Wintel Infrastructure Engineer (CEBU)

We are looking for an experienced Wintel Infrastructure Engineer with a strong background in Wintel Infrastructure, PKI, and Certificate Administration to join a growing enterprise technology team. This is a hands-on infrastructure role focused on managing and supporting enterprise certificate services across on-premises and cloud environments.

The successful candidate will be responsible for the end-to-end administration of digital certificates, including issuance, renewals, lifecycle management, troubleshooting, and automation initiatives to ensure secure and uninterrupted business operations.

• Manage and support enterprise Public Key Infrastructure (PKI) and certificate services.
• Handle certificate issuance, deployment, renewal, revocation, and lifecycle management.
• Monitor certificate expiration and ensure timely renewals to prevent service disruptions.
• Deploy and manage certificates across Windows and Linux server environments.
• Work closely with Infrastructure, Security, Network, and Application teams to maintain compliance with enterprise security standards.
• Troubleshoot certificate-related issues across applications, servers, and network devices.
• Support automation efforts to improve certificate management processes and reduce manual intervention.
• Maintain documentation, operational procedures, and compliance reporting related to certificate services.

• 5+ years of experience in Infrastructure, Systems Administration, Compute, or Wintel environments.
• Strong experience in PKI and Certificate Administration.
• Proven experience managing internal and external certificates in enterprise environments.
• Background in Windows Server administration and enterprise infrastructure support.

• Solid understanding of:
• PKI concepts and certificate lifecycle management
• X.509 Certificates
• TLS/SSL, HTTPS
• Certificate chains, trust models, and renewal processes
• Experience administering Microsoft Active Directory Certificate Services (AD CS) or similar PKI platforms.
• Hands-on experience deploying certificates across:
• Windows and Linux Servers
• IIS, Apache, and Nginx
• Load balancers and reverse proxies
• Exposure to certificate management solutions such as:
• Venafi
• Keyfactor
• AppViewX
• DigiCert
• Sectigo
• Working knowledge of:
• PowerShell
• Python or Shell Scripting
• ITSM platforms such as ServiceNow

• Strong analytical and troubleshooting skills.
• Ability to work within complex enterprise environments.
• Excellent communication and stakeholder management abilities.
• Detail-oriented with a strong focus on security, compliance, and operational excellence.