> Markdown version of [/jobs/ext/1721477-senior-network-engineer](https://www.wearedevelopers.com/jobs/ext/1721477-senior-network-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). --- # Senior Network Engineer - **Company:** ECS Limited - **Location:** Fairfax, VA, United States - **Experience:** Expert - **Salary:** $180,000.0 - **Contract:** Permanent contract - **Skills:** Apple IOS, Border Gateway Protocol, Unix, Cisco IOS, Dynamic Host Configuration Protocol, Linux, Domain Name System (DNS), Internet Protocol Security (IP SEC), Intrusion Detection Systems, Virtual Private Networks (VPN), Multi-protocol Systems, Junos, Network Troubleshooting, Multi Router Traffic Grapher, Network Connections, Network Planning and Design, Network Installation Services, Network Monitoring, Network Service, Cisco Nexus Switches, Nmap, Open Shortest Path First (OSPF), Red Hat Enterprise Linux, Ansible, Web Application Security, Product Software Implementation Methods, Storage Virtualization, Wireshark, VMware VSphere, Network Routers, Websense, Computer Networking Systems, Enterprise Software Applications, Load Balancing, Nx-os, System Availability, Firewalls (Computer Science), Juniper, SC Clearance, Information Technology, SolarWinds (Software), TACACS+ Protocol, Splunk, Cisco - **Published:** July 1, 2026 - **Apply:** https://www.clearancejobs.com/jobs/9006787/senior-network-engineer ## About the Role * Knowledge of commercial enterprise-level tools and products to provide network services, including: firewalls, IPS/IDS, DNS, DHCP, web security, VPN, and NAC * Requires excellent verbal and written communication skills * Great people and communication skills are a must * Performs related duties and fulfills responsibilities as required * Ability to work 3 days onsite at Everforth ECS and/or customer site * 15% CONUS travel or less expected for this position, * Bachelor's degree in Computer Science or related field * US Citizen; Must be able to obtain and maintain a Public Trust determination * 8+ years minimum network engineering experience * 4+ years experience with technical work in a DHS/CBP environment * 4+ years experience in an enterprise network environment with both administration and problem resolution of F5, Juniper and/or Cisco solutions required * Knowledge of ITIL processes and experience adhering to them in a production environment * Knowledge of DHS standards and compliance (i.e. STIGs, Retina report output) * Cisco Certified Network Professional (CCNP), or Juniper Network Certified Internet Specialist (JNCIS), F5 Certified Administrator -Security+ certification per DoD 8570 policy compliance Desired Skills * Master's degree in Computer Science or related technical field * Active SECRET Clearance * Knowledge of Cisco SRND/SAFE and industry best practices * Knowledge of Linux/Unix and Redhat Ansible * Familiarity with network, server, storage virtualization, i.e. MDS switching infrastructure, VSAN, VRF, VPN, and VMWare vSphere * Experience with Juniper products to include: M/MX-series, EX, and SRX * Experience with Cisco enterprise grade products to include: Nexus 7000, 6500, 4500, ISR G2, ISR, ASA, IPS/IDS, TACACS+, and Radius * Advanced knowledge of IOS, JUNOS, NX-OS, MPLS, BGP, GRE, IPSec VPN, and OSPF ## Description * Planning: Conducts short and long-term planning to meet network requirements * Network System Design and Implementation: Designs and implements network systems * Strong working familiarity with F5 Networks, Juniper JUNOS and/or Cisco IOS with hands-on experience configuring routers, switches, load balancers, and firewalls * Network Connectivity: Provides support for network connectivity or related network issues for the user community * Network Installation: Plans and monitors the installation of network systems * Network Monitoring: Analyzes network activity and network problems to discover and prevent systematic errors. Recommends network design changes/enhancements for improved systems availability and performance * Issue Resolution: Troubleshoots, diagnoses and resolves network problems. Researches, analyzes and recommends the implementation of software or hardware changes to rectify any network deficiencies or to enhance network performance * Capacity Planning: Analyzes facilities bandwidth requirements and system interdependencies. Develops capacity planning models * Network Performance Assessment: Assesses network performance to ensure that it meets the present and future needs of the business. Provides network planning recommendations to management * Vendor Management: Evaluates services provided by vendors and recommends changes * Knowledge of Enterprise system monitoring and management tools such as Splunk, Solarwinds, Wireshark, Websense, MRTG and NMAP ## Related Videos - [How Cisco embraced a DevOps culture within its network engineering team](https://www.wearedevelopers.com/videos/99-how-cisco-embraced-a-devops-culture-within-its-network-engineering-team) - [WeAreDevelopers LIVE - Node and Package Security](https://www.wearedevelopers.com/videos/2138-wearedevelopers-live-node-and-package-security) - [Your Infrastructure Is Not a Playground: AI Agents for Infra Done Right](https://www.wearedevelopers.com/videos/2084-your-infrastructure-is-not-a-playground-ai-agents-for-infra-done-right) - [Computer Vision from the Edge to the Cloud done easy](https://www.wearedevelopers.com/videos/263-computer-vision-from-the-edge-to-the-cloud-done-easy) - [The Time Paradox: Building Timezone-Safe Python/Django Applications](https://www.wearedevelopers.com/videos/1915-the-time-paradox-building-timezone-safe-python-django-applications) - [What makes Cybersecurity different for critical infrastructure?](https://www.wearedevelopers.com/videos/571-what-makes-cybersecurity-different-for-critical-infrastructure) ## Related Articles - [Highest Paying Tech Companies for Developers](https://www.wearedevelopers.com/magazine/220-highest-paying-tech-companies-for-developers) - [Best Paying Jobs in Technology](https://www.wearedevelopers.com/magazine/256-best-paying-jobs-in-technology) - [Is Software Engineering Over-Saturated?](https://www.wearedevelopers.com/magazine/418-is-software-engineering-over-saturated) - [Dev Digest 134 - Where pixels sing?](https://www.wearedevelopers.com/magazine/477-dev-digest-134-where-pixels-sing) - [Fully Remote Software Engineer Jobs](https://www.wearedevelopers.com/magazine/447-fully-remote-software-engineer-jobs) - [9 Ways to Make Money Hacking](https://www.wearedevelopers.com/magazine/333-9-ways-to-make-money-hacking)