Duration: contract to run until 30/11/2026
Rate: up to £529 p/d Umbrellainside IR35
Own and evolve our Jenkins Shared Library powering multi-language builds (Java/Maven, Node/NPM, Python, Helm, Terraform, containers). Deliver fast, secure, provenance-rich pipelines (SLSA, SBOM, digests) and strengthen supply chain integrity across teams.
Core Responsibilities
* Design and maintain Groovy pipeline steps (build, test, package, scan, deploy).
* Extend Python tooling for SLSA provenance, SBOM generation, hash/digest accuracy, and security scan aggregation (SonarQube, Sonatype IQ, SAST/Container).
* Optimize performance (parallel builds, caching, scope-reduced BOMs, dependency prefetch).
* Ensure artifact integrity (correct SHA1/SHA256 mapping, reproducible inputs, evidence modelling).
* Refactor legacy scripts (remove global state, consolidate hashing, standardize templates).
* Document ci-config.yaml standards and usage patterns.
* Mentor engineers on secure pipeline development and supply-chain practices. Troubleshoot and prevent pipeline incidents.
* 7+ years engineering; 3+ in CI/CD platform or DevSecOps.
* Strong Jenkins + Groovy shared library expertise.
* Advanced Python automation (JSON/YAML processing, tooling scripts).
* Deep Maven/NPM/Python packaging knowledge; exposure to Helm/Terraform and container image metadata.
* Experience with SonarQube, Sonatype IQ, container and SAST scanning.
* Proven performance tuning (caching, parallelization, dependency pruning). Compliance Awareness.
Nice-to-Have
* Terraform module and Helm chart publishing patterns.
* GitOps or release automation experience.
Soft Skills
* Ownership mindset, able to operate with minimal supervision.
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