Description The successful candidate will have a full understanding of the principles of systems engineering, will have prior experience as a Systems Engineer on a major programme involving accepting and integrating deliveries from suppliers. Using their experience in Systems Engineering, the successful candidate will be responsible for working with customers and suppliers to execute Systems Engineering activities across the full lifecycle, with specific focus on Model Based Systems Engineering. Specific duties may include: Technical and/or team leading of significant portion of engineering activity of assigned programme. Defining and leading the engineering life cycle and ensure that all Engineering tasks in the defined scope of work are delivered appropriately Working with operational stakeholders, technology suppliers and architects to define system of system level requirements Allocation of requirements to lower level services, conducting technical derivation analysis as required Modelling of functional requirements and scenarios inside of MBSE and architectural framework approaches Capturing of non-functional requirements within DOORS Managing compliance assessments at systems of systems, system and lower level systems & services levels Overseeing development of lower level designs corresponding to owned areas of the system Producing detailed engineering artefacts such as: Detailed Designs Service Management Designs Designs for onboarding service applications onto virtualized infrastructures Compliance Reports Security, HF and Safety artefacts Capacity and Throughput analysis Delivering milestone technical reviews and the associated work product deliverables Defining architectural solutions comprising multiple underpinning COTS and bespoke designs and driving the competitive selection of these technologies Creation of on-boarding designs Definition of user interfaces Modelling operational, business and system behaviours within architectural views Conducting cost/benefit/technical trade studies Required Skills: Strong experience with architecture modelling tools (e.g. Sparx Enterprise Architect, MagicDraw Cameo) Strong experience with Architecture Modelling Frameworks and Languages (e.g. TOGAF, MODAF, NAF, SysML, Archimate) Success in working within large-scale, mission critical and complex integration programmes Ability to work with a number of stakeholders and suppliers, working across organizational boundaries as appropriate Experience of developing system behavioural diagrams, modelling interfaces and developing models to encapsulate functional requirements Demonstrable successes within the System Engineering environment Excellent customer facing skills, including being able to ingest large volumes of requirements and information developing clear understanding of customer hot-buttons and needs Demonstrable knowledge and cognisance of adjacent disciplines, including programme management, customer relationship management, supplier management and service management In-depth experience of conducting detailed systems engineering trade solutions to assess options & feasibility, and define optimal solutions Strong knowledge of requirements and user scenario development in both text based and model based approaches Understanding designing / delivering systems in a Virtualised Environment Experience of working with Service Oriented Architectures Desired Skills: ITIL including Service Management Roles & Processes Knowledge of Air Traffic Management or other safety related systems Experience of service management, assurance and regulation requirements and how they apply across functional boundaries Willingness to offer fresh, innovative ideas and/or unconventional approaches Ability to deliver clear messages through dialogue, written work and formal presentation What do we do for you? 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. 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 plan 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 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: £47,600.00-£61,000.00 The 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. About Leidos Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $16.7 billion for the fiscal year ended January 3, 2025. For more information, visit www.Leidos.com. Pay and Benefits Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available at www.leidos.com/careers/pay-benefits. Securing Your Data Beware of fake employment opportunities using Leidos’ name. Leidos will never ask you to provide payment-related information during any part of the employment application process (i.e., ask you for money), nor will Leidos ever advance money as part of the hiring process (i.e., send you a check or money order before doing any work). Further, Leidos will only communicate with you through emails that are generated by the Leidos.com automated system – never from free commercial services (e.g., Gmail, Yahoo, Hotmail) or via WhatsApp, Telegram, etc. If you received an email purporting to be from Leidos that asks for payment-related information or any other personal information (e.g., about you or your previous employer), and you are concerned about its legitimacy, please make us aware immediately by emailing us at LeidosCareersFraud@leidos.com. If you believe you are the victim of a scam, contact your local law enforcement and report the incident to the U.S. Federal Trade Commission. Commitment to Non-Discrimination All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.