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Tata Consultancy Services · Sydney

# PKI Architect

Sydney 

Last seen on Tata Consultancy Services’s official careers site on August 1, 2026; it may have closed since.
[Apply on Tata Consultancy Services’s careers site →](https://ibegin.tcsapps.com/candidate/jobs/419859J)

[OpenNash Jobs](https://jobs.opennash.com/) / [Tata Consultancy Services](https://jobs.opennash.com/companies/tata-consultancy-services/) / PKI Architect

## Job description

### Primary Responsibilities
- Enterprise PKI Architecture — Define and maintain PKI architecture, including CA hierarchy, trust models, certificate policies, and security controls.
- CA/RA Governance — Oversee Certificate Authority and Registration Authority operations, ensuring secure issuance, renewal, and revocation processes.
- Cryptographic Standards Management — Establish and enforce cryptographic policies, key management procedures, algorithm standards, and HSM governance.
- Infrastructure Security — Ensure secure deployment of PKI components, including OCSP, CRL distribution, offline root CA protection, and high-availability configurations.
- Integration & Enablement — Integrate PKI with enterprise systems such as IAM, TLS/SSL, MDM, IoT, cloud platforms, and internal applications.
- Risk, Audit & Compliance — Conduct PKI risk assessments, support internal/external audits, and ensure compliance with NIST, ISO 27001, and regulatory requirements.
- Documentation & Policy Development — Develop and maintain CP/CPS documents, architecture diagrams, operational procedures, and governance frameworks.
- Incident Response Support — Provide expertise during cryptographic incidents, certificate failures, or trust-related security events.

### Required Qualifications
- Cryptography Expertise — Deep understanding of X.509, PKCS standards, OCSP, CRL, key algorithms, and secure key lifecycle management.
- PKI Platform Experience — Hands-on experience with enterprise PKI systems, HSMs, CLM tools, and CA/RA operations.
- Security Framework Knowledge — Familiarity with NIST 800-53, ISO 27001/2, and cryptographic compliance requirements.
- Automation & Scripting — Proficiency in PowerShell, Python, or Shell scripting for PKI automation and operational efficiency.
- Bachelor’s or Master’s degree in Computer Science, Information Security, or a related discipline.

## At a glance
- Posted by the employer: Not stated
- First seen by OpenNash: Aug 1, 2026
- Last checked: Aug 1, 2026
- Listed for: Under a day
- Location: Sydney[Apply on Tata Consultancy Services’s careers site →](https://ibegin.tcsapps.com/candidate/jobs/419859J)

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