Backend Engineer X2

Backend Engineer X2

Berlin

Germany

Contract

E-Commerce Platforms

1
Location: 100% Remote (Europe, CET +/-1)
Contract: Freelance - Initial 6 Months
Start: ASAP
We’re looking for a Senior Backend Engineer to join a greenfield platform build. You’ll play a key role in designing and delivering scalable backend services, working in a small, high-performing engineering team with a strong ownership mindset.

Responsibilities

• Design and build scalable backend services using NestJS and TypeScript
• Develop REST APIs and event-driven workflows
• Build payment-related integrations and backend processes
• Collaborate on architecture and contribute to technical decisions
• Leverage AI-assisted development to accelerate delivery

Requirements

• Strong TypeScript and NestJS experience
• Experience building scalable backend systems and REST APIs
• Payments or fintech experience (Stripe, Adyen, Braintree, etc.)
• Strong PostgreSQL knowledge and database optimisation
• Experience with event-driven systems or workflow/state machine design
• Daily use of AI coding tools (Claude, Cursor, Copilot, etc.)
• Strong ownership mindset and greenfield experience

Nice to Have

• Docker, AWS, Redis, BullMQ
• Experience with Auth0 or similar authentication platforms

If you’re interested, please apply with your updated CV, availability, and day rate.
Darwin Recruitment is acting as an Employment Business in relation to this vacancy.
Nelly Ngcobo
Back to search results