Salary: £30,000 - 55,000 per year Requirements: Strong commercial experience with JavaScript Proven experience developing applications using React Hands-on experience with Next.js Solid experience working with PostgreSQL (schema design, queries, optimisation) Experience developing and supporting production applications Ability to work autonomously and deliver to agreed deadlines Familiarity with agile development practices Responsibilities: Design, develop, and maintain features for a stock management application Build responsive and performant user interfaces using React and Next.js Develop and integrate backend services using JavaScript Design, query, and optimise data models in PostgreSQL Collaborate with stakeholders to translate business requirements into technical solutions Participate in code reviews and ensure best practices are followed Troubleshoot, debug, and resolve application issues Contribute to documentation and knowledge sharing as required Technologies: Backend Support JavaScript PostgreSQL React More: We are seeking an experienced Application Developer to support the development of a stock management application in Newark. This is a 3-month contract role with a competitive rate of £400 per day outside IR35. Youll work closely with our product and technical team to enhance functionality, improve performance, and deliver a robust, scalable solution. This position is ideal for a hands-on developer who thrives in an agile environment. last updated 17 week of 2026