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Software Engineer, Product Security

Spire

$171,000 - $202,500
Dec 5, 2025
Boulder, CO, US
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Spire is looking to shift security left in their development processes by implementing automated security controls and ensuring compliance with security standards like NIST 800-171/CMMC.

Requirements

  • Proficiency in container security (Docker/Kubernetes), security tools (e.g., Trivy, Snyk, Falco, OPA), and programming languages for tooling (Python, Rust).
  • Understanding of modern attacks and defenses.
  • Knowledge of common threats (e.g., injection, lateral movement), controls (NIST 800-53 mappings), DevSecOps practices, SBOMs, zero-trust principles, and SIEM-integrated logging.
  • Experience with secure cloud systems (AWS), CI/CD security, and compliance efforts (e.g., NIST, CMMC, or FedRAMp).
  • Familiarity with AWS security services (e.g., GuardDuty, Security Hub, Config) and IaC tools (Terraform).
  • Experience with embedded or satellite security (e.g., secure boot, over-the-air updates).
  • Contributions to open-source security projects.

Responsibilities

  • Assist in integrating security automation into pipelines (e.g., GitHub Actions/ArgoCD for SAST/DAST/SCA, SBOM generation, and vulnerability scanning).
  • Contribute to evolving standard libraries/infra for authn/authz, logging, and other runtime security features, including testing and updates.
  • Hands-on support for implementing controls (e.g., encryption, secure configurations, monitoring) to meet/exceed CMMC Level 2 requirements in AC, IA, SC, and SI families, building on our ISO 27001 foundation.
  • Participate in security architecture reviews, code audits, and threat modeling; help identify and remediate issues like API vulnerabilities or supply chain risks.
  • Engage in code reviews, pair programming sessions, and tooling development to advance secure practices; provide peer support within the security engineering team.
  • Embedding automated controls such as SBOMs and vulnerability scanning into CI/CD pipelines
  • Maintaining and updating our internal shared libraries and infrastructure for authentication, authorization, and logging

Other

  • 5+ years in software or security engineering, with at least 3+ years in security-focused roles.
  • Ability to collaborate constructively with internal teams and contribute to external security discussions as needed.
  • Proven ability to work in small, agile teams and learn from senior mentors.
  • Experience in regulated industries (defense/aerospace); clearance for sensitive data handling.
  • Work a minimum of three days per week in the office.