Cyber Security Project Engineer - Senior | TS/SCI w/ Poly.

Active TS/SCI with Full Scope Polygraph required. U.S. citizenship required.

Location: On-site in Chantilly, VA (Full-Time). On-call within 2 hours; local and CONUS TDY travel possible.

Protect public-facing portals and specialized networks that a federal national-security mission depends on. You'll harden open-internet and dark-web portals, apply tradecraft-aware security standards, and work side-by-side with network engineers when threats move fast.

What you'll do

• Secure, maintain and upgrade online public portals (open internet and dark-web) and specialized mission networks
• Apply cutting-edge internet technologies and services to protect portals and visitors
• Analyze cyber selector data, system logs and network traffic to find and fix real issues
• Implement security standards that keep pace with changing operational practices
• Support Risk Management / cybersecurity framework activities and vulnerability remediation
• Troubleshoot network and browser security issues with engineering teammates
• Document designs, configurations and procedures; brief technical and non-technical stakeholders
• Participate in on-call coverage (report within two hours; target three-hour restoration when infrastructure allows)

What you bring (required)

• Active TS/SCI with Full Scope Polygraph
• Hands-on cybersecurity experience on operational systems or public portals
• Network engineering fundamentals and encryption protocols
• Open-web and dark-web security settings and tools that protect websites and visitors
• Tor and Tor Onion Services configuration/maintenance experience (or clear adjacent onion/public-portal security work)
• Analyzing system logs, network traffic and cyber selector-style data
• Network and browser troubleshooting
• Communicating complex technical topics to non-technical audiences

Nice to have

• CISSP (or CCNA/CCNP / Juniper JNCIA)
• Content Delivery Networks and how they interact with public services
• Cisco, Juniper, Forward Networks, VMware or SolarWinds
• VPS/VPN/VPC configuration
• Python scripting
• Network monitoring tools

Why Falls

A 9% retirement contribution, 100% of family medical premiums paid, and 4 weeks of PTO. We're a small business that's been delivering since 2019, so your work is visible and your voice counts.

Falls Technology is an Equal Opportunity Employer. All qualified applicants will receive consideration without regard to race, color, religion, sex, national origin, disability, or protected veteran status.