Senior AI Engineer | Seed-Stage HealthTech | Fully Remote | £80K-£140K
We're partnered with a startup that's transforming how drugs get approved and reach patients.
They've built an AI platform that replaces one of pharma's most expensive and time-consuming manual processes, clinical trial validation, and have just proved the concept with a major global pharmaceutical company, cutting internal timelines by over a year. They're close to closing a Series A, scaling off the back of multi-million pound contracts, and this is hire number one of several.
They need a hands-on Senior AI Engineer to work directly alongside the CTO, owning the architecture and delivery of RAG systems, agentic LLM workflows, and core AI infrastructure from day one. A building role, the vast majority of your time will be spent writing code and shipping features, not managing or researching.
What you’ll work on
- Building and shipping RAG pipelines that power AI co-pilots for clinical documentation
- Designing and iterating on agentic LLM workflows grounded in a graph-based data engine
- Setting up eval pipelines to track and continuously improve output quality
- Working directly with the founding team to translate customer feedback into shipped features
What they’re looking for
- Proven production experience with RAG systems and agentic LLM pipelines
- Startup background, you've worked in a fast-moving 0-to-1 environment and thrived
- Strong software engineering fundamentals, reliability over prototypes
- Founding engineer mindset: ownership, speed, bias towards action
- Regulated industry experience is a plus, not a requirement
Compensation and logistics
- £80,000 to £140,000 depending on experience
- Fully remote, London candidates preferred
- Equity included
Interested or know someone who might be? Drop a comment or send a direct message.
Artificial Intelligence Engineer in London employer: HartleyCo
As a Senior Program Manager at our dynamic London office, you'll thrive in a collaborative and innovative work culture that prioritises employee growth and development. We offer competitive salaries, flexible hybrid working arrangements, and opportunities for international travel, ensuring you can build meaningful client relationships while advancing your career in a supportive environment.
