Timing Liu (Tim)

Full-Stack Clinician · Founding Engineer, NHS Products & Clinical AI
London, UKtimingliu.dev@gmail.comtimingliu.orggithub.com/liutimingDownload PDF

Profile

NHS doctor and full-stack engineer building products for clinical work. Founded health products, operate live services and build clinical-AI systems. Combines direct understanding of NHS workflows with practical product and engineering experience.

Founding & Product Work

Finomics · Co-Founder & Product EngineerSince 2025

Co-founded cloud software for NHS rotas, pay and leave, shaped by direct experience of the problem on the frontline.

  • Build across React, TypeScript, Python, Postgres, infrastructure-as-code and CI/CD.
  • Developed a scheduling engine that translates NHS working-time rules into constraints, allowing the system to identify safer staffing options.
  • Piloting at two hospitals, with estimated savings of about £7,500 per clinician a year.
ClinicianWiki · Founder & Full-Stack Developer2020 to 2021

Founded and built a free, verified medical wiki where doctors could publish for patients in the open. Led product and technology as it grew into a 10-person charity, leading to an NHS Clinical Entrepreneur place.

Stack: customised MediaWiki, PHP, Apache, MySQL, Linux and Azure DevOps.

Sync · Founder & Full-Stack EngineerSince 2025

Built and operate a live product that coordinates calendars, identifies genuine group availability and books venues. Next.js 15, React 19, TypeScript, Prisma and Postgres; release automation, automated backups and migration checks.

Clinical Product Delivery

Cambridge Clinical Trial Unit · Full-Stack Mobile Developer
Built mobile data-capture apps for three live COVID-19 trials during the first wave. Xamarin, iOS and Android.
Arete MedTech · Software Engineer
Shipped a COPD/asthma tracking app with design and hardware teams. Xamarin, Flutter, iOS and Android.
Resident Doctor · Chelsea & Westminster Hospital
Frontline acute medicine, ED and geriatrics since 2025: direct understanding of the friction, risk and incentives in everyday clinical work.
Mansfield Advisors · Technical Consultant
Data pipelines, text mining and modelling that support healthcare and pharma commercial decisions across multiple markets.

Clinical AI Work

Prima Mente · Deep Learning EngineerSince 2024

Build components of Pleiades, an epigenetic foundation-model programme with 90M to 7B parameters trained on 1.9T methylation-data tokens. Work spans models, evaluation and tooling.

Moorfields Eye Hospital / Cambridge Centre for AI in Medicine · Deep Learning Engineer2021 to 2024

Built multimodal models from images, genetics and health records for clinical diagnostics. Work includes a retinal foundation model in Nature (2023), plus studies in JAMA Psychiatry and Ophthalmology Science.

Wellcome Sanger Institute & National University of Singapore · Computational Biology / Statistical Genetics2020 to 2022

Built diagnostics and statistical-genetics pipelines on HPC, including work on a 44,000-person cohort, Nanopore and Illumina workflows, and open-source genetics tools.

Technical Skills

Product: TypeScript, JavaScript, React, Next.js, Python, SQL, Postgres, Prisma, REST, OAuth and deployment automation.

Mobile & data: Flutter, Xamarin, iOS, Android, R, MongoDB, web scraping and NLP.

AI: PyTorch, transformers, foundation models, multimodal and causal modelling, LLM tooling, GPU and HPC.

How I work: product ownership, rapid iteration, regulated workflows and reproducible systems.

Selected Work

27 publications, 3 patents and 1,450+ citations. Work across clinical AI, ophthalmology, genomics and diagnostics, including Nature, JAMA Psychiatry, Clinical Chemistry and Scientific Reports.
Recognition: NHS Clinical Entrepreneur; MIT COVID-19 Challenge winner; Cambridge Engineering Project Prize for the top reinforcement-learning project.
Education: University of Cambridge MB BChir, Medicine (2025); MA (Hons), Engineering, Information & Bioengineering (2022).

Selected Side Projects

Agentic Todo. An agent-native task board with intake, triage and a durable dispatch layer for execution and due diligence; escalates only irreducible decisions. Node, TypeScript, SQLite, Plane API, REST, MCP and Restate.
Cook. A mobile recipe product with 500+ recipes and an LLM sous-chef. React, Vite, Supabase, Anthropic SDK, Capacitor.
wardsim. A ward-round trainer that simulates interruptions and assesses clinical reasoning. Python and LLM tooling.