Software Engineer - Defence Start - UP - London

Software Engineer | Defence Start-Up | London Software Engineer required for an early-stage defence technology start-up building mission-critical systems with real-world impact. You'll join a small, high-calibre engineering team designing, building, and deploying core technology. This is a deeply hands-on role for someone who wants significant ownership, technical depth, and end-to-end responsibility over the systems they build. You are

• 4+ years of professional Software Development experience
• Proficient in Python, TypeScript, Rust, Go, Java, or C++
• A true generalist - comfortable working across backend, infrastructure, data, and automation
• Most effective in fast-paced, high-autonomy environments
• Motivated by building technology with real-world impact
• Interested in defence, aerospace, or national security technology Nice to have
• Early-stage start-up experience
• Experience in robotics, embedded systems, ML, or real-time systems Why Join?
• Competitive salary + meaningful equity
• Significant influence over product and technical direction
• Work on challenging engineering problems with genuine real-world impact
• Build mission-critical technology within the defence sector
• Join a small, world-class team with significant autonomy and trust If you're a strong Software Engineer who wants to build challenging technology that actually matters, let's chat. Software Engineer | Defence Start-Up | London