Salary: £80,000 - 80,000 per year Requirements: Strong experience with MongoDB (data modelling, indexing, aggregation pipelines, performance tuning) Proficiency in Node.js and the wider JavaScript/TypeScript ecosystem Familiarity with Express.js and/or Fastify Experience in RESTful API design and distributed systems Knowledge of AWS or similar cloud platforms Expertise in microservices architecture Understanding of testing frameworks (Vitest, Jest, Mocha, etc.) Experience with CI/CD pipelines and DevOps best practices Proficient in GitHub workflows Familiar with observability and monitoring tools (e.g., Datadog) Experience with Docker and Kubernetes Nice to have: Integrating AI/ML models into production systems Nice to have: Working with LLM APIs (OpenAI, Anthropic, etc.) Nice to have: Prompt engineering and AI workflow tools (LangChain, Flowise) Nice to have: Building internal AI-powered automation tools Responsibilities: Collaborate with the founder to define and evolve the technical roadmap Lead architectural design and make critical technology decisions Champion engineering best practices, code quality, and technical excellence Mentor, coach, and develop engineers at all levels Foster a culture of ownership, collaboration, and innovation Architect, build, and scale backend services and RESTful APIs Design, optimize, and maintain MongoDB database solutions Improve system reliability, performance, and scalability Resolve complex production issues with robust solutions Implement microservices and modern backend patterns Partner with Product, Design, and the founder to deliver high-impact outcomes Participate in hiring and technical interviews to expand the engineering team Drive improvements in processes, CI/CD pipelines, and DevOps practices Ensure effective planning, estimation, and execution across initiatives Technologies: AI API AWS Architect Backend CI/CD Cloud Datadog DevOps Docker GitHub JavaScript Jest Kubernetes LLM Mocha MongoDB TypeScript microservices NodeJS ExpressJS Support Vue More: We are a high-growth startup backed by a larger, established group. As a remote-first company with offices in London and Manchester, we offer flexible working hours, 25 days of annual leave, 8 bank holidays, and 2 Christmas shutdown days, with the option to purchase an additional week of leave. In this hands-on leadership role, you will work directly with the founder to shape the technical vision while leading a talented engineering squad in a fast-moving environment. last updated 11 week of 2026