Principal Software Engineer, Libraries Platform — Remote

Chainguard; United Kingdom; On-site; GBP 120,000 - 180,000; Full time

Benefits offered by this job

Remote-First Culture

Stock options

100% Health insurance

Flexible time off

Parental leave

Job summary

Chainguard is seeking a Principal Software Engineer for the Libraries Platform to design and scale a secure, automated factory that builds, verifies, and serves open-source libraries across ecosystems. You’ll lead automation, AI-assisted patching, and cross-team collaboration to expand support for .NET, Go, and Rust while ensuring reliability and security across platforms.

You will drive architectural decisions, mentor engineers, and define the roadmap that enables ecosystem teams to build on

Qualifications

• 12+ years designing, building, and operating infrastructure for language ecosystems or developer platforms with Principal-level scope.
• Experience onboarding new toolchains into an existing platform, ideally including .NET (NuGet), Go (modules), or Rust (Cargo).
• Strong proficiency in Go and cloud-native infrastructure, IaC, and CI/CD at scale.

Responsibilities

• Define multi-ecosystem architecture to onboard new languages without re-deriving core services.
• Lead end-to-end remediation automation and CI/CD improvements across ecosystems.
• Drive AI-driven patch strategies with safe guardrails and verification.
• Shape platform-wide direction for packaging, indexing, and orchestration tooling.
• Mentor senior engineers and contribute RFCs/docs to scale the platform.

Skills

Go

CI/CD

Docker

Kubernetes

Terraform

GitHub Actions

Argo

Tekton

Platform design

Automation

Tools

NuGet

Go modules

Cargo

Job description

Chainguard is seeking a Principal Software Engineer for the Libraries Platform to design and scale a secure, automated factory that builds, verifies, and serves open-source libraries across ecosystems. You’ll lead automation, AI-assisted patching, and cross-team collaboration to expand support for .NET, Go, and Rust while ensuring reliability and security across platforms.

You will drive architectural decisions, mentor engineers, and define the roadmap that enables ecosystem teams to build on