Software Engineer

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.

• 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

• 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

• 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.