
Sr. Network Engineer, Infrastructure & Security
Overview
You will design, implement, and manage the network infrastructure to ensure high availability, security, and scalability across 5+ sites. You will own the installation, configuration, and maintenance of routers, switches, firewalls, and wireless systems. You will monitor network performance and troubleshoot complex issues with Cisco, Palo Alto, and Juniper equipment. 3-5 years of hands-on experience in a multi-site environment is essential. This role stands out for its direct impact on uptime and security across the entire organization.
What You'll Do8
- 1Design and deploy Cisco and Juniper routers and switches to support new site rollouts and capacity upgrades.
- 2Configure and manage Palo Alto firewalls, implementing security policies and VPN tunnels for remote access.
- 3Monitor network performance using SolarWinds and Wireshark, resolving latency and packet loss issues within 24 hours.
- 4Lead the migration of legacy MPLS circuits to SD-WAN, ensuring zero downtime during cutover.
- 5Automate routine network tasks with Python scripts to reduce manual configuration errors.
- 6Document network topology and change procedures, ensuring compliance with ITIL standards.
- 7Provide tier 3 support for network incidents, collaborating with the helpdesk to resolve escalations.
- 8Conduct quarterly security audits and patch management for all network devices.
Requirements8
- 15+ years of experience as a network engineer or administrator in a multi-site environment.
- 2CCNP or CCIE certification required.
- 3Hands-on experience with Cisco IOS and Juniper Junos, including OSPF and BGP.
- 4Strong knowledge of Palo Alto firewalls and Cisco ASA.
- 5Experience with SolarWinds or similar network monitoring tools.
- 6Scripting skills in Python or Perl for network automation.
- 7Familiarity with SD-WAN technologies (e.g., Viptela, Meraki) is a plus.
- 8Bachelor's degree in computer science or related field, or equivalent experience.
Salary Insight
Salary not disclosed in listing
Location
Required Skills
Similar open positions
Explore active roles that match your skills and interests.

Eversoft Technologies LLC
VerifiedNetwork Architect, Enterprise Infrastructure & Cloud Networking
You will design, implement, and optimize enterprise-level network infrastructures for a large-scale transformation. Network Architect role owns the architecture across on-premise and cloud environments, ensuring security and performance. You will lead technical strategy and collaborate with cross-functional teams. This role requires 10+ years of networking experience with deep expertise in Cisco, Juniper, and Palo Alto stacks, plus hands-on AWS and Azure cloud networking.
MetroSys
VerifiedNetwork Operations Engineer, Cisco & Palo Alto Firewalls
You will own network uptime and performance for enterprise infrastructure spanning data centers, branch sites, and cloud. Your stack centers on Cisco routing and switching, Palo Alto firewalls, VMware NSX, and SD-WAN across a regulated multi-site environment. You will join the infrastructure operations team and partner with security, cloud, and application groups. This role stands out for its depth in NSX and SD-WAN and the chance to shape network standards in a compliance-driven setting.
Apex Systems
VerifiedSenior Network Engineer (CCNP), Enterprise & DC
You will design, implement, automate, and support complex enterprise and global network environments across data centers and cloud. You will join a high-performing infrastructure team driving modernization and solving challenging networking problems. This role focuses on CCNP-level expertise, with opportunities to lead network transformation and automation initiatives.
Early Warning Services, LLC
VerifiedSenior Network Engineer
Design and implement complex network solutions that enable secure scalable and highly available enterprise systems. Lead technical design and execution for medium to large initiatives and drive continuous improvement through automation and modern technologies. Serve as a technical leader collaborating with cross-functional teams to deliver integrated infrastructure solutions.

VDart, Inc.
VerifiedNetwork Engineer, Cisco & Palo Alto | VDart
You will design, implement, and maintain enterprise LAN, WAN, and data center networks for VDart. You will configure and support Cisco, Arista, and Juniper equipment, and manage routing protocols like OSPF and BGP. You will also administer Palo Alto firewalls, ensuring security and reliability across the infrastructure. This role is on-site in Englewood, NJ, and requires 13+ years of experience.
Apex Systems
VerifiedNetwork Administrator, Federal Enterprise & Cisco
You will own the Cisco network backbone for a federal enterprise, keeping critical services at 99.9% uptime. You will manage LAN/WAN, VPN, and firewall configurations across 150+ sites. Your daily work pairs with a tight-knit team of engineers and analysts under a long-term contract. This role stands out for its direct impact on national security operations and clear path to CCNP certification.