Senior Full Stack Engineer — TypeScript · · LLMs · Healthcare AI

Senior Full Stack Engineer — AI/Ontology Platform (Healthcare)

Remote | TypeScript · · · LLMs

We're hiring a founding engineer to build an AI compliance platform for UK care homes - ontology-driven, LLM-powered, technically serious work.

What you're building

Sonarcare is an AI compliance platform for UK care homes - purpose-built around a regulatory knowledge graph that models how the Care Quality Commission actually inspects.

Think Palantir Foundry, but for a highly regulated sector in genuine crisis.

The ontology layer is already mapped and structured. You're not starting from zero — you're building the engine that brings it to life.

The role

This is the founding engineering hire. You'll own the technical build end-to-end — architecture, backend, frontend, and AI integration.

You'll work closely with the founder and a domain expert (ontologist/AI researcher) during initial design, then operate with high autonomy day-to-day.

What you'll work on first:

Data ingestion pipeline into a structured semantic layer

Backend services in to query and score against the regulatory ontology

LLM integration for report analysis and gap identification (RAG architecture)

A clean, functional frontend for care home managers )

Cloud infrastructure on AWS or GCP (IaC preferred)

Stack

TypeScript across the stack · · · PostgreSQL · MongoDB · AWS or GCP · LangChain/RAG · Vercel

Python is useful for prototyping. Vector databases a bonus.

What we're looking for

5+ years as a full stack engineer at senior level

Strong TypeScript, , and

Experience building and consuming AI/LLM-powered services

Comfortable owning cloud infrastructure, not just writing application code

Ideally:

some exposure to knowledge graphs, ontologies, or structured semantic data (RDF, OWL, graph databases) — not essential, but this is central to the product

Experience in regulated industries (healthcare, fintech, legal) is a genuine advantage

Fluent English, comfortable with async remote work, UK timezone overlap preferred

What's on offer

Competitive contract or full-time rate (open to either)

Fully remote, high autonomy

A technically interesting problem — not another CRUD app

Contract duration of more than 6 months. with 40 hours per week.

Mandatory skills:

TypeScript, React, , GCP, Large Language Model, Knowledge Graph, , PostgreSQL, LangChain, Web Application