Senior Certificate Engineer (PKI / Active Directory)

Summary

We are seeking a highly skilled Senior Certificate Engineer to design, implement, and manage enterprise Public Key Infrastructure (PKI) solutions. This role will focus on Active Directory Certificate Services (AD CS), public certificate authority integrations, and end-to-end certificate lifecycle management across hybrid environments.

Role in Our Mission

PKI Architecture & Engineering

- Design and maintain enterprise PKI solutions, including offline root CAs, issuing CAs, and certificate policies - Lead PKI modernization efforts, including hybrid and cloud-integrated certificate services - Architect solutions that support high availability, scalability, and security compliance

Active Directory Integration

- Implement and manage Active Directory Certificate Services (AD CS) - Configure and maintain: - Certificate templates - Group Policy-based auto-enrollment - CRL distribution points (CDPs) and AIA locations - Integrate PKI with Active Directory, Azure AD, and hybrid identity environments

Public Certificate Authority Management

- Manage enterprise relationships and integrations with external/public CAs - Oversee procurement, issuance, renewal, and revocation of public SSL/TLS certificates - Integrate public CA services into automation workflows and enterprise platforms

Certificate Lifecycle Management

- Manage certificate lifecycle processes including: - Issuance - Renewal - Revocation - Expiration monitoring - Implement automation using tools such as: - PowerShell - ACME / EST / SCEP protocols - Certificate management platforms

Security & Compliance

- Ensure PKI solutions meet enterprise security policies and regulatory requirements (e.g., NIST, CIS, HIPAA, PCI) - Conduct risk assessments related to certificate usage and cryptographic standards - Maintain secure key management practices, including HSM integration where applicable

Operations & Troubleshooting

- Provide Tier 3 escalation support for PKI and certificate-related issues - Troubleshoot: - Authentication failures (TLS, smart card, etc.) - Certificate chain issues - Revocation and CRL distribution problems - Develop monitoring, alerting, and reporting for certificate health and usage

Automation & Innovation

- Develop and maintain automation scripts and workflows for certificate deployment and management - Integrate PKI processes with: - ServiceNow - Azure services - DevOps pipelines - Drive adoption of modern certificate management solutions and practices

Qualifications

- Bachelor’s degree in Computer Science, Information Technology, or related field (or equivalent experience) - 7+ years of experience in: - Enterprise PKI engineering - Active Directory administration - Strong experience with: - Active Directory Certificate Services (AD CS) - Windows Server environments - Public certificate authorities (DigiCert, Entrust, Sectigo, etc.) - Proficiency in scripting and automation (PowerShell preferred) - Deep understanding of: - X.509 certificates - TLS/SSL protocols - Cryptographic algorithms and standards