Cyber Security Engineer

Responsibilities

• Manage, maintain, and optimize enterprise PKI services, including issuing, renewing, and revoking digital certificates
• Administer and integrate Hardware Security Modules (HSMs) to secure private key storage and cryptographic operations
• Design, implement, and troubleshoot certificate chains, public/private key pairs, and intermediate/root CAs
• Build and maintain integrations with platforms such as Venafi and Microsoft Intune to enable automated certificate lifecycle management
• Support automation of certificate provisioning, renewal, and deployment processes across hybrid environments
• Collaborate with Security, Infrastructure, and Application teams to implement certificate best practices
• Maintain documentation of PKI architecture, processes, and integration patterns
• Participate in audits, compliance reviews, and security assessments as a PKI subject matter expert

Requirements

• 3–5 years of experience working with enterprise PKI environments
• Strong understanding of HSMs, certificate authorities, certificate chains, CRLs, and OCSP
• Experience with Venafi Trust Protection Platform, Microsoft Intune, or equivalent certificate automation platforms
• Hands-on experience with certificate lifecycle automation, APIs, and integrations
• Familiarity with Windows and Linux certificate stores, Active Directory Certificate Services (ADCS), and modern cloud PKI approaches
• Strong troubleshooting and problem-solving skills in PKI-related areas

Preferred Qualifications

• Experience with scripting or automation using PowerShell, Python, or Bash for PKI workflows
• Exposure to Zero Trust architectures and enterprise identity solutions
• Knowledge of security compliance standards such as NIST, PCI DSS, or ISO 27001

About the Company

Comcast brings together the best in media and technology, driving innovation to create the world's best entertainment and online experiences. As a Fortune 50 leader, we set the pace in a variety of innovative businesses and create career opportunities across a wide range of locations and disciplines.