Software Developer
Location: Chelmsford, Essex
salary: 35-40k
We are looking for a Software Developer to join our growing team, focused on delivering a modern, cross-platform Point of Sale (POS) system and related tools for the retail industry. This role offers the opportunity to work on a feature-rich product that integrates with hardware devices and runs reliably across Windows and Android, even offline.
You'll be part of a small, collaborative development team working with modern technologies including Next.js, TypeScript, Electron, and WebSockets to create a seamless, high-performance user experience.
Key Responsibilities
Develop new features and maintain our POS application using Next.js and TypeScript
Build responsive, intuitive user interfaces for desktop environments
Implement complex state management to handle POS operations
Integrate with hardware devices such as printers and card readers via Electron
Ensure secure authentication, authorization, and data encryption
Write and maintain automated tests (unit, integration, end-to-end)
Use WebSockets for real-time updates and data sync
Support offline-first functionality and robust data syncing
Contribute to code reviews, architecture discussions, and technical planning
Required Skills
2+ years of experience with React and TypeScript
Strong experience with Next.js
Solid understanding of state management solutions
Exposure to Electron or desktop app development
Experience working with REST APIs and WebSocket communications
Ability to write reliable automated tests
Understanding of secure coding principles and encryption
Confident using Git and collaborative development workflows
Nice to Have
Experience working on POS or retail software systems
Knowledge of mobile app development
Experience with hardware integration (e.g. thermal printers, USB devices)
Familiarity with offline-first design or Progressive Web Apps (PWAs)
Exposure to payment processing technologies
In Technology Group Ltd is acting as an Employment Agency in relation to this vacancy.