Backend Engineer – (Nest.js / Node.js) - Berlin Based

We are looking for engineers based in Berlin 

This is a product-heavy, high-collaboration role working closely with the founder, product design, and ML. Timezone alignment is non-negotiable.

 **What You'll Do*** 

• Build and maintain robust backend features and APIs using **Nest.js** and **TypeScript**
• Collaborate with product and engineering leads to implement scalable backend services
• Write unit and integration tests, improve test coverage, and support automation best practices
• Contribute to API documentation, schema design, and cross-service contracts
• Own features end-to-end—from design and implementation to deployment and monitoring
• Participate in code reviews, pair programming, and team knowledge sharing
• 
  

**Tech Stack You'll Work With*** 

• Backend: Nest.js, Node.js, TypeScript, PostgreSQL, Prisma, Redis* 
• Frontend: Next.js * 
• Infrastructure: AWS (EBS, ElastiCache, S3), Docker* 
• Tools:** GitHub, Postman, LLM APIs

What We're Looking For

• Build and maintain production-grade backend features and APIs using Nest.js and TypeScript
• Work closely with the founder and product/design to shape solutions — not just implement tickets
• Own features end-to-end: design → implementation → deployment → monitoring
• Design APIs, schemas, and service contracts with scalability in mind
• Write unit and integration tests; improve test coverage and automation
• Participate in code reviews, pairing, and technical discussions that influence product direction

This is not a handoff-based role. You will influence how things are built, not just what is assigned.

What We’re Looking For

• 4–6 years of backend experience with Node.js / Nest.js
• Proven experience building and scaling real-world APIs in production
• Startup or fast-paced product team experience (ambiguity doesn’t scare you)
• Strong fundamentals in PostgreSQL, REST APIs, and backend architecture
• Ability to reason about product tradeoffs, not just technical ones
• Writes clean, modular, well-tested code
• Comfortable working independently and in tight collaboration
• Builder mindset — you care about shipping the right thing, not just closing tickets

Nice to Have

• Experience with message queues (Kafka, SNS/SQS)
• Background in SaaS, logistics, or real-time systems
• Familiarity with Prisma, WebSockets, event-driven patterns
• Exposure to LLM-powered services or AI integrations

Tech Stack

• Backend: Nest.js, Node.js, TypeScript, PostgreSQL, Prisma, Redis
• Frontend: Next.js
• Infrastructure: AWS (EBS, ElastiCache, S3), Docker
• Tools: GitHub, Postman, LLM APIs

Why This Role

• High ownership: You’ll build backend systems that directly impact customers
• Product influence: Work close to decision-making, not layers away
• Small, senior team: No bureaucracy, no ticket factory
• Fast decisions: 2 interviews, decision within 48 hours

**Impact:** You'll work on high-ownership backend features that directly impact our customers* *
*Growth:** Learn from a deeply technical and experienced teammates* 
**Culture:** Flat, collaborative team where your voice is heard and experimentation is encouraged*