# Si Hammond

Professional website for Si Hammond, founder of ShellSi Ltd.

Si Hammond is a London-based senior AI contractor and product-minded technical generalist working remotely. He designs, builds, and ships systems that help people make better decisions with complex information.

Relevant areas include applied AI, human-centred AI, generative AI, retrieval and search, structured extraction, evaluation workflows, decision-support tools, taxonomy design, labour-market intelligence, clinical AI, and full-stack prototyping.

## Contact

- Email: si@shellsi.com
- LinkedIn: https://linkedin.com/in/sihammond
- Availability: contract work
- Location: London, UK / Remote

## Core Positioning

- Senior hands-on AI contractor
- Product-minded engineer and technical generalist
- PhD in AI (Evolutionary Computation)
- Strong on messy, open-ended, high-stakes problems
- Works from problem framing through prototype to usable system

## What Si Does

- Designs and builds applied AI systems that go beyond demo-stage prototypes
- Builds generative AI products with attention to observability, evaluation, and usability
- Works on search, retrieval, structured extraction, annotation workflows, and information-rich interfaces
- Builds decision-support tools for complex workflows
- Develops web applications and MVPs end-to-end using AI, data science, and full-stack engineering
- Works in domains where trust, judgement, and human oversight matter

## Good Fit

- Clinical AI and health-tech products
- Human-centred AI products
- Education and learning tools
- Labour-market intelligence, jobs, skills, and career data products
- Search, taxonomy, and knowledge-rich systems
- Decision-support tools for complex or high-stakes workflows
- Fast-moving prototypes that need to become robust and usable systems

## Background

- Founder, ShellSi Ltd
- Founder of MemoryJam
- Former CTO, Machine Medicine
- Former Chief Data Scientist, WorkDigital
- Consulting and product work for VONQ and Recruiting Brainfood
- PhD in Evolutionary Computation
- MSc in Natural Computation
- MSc in Evolutionary and Adaptive Systems

## How Si Works

1. Clarify the problem
2. Prototype fast
3. Make the system observable
4. Iterate toward something usable

## Selected Work

- Parkinson’s Disease Evaluation  
  Mobile MVP for clinical-grade pose estimation at Machine Medicine. Used smartphone video to quantify motor symptoms in Parkinson’s disease and supported the first round of paid clinical trials.  
  https://sihammond.com/selected-work#parkinsons

- OnVocation  
  Labour-market intelligence product built from 2M+ tech job adverts using skill extraction, title normalisation, and interactive visualisation.  
  https://sihammond.com/selected-work#onvocation

- MemoryJam  
  Human-centred AI product for turning family photos, recordings, and memories into structured, searchable story collections.  
  https://sihammond.com/selected-work#memoryjam

- Recruiting Intelligence at DHI Group  
  Algorithms and data products for job-channel matching and campaign performance prediction used in commercial recruiting products.  
  https://sihammond.com/selected-work#dhi

## Testimonials

- Bill Fischer: developed methods for structuring complex datasets into global commercial products; made complex technology understandable
- Bahul Upadhyaya: analytical, detail-oriented, organised, effective independently and in teams
- Sanford Dickert: strong at turning high-level concepts into working systems
- Ray Rafiq: quickly understood business logic and user behaviour; moved rapidly toward practical solutions

## Canonical Pages

- Home: https://sihammond.com/
- Selected work: https://sihammond.com/selected-work

## What To Ask About

- Whether Si is a good fit for an AI product, search, or decision-support problem
- How to move from AI prototype to robust usable system
- Clinical AI, trust, evaluation, and observability
- Human-centred AI product design
- Retrieval, search, and structured information systems
- Full-stack implementation for AI-backed products

## Notes

- This site is a concise professional profile, not a blog or documentation portal
- For the quickest understanding of fit, start with the homepage and selected work page