Senior Network & Firewall Architect

Mission Support and Test Services; Nevada; On-site; USD 90,000 - 130,000; Full time

Job summary

Mission Support and Test Services, LLC (MSTS) invites applications for a Senior Infrastructure Analyst to join the Enterprise Network Services team in the Information Technology directorate at NNSS, Nevada.

The role focuses on installing, operating, monitoring, securing firewalls, switches, VPNs, and access control, while optimizing Palo Alto firewall and load balancer architectures to enable secure, scalable network operations. Candidates should have 5+ years of related experience.

Qualifications

• Bachelor's degree in a computer related field or equivalent and 5+ years of related experience.
• Strong awareness of OSI model and networking protocols.
• Experience configuring and installing network devices and services (routers, switches, firewalls, VPN, load balancers).
• Ability to perform network maintenance, patches, and security configurations.

Responsibilities

• Provide technical support including installation, operation, monitoring, sustaining, and securing firewalls, switches, fabric interconnects, VPN, and access control systems.
• Optimize firewall (Palo Alto) and load balancer architectures for secure, scalable network operations.
• Respond to network changes and failures using MPLS, VRF, BGP, VPN, redundancy, and QoS within IP networks.
• Implement, maintain, and document ACLs; modify GCC managed devices with no service disruption; manage DAPE policies.
• Maintain PPS and Application Layer Filtering records as required.
• Coordinate analysis and resolution of network hardware, software and wiring problems.
• Supervise or perform network server administration and related procedures.
• Monitor network performance and capacity; recommend modifications.
• Participate in network design and proposals for implementation of components.
• Review RFCs/change configurations for accuracy and feasibility within the enterprise network architecture.
• Create, maintain, and sustain network site diagrams with devices, IPs, subnets, and circuits.
• Prepare procedures, documentation and activity reports; provide budget input.
• Assist Help Desk with workstation/server issues; train technicians as needed.
• Lead network projects to install or modify systems; perform other duties.

Skills

End-to-end troubleshooting

OSI Model & protocols

Network design principles

Change control & SOP

Budget input

Data Center experience

Technical support

Network performance monitoring

Education

Bachelor's degree in a computer related field or equivalent

Tools

Routers

Switches

Firewalls

Load balancers

VPN

Wi‑Fi access points

Job description

Mission Support and Test Services, LLC (MSTS) invites applications for a Senior Infrastructure Analyst to join the Enterprise Network Services team in the Information Technology directorate at NNSS, Nevada.

The role focuses on installing, operating, monitoring, securing firewalls, switches, VPNs, and access control, while optimizing Palo Alto firewall and load balancer architectures to enable secure, scalable network operations. Candidates should have 5+ years of related experience.