Senior PKI Engineer: Certificate Lifecycle & Automation

RESOURCE HUNT PTE. LTD.; Singapore; On-site; SGD 110,000 - 170,000; Full time

Job summary

RESOURCE HUNT PTE. LTD. is seeking an experienced PKI Engineer to design, implement, administer, and support the organization’s PKI environment.

You will manage certificate lifecycle, CA administration, cryptographic standards, and automation for certificate operations across enterprise applications and security platforms. The role requires hands-on experience with PKI platforms, HSMs, and automation, as you will collaborate with IT, security, and vendor teams on PKI projects and modernization

Qualifications

• Extensive PKI infrastructure design and operational experience.
• Certificate lifecycle management and CA administration expertise.
• Knowledge of TLS/SSL deployment, cryptographic standards, and PKI governance.

Responsibilities

• Manage enterprise PKI infrastructure including CAs, RAs, and certificate management platforms.
• Administer end-to-end certificate lifecycle including issuance, renewal, revocation, and expiry tracking.
• Deploy and support SSL/TLS certificates across servers, apps, and network devices.
• Implement certificate discovery, inventory, and compliance reporting.
• Manage cryptographic keys and HSMs per security standards.
• Develop automation scripts/workflows for provisioning and renewal.
• Support PKI integration with monitoring, ITSM, vulnerability management, and secrets platforms.
• Troubleshoot certificate, authentication, encryption, and trust-chain issues.
• Maintain PKI SOPs, standards, and audit docs.
• Collaborate with application, infrastructure, cybersecurity, and vendor teams on PKI projects.
• Support TLS 1.3 adoption and PQC readiness.

Skills

PKI

TLS/SSL

CA admin

CLM

Automation

Windows/Linux

PowerShell

Python

HSMs

RBAC

Tools

Microsoft ADCS

DigiCert

Entrust

Keyfactor

Venafi

AppViewX

Job description

RESOURCE HUNT PTE. LTD. is seeking an experienced PKI Engineer to design, implement, administer, and support the organization’s PKI environment.

You will manage certificate lifecycle, CA administration, cryptographic standards, and automation for certificate operations across enterprise applications and security platforms. The role requires hands-on experience with PKI platforms, HSMs, and automation, as you will collaborate with IT, security, and vendor teams on PKI projects and modernization