Senior Python Developer - Freelance w Warszawa, Polska

Netguru is a trusted partner in digital commerce. The company helps leading brands modernize B2B solutions, marketplaces, and retail ecosystems. Since 2008, it has empowered businesses with cutting-edge technology, AI-powered personalization, and world-class engineering and design teams. A certified B Corporation®, Netguru is trusted by major brands including IKEA, VW, OLX, Delivery Hero, Żabka, Wolt, Careem, and Vinted. How freelancing works at Netguru? As a , you can choose what works well for you. You decide when, where, and how you work on projects and tasks. We match you with work that fits your skills. Plus, you have access to various opportunities across different industries and companies. That means you will not only gain more experience, but also develop various skills. But there's more. Netguru freelancers can benefit from full-time collaboration and really be a part of the team. So, are you ready to make an impact? Join Netguru, and let's build beautiful software together. Currently we are looking for a Senior Python Developer. Salary range: up to 150 PLN/h Contract: Freelance B2B Start date: ASAP Engagement: full-time, 3 months Location: Remote (based in PL only) Polish language is a must-have Project is building an AI agent that works on a system that processes images. Requirements Requirements Must-have: Commercial experience building AI agents in production (not just PoC/demo), with strong Python skills (async, typing, tests). Hands-on experience with agentic frameworks (e.g. LangGraph, LangChain, CrewAI, AutoGen, Pydantic AI) or the ability to build agentic loops without framework. Experience working with LLM SDKs (Anthropic, OpenAI). Experience implementing MCP (Model Context Protocol) servers and/or clients. Experience with vector databases (pgvector, Qdrant, Weaviate, Pinecone) and PostgreSQL, including hybrid search. Polish language at C2 (native) level. Nice-to-have: Experience with TypeScript/Node for the application layer. Familiarity with evaluation/tracing tools such as LangSmith, Langfuse, Braintrust, or OpenTelemetry. Infrastructure experience: Docker, CI/CD, AWS/Azure/GCP, Bedrock/Vertex. Knowledge of the AI Act and GDPR, for the purpose of auditing agentic solutions. English language at B2+/C1 level. Benefits In return, we offer: 100% remote, flexible work. Work with an experienced team of developers and continuous development of your hard and soft skills. Dev-friendly processes such as Continuous Integration, Continuous Delivery, Code Review and bug bashes. Long-term collaboration on challenging products (FinTech, B2B software, E-commerce and more). Don't hesitate and apply right away! At Netguru, we're committed to creating an inclusive environment for everyone. If you require any disability-related adaptations during the recruitment process, please let us know. We're here to help!