PKI Engineer

Role: PKI Support/OperatorEmployment Type: Permanent, Full-Time (Contract or Permanent) Location: On-site - Corsham / FarnboroughClearance Required: DV (Developed Vetting)

Role Summary

We're seeking a skilled PKI Support/Operator to provide 2nd-4th line support for Public Key Infrastructure (PKI) services and supporting infrastructure. This on-site role involves troubleshooting, maintenance, certificate life-cycle management, and ensuring compliance with security best practices in a high-assurance environment.

Key Responsibilities

Operational Support & Incident Management

• Provide 2nd/3rd line support for PKI systems including root, subordinate, and issuing CAs.
• Troubleshoot certificate issues (issuance, revocation, validation, auto-enrolment).
• Manage incidents, service requests, and changes within defined SLAs.

Infrastructure Maintenance

• Support identity and security services (e.g. AzureAD, Intune, SSO).
• Monitor and respond to alerts (e.g. Microsoft Defender).
• Maintain server health, backups, patching, and updates.

Certificate Lifecycle Management

• Handle certificate requests, renewals, and revocations.
• Maintain inventory and ensure timely renewals to avoid service disruption.

Compliance & Documentation

• Adhere to CP/CPS and security policies.
• Manage CA audit logs and role-based access controls.
• Maintain detailed technical and procedural documentation.

Required Skills & Experience

Technical:

• Solid understanding of PKI concepts (CAs, CRLs, OCSP, key management).
• Windows Server administration and PowerShell scripting.
• Network fundamentals: DNS, DHCP, TCP/IP.
• Familiarity with security frameworks (FIPS 140-2, NIST, GDPR).
• Experience with ITSM processes (incident/change/problem management).
• Exposure to cloud services (Azure, AWS, Intune).
• Strong documentation and troubleshooting skills.

Preferred Certifications

• CompTIA Security+ or relevant vendor certification (desirable)

Reasonable Adjustments:

Respect and equality are core values to us. We are proud of the diverse and inclusive community we have built, and we welcome applications from people of all backgrounds and perspectives. Our success is driven by our people, united by the spirit of partnership to deliver the best resourcing solutions for our clients.

If you need any help or adjustments during the recruitment process for any reason, please let us know when you apply or talk to the recruiters directly so we can support you.