Senior CORE Pracitioner
RTX (Raytheon)
- Location
- Glenrothes, Fife
- Work model
- On-Site
- Level
- Senior
- Posted
- Aug 24, 2026
About this role
Location: Glenrothes, Fife

 Position Role Type: Onsite At RTX, the world's largest aerospace and defence company, 185,000 great minds are united by purpose and inspired to make a difference solving the world’s most complex problems. With our three market leading businesses, world-class operations and investments in research and development, we offer capabilities and opportunity no one else can. Together, we push the boundaries of known science and find new ways to connect and protect our world. Raytheon brings the strength of more than 100 years of experience and renowned engineering expertise to meet the needs of today’s mission and stay ahead of tomorrow’s threat. We deliver solutions that help our nation and allies defend freedoms and deter aggression, creating a safer, more secure world. Join us and help shape the future of aerospace and defence. Raytheon UK At Raytheon UK, we take immense pride in being a leader in defence and aerospace technology. As an employer, we are dedicated to fuelling innovation, nurturing talent, and fostering a culture of excellence. 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: “Customer Oriented Results & Excellence (CORE for short), is the RTX operating system, focusing on the drivers of competitive excellence — our people and our work processes. Our CORE Operating System puts customers first by aligning priorities, accelerating integration, and delivering measurable value. Using a shared language and methodology, we strengthen how we work together and empower employees to improve their work—every day.” Based at our Livingston site, the Senior CORE Champion is a stand-alone role focussed on continuous improvement in the Manufacturing environment. Using CORE improvement methodologies and working alongside our CORE Lead, you will be a champion for creating a culture of continuous improvement with Manufacturing. Lead the development and continuous improvement of manufacturing processes, standards and systems to improve safety, people, quality, delivery and cost performance. Own and facilitate CORE improvement activities, applying structured problem solving and continuous improvement methodologies to eliminate waste, improve flow and increase operational performance. Partner with cross-functional teams to design, implement and sustain robust manufacturing processes, ensuring improvements are embedded through effective standards and governance. Coach and develop employees at all levels in CORE principles, problem solving and continuous improvement to build organisational capability and maturity. Use data, process observation and performance analysis to identify opportunities, prioritise improvement activity and deliver measurable business outcomes. Champion a culture of accountability, standardisation and continuous improvement through regular Gemba engagement, process confirmation and collaborative leadership. What your days will look like: Facilitating Value Stream Mapping workshops from planning and data collection through to future state design and implementation planning, helping teams transform how value flows to the customer. Leading CORE engagements to solve operational challenges, coach teams through structured problem solving and deliver sustainable improvements in manufacturing performance. Spending time on the shop floor coaching, observing work, verifying standards through Process Confirmation and supporting teams to identify and eliminate barriers to performance. Developing and maintaining