A practical roadmap for DevSecOps engineers — bake security into delivery. From foundations and secure coding to building secure CI/CD pipelines, threat modeling, securing the software supply chain, hardening containers and the cloud, applied cryptography, and running incident response.
DevSecOps sits at the intersection of development, operations, and security. You are expected to already build and ship software and to be comfortable with CI/CD and the cloud before you focus on securing them.
A reference to follow when implementing a real network project.
DevSecOps is the critical discipline of embedding automated security, cryptographic integrity, and compliance guardrails directly into the continuous integration and continuous deployment (CI/CD) lifecycle. Rather than treating security as an afterthought, DevSecOps ensures every build and container is verified before reaching production.
This roadmap covers the complete DevSecOps toolchain: pre-commit secret scanning, SAST static code analysis, Software Bill of Materials (SBOM) generation, container image signing with Cosign, Kubernetes admission policy enforcement with Kyverno, Terraform security audits, and keyless OIDC cloud authentication.
Master automated secret scanning (Gitleaks), Static Application Security Testing (Semgrep), Software Composition Analysis (SCA for npm/pip CVEs), and basic Docker scanning.
Key competencies:
Generate Software Bill of Materials (SBOM), sign and verify container images with Cosign, enforce Kubernetes admission policies (Kyverno), and audit Terraform with Checkov.
Key competencies:
Architect keyless CI/CD authentication via OIDC, conduct STRIDE threat modeling on distributed systems, lead vulnerability SLA remediation, and automate compliance audits.
Key competencies:
SAST (Static Application Security Testing) analyzes source code for vulnerabilities without executing it. DAST (Dynamic Application Security Testing) tests a running application externally for runtime vulnerabilities like SQL injection or CSRF. SCA (Software Composition Analysis) scans third-party open-source libraries and dependencies for known CVEs.
An SBOM (Software Bill of Materials) is a formal, machine-readable inventory of all third-party components, libraries, and hierarchical dependencies used in an application. When a new zero-day vulnerability (like Log4j) is discovered, an SBOM allows organizations to instantly pinpoint affected services.
Use OpenID Connect (OIDC). Instead of storing permanent AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY in GitHub Secrets, GitHub Actions exchanges a short-lived OIDC token directly with AWS IAM for a temporary role session.
DevSecOps achieves velocity by embedding automated security tests directly into developer workflows (fast pre-commit linters, non-blocking informational PR checks) and reserving blocking pipeline gates exclusively for Critical and High CVEs with actionable remediation advice.