Senior Python Engineer (with GenAI Experience)

We are looking for a Python Tech Lead to take ownership of backend architecture, technical leadership, code quality, and team development.

You will work on complex backend systems, design scalable architectures, and lead a talented engineering team, collaborating closely with business stakeholders to translate requirements into robust technical solutions.

You will play a key role in shaping the product roadmap, making strategic architecture decisions, and ensuring that delivery aligns with business goals.

A key component of the initiative is the development of internal AI-powered capabilities, including a generic chatbot and voice-to-text features. You will provide technical leadership for AI integrations, ensuring scalable, maintainable, and performant systems. Basic German is a plus, but your expertise in strategy, technical leadership, and hands-on delivery is what matters most.

Why Join Us:

• Lead a high-impact project with real public-sector relevance

• Take ownership of architecture and system design end-to-end

• Influence the product roadmap and technical direction

• Work with a talented, collaborative engineering team

• Contribute to AI-driven, innovative features with large-scale impact

Responsibilities:

• Own backend architecture and technical decisions for scalable, high-load systems

• Lead the team in designing, implementing, and maintaining backend services and APIs

• Guide technical design reviews, code quality, and engineering best practices

• Balance hands-on development (~40–60%) with leadership and mentoring (~40–60%)

• Oversee scalability, performance optimization, and reliability of production systems

• Lead incident response, bug fixing, and production issue resolution

• Provide technical guidance for AI/LLM-powered features, such as chatbots and voice-to-text integration

• Collaborate closely with Product, Frontend, and AI/ML teams to translate requirements into technical solutions

• Drive adoption of observability, monitoring, and testing standards across the team

• Mentor and support engineers to foster team growth and knowledge sharing

Must-Have Skills:

• 5+ years experience in Software Development and 2+ years in Tech Lead / Team Lead roles on large-scale software projects

• Strong product mindset with experience in team organization, task prioritization, and project planning

• Ability to make and own technical and architectural decisions

• Strong problem-solving and proactive approach

• Excellent communication and interpersonal skills for cross-team collaboration

• Strong analytical and organizational abilities; able to manage dependencies, risks, and cross-team planning

• Hands-on experience with Python 3, including asynchronous programming

• Experience with backend frameworks (FastAPI, Django DRF)

• Experience designing and developing microservices or modular architectures

• Strong knowledge of relational (PostgreSQL) and NoSQL (Redis, MongoDB) databases

• Experience with vector storage (e.g., Qdrant)

• Understanding of testing strategies (pytest, TDD/BDD principles)

• Familiarity with Docker, CI/CD pipelines, and production deployments

• Strong experience with Kubernetes and cloud platforms (AWS, GCP, Azure)

• Knowledge of clean code principles, SOLID, typing (mypy, Pydantic)

• Experience with scalability, production monitoring, and incident management

• Experience building GenAI or LLM-powered products

Nice-to-Have Skills:

• Experience with public-sector or government digital transformation projects

• Familiarity with LangChain, LlamaIndex, or similar tooling

• Experience with open-source LLMs (LLaMA, Mistral, Mixtral)

• Experience in high-growth startup environments

• Knowledge of cost optimization for AI inference and infrastructure

• Basic German language skills for team onboarding and future customer projects

We offer*:

• Flexible working format - remote, office-based or flexible

• A competitive salary and good compensation package

• Personalized career growth

• Professional development tools (mentorship program, tech talks and trainings, centers of excellence, and more)

• Active tech communities with regular knowledge sharing

• Education reimbursement

• Memorable anniversary presents

• Corporate events and team buildings

• Other location-specific benefits

*not applicable for freelancers