Senior Software Engineer (DevSecOps) - INSIDE IR35 - Hybrid 2/3 days a week on site - circa £550 per day
We are looking for an experienced Senior Software Engineer to work on a major programme for a client and you will need to be willing to work up to 2/3 days a week onsite
Key responsibilities
Development process
* Ship small, frequent changes by default: adopt trunk-based development, use feature flags, and enable automated approvals for low risk paths; visualise and act on DORA/flow constraints with the team.
* Treat the Golden Path as the default for new and refactored services; surface policy drift and contribute fixes/templates that improve speed and consistency.
* Lead squad adoption of Golden Path patterns; identify and fix policy drift in pipelines or IaC modules.
* Troubleshoot and remove flow bottlenecks caused by pipelines, environments, data provisioning, or test flakiness.
* Ensure services are instrumented with deployment annotations, golden signals, SLOs, and audit-ready evidence.
* Design for ephemeral/data-ready environments (idempotent data, test hooks, parity enforcement).
* Embed contract/performance/resilience/security tests in CI; elevate squad testability patterns.
Skills (Technical & Delivery)
1. Strong in at least one modern language/runtime and cloud native design; solid understanding of API, events, resilience, and...