Join as the first engineering hire to architect an AI platform automating complex MedTech regulatory compliance. You will transition the product from prototype to a scalable production system, working directly with a CTO (PhD in Multi-Agent Systems) to help medical device companies navigate audits and reach patients faster through intelligent documentation automation.
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London, United Kingdom£80K + Equity
Founding Full Stack Engineer at Klaris - AI MedTech Startup
Are you ready to be the first engineering hire at a high-growth AI startup? Klaris is seeking a Founding Full Stack Engineer in London to architect a platform that’s automating the complex world of MedTech compliance. Backed by an NHS-affiliated VC and Antler, you’ll work alongside a PhD CTO to build a product that helps life-saving medical devices reach patients faster. This role offers founding-level equity, unparalleled autonomy, and the chance to define the technical culture of a company solving a massive problem in a regulated industry. If you have 4+ years of TypeScript mastery and 0-to-1 builder DNA, join Klaris and turn regulatory headwinds into a strategic moat.
Overview
Role overview
Company
Klaris
AI / MedTech / Lifesciences2-5 employees
Klaris - Pre-seed AI startup backed by an NHS-affiliated VC and Antler.
Responsibilities
What you will do
- Architect and build critical end-to-end components across the entire stack using Node.js, Next.js, TypeScript, and PostgreSQL while managing cloud infrastructure on AWS/GCP.
- Collaborate directly with the CTO to integrate custom AI models and LLM endpoints into a secure, production-ready platform that identifies regulatory gaps and remediations.
- Lead the development of intuitive user interfaces from Figma designs, ensuring high performance, responsiveness, and seamless state management for complex medical documentation workflows.
Candidate profile
Who this is a fit for
- 4+ years of professional experience with the TypeScript/React/Node.js stack, demonstrating the ability to design and implement successful, standalone products or high-scale features.
- Proven "0-to-1" startup DNA with the high agency required to thrive in ambiguity, making independent architectural decisions without needing existing structure or oversight.
- Technical expertise in modern DevOps practices, including containerization (Docker/Kubernetes), CI/CD pipeline management, and secure database schema design for sensitive regulated data.
What makes it remarkable
Why this role is remarkable
- Founding-level impact with significant equity and the autonomy to establish the technical foundations, engineering standards, and hiring culture of a mission-driven startup.
- Work on a non-wrapper AI product using proprietary datasets to solve a massive, high-stakes problem in a regulated industry with clear market pull and pilot traction.
- High-growth environment backed by strategic investors including an NHS-affiliated VC, Antler UK, and Vento Ventures, offering a direct path to shaping a generational MedTech company.
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