Senior Network Security Architect - SDA & Data Center Revamp

Zensar Technologies; Greater London; On-site; GBP 90,000 - 130,000; Full time

Job summary

Zensar Technologies is seeking an experienced Network Security & Infrastructure Architect to lead enterprise network transformation and security hardening. You will assess, design, and implement secure, scalable solutions across data center, hosted, and edge environments.

The role focuses on SDA optimization, firewall policy alignment, Check Point replacement, and routing enhancements, requiring deep Cisco expertise and strong governance collaboration.

Qualifications

• Extensive experience in enterprise networking and security architecture.
• Proven track record leading network modernization and security transformation.
• Experience with SDA, firewall policy alignment, and data center networks.

Responsibilities

• Lead enterprise network hardening and policy implementation.
• Assess and design secure, scalable network architectures across data centers, hosted, and edge environments.
• Drive Check Point replacement strategy and migration planning.
• Collaborate with security, infra, and operations teams to enforce governance.

Skills

Enterprise networking

Network security

SDA (Software Defined Access)

Cisco routing & switching

Zero-trust architectures

Firewall policy management

Security frameworks

Education

Bachelor's degree in CS/IT/Engineering

Certifications: CCNP/CCIE/CISSP/CISM/Check Point

Tools

Check Point firewall

Cisco SDA

Job description

Zensar Technologies is seeking an experienced Network Security & Infrastructure Architect to lead enterprise network transformation and security hardening. You will assess, design, and implement secure, scalable solutions across data center, hosted, and edge environments.

The role focuses on SDA optimization, firewall policy alignment, Check Point replacement, and routing enhancements, requiring deep Cisco expertise and strong governance collaboration.