Rubicon Consulting is currently recruiting for X4 Software Engineer (DV Cleared) on a 6 Month Contract, based in London. Role Summary We''re recruiting for a specialist security team working on critical national infrastructure projects high-impact, high-visibility work protecting UK organisations from cyber threats at scale. This role requires DV (Developed Vetting) clearance either currently held, or you meet the eligibility criteria (typically British citizen, 10 years continuous UK residency). Please only apply if this applies to you. The role You''ll join a software-defined, automation-first engineering environment building and running CI/CD platforms with security embedded from day one not bolted on afterwards. Think fast iteration, Infrastructure-as-Code as the default, and end-to-end ownership from build through to production. What you''ll be doing Owning and delivering platform capabilities across a highly-automated, CI/CD-driven environment Designing and evolving CI/CD pipelines for reliable, repeatable delivery across multiple teams Embedding Infrastructure-as-Code, eliminating manual provisioning and config drift Integrating security controls into engineering workflows secure by design, not by afterthought Supporting engineering teams with tooling, guidance and best practice Driving adoption of modern engineering practices CI, CD, automated testing, observability Contributing to technical standards and governance across teams Supporting incident response and ..... full job details .....