Senior Backend Architect — AWS/TypeScript (On-site Copenhagen)

Flexecharge GmbH; København; On-site; DKK 800,000 - 1,000,000; Full time

Job summary

Flexecharge GmbH is seeking a Senior Backend Developer to join our engineering team in Copenhagen. You will primarily work with TypeScript and AWS serverless technologies, with occasional frontend work in React/Next.js.

You will design and own APIs and integrations with enterprise systems, ensuring reliability under real-world use. The role involves end-to-end ownership from requirements to production-ready solutions, contributing to green energy initiatives and handling production systems with

Qualifications

• 3 to 5+ years of professional software development with TypeScript/Node.js.
• Hands-on AWS serverless or event-driven architectures experience.
• Experience with NoSQL data modelling and production data systems.

Responsibilities

• Take features from design through implementation to production.
• Build and operate event-driven distributed systems with async processing and idempotency.
• Design APIs and integrations for enterprise and external systems.
• Improve existing codebase via refactoring, testing, and reducing technical debt.
• Occasional frontend work in React/TypeScript.

Skills

TypeScript/Node.js

AWS serverless

APIs & integrations

React/Next.js (frontend)

Git & CI/CD

Tools

AWS Lambda

DynamoDB

Queues & event buses

API services

Infrastructure as code (IaC)

Job description

Flexecharge GmbH is seeking a Senior Backend Developer to join our engineering team in Copenhagen. You will primarily work with TypeScript and AWS serverless technologies, with occasional frontend work in React/Next.js.

You will design and own APIs and integrations with enterprise systems, ensuring reliability under real-world use. The role involves end-to-end ownership from requirements to production-ready solutions, contributing to green energy initiatives and handling production systems with