Backend Engineer – Python, AI, Greenfield – Berlin Hybrid – €80,000

Backend Engineer – Python, AI, Greenfield – Berlin Hybrid – €80,000

Join one of Europe’s fastest-growing ClimateTech companies and help build the backend systems powering the future of home energy.

This is a rare opportunity to join a brand-new engineering team where you’ll help shape products, integrations and internal services from the ground up. You’ll work across a broad range of products and services , using AI-assisted development and modern engineering practices to solve real problems for thousands of customers.

Why join?

• Greenfield environment with genuine ownership from day one
• AI-supported development is the standard, not an experiment
• Modern Python environment with varied technical challenges
• Well-known international ClimateTech company making a real environmental impact
• Clear opportunities to take ownership and grow your technical responsibilities

Benefits

You’ll also receive an excellent benefits package including share options , subsidised meals , public transport support , flexible working hours , Wellpass membership , bike leasing , free language courses , childcare support , a generous pension scheme and plenty of other perks that come with working for one of Europe’s fastest-growing technology companies.

What you’ll do

• Develop backend services powering the customer portal and internal platforms
• Build integrations with third-party systems and external services
• Create new standalone services, APIs and proof-of-concepts
• Improve CI/CD, observability and automation across the platform
• Occasionally contribute to the frontend where required
• Work across different products and technologies as priorities evolve

What you should bring

• Commercial backend development experience with Python
• Experience designing and building REST APIs
• Experience integrating third-party systems and external services
• Very good German (B2+) and good English

This role is ideal for a backend engineer who enjoys variety, ownership and solving complex technical challenges. If you’d like to build new services, integrate modern systems and play a key role in a growing engineering team, we’d love to hear from you. Interviews are starting now, so apply to avoid missing out.

Keywords: Backend Engineer, Backend Developer, Python, FastAPI, Django, Flask, REST APIs, API Development, PostgreSQL, MySQL, SQL, React, Next.js, TypeScript, Docker, GitHub Actions, CI/CD, AWS, Cloud, OAuth 2.0, OIDC, JWT, Okta, Salesforce, SOQL, Apex, Vercel, Hetzner, GitHub, Observability, Prometheus, Logging, Monitoring, Webhooks, AI, Claude, LLMs, MCP, Greenfield, ClimateTech, Berlin.