Salary: £75,000 - 75,000 per year Requirements: Previous experience as a Solution Architect on large complex customer projects Production of cross domain (Business, Application Data, Infrastructure, Security) end to end architecture deliverables, such as proposal designs, high level designs and interface specifications Experience in bespoke and COTS applications Experience in integration concepts and technologies e.g. SOA, ESBs, EAI, XML, Web Services, MQ Experience working with large scale, distributed event driven architectures Experience in cloud with AWS or similar Experience in working collaboratively within a multi-supplier/vendor environment Strong consulting, leading and mentoring skills along with the ability to effectively communicate and collaborate with stakeholders at all levels Broad knowledge of and experience with a wide variety of application technologies, platforms, and tools including web-based systems, databases, middleware/integration technologies, security, and infrastructure Excellent written, verbal, and presentation communication skills Excellent analytical and technical skills Bachelors Degree in related field and/or extensive related experience Responsibilities: Lead the solution development through all phases of the delivery lifecycle Ensure that the solution architecture meets the key project functional and non-functional requirements for the LCST programme Provide support to the Head of Architect on various design decisions Conduct solution evaluations and make recommendations for buy vs build vs reuse Select appropriate platforms for projects Provide early-phase project estimates Ensure compliance with all design principles and architecture frameworks Ensure adherence to technical, security, customer, and regulatory standards Support customer and stakeholder meetings and technical discussions Technologies: AWS Architect Cloud Support Security Web XML AI ArchiMate Machine Learning TOGAF More: At Leidos, we are dedicated to enhancing the UKs defence supply chain through the Logistics Commodities & Services Transformation (LCST) Programme, which provides essential storage and distribution services. We are passionate about customer success and foster a culture of collaboration, innovation, and diversity. We offer meaningful careers with a commitment to work-life balance, alongside benefits such as a contributory pension scheme, private medical insurance, and dynamic working options. We welcome applications from all parts of the community, striving for a diverse and inclusive workplace. last updated 8 week of 2026