Technical Lead Software Engineer (C#) - SC Cleared

We are seeking a Technical Lead Software Engineer with strong expertise in C# as the primary development language to support the delivery of secure, mission-critical software solutions within a government/defence environment.

The successful candidate will provide technical leadership to an Agile development team, ensuring the delivery of robust, scalable and secure applications. You will play a key role in solution design, software development, and sprint delivery, working closely with architects, delivery managers, and stakeholders within a highly regulated environment.

This role requires an active SC clearance due to the nature of the programmes being delivered.

Key Responsibilities

• Lead the technical design and development of software applications, with C# as the primary technology stack.

• Provide technical leadership and mentorship to software engineers within the delivery team.

• Design and develop secure, scalable Back End services and APIs.

• Contribute to Front End development using React and JavaScript where required.

• Work with SQL databases, including schema design, optimisation, and performance tuning.

• Ensure solutions align with secure coding standards and government delivery frameworks.

• Operate within a Scrum/Agile delivery model, supporting sprint planning, backlog refinement, and delivery coordination.

• Organise and facilitate sprint activities, including planning sessions, stand-ups, reviews, and retrospectives.

• Collaborate with solution architects, DevOps engineers, security teams, and programme stakeholders.

• Ensure delivery of high-quality, well-tested, and maintainable code.

• Support the implementation of DevSecOps and CI/CD practices where appropriate.

Required Skills and Experience

• Strong experience as a Technical Lead or Senior Software Engineer delivering complex systems.

• Expertise in C#/.NET development as a primary technology.

• Experience working with Java and C++ in enterprise or secure environments.

• Front End development experience using React and JavaScript.

• Strong knowledge of SQL and relational database technologies.

• Proven experience working in Agile/Scrum delivery environments.

• Experience coordinating sprint cycles and Agile ceremonies.

• Experience developing secure, high-availability software systems.

• Strong understanding of software architecture, design patterns, and best practices.

• Ability to work effectively with technical and non-technical stakeholders.

Desirable Skills

• Experience working on government, defence, or national security programmes.

• Knowledge of microservices architecture and distributed systems.

• Experience with CI/CD pipelines and DevOps tooling.

• Familiarity with cloud platforms such as Azure or AWS.

• Understanding of secure software development and compliance frameworks.

Security Clearance

• Active SC (Security Check) clearance is required.

• Candidates must be eligible to work on secure government or defence programmes and comply with all security requirements.

Personal Attributes

• Strong leadership and team mentoring skills

• Ability to operate effectively within secure, regulated environments

• Excellent communication and collaboration skills

• Proactive, analytical, and delivery-focused mindset.

Please send your CV in the first instance.