What you must have

• At least 5 years of professional experience building backend services for production systems.
  
• Extensive, idiomatic Node.js experience, including building large, highly available APIs and services.
  
• A strong understanding of the RESTful API paradigm (GraphQL and event-driven architectures are definitely a plus).
  
• Strong working knowledge of JavaScript and/or TypeScript and the Node.js ecosystem (Express, NestJS, Fastify or equivalent).
  
• Solid relational database experience, particularly with MySQL or PostgreSQL, including schema design, query optimisation and indexing.
  
• Thorough understanding and extensive experience with automated testing (unit, integration and end-to-end).
  
• Working knowledge of caching layers such as Redis, and familiarity with message and queueing systems.
  
• Hands-on experience deploying and operating services on AWS and/or Google Cloud, including familiarity with containerisation (Docker, Kubernetes).
  
• Good working knowledge of the use of Git.
  
• Experience within an agile development environment.
  
• A solid understanding of CI/CD concepts and automated release management for backend services.
  

• Designing, building and maintaining the API infrastructure, services and systems that power high-traffic, consumer-facing applications for our clients.
  
• Extensively collaborating with Product, Frontend, UX and other engineering stakeholders on requirements, their implementation, process improvements and domain analysis.
  
• Implementing backend services that realise customer value, focussing on quality through testing, automation and code review.
  
• Critically analysing the systems you work on to identify performance bottlenecks and opportunities for improved scalability, reliability and customer experience.
  
• Writing and shipping code that is idiomatic, maintainable and efficient, and debugging and resolving production issues across services.
  
• Recognising impediments to team efficiency (technical debt) and proposing and implementing improvements to standards, tooling and processes.