About the role
We're hiring an AI Engineering Intern to help us build production AI features for clients and internal products. You'll work across the full AI stack: prompt engineering, retrieval-augmented generation, fine-tuning, evaluation, and deploying ML systems. This is a hands-on role with real shipping deadlines, not a research internship.
What you'll do
- Build LLM-powered features using providers like Anthropic, OpenAI, or open-source models.
- Design and implement RAG pipelines - embeddings, vector stores, retrieval logic, evaluation.
- Prototype agentic workflows and tool-use systems for client use cases.
- Write evaluation harnesses to measure model quality and catch regressions.
- Integrate AI features into existing applications via clean APIs.
- Document patterns and findings so the team can build on your work.
What we're looking for
- Undergraduate in Computer Science, AI/ML, Data Science, or equivalent demonstrated experience.
- Strong Python skills and comfort with one ML/AI library (PyTorch, Hugging Face, LangChain, LlamaIndex, etc.).
- Hands-on experience with at least one LLM API or open-source model - even via side projects.
- Understanding of how transformers, embeddings, and tokenization work at a practical level.
- Comfortable reading research papers and adapting techniques into working code.
- Able to commit to a 3–6 month internship.
Nice to have
- Published projects, blog posts, or open-source contributions involving LLMs or ML.
- Experience with vector databases (Pinecone, Weaviate, pgvector, Qdrant).
- Familiarity with evaluation frameworks (Ragas, Promptfoo, LangSmith).
- Backend experience in Python (FastAPI) or Go.
- Cloud deployment experience (AWS, GCP, Modal, Replicate).
What you'll gain
- Monthly stipend.
- Mentorship from engineers actively shipping AI to production.
- A portfolio of real AI features deployed to enterprise users.
- Clear conversion path to a full-time AI engineering role.
Ready to apply?
Email us your CV and a short note on why this role. We read every application and reply within a week.
Or email directly: hello@codesagelabs.com
