Full Stack JavaScript Developer - Contract Manchester hybrid (3 days onsite per week) Outside IR35 £450 - £525 per day Contract Length: 6 months I'm working with a SaaS start-up in the B2B retail space they've just closed Series A and are kicking off a new payments platform for their client base. They're building smart tools for retailers to manage suppliers, stock, and payments all in one place. They need a strong full stack JavaScript contractor to help lead this greenfield build. You'll be working closely with the CTO and product team to bring the new feature to life. The stack: Frontend: Vue3, TypeScript Backend: Node.js, PostgreSQL, Stripe API, GraphQL exposure, RESTful API design Infrastructure: Docker, AWS, CI/CD Pipelines What they need from you: 5 years of full stack JavaScript experience with strong commercial use of Vue and Node Ability to design, develop and document scalable APIs and microservices Comfortable integrating third-party services (Stripe experience essential) Experience managing PostgreSQL databases and designing relational data models Strong TypeScript fundamentals and ability to enforce typing and testing standards Familiar with containerised environments and deploying via AWS Confident in handling security, authentication and role-based access at scale Ability to work independently and make architectural decisions when needed Experience in Agile teams and communicating directly with product/CTO maintainable code Why this one's worth a look: Fully greenfield project Direct influence over how it's built Outside IR35 Clean, modern stack Fast feedback loop and minimal red tape