Senior Model Based Systems Engineer Contract - Permanent Hours - Fulltime 37 hrs Location: Harlow, Essex #FWS Joining our team means being part of an organisation that shapes the future of national security whilst investing in your growth and personal development. We provide a collaborative environment, abundant opportunities for professional development, and a profound sense of purpose in what we do. Together, we are not just advancing technology; we're building a community committed to safeguarding a safer and more connected world. Summary of Role: This is an exciting opportunity for a Senior Model Based Systems Engineer to work within the Raytheon Assured Position Navigation and Timing (APNT) Engineering team, part of the wider Systems & Products business unit, to produce Digital GPS Anti-Jam Systems and Alternative Navigation Solutions for the military market. The role will provide support across Raytheon's range of APNT products, providing Systems Engineering expertise across the product lifecycle, from requirements capture, analysis, design through to testing, qualification, and certification activities. Main Duties: The role will provide support to the System Design Authority and Systems Engineering Team Leaders with the development and management of project requirements, generation of technical documentation. Systems Analysis and Design work and participation in technical design reviews. Further, supporting the Systems Team in the generation of bid proposal material and submission of bids in response to customer requests. Primary responsibilities include initial system analysis, including scope definition, problem analysis, requirements gathering and development. Design and develop architecture and data models including data gathering using SysML artefacts e.g. use case, activity, sequence, state and class diagrams. The role will involve working in a highly technical environment, supporting the team as well as working autonomously, laboratory work will be involved for product testing. Taking on complex challenges and producing a solution that follows company process in a timely manner is an essential part of the role. A successful candidate will be comfortable integrating into a large team to accomplish their goals. Candidate Requirements: Essential Experience across the systems engineering lifecycle from requirements through to certification Experience with SysML or UML in a Systems Engineering environment Experience with generation of technical documentation (internal and for customers) Understanding of policies, practises and procedures, and the ability to communicate these to their team Ability to work in a team and perform to project directives Ability to work autonomously, with limited oversight from Team Leaders and Management Degree in STEM (Science, Technology, Electrical Engineering, Mathematics) or similar Eligible or current holder of SC security clearance Desirable Knowledge of GNSS systems and receiver characteristics Experience with RF (including Antennas) and Digital Hardware design and test Experience in verification & validation, including environmental and EMC testing Experience with Enterprise Architect or similar integrated modelling platform. Experience with Simulink for design analysis and test of system and software architectures. Experience with MATLAB for data analysis, algorithm development and model creation. Experience with IBM Rational DOORS toolset Experience with configuration management systems Benefits Competitive salaries. 25 days holiday + statutory public holidays, plus opportunity to buy and sell up to 5 days (37hr) Contributory Pension Scheme (up to 10.5% company contribution) Company bonus scheme (discretionary). 6 times salary 'Life Assurance' with pension. Flexible Benefits scheme with extensive salary sacrifice schemes, including Health Cashplan, Dental, and Cycle to Work amongst others. Enhanced sick pay. Enhanced family friendly policies including enhanced maternity, paternity & shared parental leave. Car / Car allowance (dependant on grade/ role) Private Medical Insurance (dependant on grade) Work Culture 37hr working week, although hours may vary depending on role, job requirement or site-specific arrangements. Early 1.30pm finish Friday, start your weekend early! Remote, hybrid and site based working opportunities, dependant on your needs and the requirements of the role. A grownup flexible working culture that is output, not time spent at desk, focussed. More formal flexible working arrangements can also be requested and assessed subject to the role. Please enquire or highlight any request to our Talent Acquisition team to explore the flexible working possibilities. Up to 5 paid days volunteering each year. Raytheon UK is a landed company and part of the wider RTX organisation. Headquartered in Arlington, Virginia, USA, but with over 180,000 employees globally across every continent, RTX provides advanced systems and services for commercial, military and government customers worldwide and comprises three industry-leading businesses - Collins Aerospace Systems, Pratt & Whitney, and Raytheon. Diversity, Equity & Inclusion At Raytheon UK, we are committed to fostering a workplace that champions diversity, equity, and inclusion (DE&I) as fundamental pillars of our organisational culture. We believe that the diverse backgrounds, perspectives, and experiences of our employees are invaluable assets that drive innovation and excellence in everything we do. In embracing diversity, equity, and inclusion, Raytheon UK strengthens its ability to deliver innovative solutions to complex challenges. We are proud to create a workplace where all individuals can thrive and contribute to the advancement of technology, security, and a better future for all. Our aim is for our employees to produce the best work of their lives so together we build a stronger, more inclusive future