Senior Network Security Engineer

Salary: $124,000 - 164,000 per year Requirements:

• We are seeking 7 to 10+ years of experience working with data networks, with a strong emphasis on routing protocols such as OSPF, BGP, and EIGRP, as well as switching technologies like Spanning Tree and VSS.
• We prefer candidates with hands-on experience using SolarWinds Engineers ToolSet, SecureCRT, and ServiceNow.
• We are looking for practical experience with Panorama and Palo Alto firewalls, including logical partitioning and firewall rule configuration.
• We require familiarity with Cisco platforms, along with administration, maintenance, and installation experience.
• We expect a basic understanding of firewall rule setup.
• We value the ability to collaborate effectively with project teams and managers in a service-provider environment.
• We want a strong team player who can also mentor others.
• We prefer candidates who are able to obtain or already hold a Public Trust clearance.
• Cisco certifications such as CCNP or CCIE are preferred.
• Experience with Infoblox management, including DNS, DHCP, and grid configuration, is highly desirable.
• Experience with Zscaler solutions such as ZIA, ZPA, and ZDX is highly desirable.
• We ask that candidates be U.S. citizens and hold an active Public Trust or Secret clearance.
• We prefer candidates with at least 7 years of experience configuring network equipment.

• We provide Tier 3 support for internal teams and a Federal agency across data network and security environments.
• We implement best-practice network and security solutions and services.
• We manage, troubleshoot, and monitor data solutions using routing and switching technologies.
• We configure Palo Alto firewall policies, including application identification and threat prevention settings.
• We maintain and administer data networks and systems built on Cisco product lines.
• We monitor network performance with SolarWinds and take corrective action to keep performance optimized.
• We resolve data network issues and escalate complex matters to network architecture when needed.
• We implement and troubleshoot enterprise network incidents, outages, and related solution issues.
• We respond to escalated incidents and service requests from delivery and operations teams.

• Cisco
• Firewall
• Support
• Network
• Security
• ServiceNow
• SDWAN

More:

We are Start to End Networks, LLC, a network and cybersecurity professional services firm headquartered in Vienna, VA and recognized by Washington Technology Fast 50 and Inc. 5000. We provide technology solutions to Federal agencies across the DC Metro area and work closely with major Federal contractors as a trusted teaming partner. Our team values technical excellence, strong work-life balance, and competitive compensation. This is a full-time Senior Network Security Engineer role supporting a large Federal customer in Washington, DC, with remote work location noted. We offer a strong benefits package that includes top pay with overtime, health, dental, and vision coverage, disability and life insurance, PTO, federal holidays, 401(k) with company match, tuition reimbursement, and paid parking.

last updated 42 week of 2026