Network Security L3 Engineer with Zscaler

NATIONMIND LLC; Minneapolis (MN); On-site; USD 90,000 - 150,000; Full time

Job summary

NationMind LLC is actively seeking a Network Security L3 Engineer with Zscaler for an onsite Minneapolis assignment. The role emphasizes advanced incident handling, change execution, and collaboration with OEM vendors to maintain and secure enterprise networks.

The ideal candidate will bring 6–10 years of network security experience, hands-on firewall and proxy knowledge, and certifications such as CCNA/CCNP and Zscaler. The position requires onsite work and readiness for 24x7 support if needed.

Qualifications

• 6–10 years of network security experience required.
• Onsite role in Minneapolis, MN.
• ITAR compliance knowledge is a plus.

Responsibilities

• Handle advanced tickets for network security incidents.
• Implement high-priority change requests and service requests.
• Provide technical support for customer network design and new business queries.
• Provide inputs on technology recommendations and transformation initiatives.
• Analyze RCA for major incidents to drive resolution.
• Perform capacity and performance management across network security stack.
• Coordinate with OEM vendors for patches, upgrades and refresh initiatives.
• Lead technology refresh implementation across the security landscape.
• Drive continuous service improvement and automation initiatives.
• Collaborate with L2 teams to adopt AIOps.

Skills

Network security operations

Troubleshooting

Incident management

Capacity planning

Automation / AIOps

Education

CCNA

CCNP

Zscaler Certification

Palo Alto Certification

Aruba Certification

Tools

Zscaler

ZIA

ZPA

Palo Alto

Aruba

Job description

About NationMind LLC: NationMind LLC is a technology consulting firm focused on software development and QA testing services. We help clients build reliable, scalable applications with a strong emphasis on automation, performance, and quality. Our team works across industries, delivering solutions that drive innovation and operational efficiency. We are currently hiring skilled professionals for Network Security L3 Engineer with Zscaler to join our growing team.

Role: Network Security L3 Engineer with Zscaler

Location: Minneapolis, MN (onsite) Duration: 12 months

ITAR Requirement

Exp: 6-10 Years

Certifications

CCNA, CCNP, Palo Alto / Aruba / Zscaler Certifications

Tools

• Zscaler
• ZIA (Proxy)
• ZPA (Zero Trust Access)

Firewall Management

• Panorama (Palo Alto)

WAF / DDOS / NDR

• WAF, DDOS, NDR part of scope (tool specifics depend on environment)

Roles & Responsibilities

• Handle advanced ticketing for network security incidents
• Implement high-priority change requests and advanced service requests
• Provide technical support for customer network design and new business queries
• Provide inputs to customer teams on technology recommendations and transformation initiatives
• Analyze RCA for major incidents and recurring issues to drive resolution
• Perform capacity and performance management across network and security infrastructure
• Work with OEM vendors for software patching, upgrades, and technology refresh initiatives
• Lead execution of technology refresh implementation across network security landscape
• Drive operational excellence and continuous service improvement initiatives
• Enable automation and AIOps adoption in collaboration with L2 teams

Technical Skills / Competencies

• Strong hands‑on experience in network security operations
• Knowledge of firewalls, proxies, VPN, and network access control
• Experience with Palo Alto, Aruba, Zscaler or similar technologies
• Strong troubleshooting and analytical skills for complex issues
• Experience in incident, problem, and change management
• Understanding of capacity planning and performance tuning
• Experience working with OEM vendors and third‑party providers
• Exposure to automation and AIOps tools

Soft Skills

• Strong stakeholder communication and coordination skills
• Ability to drive RCA discussions and improvement initiatives
• Strong documentation and reporting capabilities
• Ability to work in a 24x7 support model if required