Lead Backend JavaScript Developer, Contractor, Full-stack | NodeJS, TypeScript, AWS | Disruptive Start-up, B2C | Rate £550-650/day (Outside) | 3-months + | London Hybrid
Posted 1 day ago by Owen Thomas | Pending B Corp™
£650 Per day
Outside
Hybrid
London Area, United Kingdom
Summary: The Lead Backend JavaScript Developer will play a crucial role in a disruptive B2C start-up, focusing on building scalable and high-performance backend systems using NodeJS, TypeScript, and AWS. This contract position offers the opportunity to work closely with a small, innovative team and take ownership of significant projects. The role requires a strong background in backend technologies and experience in start-up environments. The position is hybrid, based in London, with a competitive daily rate.
Key Responsibilities:
- Develop, maintain, and optimize robust backend services and APIs that power 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
Key Skills:
- 6+ years commercial experience in Backend technologies, primarily focused on NodeJS
- Proven track record of start-up experience with innovative consumer B2C brands
- Confidence working on large datasets and complex API work
- Excellent communication skills and a proactive attitude
- Full stack experience with TypeScript is a plus
Salary (Rate): £650/day
City: London
Country: United Kingdom
Working Arrangements: hybrid
IR35 Status: outside IR35
Seniority Level: Mid-Level
Industry: IT
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