Senior AI Engineer | Freelance

• Remote Contract (UK Candidates only) • Ideal start date: ASAP • Contract Duration: 6 Months • Outside IR35 • Rate: £500-600 p/d Elsewhen, a London-based consultancy, designs and builds technology solutions for clients like Spotify, Google, Inmarsat, and Zego. Over the past decade, we have built a workplace prioritising impact, drive, and friendliness. We value outcomes over hours and agility over rigid processes. Work Environment: • Fully Remote in the UK • Join our team:https://www.elsewhen.com. We are looking for a talented Senior AI Engineer to join a brand new delivery squad focused on solving new client problems in 4-week cycles. Each project is designed to produce a working pilot that demonstrates clear value, not a polished long-term system. You’ll work in a 4-person team (AI Engineer, Product Manager, Data Scientist, Principal for AI Engineering), using AI coding tools (e.g. Claude Code) to reduce build time and get solutions into a usable state quickly. The role includes direct interaction with clients, where you’ll help shape solutions and explain technical decisions. Things you will be doing: • Experiment with POCs to find solutions for real-world problems using Large Language Models. • Collaborate on AI-driven projects, working alongside engineers, product managers and Data Scientists while maintaining clear documentation • Build Agentic solutions with LangGraph/ADK. • Familiar with different multi agent system patterns • Build and deploy LLM-based solutions using RAG • Familiar with different types of databases: Relational, Vector, Graph etc • Design and optimise APIs using Python and FastAPI to serve AI solutions. • Familiar with GCP ecosystem and Cloudrun • Build and optimise data pipelines for vector search and knowledge retrieval using Vector databases and embedding models. What We’re Looking For: • Experience building production LLM systems used by clients/customers • Background in Software Engineering with Python. • Solid understanding of the Python standard library and modern Python coding, testing, debugging and automation techniques • Hands-on experience building solutions using LLMs and Agentic architectures with ADK, LlamaIndex, or LangGraph. • Experience using AI-Assisted coding tools (such as Claude Code) to help accelerate development cycles • Ability to deliver usable outputs within 4 weeks • Working with vector databases for embedding and indexing. • Strong experience with cloud platforms • Strong experience with API design and frameworks like FastAPI or Flask • Solid experience with relational databases and SQL • Interest in expanding your knowledge into GenAI and machine learning • Excellent communication skills and the ability to work well in a collaborative team environment Nice to have: • Strong experience with GCP • Experience with Graph databases • Experience in bringing data-intensive projects into production • Experience with CI/CD pipelines Our Commitment to Diversity: Diverse thoughts, backgrounds, and perspectives create stronger teams and better technology. We welcome everyone, regardless of culture, appearance, or perspective, fostering individuality. We empower our team to challenge norms, grow ideas, and produce their best work.