Principal Software Engineer – Libraries Platform

Chainguard

Principal engineer shaping Chainguard’s secure open-source library platform. Automating CVE remediation and scaling builds across .NET, Go, and Rust ecosystems.

Posted 8/12/2026full-timeRemote • 🇬🇧 United KingdomLeadWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates extensive experience in designing and operating infrastructure for language ecosystems, with a strong focus on automation, CI/CD, and cloud-native technologies. Capable of leading technical direction and mentoring teams while ensuring reliability and security across diverse platforms.

Highest-signal resume keywords

12+ Years Infrastructure ExperienceStrong Proficiency In GoCI/CD And Infrastructure As CodeExperience With Docker And KubernetesPrincipal-Level Technical Direction

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

CVE Remediation AutomationPackage Indexing ArchitectureToolchain DiagnosisBuild OrchestrationMetadata Services

Soft Skills

Excellent Written CommunicationMentoring And Leadership

Tools & Technologies

DockerKubernetesTerraformGitHub ActionsArgo

Industry Keywords

.NET/NuGetGo/ModulesRust/CargoSoftware Supply Chain SecurityAI/ML Packaging

Tech Stack

Tools & technologies

CloudDockerGoKubernetesLinux.NETPyTorchRustTensorflowTerraform

About the role

Key responsibilities & impact

Own the technical strategy for scaling across multiple language ecosystems
Define ecosystem-agnostic and extensible architecture for package indexing, build orchestration, and metadata services
Drive end-to-end CVE remediation automation from detection through verified release
Lead agentic/AI-driven security patch generation and define validation, testing, provenance, and human-checkpoint guardrails
Set platform-wide technical direction across package indexes, build and packaging pipelines, registry mirrors, and orchestration tooling
Make build-versus-buy and sequencing decisions for .NET, Go, and Rust ecosystem support
Partner with Ecosystem, Platform, Delivery, Sustaining, and Security teams on the platform roadmap
Mentor Staff and Senior Engineers, lead design reviews, and write documentation and RFCs
Define SLOs and lead incident response and postmortems for major platform failures
Investigate toolchain, compiler, and dependency-resolution problems affecting pipeline reliability

Requirements

What you’ll need

12+ years designing, building, and operating infrastructure for language ecosystems or developer platforms
Principal-level scope setting technical direction across multiple teams
Direct experience standing up or significantly extending support for a language ecosystem
Ideally experience with .NET/NuGet, Go/modules, or Rust/Cargo
Strong proficiency in Go
Track record automating manual remediation workflows with appropriate human checkpoints
Deep experience with CI/CD, agentic pipelines, cloud-native infrastructure, and infrastructure as code
Experience with Docker/OCI, Kubernetes, Terraform, and GitHub Actions, Argo, Tekton, or equivalents
Experience running infrastructure at scale across heterogeneous ecosystems
Ability to diagnose and resolve toolchain, compiler, and packaging failures across multiple ecosystems
Excellent written communication in a remote, distributed environment
Principal ownership mindset and ability to make ecosystem-generalization decisions with incomplete information
Nice-to-have: software supply chain security knowledge including SLSA, SBOMs, sigstore, provenance, attestations, and secure-by-default packaging
Nice-to-have: experience with Linux distributions, packaging, and reproducible build systems including Alpine, Wolfi, Debian, Bazel, CMake, and Ninja
Nice-to-have: familiarity with AI/ML packaging and infrastructure including PyTorch and TensorFlow in cloud/Kubernetes environments
Nice-to-have: experience leading a platform through a major increase in automation maturity

Benefits

Comp & perks

Work remotely with team meetup opportunities
Bi-annual destination summits
Monthly stipend for coworking spaces, phone and internet costs
Stock options upon hire and promotion
Participation in secondary offerings
10 years to exercise stock options
100% covered health, vision, and dental insurance premiums for employee and dependents
Unlimited flexible time off
18 weeks paid parental leave for birthing parents
12 weeks paid parental leave for non-birthing parents
Flexible parental leave usage throughout the child's first year