Lead Backend JavaScript Developer, Contractor, Full-stack | NodeJS, TypeScript, AWS | Disruptive Start-up, B2C | Rate £550-650/day (Outside) | 3-months + | London Hybrid

Lead Backend JavaScript Developer, Contractor, Full-stack | NodeJS, TypeScript, AWS | Disruptive Start-up, B2C | Rate £550-650/day (Outside) | 3-months + | London Hybrid Opportunity: We’re supporting an innovative, fast-moving founding team. They’re building an innovative B2C platform with lots of partnerships already signed up! Very exciting opportunity to take a lot of responsibility and work in a small team with proven founders and engineers - on a disruptive and data-heavy B2C application. You’ll work closely with the founding team to build scalable, secure, and high-performance systems that deliver an exceptional user experience. What You’ll Be Doing as a Lead Backend JavaScript Developer, Contractor, Full-stack | NodeJS, TypeScript, AWS | Disruptive Start-up, B2C | Rate £550-650/day (Outside) | 3-months + | London Hybrid • Develop, maintain, and optimize robust backend services and APIs that power our mobile and web platforms • Design and implement low-latency event processing pipelines • Ensure backend infrastructure is reliable, scalable, and secure • Enhance database efficiency and refine data storage strategies • Maintain comprehensive multi-layered test coverage • Collaborate closely with frontend and mobile teams to define and deliver API contracts • Set up and manage effective monitoring, logging, and alerting systems • Influence architectural decisions and help establish engineering best practices • Conduct code reviews and provide mentorship to junior developers • Explore and integrate new technologies to expand platform capabilities • Work with product and design teams to convert requirements into scalable technical solutions • Continuously refine development workflows and improve system performance What You’ll Need as a Lead Backend JavaScript Developer, Contractor, Full-stack | NodeJS, TypeScript, AWS | Disruptive Start-up, B2C | Rate £550-650/day (Outside) | 3-months + | London Hybrid • 6+ years commercial experience in Backend technologies, with majority focused on NodeJS. • Proven track record of start-up experience, working for cool innovative consumer b2c brands where you've taken ownership. • Confidence working on huge datasets and complex API work • Great communication skills and attitude to get your hands dirty across the stack and business challenges. • Nice to have: Full stack experience, with TypeScript Lead Backend JavaScript Developer, Contractor, Full-stack | NodeJS, TypeScript, AWS | Disruptive Start-up, B2C | Rate £550-650/day (Outside) | 3-months + | London Hybrid • Location: London • Type: Contract, full-time • Rate: circa £550-650 • Start: ASAP