Generative AI Engineer (LLM Expert)

Job Title : Generative AI Engineer (LLM Expert)

Location : Remote

Employment Type : Part Time / Contract

About BigRio

BigRio is a Boston-based, remote-first technology consulting firm specializing in advanced data and software solutions. We partner with forward-thinking organizations to deliver scalable, cost-effective, and innovative technology, with particular expertise in AI / ML, data engineering, and cloud-native applications. Our clients span healthcare, life sciences, government, and enterprise sectors, and we are known for our ability to tackle complex challenges with cutting-edge solutions.

About the Role

BigRio is seeking a highly skilled Generative AI Engineer with expert-level experience in LLMs , OpenAI APIs , prompt engineering , and retrieval-augmented generation (RAG) . This is a senior, hands-on role -ideal for someone who has already mastered these technologies and is ready to deliver production-ready solutions. This is not a learning-on-the-job position.

You will work with our internal team and clients to design, build, and optimize AI-powered applications with high-performance standards and robust infrastructure integration.

Key Responsibilities

• Design and implement LLM-driven features using OpenAI API (including reasoning vs. non-reasoning models, model versioning, temperature settings, and best practices).
• Apply advanced prompt engineering and model tuning techniques to drive performance and accuracy.
• Build retrieval-augmented generation (RAG) systems using Langchain and ChromaDB .
• Develop interactive AI tools and UIs using Gradio .
• Ensure seamless SSO integration and secure access controls.
• Implement Dockerized environments for scalable deployments.
• Connect and automate data pipelines including Google Drive integration .
• Write clean, maintainable code in Python , and contribute to a collaborative, agile development environment.

Required Qualifications

Nice to Have

Previous experience in healthcare, biotech, or highly regulated domains.