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Senior Backend Developer

FLEXECHARGE Copenhagen, Denmark Publiceret 24. sep. 2026 Danish green-energy startups via The Hub verified public ATS · green-energy-engineering

Kort om jobbet

Pay: competitive. 🚀 We're looking for an ambitious, self-driven Senior Backend Developer to join our engineering team. You'll work primarily with TypeScript and AWS serverless technologies, with occasional work in our React/Next.js frontend.

A growing part of our platform is integrating with enterprise customers and external systems, so you'll design and own APIs and integrations that need to hold up under real-world use.

This is a high-impact role with end-to-end ownership, from requirements to a production-ready solution, and a chance to contribute meaningfully to the green transition. 🛠️ What You'll Be Doing - Taking features from design through implementation and into production - Building and operating event-driven, distributed systems - async processing, retries, failure handling, idempotency - Designing APIs and integrations for enterprise and external systems - stable contracts, versioning, auth, error handling, backwards compatibility - Working in and improving our existing codebase - refactoring, automated testing, managing technical debt - Occasional frontend work in React/TypeScript 🧠 Your Experience - 3 to 5+ years of professional software develo1 …

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