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Network Security Engineer

Role overview

Qualifications

  • Bachelor’s degree in science or engineering
  • 8-10 years of experience in Network Design Architecture
  • Strong experience with firewalls, VPNs, VLANs, DMZs, SD-WAN, SASE, and remote access technologies.
  • Security certifications (e.g., CISSP, Cisco Network Security certifications like CCNP, CCIE)

Responsibilities

  • 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.

Key facts

Other skills

  • Governance
  • Communication
  • Analytical Skills

About the company

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ISTARI

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Company details

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Job description

We are look for a  Network Security Engineer to create and establish network security design, engineering, and operational enablement for securing network traffic and access through Zero Trust principles. 


Responsibilities : 

  • 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.


Skills Required

  • Bachelor’s degree in science or engineering  
  • 8-10 years of experience in Network Design & Architecture  with in-depth knowledge of Strong experience with 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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MR

Marcus Rivera

Chief Revenue Officer

m.rivera@company.com
linkedin.com/in/marcusrivera
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