About the role
Fastned aims to accelerate the transition towards sustainable mobility by giving freedom to electric drivers. As a Senior Backend Engineer in the Operator team, you will help build and evolve the software that enables Fastned to operate one of Europe's most reliable fast-charging networks. The team owns Revolt Admin, Fastned's internal operations platform used by Customer Operations, Network Operations and Field Operations to manage and monitor stations, chargers, charging sessions, users and payments.
Responsibilities
•Designing, developing, testing and reviewing reusable, maintainable and scalable code for Fastned's charging platform and infrastructure
•Delivering core charging milestones: the migration from OCPP 1.6 to OCPP 2.x, Autocharge and Plug & Charge, and the shift to advanced maintenance using granular data and ML/AI modelling
•Working AI-first: using AI-augmented engineering (Claude Code, agentic workflows and AI tooling) as a natural part of how you design, build, test and review — with judgment for where AI is a multiplier and where humans stay in the loop
•Overseeing technical development from ideation to deployment, and taking operational responsibility for what you build (monitoring, alerting, incident analysis)
•Helping improve engineering methodologies and best practices, and mentoring others as a tech lead in the Charging team
Requirements
•A highly entrepreneurial mindset — "Think like a founder" — and ownership of the engineering that creates a best-in-class user experience
•7+ years of professional backend experience, with strong hands-on Kotlin and/or Java and experience operating microservices in production
•Experience with AWS or other cloud platforms, containerization/orchestration (Docker/Kubernetes) and relational databases (e.g. Postgres)
•Experience building microservices with RESTful web services, and comfort with event-driven architectures and tools like Kafka
•AI-first instincts: reaching for AI tooling as a natural part of your workflow, with good judgment about its strengths, limits and risks
•Great communication and coaching skills, and enjoyment of teamwork
•Proficiency in English is mandatory
•A strong affinity with the energy transition and Fastned's mission
Nice to have
•Tech-lead experience (strong plus)
•Hands-on OCPP (1.6 and/or 2.x)
•E-mobility, MSP/CPO models or standards such as OCPI
•High-throughput, real-time event-driven systems
•Mobile app backends (e.g. React Native)
•Building with LLMs/agents in production
Conditions & benefits
•Work-life balance, genuine work flexibility, and family-friendly policies
•Stock option plan — shared value creation
•Pension plan, fully covered by Fastned
•Training and development budget of €3,000 per year per employee
•Access to Fastned's fully electric vehicle fleet (all charging expenses covered), also for private use
•29 holidays, plus two mission days to contribute to Fastned's mission or a cause important to you
•Personalised coaching support before, during, and after parental leave, facilitated by Foundree
•Access to a broad range of women's health professionals via Flouria
•Daily lunches, snacks & drinks at office locations
•Fun events year-round, Christmas parties, and an annual trip abroad with all employees
•Flexible working hours, full travel compensation, and working gear of your choice
