4 Hidden Routes to Senior UK IT & Software Engineering Roles

At the Lead, Staff, and Principal engineering tier, basic GitHub repositories containing toy apps or generic coding exercises carry no weight. Engineering executives who authorise £80,000–£110,000 salaries evaluate candidates on their ability to document complex systems, build consensus, and define standards across teams. Publishing public Request for Comments (RFC) documents and production-grade infrastructure blueprints gives you tangible proof of seniority.

An RFC is a structured proposal that outlines a technical problem, proposes a specific architectural solution, and analyses alternative options. Publishing one or two redacted or synthetic RFCs demonstrates clear communication, systems thinking, and technical maturity. Topics such as migrating from monolithic architectures to micro-frontends or implementing zero-trust service meshes with Istio provide concrete talking points during executive interviews.

Alongside written RFCs, build a reference infrastructure repository using Infrastructure as Code (IaC) tools like Terraform, OpenTofu, or Pulumi. Include automated CI/CD pipeline definitions using GitHub Actions or GitLab CI, along with security scanning integrations like Trivy or SonarQube, to prove your commitment to shift-left security and platform automation.

High-Impact Artefacts for Senior Applications

• Architecture RFCs: Public technical proposals demonstrating trade-off analysis and consensus building.
• Terraform / IaC Blueprints: Production-ready configurations illustrating multi-region cloud provisioning.
• Technical Whitepapers / Blog Posts: In-depth breakdowns of real-world post-mortems, performance tuning, or database optimisations.
• Open-Source Contributions: Meaningful pull requests to established developer tooling, libraries, or cloud-native projects.