We are in search of a Senior Software Engineer to support a Government Critical National Infrastructure project. As a Senior Software Engineer you will lead multiple software development team(s) to deliver solutions with architectures that provide capability improvements, reduced costs and flexibility to adapt quickly to customer needs. This position is a full time, permanent role and applicants must have SC clearance or be willing to undergo the clearance process. What will I be doing? • Lead multiple software development team(s) to deliver solutions with architectures that provide capability improvements, reduced costs and flexibility to adapt quickly to customer needs. Understand high-level features and desired outcomes (both now and future). Assist Team building, understanding and analyzing desired outcomes. • Responsible for the application-level outcomes, prioritisation of those outcomes and maintaining a roadmap of capability improvements (in conjunction with the Senior Leadership Team) related to the software’s architecture and the end-to-end design. • Formulate software designs that create solutions meeting various desired outcomes (both now and future) while balancing the goals and constraints on the solutions (i.e. customer environment, cybersecurity, continuous integration/continuous delivery, etc.). • Clearly communicate the software architecture to software teams with varying levels of technical understanding. • Verify implementation to validate that the delivered software is consistent with the agreed architecture and will meet desired outcomes. • Manage change to the software architecture and control the software complexity. Make software architecture and solutions as flexible as possible. Defend against, when appropriate, suggested changes to the software architecture that introduce undue complexity or future supportability issues. Assist with trade off analyses of increased complexity. • Ensure the design goals – Performance, Modularity, Reliability, Maintainability, Reusability and Accessibility – are met • Design, test, and evaluate technologies and vendor solutions for inclusion into existing architecture to solve technical or customer problems • Lead design reviews & provide feedback • Ensure backlog includes any quality issues and technical debt relating to architecture • Clarify quality software requirements • Identify software risks early in the development cycle • Provide documented basis for architectural decisions What does Leidos need from me? • Degree in a technical discipline in addition to extensive recent experience in software development processes designing, developing and implementing enterprise scale technology. • Proven experience in leading teams in developing architectures. • Experience designing enterprise architecture with modern, enabling technologies and processes e.g. cloud computing, CI/CD, virtualization, agile design and development, REST services, standards-based authentication and authorization protocols. • Experience collaborating with cybersecurity, product owners, users and developers to design and communicate an innovative and secure architecture that enables continuous delivery of software. • Experience with decomposing monolithic software into manageable pieces, especially in related software domains. • Experience designing shared services like caching, eventing, and messaging in distributed environment. Key Skills: • Extensive Java or C experience including: • Best practice coding • Unit testing • Source control management. • Possess the knowledge and experience to perform complex tasks. • Ability to work independently and/or under supervision. • Effective communication It would be beneficial if you had: • C/C++ experience • Perl, Python, and/or bash Scripting experience • Database skills: Oracle or Postgres • Experience of Microsoft tools that support the design of solutions, e.g. Visio Clearance Requirements: You will be required to gain UK SC (Security Clearance) for this role. To be eligible for this role you must have UK Citizenship and been a resident in the UK for minimum 5 years. What we do for you: At Leidos we are PASSIONATE about customer success, UNITED as a team and INSPIRED to make a difference. We offer meaningful and engaging careers, a collaborative culture, and support for your career goals, all while nurturing a healthy work-life balance. We provide an employment package that attracts, develops and retains only the best in talent. Our reward scheme includes: • Contributory Pension Scheme • Private Medical Insurance • 33 days Annual Leave (including public and privilege holidays) • Access to Flexible benefits (including life assurance, health schemes, gym memberships, annual buy and sell holidays and a cycle to work scheme) • Flexi-Time Working