Senior Fullstack Developer - React / Python

• Design, build, and maintain scalable full-stack features across the customer-facing platform - from API design to polished React UI
• Collaborate directly with GenAI engineers to integrate LLM-powered capabilities into production workflows
• Take end-to-end delivery ownership: architecture decisions, implementation, testing, deployment, and monitoring
• Contribute to engineering culture: code reviews, RFC processes, documentation, and technical standards
• Engage with enterprise clients’ technical stakeholders - translate complex requirements into clean, maintainable systems
• Help grow the team: mentor junior and mid-level engineers; participate in hiring interviews

Do you have experience in TypeScript?, Do you have a Master’s degree?, * 5+ years of professional fullstack development experience

• Strong React and modern TypeScript - you can architect a complex component tree and explain why
• Solid Python backend experience (FastAPI or Django); you write idiomatic, testable code
• Comfortable with relational databases (PostgreSQL) and RESTful API design; NoSQL and vector DB familiarity is a bonus
• Hands-on experience with AWS (or GCP/Azure) and CI/CD pipelines in production environments

Who you are

• German language on B1 / B2 level and willingness to learn German and to reach a working proficiency level (C1) within 6 months
• You thrive in autonomous, async-first teams and communicate proactively in writing
• You default to ownership, not waiting for someone to hand you a ticket

Strong bonus points

• Experience integrating LLMs, vector databases (Pinecone, Weaviate), or AI APIs into production applications
• Background in retail technology, e-commerce, or enterprise SaaS
• Open-source contributions or public technical writing

Compensation & Benefits

• €80,000 - €100,000 gross annual salary
• 30 vacation days + German public holidays

How we work

Fully remote-first with an international team. Occasional travel to Frankfurt required (up to 4 days/month).

Our hiring process

• Intro call
• Technical Screening
• HR Interview
• Engineering panel
• Culture & Values conversation