> Markdown version of [/jobs/ext/4555794-network-security-engineer](https://www.wearedevelopers.com/jobs/ext/4555794-network-security-engineer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Network Security Engineer

- **Company:** TriOptus LLC
- **Location:** Annapolis, MD, United States
- **Experience:** Expert
- **Contract:** Temporary to permanent
- **Skills:** Border Gateway Protocol, Cloud Computing, Computer Networks, Enhanced Interior Gateway Routing Protocol, Intrusion Detection Systems, Virtual Private Networks (VPN), Network Security, Routing, Network Segmentation, Packet Analyzer, Network Virtualization, Nmap, Open Shortest Path First (OSPF), Public Key Infrastructure, Wireshark, Identity Services Engine, Network Access Control, Load Balancing, Computer Network Operations, In-Plane Switching (IPS), FreeRADIUS, Web Filtering, SolarWinds (Software), Nessus, Cisco
- **Published:** November 4, 2026
- **Apply:** https://www.thejobnetwork.com/job/c45de54f-3f6d-4f58-99a9-213638ee8863/network-security-engineer

## About the Role

* Associate degree.
 * Active certifications: Palo Alto PCNSA or PCNSE, and Cisco CCNA Enterprise or CCNA Security.

Preferred Qualifications:

 * 10 years of IT networking and network security experience.
 * Associate degree in IT-related field.
 * Advanced or recent certifications (within 3 years): Palo Alto PCNSE/NGFW/NSA; Cisco CCNP Enterprise/Security.

Technical Skills:

 * Palo Alto NGFW services: IDS/IPS, content filtering, VPN, DLP, SSL/TLS inspection.
 * Cisco switching, routing, wireless (EIGRP, OSPF, BGP).
 * A10 load balancing and reverse proxies.
 * Network Access Control: Cisco ISE, FreeRADIUS, ACLs.
 * MFA, cloud virtual networking, micro-segmentation, PKI, vulnerability tools (Nessus, Nmap), packet analysis (Wireshark, Riverbed).
 * Centralized management tools: Panorama, SolarWinds., * Ability to work independently and mentor junior staff.
 * Strong communication and presentation skills.
 * Ability to produce technical documents including diagrams, plans, and SOPs.

Work Model:

 * Hybrid: 3 days onsite, 2 days remote (initially 3 onsite/2 remote may adjust).
 * Must be able to report onsite within 4 hours if required.
 * Work hours: Monday-Friday, 8:00 AM-4:30 PM ET, with flexibility for deadlines and on-call needs.

#NetworkSecurityEngineer #PaloAltoFirewalls #PCNSA #PCNSE #CiscoNetworking #CCNA #CCNP #NextGenFirewalls #CiscoISE #8021X #A10LoadBalancer #PacketAnalysis #Wireshark #VulnerabilityManagement #Nessus #Nmap #RoutingAndSwitching #BGP #OSPF #EIGRP #CyberSecurityEngineering #HybridRole #ITInfrastructure #NetworkDesign #SecurityOperations

## Description

We are seeking a Network Security Engineer to design, implement, and support secure enterprise network solutions. This role involves project-based engineering, migration to next-generation technologies, documentation development, and collaboration with engineering teams to ensure secure 24x7 network operations., * Identify organizational requirements and design secure network implementations.

 * Perform engineering, installation, configuration, and troubleshooting of data and security networks.
 * Provide assessment, design, and implementation of secure networking environments.
 * Develop diagrams, documentation, and manage implementation from design through acceptance.
 * Assist in capacity planning, monitoring, and review of secure communication networks.
 * Lead or support migrations from legacy platforms to next-generation security technologies.
 * Troubleshoot critical network security incidents and threats.
 * Implement configuration guidelines, change management, and secure operation procedures.
 * Coordinate and mentor team members while resolving issues promptly.
 * Provide weekly status reports and participate in status meetings.