Senior Network Security Engineer – F5, Zscaler & Infoblox

Tata Consultancy Services; Plano (TX); On-site; USD 120,000 - 135,000; Full time

Benefits offered by this job

Annual incentive

Medical coverage

Parental leave

401K plan

Training reimbursement

Vacation and holidays

Job summary

Tata Consultancy Services in Plano, TX seeks an experienced Network Security Engineer to design, implement, and optimize secure application delivery. You will work with F5 BIG-IP, Zscaler, Infoblox, and Palo Alto firewalls to safeguard critical infrastructure and ensure high availability.

The role requires 10+ years in security engineering, strong networking fundamentals, and scripting skills (Python/Ansible) to automate operations and improve efficiency.

Qualifications

• Experience: 10 years in network security engineering or similar roles.
• Infoblox: hands-on DDI/IPAM administration.
• Zscaler: knowledge of ZIA, ZPA, PAC files, and DLP engines.
• F5: BIG-IP LTM/GTM administration including iRules and SSL certs.
• Firewalling: Palo Alto Networks experience preferred.
• Networking: TCP/IP, BGP, OSPF, VLANs, DNS.
• Automation: scripting with Python/Ansible.

Responsibilities

• Design, configure, and troubleshoot F5 BIG-IP LTM/GTM for high availability and performance.
• Implement and manage Zscaler ZIA/ZPA to secure access and enforce policies.
• Deploy and manage Infoblox DNS/DHCP/IPAM solutions.
• Configure Palo Alto firewalls to enforce security policies (NAT, zones, threat prevention).
• Maintain PAC files, SSL inspection policies, and troubleshoot traffic flows.
• Create and maintain network documentation and change-management procedures.

Skills

10+ years in security engineering

Infoblox DDI/IPAM

Zscaler ZIA/ZPA

F5 BIG-IP LTM/GTM

Palo Alto firewalls

Networking fundamentals (TCP/IP, BGP,O

Python/Ansible scripting

Education

Bachelor's degree in CS/IT

Tools

Infoblox

Zscaler

F5 BIG-IP

Palo Alto

Job description

Tata Consultancy Services in Plano, TX seeks an experienced Network Security Engineer to design, implement, and optimize secure application delivery. You will work with F5 BIG-IP, Zscaler, Infoblox, and Palo Alto firewalls to safeguard critical infrastructure and ensure high availability.

The role requires 10+ years in security engineering, strong networking fundamentals, and scripting skills (Python/Ansible) to automate operations and improve efficiency.