Staff Software Engineer (.NET)

Chainguard

1d • Remote

About The Position

Chainguard is seeking a Staff Software Engineer for its Libraries organization, with a focus on the .NET ecosystem. This role is responsible for contributing to the technical direction of Chainguard's .NET libraries factory, which involves creating secure, reliable, and automated build and packaging pipelines for high-quality .NET artifacts. This is an infrastructure-focused position where the engineer will build systems and tooling used by many other engineers, directly supporting the Chainguard Libraries product line.

Requirements

• 8+ years working in the .NET ecosystem (C# or similar) on build systems, packaging, or developer tooling, ideally on platform/infra or ecosystem teams.
• Proven experience building and owning MSBuild extensions, NuGet tooling, CI/CD automation, or internal frameworks/tools for .NET libraries or services.
• Deep familiarity with building, publishing and consuming in the .NET ecosystem (multi-project/solution builds, dependency graphs, publishing to registries).
• Strong background in orchestrating large codebases or mono-repos and fixing dependency and build failures in production environments.
• Proficiency in Go for build orchestration tooling, CLIs, and automation — the team's primary language for pipeline and glue code.
• Experience with Terraform for managing infrastructure as code.
• Demonstrated ability to debug toolchain, compiler, and packaging issues at scale and drive them to resolution.
• Experience with cloud-native environments: containers (Docker/OCI, Kubernetes), public cloud (GCP, AWS, or Azure), and modern CI/CD systems (e.g., GitHub Actions, Argo, Tekton, or similar).
• Background in DevOps, SRE, or platform engineering — experience at the intersection of build systems and production reliability is a core expectation, not a nice-to-have.
• Excellent communication in a remote, distributed setup. Comfortable working across product, infra, and security, and mentoring peers at senior levels.
• A staff-level ownership mindset: you define direction, own critical outcomes, and thrive in an early, high-impact area where engineers help set the roadmap.
• Systems thinking mindset: comfortable directing, reviewing, and validating software regardless of how it's produced — including AI-assisted workflows — and owning outcomes end-to-end.

Nice To Haves

• Open source contributions in the .NET ecosystem (libraries, build tools, packaging, or related infrastructure).
• Experience building and distributing widely used libraries, SDKs, or runtimes.
• Familiarity with software supply chain security: SLSA, SBOMs, sigstore, provenance, attestations.
• Exposure to Linux distribution and packaging ecosystems or reproducible build systems (e.g., Alpine, Wolfi, Debian, Bazel, Nix).

Responsibilities

• Own architecture and direction for .NET ecosystem infrastructure, enabling secure, reproducible build, test, and distribution workflows for .NET libraries and SDKs.
• Design and maintain automation for building, updating, validating, and publishing .NET artifacts (NuGet packages), including vulnerability scanning, remediation, SBOMs, and provenance.
• Build internal developer tools (dotnet build and MSBuild tasks/targets, NuGet tooling, CLIs, code generators) that improve how we build and maintain .NET packages at scale.
• Integrate deeply with dotnet projects, NuGet, and artifact repositories, solving complex dependency and version-resolution issues in large codebases and mono-repos.
• Collaborate with product and engineering leadership to shape the .NET libraries roadmap and deliver on key business outcomes for Chainguard Libraries.
• Mentor and unblock other engineers through design reviews, documentation, and hands-on debugging of build and infrastructure issues.
• Partner with Platform, Delivery, Sustaining, and Security to ensure .NET pipelines and services meet reliability and security expectations.

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.
• Stock options upon hire and promotion, with the ability to participate in secondary offerings and 10 years to exercise options.
• 100% Covered Health Insurance: Health, vision and dental insurance premiums covered for employee and dependents.
• Flexible Time Off: Take the time you need to recharge and reset.
• 18 Weeks Paid Parental Leave: 18 weeks for birthing parents and 12 weeks for non-birthing parents.

What This Job Offers

• Job Type: Full-time
• Career Level: Senior
• Education Level: No Education Listed