FIXING THE PLANET BY MAKING HOMES CARBON-FREE!
As a Senior Backend Engineer, you’ll design and build the systems that power our platform — from customer-facing experiences to the data pipelines that drive automation, insights, and decision-making.
You’ll work closely with product, design, frontend, and data teams to deliver reliable, scalable systems with real-world impact.]]> Deine Aufgaben

Design, build, and maintain scalable, production-ready backend services

Work across our platform — from customer-facing flows to internal systems and data pipelines

Write and extend services primarily in Golang, TypeScript, and Python

Drive architectural decisions, especially around our data core and automation pipelines

Build and improve systems that transform customer data into actionable insights

Ensure high code quality through testing, code reviews, and clean architecture

Improve system reliability via CI/CD, monitoring, and alerting

Collaborate closely with product and stakeholders to translate business needs into robust technical solutions

Identify opportunities for product and operational improvements based on data and system insights

]]> Dein Profil

5+ years of experience building backend systems in production environments

Strong proficiency in Golang and solid experience with TypeScript and/or Python

Experience designing and operating distributed systems and microservices architectures

Strong understanding of event-driven systems (e.g. Kafka, NATS JetStream)

Experience with cloud infrastructure (AWS or GCP)

Hands-on experience with Docker and Kubernetes

Familiarity with CI/CD tools (e.g. GitHub Actions, CircleCI, Terraform)

Experience with databases such as PostgreSQL, DynamoDB, MongoDB, or Cassandra

Strong understanding of API design (REST, GraphQL)

Comfortable contributing to frontend or user-facing components when needed to deliver end-to-end solutions

Experience with monitoring and observability (e.g. Prometheus, Grafana, ELK)

Solid understanding of performance optimization, caching, and database efficiency

Experience with authentication/authorization (e.g. OAuth, FirebaseAuth)

You write well-tested code and are comfortable with unit and end-to-end testing

Full working proficiency in English (German is a plus)

]]> Benefits

Become part of one of Europe's fastest growing Climate Tech Startups - funded by Europe's best known VC's

Attractive & competitive compensation

Work with top talent in a dynamic environment

Individual benefits: learning budget, Urban Sports Clubs membership, job ticket or daycare allowance

Office with a direct view of the Spree River, with everything your heart desires

Numerous team events, including yoga

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Senior Backend Engineer (m/w/d)