Senior Network Engineer – Juniper & Palo Alto (Hybrid)

Smart Start, Inc.; Grapevine (TX); Hybrid; USD 100,000 - 140,000; Full time

Benefits offered by this job

Health plan

401(k) match

Performance bonus

Life insurance

Telemedicine access

Job summary

Smart Start is seeking a seasoned Network Engineer to enhance and support our enterprise network infrastructure. You will handle Juniper switching/routing, Palo Alto firewalls, VPN connectivity, datacenter links, and site-to-site networking in a hybrid work environment.

The role requires hands-on troubleshooting of production issues, firewall and routing problem-solving, and collaboration across Windows Server and core infrastructure services to ensure reliability and security.

Qualifications

• 7+ years of hands-on enterprise network experience.
• Strong experience with Juniper networking equipment.
• Strong experience with Palo Alto firewalls.
• Experience with routing, switching, firewalling, VPNs, NAT, segmentation, and high-availability network design.

Responsibilities

• Manage and troubleshoot Juniper switching and routing infrastructure.
• Manage and troubleshoot Palo Alto firewalls, including policies, NAT, VPNs, traffic logs, and HA configurations.
• Support LAN, WAN, datacenter, remote-site, and third-party connectivity.
• Troubleshoot production connectivity issues involving firewalls, switches, routers, VPNs, DNS, DHCP, servers, and applications.
• Use firewall logs, packet captures, routing tables, interface counters, and monitoring tools to diagnose issues.
• Monitor network availability, circuit health, firewall performance, VPN tunnels, and site connectivity.
• Plan and complete network changes using maintenance windows, validation steps, and rollback plans.
• Support firewall rule reviews, network segmentation, vulnerability remediation, and security improvements.
• Work with vendors and carriers on circuit issues, hardware replacements, firewall support cases, and escalations.
• Maintain network diagrams, IP addressing, firewall rules, VPN documentation, circuit records, and support procedures.
• Participate in production support, after-hours maintenance, and on-call rotation.

Skills

Juniper networking

Palo Alto firewalling

VPNs & NAT

Routing & switching

Network troubleshooting

Windows Server/AD/DNS/DHCP

Hyper-V virtualization

Network monitoring

Scripting/Automation (PowerShell)

Tools

SolarWinds

FortiMonitor

PRTG

Packet captures / Wireshark

Job description

Smart Start is seeking a seasoned Network Engineer to enhance and support our enterprise network infrastructure. You will handle Juniper switching/routing, Palo Alto firewalls, VPN connectivity, datacenter links, and site-to-site networking in a hybrid work environment.

The role requires hands-on troubleshooting of production issues, firewall and routing problem-solving, and collaboration across Windows Server and core infrastructure services to ensure reliability and security.