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

Permanent employee, Full-time · Berlin

Your mission
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
Your profile
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
Why us?
**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*
About us

Founded in 2022, Holocene came out of a simple but frustrating pattern: enterprise systems were either too rigid to adapt or too light to scale. Planners, buyers, and supply chain leads were stuck between workarounds and chaos — with no platform designed to handle the way real decisions happen.

We believed there had to be a better way: one that could connect strategy to execution, planning to action, and people to outcomes — without ripping out what teams already use.

Today, Holocene helps businesses around the world reduce friction, fix misalignment, and make smarter supply chain decisions with less effort. Our product evolves with the market — because it was designed to.

We’re here to make complex problems easier to manage, not more complicated to understand. That’s our philosophy. That’s the product.


We are looking forward to hearing from you!
Thank you for your interest in Holocene GmbH. Please fill out the following short form. Should you have difficulties with the upload of your data, please send an email to recruitment@holocene.eu
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