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.NET Developer @ Tech4 Ltd

Southampton Row, SouthamptonOnsiteFull-time
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About this role

Salary: £55,000 - 60,000 per year

Requirements: Commercial experience developing software using C# and .NETExperience building or supporting APIs, web services and system integrationsExperience with ASP.NET or ASP.NET CoreExperience with SQL Server and database design and queryingExperience using Git for source controlExperience using Azure DevOps or similar tooling for work tracking, build and deploymentExperience working within a software development team in a structured commercial environmentExperience troubleshooting and supporting live applicationsStrong problem-solving skills and the ability to work through technical issues in a practical wayGood communication skills and the ability to work with both technical and non-technical colleagues Responsibilities: Develop, enhance, test and support .NET-based applications, APIs and integrationsWork on customer-facing, operational and internal systems to improve reliability, usability and business valueCollaborate with business stakeholders, product owners, analysts and third parties to understand requirements and translate them into workable technical solutionsBuild and maintain system integrations between internal platforms and external suppliers or servicesSupport the ongoing improvement and maintenance of existing applications, including troubleshooting defects, performance issues and production incidentsContribute to technical design decisions, ensuring solutions are secure, supportable and aligned to good engineering practiceWrite clean, maintainable code and follow agreed standards for version control, testing, deployment and documentationParticipate in code reviews, peer support and knowledge sharing within the teamAssist with release activity, deployment processes and post-release support where requiredHelp improve development practices, documentation and technical resilience to reduce dependency on individual team membersWork with Azure DevOps, Git and CI/CD tooling to support structured software deliveryContribute to a collaborative, delivery-focused team culture and support continuous improvement in the way we develop and support softwarePerform other ad-hoc duties assigned by the Head of IT from time to timeAccept responsibility for personal development within the scope of the role and encourage the development of others Technologies: ASP.NETAzureC#CI/CDDevOpsGitSupportSQLWebCloud More:

We are a fast growing and highly successful organisation offering excellent training and career development opportunities for the right candidate. This is a hands-on Software Developer role focused on developing, enhancing and supporting customer-facing, operational and internal systems across a mixed legacy and modern estate. We offer a basic salary of £55,000 to £60,000 plus excellent benefits. The role is based in our Southampton office two days per week, with three days remote working.

last updated 31 week of 2026

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