LLM Engineer Freelancer
Monterail · Kraków, Kraków, Woj. MaÅopolskie, Polska
Remote
Full-time
Mid
Posted July 28, 2026
Job Description
We're building a network of LLM Engineers who can design, build, and integrate practical AI features into existing products. We're looking for people to collaborate with on a freelance basis - part-time or full-time, depending on project needs.
This role is focused on delivery, not ML research. What matters most is your engineering foundation and your ability to integrate AI into real production systems using Python, Node.js, or Ruby codebases.
Requirements
What we're looking for
Please mention the word **WINNERS** and tag RNS43OC4xMDMuMTM5 when applying to show you read the job post completely (#RNS43OC4xMDMuMTM5). This is a beta feature to avoid spam applicants. Companies can search these words to find applicants that read this and see they're human.
This role is focused on delivery, not ML research. What matters most is your engineering foundation and your ability to integrate AI into real production systems using Python, Node.js, or Ruby codebases.
Requirements
What we're looking for
- Strong software engineering background - Python, Node.js, or Ruby
- Hands-on experience integrating LLM APIs into production systems (OpenAI, Anthropic, or similar)
- Ability to design pragmatic AI solutions within existing architectures
- Experience building RAG pipelines, embeddings, and vector search
- Understanding of cost, latency, and reliability constraints of AI systems
- Ability to work independently with clients and set realistic expectations
- Background in big data or data pipelines is a big plus
- English B2/C1
- Availability part-time or full-time (B2B contract)
- Add AI functionality into existing Python, Node.js, and Ruby 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 directly with clients to shape AI features and reduce manual effort
- Advise clients when NOT to use AI and navigate trade-offs around latency, accuracy, and cost
- Read more at Monterail Tech Network
Please mention the word **WINNERS** and tag RNS43OC4xMDMuMTM5 when applying to show you read the job post completely (#RNS43OC4xMDMuMTM5). This is a beta feature to avoid spam applicants. Companies can search these words to find applicants that read this and see they're human.
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