Location: Bristol, On-site, 5 days per week (due to project classification)
Salary: Up to £64,000 + bonus & excellent benefits
Clearance: British Citizen or Dual UK National with British citizenship
Copello are working with a leading defence technology partner seeking a Principal Software Engineer to join their Human Machine Interface (HMI) and Cyber team, developing cutting-edge laser defence systems for the Royal Navy.
The Role
You’ll take a leading role in the technical delivery of complex software solutions, mentoring junior engineers and ensuring high standards across design, implementation, and integration.
What You’ll Bring
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Strong proficiency in C++
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Proven experience delivering complex software systems end-to-end
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Solid understanding of the software development lifecycle
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Excellent problem-solving, communication, and mentoring skills
Desirable experience: OS lockdown, software security, HMI development, or automated testing.
Benefits Include
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Up to £2,500 annual bonus (performance-based)
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Pension up to 14% combined contribution
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Flexi leave (up to 15 extra days)
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Enhanced parental leave
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Paid overtime and flexible working arrangements
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Excellent on-site facilities including subsidised meals and free parking
If you’re a passionate, analytical engineer who thrives on solving complex challenges - we’d love to hear from you