Senior Network Security Architect & Strategy Lead

Tata Consultancy Services; Royal Leamington Spa; On-site; GBP 90,000 - 130,000; Full time

Benefits offered by this job

Pension

Health care

Life assurance

Laptop

Phone

Extensive training resources

Discounts within Tata network

Health & wellness initiatives

London Marathon sponsorship

Job summary

Tata Consultancy Services in the United Kingdom seeks a Lead Security Architect - Networks to define and govern the network security architecture strategy across OT and enterprise environments. You will collaborate with Network Engineering, Enterprise Architecture, and Cyber Security to ensure secure by design, resilient, scalable network solutions while aligning with regulatory requirements.

You will shape the future security landscape, influence strategic direction and lead cross-functional

Qualifications

• Extensive experience in Network Security Architecture or similar leadership role in a large enterprise.
• Strong expertise in enterprise network architecture across corporate and OT environments.
• Proven track record designing secure WAN/LAN/cloud/hybrid networks.
• Deep knowledge of network security tech including firewalls, VPNs, NAC, IDS/IPS, DLP, SIEM, wireless security.
• Experience with security frameworks such as NIST, ISO 27001, OWASP, SANS Controls, Cyber Essentials.

Responsibilities

• Define and govern the network security architecture strategy and roadmap.
• Lead secure network architectures across enterprise, cloud, hybrid, and OT environments.
• Develop and maintain network security blueprints, standards, patterns, and reference architectures.
• Ensure designs meet security, resilience, scalability, and operational requirements.
• Drive Zero Trust adoption through segmentation and modern access control models.
• Establish governance, security policies, and operating models for current and future networks.
• Support audit, compliance and risk activities for network security initiatives.
• Provide architectural leadership across security technologies and vendor assessments.

Skills

Security leadership

Network security architecture

Threat modelling

Risk management

Stakeholder management

Communication

Tools

Firewalls

VPNs

NAC

IDS/IPS

DLP

SIEM

Wireless security

Job description

Tata Consultancy Services in the United Kingdom seeks a Lead Security Architect - Networks to define and govern the network security architecture strategy across OT and enterprise environments. You will collaborate with Network Engineering, Enterprise Architecture, and Cyber Security to ensure secure by design, resilient, scalable network solutions while aligning with regulatory requirements.

You will shape the future security landscape, influence strategic direction and lead cross-functional