Software Engineer

Software/ Infrastructure Platform Engineer — UK National Security

London (Hybrid) SC or DV Clearance (Must be active/valid) Full-time

UK SC clearance required (held or eligible).

Up to £115k + Bonus & Benefits and Equity

On-call rotation roughly every 5–6 weeks, run from a secure facility.

THE ROLE

• Build and operate high-performance, scalable services powering large-scale data platforms for UK government national-security deployments.
• Own production reliability end-to-end: monitoring, alerting, configuration management, upgrades.
• Deploy new products into production and lead migrations onto newer infrastructure, including into air-gapped estates via an in-house continuous-delivery engine.
• Eliminate operational toil with automation, using data platforms and LLM/AI tooling to build novel systems.
• On-call rotation roughly every 5–6 weeks, run from a secure facility.

THE IDEAL PROFILE

• 1–5 years in infrastructure, SRE, or platform engineering, with a genuine software-engineering core.
• Built Microservices
• Build production systems, not just operate them.
• UK SC clearance held or clearly eligible (UK nationality or long-term residency). No visa sponsorship.
• Background in defence tech or big-tech/major-cloud SRE.
• Bonus: drones, self-driving, robotics, or edge systems.

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