Sr Full Stack Developer (Healthcare AI Platform) - Fulltime - EMEA/APAC

We are building a next-generation, ontology-driven AI platform for the healthcare sector. An intelligent system that unifies fragmented data into a single semantic layer. This ontology forms the backbone of our agent architecture, enabling reasoning, context-aware automation, and structured decision support across some complex workflows.Although still in stealth mode, the product sits at the intersection of LLMs, knowledge graphs, and real-time workflow automation. You will help shape and build the core engine that powers this system.

We are searching for a Senior Full Stack Developer who can take ownership of major development areas, both architecturally and hands-on. You'll work alongside the small technical founding team during initial design and prototyping, then operate autonomously to build, refine, and scale mission-critical features. This is a rare opportunity to help architect a platform that blends AI, structured knowledge, and modern cloud technologies from the ground up.

What You Will Work On

• Develop core components of our AI-powered SaaS platform using TypeScript across the stack
• Build both frontend and backend services, with a strong focus on scalability, maintainability, and performance
• Integrate AI models and LLM-based pipelines such as LangChain or RAG into product workflows
• Design and manage cloud infrastructure using AWS or GCP with Infrastructure as Code tools such as Terraform
• Implement secure data flows involving SQL and NoSQL databases
• Deploy frontend applications to Vercel, managing environments, configuration, and performance
• Work closely with founders on technical direction, but operate independently day to day
• Ensure code quality using modern patterns, testing strategies, and best practices

Core Technologies

Frontend

• React and Next.js with TypeScript
• TanStack Query (useQuery), modern hooks, state management techniques
• Deployment and environment management on Vercel

Backend

• Node.js with TypeScript

• Express.js or similar API frameworks

• SQL (PostgreSQL) and NoSQL (MongoDB)

• Infrastructure deployment on AWS or GCP

• Infrastructure as Code (Terraform or similar)AI Integration

• Experience interfacing with LLMs and related tooling

• LangChain, RAG architectures, or similar frameworks

• Conceptual understanding of vector databases and prompt engineering, * Python for experimentation or prototyping

• Experience with secure data handling in regulated industries Familiarity with ontologies, taxonomies, or knowledge graph concepts (RDF, OWL, SHACL, schema design, or semantic data modelling)

• Experience building systems that consume structured semantic layers or graph-based APIs

• Exposure to domain-specific data modelling or standards-driven architectures, * Minimum 5 years experience as a full stack developer at senior level or above

• Strong expertise in TypeScript, React, and Next.js

• Solid experience with both SQL and NoSQL databases

• Proven capability in deploying and managing cloud infrastructure

• Experience consuming or building AI-powered services

• Fluent English, both written and spoken

• Comfortable working independently with minimal supervision

• Ability to take ownership of large development areas, * High autonomy, technically challenging work, and opportunities for leadership

• The chance to work on a meaningful product that improves quality of care for the elderly

If you want to help build an AI-driven platform that makes a real difference and enjoy taking ownership of technical challenges, we would love to hear from you.