Senior Backend Developer

Who you are

• You have deep backend experience in TypeScript and NestJS (or a comparable Node.js framework)
• You've built event-driven architectures using BullMQ/Redis or similar
• You've designed and built well-structured RESTful APIs for mobile apps and third-party integrations
• You've debugged complex issues across distributed systems and microservices
• You have hands-on experience with Google Cloud Platform, including Cloud Run, Cloud Functions, and Firestore
• You've mentored other developers through code reviews
• You have solid DevOps experience, including setting up and maintaining CI/CD pipelines (Cloud Build, GitHub Actions or similar)
• You've evaluated and integrated third-party services and APIs
• You've implemented monitoring, logging, and alerting to keep production systems reliable
• You've worked in a fast-paced startup or early-stage environment
• You're confident in database design, data modelling, and query optimisation
• You're passionate about sustainable fashion and our mission to help people buy better, not more
• You've led technical discussions and made architectural decisions on scalable systems
• You have the right to work in the United Kingdom

What the job involves

• Design and build scalable backend services in NestJS that power the Whering app for millions of users
• Own our GCP infrastructure, from Cloud Run and Cloud Functions to Firestore and Compute Engine
• Build and maintain CI/CD pipelines that keep deployments fast and automated
• Set up the monitoring, logging, and alerting that keep our platform reliable
• Lead system design and architecture decisions that shape our long-term technical foundation
• Optimise performance and database queries to keep the user experience fast
• Raise the bar for the team through code reviews and technical mentorship
• Partner with Product and Design to assess feasibility and set realistic timelines
• Keep technical documentation clear and current
• Join sprint planning, stand-ups, and retros as part of our agile process

Benefits

• Unlimited holidays
• 4-day work week
• Hybrid working-remote and in-person London office