Backend Engineer (m/w/d) – Python / Kundenportal & Ökosystem Wärmepumpe
Core
Backend Engineer building and maintaining the customer portal and ecosystem integrations for heat pump customers.
Role type
Senior Backend Engineer (Full Stack)
Builds
Customer portal, backend services, and third-party system integrations for heat pump energy solutions.
Domain
CleanTech / Energy / SaaS
Deliverable
production ML models | product features
Required skills
Python, FastAPI, REST API design, OAuth 2.0, JWT, Webhooks, React, Next.js, TypeScript, PostgreSQL, Docker, AWS, GitHub Actions, AI-assisted development
Preferred skills
Salesforce (SOQL, Apex), Observability, Infrastructure as Code, LLM tooling
Technologies
Python, FastAPI, Next.js, React, TypeScript, Tailwind CSS, Salesforce, PostgreSQL, Docker, GitHub, GitHub Actions, AWS, Vercel, Hetzner, Okta
Responsibilities
Develop and maintain the customer portal for heat pump users; Build and operate independent backend services and APIs; Integrate new systems and replace legacy third-party systems; Work on Salesforce connectivity integrations.
Seniority
Senior, hands-on IC