Apply Online by 30th August 2025

OneFile, a Harris Computer company, are recruiting a Full-Stack Developer to join the team on a permanent basis.

The position will be hybrid working, between our Manchester city centre office and the successful incumbents home address.

We are looking for a Senior Software Developer to join our agile product development team. You will contribute to the development and stability of a cloud-based SaaS platform used in a regulated environment. This position requires someone who can take ownership of key features, resolve live issues efficiently, support release processes, and lead by example.

Apply now ->

The Role

In performing this role your responsibilities with the team will include (but will not be limited to) the following:

• Working as a senior member of the R&D team to lead and deliver changes across a web-based SaaS platform used in the education and training sector
• Leading by example in writing high-quality, maintainable, and testable code using C# (.NET) for APIs and modern JavaScript frameworks, especially Angular and React
• Maintaining development deadlines, provide accurate time estimates, and deliver work at high speed and quality standards
• Actively participating in resolving live issues and supporting the release process, including last-minute blockers or urgent production incidents
• Taking ownership of critical areas of the platform, demonstrating initiative, responsibility, and reliability across all stages of development
• Working closely with the Product team to understand business requirements and translate them into technical solutions
• Collaborating with UI/UX designers to deliver accessible, intuitive, and visually polished user interfaces
• Communicating effectively with internal stakeholders and external clients where required, offering clear updates, technical guidance, and realistic timelines
• Performing code reviews and provide constructive feedback to other developers to raise overall team standards
• Mentoring and supporting junior developers, fostering a culture of knowledge sharing and continuous improvement
• Understanding and work with various environment configurations and deployment scenarios (e.g., UAT, staging, live)
• Working within Agile Scrum methodologies, contributing to sprint planning, retrospectives, and daily stand-ups
• Engaging with QA engineers to ensure efficient testing coverage, and suggest more efficient ways to verify product quality when full UI automation is not viable.
• Contributing to efforts around technical documentation (e.g., READMEs, confluence pages) to improve maintainability across the codebase
• Applying an understanding of Azure cloud services (e.g., App Services, storage, identity) to help deliver scalable, cloud-first solutions

What we are looking for

The ideal candidate is proficient in modern JavaScript frameworks (Angular or React), RESTful C# APIs, and familiar with Azure cloud services and multi-environment configurations. You will be expected to participate in code reviews, guide junior developers, and collaborate closely with Product Managers and UI/UX Designers to deliver high-quality, user-centric solutions.

Benefits

Harris offer an extremely competitive UK employee benefits programme. 5 Personal Days leave entitlement are granted over and above the standard 25 days holiday and bank holidays. Harris also offers all UK employees an annual Lifestyle Reward amounting £325 per annum/pro rata.

Supporting your application

Our recruitment process will comprise of interviews and, at times, a written exercise, an assessment day and/or a presentation. As an equal opportunities’ employer, we want to make sure we do all we can to make this a positive experience for you. If your application is progressed, please make us aware of any adjustments or additional support we can provide you with.