PKI Architect

Join Tata Consultancy Services, Asia Pacific and be part of an organization committed to sustainable development for our future. TCS follows the Tata group philosophy of building sustainable businesses that are rooted in the community and demonstrate care for the environment. Our unique values position us to combine a purpose-driven worldview with digital innovation, collaborating with customers, communities and governments to lead and shape innovative solutions for a sustainable future.

TCS has been carbon neutral in its operations across 11 countries, 12 delivery centres and 18 offices in Asia Pacific since 2022. This is only the initial stage in TCS’ journey as we strive to achieve long‑term net zero emissions by 2030. Corporate sustainability is embedded in our triple-bottom-line, focusing on people, the planet, and our purpose. Our offices are designed with eco-friendly features that significantly reduce our carbon footprint and enhance energy efficiency. We actively champion green initiatives, such as promoting paperless operations, implementing energy-efficient practices, and fostering employee engagement in sustainability efforts.

When you become part of the TCS family, you will play an essential role dedicated to innovation, excellence, and crafting a brighter, greener future together. Join us and be a part of our mission to drive sustainability through technology and talent at Tata Consultancy Services, APAC today.

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.

Top Reasons to Join Our Team at TCS Australia

• Attractive compensation & rewards — We offer a highly competitive salary package aligned with the Australian market, complemented by performance‑based incentives, recognition programs, and comprehensive employee benefits.
• Global exposure with local impact — At TCS, you’ll work with leading Australian enterprises across diverse industries while collaborating with our global network of experts.
• Empowering leadership & supportive environment — Our leadership team is committed to helping you succeed.
• Inclusive, collaborative culture — Diversity, inclusion, and respect are central to who we are.
• Continuous learning & cutting‑edge innovation — We invest heavily in your development, offering structured learning programs, global certifications, leadership development, and opportunities to work with emerging technologies.

A Great Fit for the TCS Culture

• Passionate about technology and transformation.
• Driven by curiosity, innovation, and continuous learning.
• Excited to work in a collaborative, purpose‑driven environment.
• Motivated by delivering real impact for clients, communities, and society.

Our core values — Integrity, Excellence, Responsibility, Pioneering Spirit, and Unity — shape how we work and how we grow together.

The TCS Community in Australia and Beyond

• Global strength: Over 600,000+ associates in 55+ countries, united by a shared purpose — to innovate and make a difference.
• Local presence: A trusted partner to Australia’s leading enterprises across financial services, government, retail, healthcare, telecom, and more.
• Social impact: Deeply committed to sustainability, digital inclusion, and community engagement initiatives in Australia and around the world.
• Empowered workplace: We foster a culture where diversity, equity, and accessibility are integral to how we operate.

We don’t just imagine a better future — we help build it.

About TCS

Tata Consultancy Services (TCS) is a global leader in IT services, consulting, and business solutions. We have partnered with many of the world’s largest organisations to help them transform their businesses, operating models, and technology ecosystems.

Equal Opportunity Employer

TCS is an equal opportunity employer. All qualified applicants will be considered without regard to race, colour, religion, gender, gender identity, sexual orientation, national origin, disability, veteran status, or any other characteristic protected by applicable law.