Principal Software Engineer HMI and Cyber Working Pattern: On-site, 5 days per week (due to workload classification) Security Clearance: British Citizen or Dual UK National with British citizenship The Opportunity They are looking for passionate, highly skilled Principal Software Engineers to join thier HMI and Cyber team, developing the next generation of laser defence capability for the Royal Navy. You ll take a technical lead role across the full software development lifecycle, delivering complex, safety- and security-critical solutions while mentoring and supporting engineers within your team. The company is committed to supporting career development while maintaining a healthy work/life balance. What they are looking for Strong C++ software development expertise Proven experience delivering software on complex systems End-to-end SDLC knowledge, particularly requirements and design Experience working with internal and external stakeholders Ability to mentor and develop junior engineers Collaborative mindset with strong communication skills Bonus (not essential): Windows/Linux OS lockdown, software security and safety, HMI development, automated testing. Why Apply? Join us on this journey of groundbreaking technology, as this continues to be a boundary pushing weapon system development programme, that has significant industry and customer engagement! What Next? Don t miss your chance to join this excellent company applications close soon! Click Apply Now t