Staff Software Engineer (Libraries- Platform) United Kingdom - Remote

Chainguard’s Libraries organization builds a secure, reliable factory that continuously builds, verifies, and serves open-source libraries to customers and internal teams across multiple ecosystems. You’ll join as a Staff Software Engineer on the Libraries Platform team, leading the architecture and implementation of the platform that powers this factory: the services, APIs, and automation that make our libraries reproducible, trustworthy, and always up to date. This is an infrastructure-centric, platform role. You’ll work on shared services, build and packaging pipelines, and a package index that serves external customers and internal ecosystem teams. You’ll help invent and operate the platform that:

• Serves packages to customers at scale
• Automates CVE remediation and verification workflows

What you’ll do

• Design and maintain automation for artifact creation, updates, and verification, including vulnerability scanning, remediation workflows, SBOM and provenance generation, and policy enforcement across our library catalog.
• Build and operate shared platform services such as package indexes, registry mirrors, metadata services, and orchestration tooling that serve both external customers and internal ecosystem teams.
• Develop internal developer tools and CLIs (often in Go) that improve how we build, test, and ship libraries at scale, including integration with build systems and CI/CD for multiple ecosystems.
• Drive reliability, scalability, and observability for the Libraries platform: define SLOs, build monitoring and alerting, and lead incident response and post-incident improvements.
• Solve complex dependency and build issues in production environments, from toolchain and compiler problems to CI/CD flakiness and registry/package index edge cases.
• Mentor and unblock other engineers through design reviews, documentation, and hands-on debugging, helping to “code culture” into how we build and run our libraries platform.

What we’re looking for

• 8+ years designing, building, and operating infrastructure for language ecosystems or developer platforms, such as build systems, package registries, or CI/CD for widely used libraries or services.
• Strong proficiency in Go (Golang) or strong readiness to ramp quickly.
• Proven track record building and owning developer tooling and automation (plugins, CLIs, code generators, or custom pipelines) that improve how engineers build and ship software at scale.
• Strong background in CI/CD, cloud-native infrastructure, and IaC: containers (Docker/OCI, Kubernetes), public cloud (GCP, AWS, Azure), and tools like Terraform and GitHub Actions/Argo/Tekton (or equivalents).
• Demonstrated ability to debug and resolve complex toolchain, compiler, packaging, and infrastructure failures in production, and to drive those issues to root cause and lasting fixes.
• Comfortable working across SRE / platform / DevOps style responsibilities, including reliability, observability, and performance tuning for critical services and pipelines.
• Excellent communication in a remote, distributed environment, with a bias toward documentation, clarity, and collaboration across product, infra, and security teams.
• A staff-level ownership mindset: you set technical direction, own critical outcomes, and are comfortable in an early, high-impact area where engineers help shape both the roadmap and the culture.

Nice to have

• Experience with software supply chain security: SLSA, SBOMs, sigstore, provenance, attestations, or secure-by-default packaging practices.
• Background with Linux distributions, packaging, and reproducible build systems (e.g., Alpine, Wolfi, Debian Bazel, CMake, Ninja).
• Familiarity with AI/ML packaging and infrastructure building native Python libraries and ML frameworks (e.g., PyTorch, TensorFlow) and deploying them in cloud/Kubernetes environments.
• Prior experience in SRE, platform engineering, or DevOps roles where you owned infrastructure for developer productivity, CI/CD, or large language-ecosystem codebases.

About Us

Chainguard is the secure foundation for software development and deployment. By providing guarded open source software, built from source and updated continuously, Chainguard helps organizations eliminate threats in their software supply chains. Founded by industry leaders in open source software, security, and cloud-native development, Chainguard has built the largest library of open source software that is secure by default. Our mission is to be the safe source for open source.

Values and benefits

• Flexible & Remote-First Culture: Work remotely with team meetup opportunities, bi-annual destination summits, and a monthly stipend for coworking spaces, phone and internet costs.
• Our Approach to Equity: Stock options on hire and promotion, plus options in secondary offerings and 10-year exercise window.
• 100% Covered Health Insurance: 100% of health, vision and dental premiums for you and dependents.
• ∞ Flexible Time Off: Take the time you need to do your best work.
• 18 Weeks Paid Parental Leave: 18 weeks for birthing parents and 12 weeks for non-birthing parents, with flexible usage.

EEO and application notes

Chainguard is an equal opportunity employer. We do not discriminate based on race, religion, color, national origin, sex (including pregnancy, childbirth, reproductive health decisions, or related medical conditions), sexual orientation, gender identity, gender expression, age, protected veteran status, disability status, genetic information, political views or activity, or other legally protected characteristics. We also consider qualified applicants with criminal histories where permitted by law. By submitting your application, you acknowledge that Chainguard will process your personal data in accordance with Chainguard’s Privacy Policy.