Senior Product Security Engineer - Chainguard

Chainguard is the trusted source for open source. By delivering hardened, secure, and production-ready builds of all the open source software engineers and AI agents rely on, Chainguard helps organizations build faster, stay compliant, and eliminate risk. Our customers include Fortune 500 enterprises and global industry leaders, including Anduril, Canva, Fortinet, Hewlett Packard Enterprise, OpenAI, Snap Inc., and Snowflake.

The Role in a Nutshell

You are a deeply technical engineer who gets restless when pipelines aren't locked down. You care about shipping secure software! At Chainguard, you won't be a gate at the end of the process; you'll be embedded in it.

What You'll Do

Build & Harden Secure Pipelines

• Design, build, and maintain secure CI/CD pipelines with security gates that catch issues before they reach production.
• Systematically, consistently, and automatically capture the risk exposure of Chainguard's products.
• Implement and enforce software supply chain security controls: signed artifacts, SBOMs, provenance attestation (SLSA, Sigstore / Cosign).
• Proactively identify emerging customer security needs and build solutions to meet these.

Cloud-Native Product Hardening

• Lead security architecture reviews and threat models for Kubernetes-based workloads running on GCP and AWS.
• Harden container images, Kubernetes cluster configurations, and cloud IAM postures — minimising attack surface across our product stack.
• Define and drive adoption of baseline security standards: pod security standards, network policies, workload identity, secrets management.
• Evaluate and operationalise CNAPP / CSPM tooling to maintain continuous visibility into cloud-native risk.

What We're Looking For

Required

• 5+ years in software engineering, security engineering, or a combined role with meaningful hands-on security responsibility throughout.
• Strong proficiency in Go or Python, with the ability to write, review, and debug production-quality code.
• Deep, hands-on experience with Kubernetes in production (cluster hardening, RBAC, network policies, admission controllers).
• Practical expertise with GCP and/or AWS: IAM, workload identity, secrets management, security services (e.g., GCP Security Command Center, AWS Security Hub).
• Proven track record designing and securing CI/CD pipelines (GitHub Actions, Cloud Build, Tekton, or similar).
• Fluency with container security: image scanning, distroless/minimal base images, runtime security.
• Experience with software supply chain security tooling and frameworks (Sigstore, SLSA, SBOM generation).
• Solid understanding of OWASP, NIST, and cloud security frameworks and how to apply them pragmatically.

Nice to Have

• Familiarity with Chainguard Images or other minimal/hardened container base image ecosystems.
• Experience with policy-as-code tools (OPA, Kyverno, Conftest).
• Contributions to open source security projects.
• Background in security research or offensive security (bug bounty, CTF, penetration testing).

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.
• Equity: Receive stock options upon hire and promotion, secondary offering participation, and 10 years to exercise your options.
• 100% Covered Health Insurance: 100% coverage for health, vision, and dental insurance premiums for you and your dependents.
• Flexible Time Off: Unlimited PTO to recharge and reset.
• Paid Parental Leave: 18 weeks for birthing parents and 12 weeks for non-birthing parents.