Location: Crawley, United Kingdom Thales is a global technology leader with more than 83,000 employees on five continents. With over 7,500 people in the UK, operating across defence, space, aerospace, and digital security, we help build a future we can all trust. Thales supports the security and stability of our nation by providing extraordinary technology to our customers, as well as delivering social value to the UK with our products and services. Our work is organised into two portfolios that guide strategic growth in Secure Communication and Protection. The Land Communications team focuses on tactical radio and electronic countermeasures for UK and global markets. Our Security and Naval Communications team draws on over 100 years of partnership with the Royal Navy, delivering an evolving portfolio of integrated voice and data systems that support resilient, mission-ready communication. We are looking for a Senior Principal Systems Engineer to lead the delivery of complex, large-scale naval communications programmes for UK and international customers. This is a high-impact role at the forefront of advanced defence technology, combining technical leadership, systems thinking, and programme delivery across the full engineering lifecycle. Location: Crawley, Reading and Fareham The Role: You will play a critical role in defining, developing, and delivering end-to-end systems solutions for naval communications. Working across bids and live programmes, you''ll lead ..... full job details .....