AI Engineer - Freelancer
Wrocław, Lower Silesian Voivodeship, Poland. Kraków, Lesser Poland Voivodeship, Poland. Warsaw, Masovian Voivodeship, Poland. Gdańsk, Pomeranian Voivodeship, Poland. Poznań, Greater Poland Voivodeship, PolandContractMiddle
Salary not disclosed
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Job Details
- Languages
- English B2/C1
- Required Skills
- Node.jsPythonReact NativeRubyAzureReactLangChain
Requirements
- Strong software engineering background (Node.js or Ruby preferred)
- Experience integrating LLM APIs into production systems
- Ability to design pragmatic AI solutions within existing architectures
- Understanding of cost, latency and reliability constraints of AI systems
- Ability to explain AI limitations to clients and guide realistic expectations
- Solid communication skills and a consultative mindset
- English B2/C1
- Availability part-time or full-time (B2B contract)
- Familiarity with modern AI tooling: LangChain, LlamaIndex, or Vercel AI SDK
Responsibilities
- Add AI functionality into existing Node.js / Ruby / Python / React / React Native codebases
- Build LLM-powered features: chat, summaries, classification, smart search, document Q&A
- Design lightweight RAG pipelines using embeddings and vector search
- Work with vector DBs (pgvector, Pinecone, Qdrant)
- Implement safe, reliable LLM endpoints (OpenAI, Anthropic, Azure)
- Work with PMs and clients to shape realistic AI features and transform workflows to reduce manual effort
- Advise clients when NOT to use AI and consider trade-offs related to latency, accuracy, cost and maintainability
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