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PKI (Public Key Infrastructure) Specialist (Contract)

PKI (Public Key Infrastructure) Specialist (Contract)

tangspac consulting pte ltd
10-13 Years
SGD 1.2 - 1.56 LPA
Early Applicant
  • Posted 5 days ago
  • Be among the first 10 applicants

Job Description

Key Responsibilities

  • Administer end-to-end certificate lifecycle management, including issuance, renewal, revocation, replacement, and expiration tracking.

  • Provide on-site hands-and-eyes support for remote technical teams accessing IT infrastructure devices
  • Execute hosting provisioning (VMs, database, storage, backup) for IT and OT applications, following internal change management process
  • Deploy and support SSL/TLS certificates across servers, middleware, databases, web applications, APIs, and network devices
  • Implement certificate discovery, inventory management, and compliance reporting capabilities.
  • Manage cryptographic keys and Hardware Security Modules (HSMs) in accordance with security standards.
  • Develop and maintain automation scripts, APIs, and workflows for certificate provisioning and renewal.
  • Support PKI integrations with enterprise tools such as monitoring, ITSM, vulnerability management, and secrets management platforms
  • Troubleshoot certificate, authentication, encryption, and trust-chain related issues.
  • Maintain PKI operational procedures, standards, and audit documentation.
  • Collaborate with application, infrastructure, cybersecurity, and vendor teams on PKI projects and certificate deployments.
  • Support modernization initiatives including TLS 1.3 adoption, certificate governance, and Post-Quantum Cryptography (PQC) readiness.

Required Skills

  • 5+ years in IT infrastructure project coordination or delivery, ideally including at least one new-site or facility build-out
  • Hands-on troubleshooting & configuring experience with network, server hosting, storage/backup, and cloud (AWS)
  • Manage and maintain enterprise PKI infrastructure, including Certificate Authorities (CA), Registration Authorities (RA), and certificate management platforms.
  • Strong understanding of Public Key Infrastructure (PKI), X.509 Certificates, Certificate Authorities (CA), Certificate Revocation Lists (CRL), TLS/SSL, and Online Certificate Status Protocol (OCSP)
  • Experience with Microsoft ADCS, DigiCert, Entrust, Keyfactor, Venafi, AppViewX, or similar PKI platforms.
  • Knowledge of cryptographic technologies including RSA, ECC, AES-256, SHA-2/SHA-3, and TLS 1.2/1.3.
  • Hands-on experience with Windows and Linux platforms.
  • Scripting experience using PowerShell, Python, or Shell scripting.
  • Understanding HSMs, RBAC, audit controls, and security compliance requirements.
  • Experience in integrating PKI solutions with enterprise applications and middleware and database platforms.
  • 10+ years of PKI, Cybersecurity, or Infrastructure Security experience.
  • Certifications such as CISSP, CISM, Security+, or PKI-related certifications would be advantages
  • Experience with certificate lifecycle management (CLM) platforms and automation solutions.

More Info

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