LLM Engineer - Freelancer
Monterail· LLM-Engineering, AI-Engineering, Machine-Learning-Engineering, Software-Engineering, AI-Integration, LLM-Engineer, AI-LLM-Engineer
About this role
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
- 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)
What you'll do
- 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
What do we mean by freelance?
- Read more at Monterail Tech Network
Originally posted on Himalayas
Frequently Asked Questions
Is the salary disclosed for the LLM Engineer - Freelancer position at Monterail?
The salary for this LLM Engineer - Freelancer role at Monterail is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Is the LLM Engineer - Freelancer job at Monterail remote?
Yes, this LLM Engineer - Freelancer position at Monterail is remote, with team members based in Poland. You can work from home or anywhere in the supported regions.
Is the LLM Engineer - Freelancer role at Monterail full-time or part-time?
This is listed as a Contractor position. It is posted as a LLM Engineer - Freelancer role in the LLM-Engineering, AI-Engineering, Machine-Learning-Engineering, Software-Engineering, AI-Integration, LLM-Engineer, AI-LLM-Engineer department at Monterail.
Which team or department does the LLM Engineer - Freelancer at Monterail belong to?
This LLM Engineer - Freelancer position is part of the LLM-Engineering, AI-Engineering, Machine-Learning-Engineering, Software-Engineering, AI-Integration, LLM-Engineer, AI-LLM-Engineer department at Monterail. See the full job description for more information about the team structure and responsibilities.
How do I apply for the LLM Engineer - Freelancer position at Monterail?
Click the "Apply Now" button on this page. You will be redirected to Monterail's official application portal hosted on himalayas where you can submit your application directly.
When was the LLM Engineer - Freelancer job at Monterail posted?
This LLM Engineer - Freelancer position at Monterail was posted on Jun 15, 2026. Apply as soon as possible — early applications are often reviewed first.
LLM Engineer - Freelancer
Monterail
You'll be redirected to Monterail's official application page on himalayas.