Python Developer (DevOps Experience Mandatory)

Salary: £25,000 - 50,000 per year

Requirements:

• 7+ years of engineering experience, including 3+ years in a CI/CD platform or DevSecOps role.
• Strong Jenkins and Groovy shared library expertise.
• Advanced Python development experience, including best coding practices, APIs, JSON/YAML processing, and tooling scripts; key projects should be demonstrated in the CV.
• Deep knowledge of Maven, NPM, and Python packaging, with exposure to Helm, Terraform, and container image metadata.
• Experience with supply-chain security concepts such as SLSA, CycloneDX SBOMs, and digests.
• Experience with SonarQube, Sonatype IQ, and container and SAST scanning.
• Proven performance tuning experience, including caching, parallelization, and dependency pruning.
• Compliance awareness.
• Nice-to-have: artifact signing and attestations experience, including cosign and OCI.
• Nice-to-have: Terraform module and Helm chart publishing patterns.
• Nice-to-have: GitOps or release automation experience.
• Nice-to-have: GCP or AWS cloud experience.

Responsibilities:

• We design and maintain Groovy pipeline steps for build, test, package, scan, and deploy workflows.
• We extend Python tooling for SLSA provenance, SBOM generation, hash and digest accuracy, and security scan aggregation.
• We optimize pipeline performance through parallel builds, caching, scope-reduced BOMs, and dependency prefetch.
• We ensure artifact integrity through correct SHA1 and SHA256 mapping, reproducible inputs, and evidence modeling.
• We refactor legacy scripts by removing global state, consolidating hashing, and standardizing templates.
• We document ci-config.yaml standards and usage patterns.
• We mentor engineers on secure pipeline development and supply-chain practices.
• We troubleshoot and prevent pipeline incidents.

Technologies:

• AWS
• CI/CD
• Cloud
• DevSecOps
• GCP
• GitOps
• Groovy
• Helm
• JSON
• Java
• Jenkins
• Maven
• NPM
• Python
• Security
• Terraform
• NodeJS

More:

We own and evolve our Jenkins Shared Library, powering multi-language builds across Java/Maven, Node/NPM, Python, Helm, Terraform, and containers. We deliver fast, secure, provenance-rich pipelines with SLSA, SBOMs, and digests, and we strengthen supply-chain integrity across teams. GCS is acting as an Employment Business in relation to this vacancy.

last updated 39 week of 2026