IT Software Systems Engineer

Salary: £34,000 - 56,000 per year

Requirements:

• Proven track record with a minimum of 3 years experience in a Systems Engineering role for IT/software systems.
• Familiarity with Systems Engineering frameworks such as ICOSE, NAF, DODAF, MODAF, and MBSE.
• Good working knowledge of software and hardware used for IT systems technologies.
• Experience of Systems Engineering within a software/IT delivery.
• Experience of working within Agile and Waterfall delivery models.
• Excellent analytical, organisational, and communication skills.
• Self-starter with the ability to work with minimal supervision.
• Bachelors degree or suitable experience in an Engineering or Technology subject.
• Demonstrated ability to manage multiple priorities and work effectively in cross-functional teams.
• Ideally proficient with system modelling tools such as SysML and UML, and enterprise design software/system modelling such as Cameo and Archimate.
• Ability to gain Metropolitan Police Service NPPV2 security clearance.
• Willingness to gain MOD DV clearance.

Responsibilities:

• Work with customers and suppliers to execute Systems Engineering activities across the full lifecycle, with a focus on low-level system design.
• Maintain the Requirements Verification Traceability Matrix (RVTM).
• Update artefacts, including designs and documents, so they map to the RVTM.
• Work with testers to review requirements against test cases and acceptance criteria, identify gaps, propose solutions, and manage exceptions and mitigations.
• Define and update acceptance criteria and gain agreement from customers and stakeholders.
• Support the definition and design of interfaces.
• Version control all relevant Systems Engineering artefacts and agreed interfaces.
• Document and manage programme V-model activities and artefacts while liaising with delivery team leads.
• Collaborate with multidisciplinary teams to ensure seamless integration of hardware, software, and network components.
• Document data flow and data matrix views of a system.
• Contribute to the Systems Concept of Operations document through process definition and documentation.
• Track and present progress of deliverables and dependencies.
• Review and update the Systems Engineering Management Plan (SEMP) when needed.
• Document engineering management and governance processes.

Technologies:

• ArchiMate
• Flow
• Hardware
• Support
• Matrix
• Network
• Security
• UML
• AI
• Machine Learning

More:

We are Leidos, a growing company delivering innovative technology and solutions focused on safeguarding critical capabilities and transforming frontline services across the United Kingdom. Our work spans defence, healthcare, government, safety and security, and transportation. We offer meaningful and engaging careers, a collaborative culture, support for career goals, and a healthy work-life balance. Our reward package includes a contributory pension scheme, private medical insurance, 33 days annual leave including public and privilege holidays, flexible benefits, and flexi-time. The role is primarily home-based, with expected time in our Farnborough office, attendance at programme increment planning sessions in Farnborough or Glasgow, and occasional customer site visits in Greater London. We are committed to diversity, inclusion, flexibility, and helping our people grow through technical academies, career rotations, and development plans.

last updated 39 week of 2026