Cambridge, UK
Charles Lynch
Senior Software Engineer, Healthtech/Medtech
Profile
Senior software engineer in the medtech/healthtech space, focused on SaMD products. Experienced across product engineering, NHS integrations (EPR systems, FHIR, NHS login and CIS2) and delivery under an ISO 13485 quality system, including coordinating go-lives with NHS trusts and private providers.
Strong front-end skills, with deep CSS knowledge, from patient and clinician portals to component libraries. Good at spotting pitfalls in designs and specifications early, and planning for future bottlenecks.
- 10 years
- building web software
- 4 years
- in health software
- MSc
- Computer Science, Distinction
- ISO 13485
- Lead Auditor training, 2026
Experience
Senior Software Engineer
Aug 2022 – presentPsyomics · Cambridge · Mental health triage
- Co-designed the company's in-house integration engine, which converts supplier EPR data into FHIR, retries failed messages and keeps an audit trail. Built its Rio and IAPTUS adaptors as sole developer; now live with two NHS trusts, including North London NHS Foundation Trust.
- Designed the product's FHIR APIs and built its NHS identity and messaging integrations: NHS login and CIS2 (OIDC), SAML single sign-on for trust systems, and MESH.
- Technical coordinator for several go-lives with NHS trusts and private providers, including accelerating a go-live with Midlands Partnership University NHS Foundation Trust ahead of schedule.
- Line manage one software engineer, including regular one-to-ones and their development plan, and take part in hiring decisions.
- Carried out technical due diligence on a potential SaMD acquisition jointly with the Head of Engineering, including calls with the target’s engineering team.
- Designed and built the main API as the company moved from a pre-revenue proof of concept to a revenue-generating business. It serves organisations that integrate in-house rather than through the engine.
- Key engineer on the rewrite of the core product from MVP to a maintainable platform developed under the company’s ISO 13485 quality management system.
- Built the patient and clinician portals, and set up the Storybook component libraries. Advocated for accessibility and responsive-design improvements across the product.
- Compiled and validated clinical data for evaluation reports submitted to the MHRA.
- Own and maintain the diagnostic algorithms for 15 mental health conditions, based on DSM-5, with test cases built alongside clinical experts.
- Manage the platform’s AWS infrastructure as code with Terraform, keeping environments repeatable and changes traceable. Led infrastructure upgrades and the PostgreSQL schema design.
Earlier roles
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Full-Stack Engineer, Morta
Apr – Nov 2020First employee at a start-up building software for large civil engineering projects and their contractors. Built Airtable-style spreadsheet tools for the construction industry. React, TypeScript and Python (Flask).
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Full-Stack Engineer, Green Custard
Nov 2018 – Nov 2019Consultancy building bespoke MVP web apps for clients including HSBC, JLL and Verizon, and a progressive web app for Joint Analytics. TypeScript, React and Vue on AWS (Lambda, S3, Cognito).
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Software Engineer, The Lettings Hub
Nov 2016 – Apr 2018Landlord property insurance platform, integrated with the on-site call centre. Built front ends in vanilla JavaScript and jQuery on a LAMP stack.
“Probably the best employee I’ve ever had.”Paul Swift, Engineering Lead · read on LinkedIn (opens in a new tab)
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Freelance Software Engineer
2019 – 2022Projects between roles, including a platform for massage therapists, an art website and an e-commerce store.
Own product
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Aglio
2026An app that generates recipes with AI to suit a family’s preferences, then orders the ingredients from the supermarket. Built for Android and iOS using Kotlin, and currently in testing and app-store review.
Alongside
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District Councillor, West Suffolk Council
May 2023 – Apr 2027Part-time, standing down in April 2027. Member of three committees:
- Performance and Audit Scrutiny Committee, reviewing the council's financial and non-financial performance
- Licensing and Regulatory Committee, covering licensing policy and licence decisions
- Development Control Committee, deciding significant planning applications
Skills
- Languages
- TypeScript
- JavaScript
- Python
- SQL
- Front end
- HTML
- React
- Storybook
- Accessibility
- Responsive design
- Styling
- CSS
- Sass/SCSS
- CSS modules
- Tailwind
- styled-components
- Design tokens
- Animations
- Back end
- Node.js
- GraphQL
- REST APIs
- PostgreSQL
- Testing
- Jest
- Vitest
- Playwright
- Cloud and delivery
- AWS
- Terraform
- Docker
- CI/CD
- Health and regulatory
- FHIR
- NHS login
- CIS2
- MESH
- OIDC
- SAML
- ISO 13485
- Ways of working
- AI-assisted development
Education
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MSc Computer Science, Keele University
2023Distinction, completed alongside full-time work.
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A levels, Bedford Sixth Form
2014A*A*A/A in Maths, Biology, Chemistry and Physics.
Certificates
-
MD-QMS ISO 13485 Lead Auditor, Comply Guru
2026 -
HashiCorp Certified: Terraform Associate
2026 -
AWS Certified Solutions Architect – Associate
2019 – 2022
Contact
Open to senior SaMD engineering roles in ISO 13485 organisations.
- Location
- Cambridge, UK