Senior System Engineer
Confirmed on the employer's own hiring board on Nov 7, 2026. First seen by Alion on Nov 2, 2026. Leidos scores B on the Alion truth index.
Senior Systems Engineer
UNLEASH YOUR POTENTIAL
We are in search of two Systems Engineers for our Leidos engineering capability. The successful Systems Engineers will have a full understanding of the principles of systems engineering, will have prior experience as a Systems Engineer involving accepting and integrating software products from suppliers.
Everything we do is built on a commitment to do the right thing for our customers, our people and our community. Our mission and our values guide the way we do business. The foundations of our Leidos culture are our Values, Beliefs and Expectations by which we select, recognise and reward employees. They create the environment that drives us toward our mission.
Are you ready for your next challenge?
Using your experience in Systems Engineering, you will be responsible for working with customers and suppliers to execute Systems Engineering activities across the full lifecycle, with a focus on the low level system design.
Your role and responsibilities:
Maintain Requirements Verification Traceability Matrix(RVTM).
Update artefacts (designs and documents) so that they map to RVTM.
Work with Testers to Review Requirements against Test cases/acceptance criteria, identify gaps, propose solutions and manage exceptions/mitigations.
Define and update acceptance criteria and get agreement from customer/stakeholders.
Support the definition and design of interfaces.
Version Control all relevant SE 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 Systems Concept of Operations Document through process definition and documentation.
Track and present progress of deliverables and dependencies
Review and Update Systems Engineering Management Plan(SEMP) when needed.
Document engineering management/governance processes.
Basic Qualifications:
Proven track record with a minimum or 3 years’ Experience in Systems Engineering role for IT/software systems.
Familiarity in working within at least Systems Engineering Frameworks eg ICOSE, NAF, DODAF, MODAF, 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 ability to work with minimal supervision.
Preferred Qualifications:
Bachelor’s 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 (e.g., SysML, UML) and enterprise design software/system modelling (eg Cameo, Archimate).
Security Clearance/Other:
Ability to gain Metropolitan Police Service NPPV2 security clearance (essential).
Willingness to gain MOD DV (advantageous)
Work can be done from Home Location
Expected to be in the Farnborough office 2 days per fortnight.
Expected to attend Programme Increment planning 5 Days every 3 months in Leidos Office (Farnborough/Glasgow) Ability to attend customer location (Greater London) when needed. Typically, 2 days per month.
Are you ready to make an impact? Begin your journey of a flourishing and meaningful career, share your CV with us today!
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
Commitment to Diversity:
We welcome applications from every part of the community and are committed to a truly diverse and inclusive culture. We foster a sense of belonging, welcoming all perspectives and contributions, and providing equal access to opportunities and resources for everyone. If you have a disability or need any reasonable adjustments during the application and selection stages please let us know, and we will respond in a way that best fits your needs.
Who We Are:
Leidos UK & EUROPE - we work to make the world safer, healthier, and more efficient through technology, engineering and science.
Leidos is a growing company delivering innovative technology and solutions focused on safeguarding critical capabilities and transformation in frontline services, our work in the United Kingdom includes addressing some of the most complex problems in defence, healthcare, government, safety and security, and transportation.
What Makes Us Different:
Purpose: you can use your passion and abilities at Leidos to keep the people you care about safe. We are at the forefront of machine learning, AI, cyber security and solutions. Using your skills in the technology frontline by helping to build a safer world. You can inspire change.
Collaboration: having flexibility to do your job is one of our core benefits, enabling you to become part of our extraordinary team. We have been empowering our people to work flexibly for years. Whether you work from home, the office or on customer sites, we will give you the digital tools and the flexibility to work smarter and align your needs and ours.
People: Leidos empowers people from every background to be themselves and gives you the tools to learn new skills by enabling growth whilst developing. We believe that extraordinary people need opportunities to grow, to be inspired and to inspire others. At Leidos, we invest in technical academies, career rotations and a career development plans that enhance your future.
If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo - because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 - and moving faster than anyone else dares.
Original Posting:
For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above.
Pay Range:
£61,500.00-£78,800.00The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law.