Available for contract · UK Remote

Si Hammond

AI that works in the real world.

Senior AI contractor. PhD. Clinical AI, GenAI systems, and full-stack builds — for health, education, and the rare problem worth solving.

What I bring

Applied AI & GenAI

I build GenAI systems that actually get deployed — RAG pipelines, agentic workflows, structured outputs, and the evaluation frameworks that tell you whether they're working. I've been doing this since before the current gold rush.

Clinical & Health AI

I've worked inside a clinical AI startup from prototype through to paid trials. I understand the regulatory context (MHRA, NHS governance), the real-world constraints, and the difference between a demo that impresses and a system a clinician will actually trust.

Full-Stack & Prototyping

I can take an AI idea from architecture through to a working web application. Python backends, modern JS frontends, data pipelines, knowledge graphs — I've built and shipped all of it, often as a team of one.

Fifteen years building AI systems that ship.

My PhD in Evolutionary Computation gave me a grounding in optimisation and search that turns out to be surprisingly useful when building AI systems that need to do more than generate plausible text. I've spent the last fifteen years moving between data science, full-stack development, and — more recently — the fast-moving world of generative AI and agentic systems. I've worked in pre-seed startups, post-acquisition businesses, and everything in between.

Education

  • PhD, Evolutionary ComputationUniversity of Birmingham
  • MSc, Natural ComputationUniversity of Birmingham
  • BSc, AI & Computer ScienceUniversity of Birmingham

Experience

  • Founder, ShellSi LtdCurrent
  • Machine MedicineCTO & Co-Founder
  • WorkDigitalChief Data Scientist
  • VONQ · Recruiting BrainfoodData Science & Full-Stack

Where I work

01

Health & Clinical AI

Healthcare is where the stakes are real. I'm drawn to problems where AI can reduce clinician burden, surface insights from messy clinical data, or help patients navigate complex systems — and where the regulatory and safety constraints make the engineering genuinely hard.

02

Education & EdTech

Education sits at the intersection of two things AI is genuinely good at: personalisation at scale, and making sense of complex unstructured data. There's significant work to be done here, and I'm interested in doing it.

03

Labour Market Intelligence

I've spent years building tools that make sense of job markets, skills data, and career trajectories. It's a domain I know deeply — and one where AI is creating both new possibilities and new responsibilities.

Selected work

Full portfolio at shellsi.com →

What people say

Simon possessed the intellect and creative problem solving abilities required to develop some of the key methods that we use to interrogate/structure/package these datasets into commercial products that we sell globally. He also was able to take very complex technology and make it understandable to a wider group within the company.

Bill Fischer CTO at VONQ · Board Advisor · Founder

Simon is a conscientious and hard working developer, he is extremely analytical with a keen eye for detail and an ability to grasp complicated concepts with little effort. He is able to work equally alone as with a team and is always active, attentive and productive when working with others. He is very well organised and uses this to effectively focus on the task at hand while still being cognisant of the rest of his work load.

Bahul Upadhyaya Innovator, architect, and developer

Simon is a very high-level thinker, bringing about high-level concepts to reality through his artisan coding abilities.

Sanford Dickert Director, Product / Technology @ Kindred Factors · CTO · Director of Product

Bringing Simon in brought immediate results. Our algorithms weren’t quite right. Simon quickly picked up on both the business logic and how users would behave and made quick headway toward a solution that was elegant and quick to implement.

Ray Rafiq Unretiring… · Client

Let's talk

I'm currently available for senior AI contract work — particularly in health, education, and adjacent domains. Remote, UK-based. If you have a problem worth solving, I'd like to hear about it.

si@shellsi.com LinkedIn → linkedin.com/in/simonhammond