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This is a full-time, permanent position for a Software Full Stack Support/Developer in a hybrid working model, requiring on-site attendance at least three days per week in Milton Keynes. You will play a key role in designing, developing, and supporting web-based applications for a large-scale managed service program. This position offers the opportunity to work on complex, high-impact projects, collaborating with cross-functional teams to deliver robust, scalable solutions using modern development practices.
Candidates must be eligible to obtain UK Security Clearance (standard clearance process takes approximately 6–9 months).

Key Responsibilities:

* Provide Software Applications Engineering support for larger and more complex applications and project areas.

* Perform build and deployment activities for application development efforts.

* Design and implement requirements that are effective, timely, and compliant with project standards.

* Configure, program, and test application components and technical architecture.

* Troubleshoot and resolve defects and performance-related issues.

* Ensure compliance with coding standards through design reviews, coding, and unit testing.

* Collaborate with Business Analysts to understand requirements and use cases.

* Estimate and size assigned use cases with input from the BA team.

* Independently deploy QAT or UAT environments.

* Work closely with testing teams to resolve regression and newly identified issues.

* Explore alternative solutions using structured decision-making techniques.

* Participate in code reviews and collaborate with developers, designers, and architects.

* Maintain integrity of pre-production environments (development, test, QA, staging).

* Lead efforts in process improvement and technical automation.

* Provide regular status updates and mentor less experienced team members.

Key Qualifications

Must-Have:

* Strong experience in .NET (C#), ASP.NET, JavaScript, HTML, CSS development.

* Proven background in web development using the above or similar technologies.

* Experience working with and supporting operational systems.

* Knowledge of web development patterns.

* Proficiency in Microsoft SQL Server development and scripting or similar.

* Familiarity with Azure DevOps or equivalent tools.

* Working knowledge of modern development patterns, including Agile.

* Eligible for UK Security Clearance.

Preferred:

* A working knowledge of MVC framework or similar.

* Experience with other scripting or database technologies.

Additional Information

* This is a full-time, permanent role.

* We are unable to support sponsorship for this position.

* You will be required to attend our site at least three days per week and therefore must live within commutable distance from Milton Keynes