Cyber Security Infrastructure Architect

Job Title: OT Cyber Security Infrastructure Architect Department: OT Infrastructure & Cyber Security
We believe that our strength is not just in our steel but the diversity of our workforce. We're seeking a visionary OT Cyber Security Infrastructure Architect to shape and safeguard our global operational technology environments.

As an OT Cyber Security Infrastructure Architect, you'll define and implement strategic security architectures that protect and optimise our OT assets globally. This role is integral to our continued success, linking advanced cyber security practices directly to our strategic business objectives of safety, operational resilience, and technological advancement. As part of your role, you'll lead hardening activities aligned with CIS benchmarks, helping to standardise and strengthen our global cybersecurity posture.

You'll lead transformative projects, designing and deploying robust cyber security frameworks that ensure seamless operations and effective threat mitigation. Collaboration will be key, working closely with international cross-functional teams from engineering, IT, and operational management to ensure comprehensive security integration. You will be delivering secure solutions across segmented networks, implementing and maintaining secure designs, configurations, access controls and hardened environments within Wintel-based Active Directory environments.

Your ability to deliver complex projects will have measurable impacts, including reduced downtime, enhanced incident response capabilities, and strengthened compliance with global standards like ISA/IEC 62443 and NIST SP 800-82. This role offers extensive opportunities for career growth, global collaboration, and continuous learning within Tata Steel’s forward-thinking culture.

To succeed as our OT Cyber Security Infrastructure Architect, you'll bring substantial experience and specialised expertise, specifically:
A strong background in cyber security architecture, particularly within operational technology (OT) environments.
Proven experience designing and implementing secure network infrastructures, including firewalls, IDS/IPS, endpoint security solutions, and advanced threat protection systems.
A strong background in designing, implementing and securing complex AD structures, managing Group Policy Objects to enforce security and configuration requirements
Relevant professional qualifications or certifications such as Microsoft Role Based certifications, CISSP, GICSP, ISA/IEC 62443 Cybersecurity Expert, or equivalent.
Experience in applying CIS (Center for Internet Security) hardening standards to ensure secure system configurations across critical assets would be desirable.

Tata Steel UK offers their employees significant benefits packages. A market competitive salary
~35 days holidays per annum
~ Annual Pay Review
~ Quarterly Bonus Scheme – subject to business performance
~ Private Healthcare Scheme (Individual cover)
~ One of the UK’s leading defined contribution pension schemes (10% employer contribution / 6% employee contribution)


We also have an extensive list of lifestyle benefits including free onsite parking at all of our sites, an employee assistance programme as well as Employee discount scheme for companies including Vodafone, Jaguar Land Rover and also various local services.

Sustainability is at the very heart of what we do and we are dedicated to managing our operations responsibly and to continuously improving our performance. Tata Steel in the UK is committed to our ambition of reducing energy consumption and to becoming a carbon neutral steelmaker by 2045, to find out more about our journey click here Stoves cooking less carbon – YouTube