About this role
Principal Engineer at Topoteretes UG (haftungsbeschränkt). Location: Berlin, Berlin, Germany. Role: own SDK, design API, improve performance Requirements: Principal-level ownership of a high-adoption SDK/developer platform/core library; strong Python skills; production systems experience; focus on DX, stability, maintainability; open-source leadership and LLM hands-on a plus. Category: Software Development Seniority: Senior Level Tools: Python, Rust, CI/CD, Testing Commitment: Full Time Workplace: Hybrid Languages: English