Senior Backend Engineer

About the role

Fastned is building a European network of fast‑charging stations for electric vehicles and needs a senior backend engineer to own the core charging platform. You will work in the Charging team, delivering high‑availability services that handle millions of OCPP messages daily and enable features such as Autocharge and Plug & Charge.

Key responsibilities

• Design, develop, test and review reusable, maintainable and scalable code for the charging platform.
• Deliver critical milestones: migration from OCPP 1.6 to 2.x, Autocharge, Plug & Charge, and AI‑driven maintenance.
• Apply AI‑augmented engineering tools (e.g., Claude Code) to improve design, testing and code review.
• Own the full lifecycle of services from ideation to production, including monitoring, alerting and incident analysis.
• Help evolve engineering best practices and mentor fellow engineers as a technical lead.

Required profile

• Entrepreneurial mindset – think like a founder and take ownership of your work.
• Strong communication skills to collaborate with backend engineers, an engineering manager and a product manager.
• Ability to set technical standards and act as a sparring partner for the team.

Required skills

• Kotlin
• Spring Boot (microservices)
• AWS
• Kubernetes
• Kafka
• SQL
• GitLab CI/CD
• REST APIs
• OCPP protocol (1.6 & 2.x)