Senior Backend Engineer
21 hours ago
Chester
A fantastic opportunity for a suitably experienced Senior Backend Engineer seeking a role where they can make a real difference. You will help define how AI is safely used in front line healthcare. Our client has closed a $12million Series A fundraise and they're now hiring their second back end engineer to work alongside their extremely experienced Head of Backend and VP of engineering as well as closing working with a team of doctors helping build the next generation of AI powered clinical knowledge tools As a Senior Backend Engineer, you’ll play a key role in building and scaling the core infrastructure that powers our clients platform. This is a hands-on role requiring deep experience in backend engineering, cloud systems, and architectural thinking. Senior Backend Engineer Location: Belfast - Hybrid Salary: £80,000 - £110,00 + Stock Options + Benefits Tech Stack Cloud-native platform. Experience with the following will be highly desirable: • AWS – Lambda, API Gateway, Cognito, S3 and OpenSearch, • Node.js / TypeScript and Python, • DynamoDB and PostgreSQL, • Serverless Architecture and microservices patterns., • Infrastructure tools like Terraform, Docker, and CI/CD pipelines., • Security and compliance practices, especially relevant in healthcare. Responsibilities: • Design and build robust, scalable cloud-first backend systems., • Contribute to infrastructure-as-code practices and DevOps tooling., • Build and maintain LLM-powered features such as RAG pipelines for clinical information., • Develop and optimise agentic document extraction workflows to process clinical PDFs, policies, and handbooks into structured formats., • Collaborate closely with our product and frontend teams to deliver high-impact features., • Write clean, well-tested code and guide best practices across the engineering team., • Take ownership of system reliability, performance, and security in a healthcare context. Key Skills: • 5+ years of backend engineering experience in production environments., • Strong AWS proficiency - hands-on experience building and deploying systems in the cloud., • Familiarity with embedding models, chunking strategies, and semantic search., • Experience working in a small team or startup environment., • A pragmatic problem-solver who balances speed with sustainability., • Passion for writing maintainable, scalable code., • Knowledge of security and compliance best practices (e.g. HIPAA/GDPR, NHS DTAC, SOC 2)., • Bonus: experience in healthcare, medtech, or regulated environments.