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ISTARI

Accelerating global businesses on their journey towards cyber resilience.

Network Security Engineer

Security EngineerSecurity EngineerContractRemoteLeadTeam 51-200Since 2020Company SiteLinkedIn

Location

United States

Posted

1 day ago

Salary

Not specified

Seniority

Lead

Bachelor Degree8 yrs expEnglishCloudFirewalls

Job Description

• Delivers Network Security architecture and engineering support for Zscaler ZIA/ZPA • Firewall policy management, and segmentation across on-prem, remote, and cloud environments • Administer Zscaler ZIA and ZPA environments, including policy configuration, rule tuning, and SSL inspection • Manage firewall and proxy rules across enterprise infrastructure, ensuring alignment with Zero Trust segmentation principles • Investigate anomalous network traffic and support SOC incident response by analysing packet flows, proxy logs, and threat intelligence • Collaborate with architects and SOC teams to integrate Zscaler telemetry into Microsoft Sentinel • Design secure connectivity patterns for on-prem, remote, and cloud users with policy-based routing and segmentation • Provide escalation support for complex network security incidents

Job Requirements

  • Bachelor’s degree in science or engineering
  • 8-10 years of experience in Network Design & Architecture with in-depth knowledge of firewalls, VPNs, VLANs, DMZs, SD-WAN, SASE, and remote access technologies
  • Expertise in designing secure network topologies, network segmentation (micro and macro), Zero Trust models, and data center architecture
  • Strong knowledge of IT/OT Network Segmentation, Zero Trust, and industry standards for network security architecture and governance
  • Security certifications (e.g., CISSP, Cisco Network Security certifications like CCNP, CCIE)
  • Excellent architect skills with effective communication with ability to create client deliverables
  • Strong analytical skills to identify risks, develop design blueprints, and solve complex network security challenges

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