veolia; Colombelles; Sur place; EUR 40 000 - 60 000; Plein temps

Résumé du poste

A leading energy tech company in France is seeking a Back-end engineer to join their R&D team. The role involves backend development, improving team workflows, and supporting project management. Candidates should be proficient in Java and Spring Boot, and possess strong communication and mentoring skills. This position offers an opportunity to work with cutting-edge technologies in a fast-paced environment.

Qualifications

• Fluent in English and French or Dutch, trilingual being a strong plus.
• Proficient in java development: Expertise in building robust and scalable backend solutions using Java.
• Understanding of scalable, maintainable architecture principles.
• Familiarity with advanced architectural patterns to design modular and decoupled systems.

Responsabilités

• Contribute to all stages of the backend development lifecycle.
• Actively participate in initiatives to enhance team workflows and coding standards.
• Collaborate with the team lead to assist in project management tasks.

Connaissances

Java development

Spring Boot

Fluent in English and French or Dutch

Communication skills

Project management expertise

Mentoring and coaching

Adaptability

Outils

Spring Boot

Kotlin

Description du poste

Company Description

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 resourceful Back-end engineer 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.

Historically, heat-intensive industries have relied on natural gas to produce steam and hot water. As these sectors move toward decarbonisation, they must adopt alternative methods for generating industrial heat. We believe Power-to-Heat technologies—such as electric boilers (eboilers), heat pumps, and thermal storage—will be essential in driving this transition.

Job Description

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.

Qualifications

• Fluent in English and French or Dutch, trilingual being a strong plus
• Proficient in java development: Expertise in building robust and scalable back‑end solutions using Java.
• Nice to Have - Kotlin: Knowledge of Kotlin for versatile and modern back‑end development.
• Software architecture: Understanding of scalable, maintainable architecture principles.
• Domain‑driven design (DDD) & hexagonal architecture: Familiarity with advanced architectural patterns to design modular and decoupled systems.
• Spring boot framework: Strong experience in developing microservices with Spring Boot.
• Strong communication skills: Effectively convey complex technical concepts to both technical and non-technical stakeholders, fostering collaboration and understanding across teams.
• Mentoring and coaching: Guide and support junior engineers, sharing knowledge and best practices to help them grow and succeed within the team.
• Project management expertise: Organise and prioritise tasks, coordinate cross‑functional efforts, and ensure timely delivery of back‑end solutions that align with project goals.
• A positive, pragmatic and professional attitude
• Comfortable in a fast changing work environment, you can easily adapt

Additional Information

As an inclusive company, Veolia is committed to diversity and gives equal consideration to all applications, without discrimination.