Back End Developer

Senior - Lead Backend Developer | Node, Typescript, MongoDB | Hybrid, up to £90k

We’re looking for a highly experienced Backend Developer to join a fast-growing, ambitious start-up. This is a chance to design and build robust, scalable systems that power a product with real impact.

You’ll be working closely with cross-functional teams to develop high-performance APIs, manage databases, and implement cloud-based solutions, all while shaping the backend architecture from the ground up.

What you’ll be responsible for

• Architect, build, and maintain backend services using Node.js and TypeScript
• Develop scalable, high-performance APIs with Nest.js and Express.js
• Design, optimize, and manage PostgreSQL and MongoDB databases with Prisma
• Implement REST and GraphQL endpoints and support real-time communication via WebSockets
• Apply security best practices for authentication and authorization (JWT, OAuth, etc.)
• Integrate caching and messaging using Redis (Pub/Sub)
• Manage containerized applications using Docker and orchestrate with Kubernetes
• Automate infrastructure provisioning with Terraform and manage CI/CD pipelines
• Deploy and maintain applications on AWS, GCP, or Azure, including storage solutions like S3

Who we’re looking for

• Strong expertise in Node.js and TypeScript
• Experienced with frameworks Nest.js, Express.js, and ORMs such as Prisma
• Confident building RESTful and GraphQL APIs and real-time features with WebSockets
• Skilled in implementing robust security and authentication measures
• Knowledgeable in automated testing with Jest, Mocha, or Postman
• Comfortable with cloud infrastructure, containerization, and CI/CD (AWS/GCP/Azure, Docker, Kubernetes, Terraform)
• Bonus: experience with microservices, event-driven architectures, or serverless platforms

Location - London

Salary - up to £90k

Senior - Lead Backend Developer | Node, Typescript, MongoDB | Hybrid, up to £90k