Senior Firewall Engineer

Senior Firewall Engineer Springfield, VA Active TS/SCI Security Clearance Required D2 Consulting is looking for a skilled Senior Firewall Engineer to join a high-impact team protecting mission-critical infrastructure. You'll work side-by-side with both corporate and government leadership — meaning your work gets noticed, and your voice matters. What You'll Actually Be Doing This isn't a "maintain the status quo" role. You'll be solving real security challenges at enterprise scale: Design & build state-of-the-art secure network architectures — from concept to implementation Protect the network by managing WAN, LAN, CAN, and remote security environments, handling incidents with speed and precision Own the security stack — firewalls, F5 load balancers, web/mail gateways, IDS platforms, and management tools Lead incident response — investigate, document, and drive corrective action when it matters most Shape security operations by developing SOPs that the broader team will rely on Stay ahead of threats by researching and evaluating emerging network security technologies Be the expert in the room — serve as a trusted liaison to contract leadership, customers, and government DAA stakeholders on security posture, policies, and procedures What You Bring to the Team Required Clearance & Certifications: Active TS/SCI clearance (must be current) Ability to pass a U.S. Government Polygraph (post-hire) Dod 8140.01 / 8570.01-M IAT Level II compliant certification (current) CSSP Infrastructure Support certification — or the drive to earn it within 120 days of starting Experience: 5+ years in Network Security within large-scale enterprise or global environments BA/BS degree preferred — but strong hands-on experience can speak just as loudly. You can substitute a degree with 4 years of additional experience Firewalls: Palo Alto, Juniper, Cisco Routers/Switches: Juniper, Cisco IDS/Threat Tools: FireEye, F5 Load Balancer, Cisco FTD OS/Platforms: Unix, RHEL, Windows Enterprise AD, VMware Why This Role? You'll be part of a team that works on problems that actually matter — supporting government missions at the highest levels. If you're a network security professional who wants scope, challenge, and the chance to influence enterprise-wide security decisions, this is the place. Additional Information All your information will be kept confidential according to EEO guidelines. Compensation is unique to each candidate and relative to the skills and experience they bring to the position. The salary range for this position is typically $130-140k. This does not guarantee a specific salary as compensation is based upon multiple factors such as education, experience, certifications, and other requirements, and may fall outside of the above-stated range. Highlights of our benefits include Health/Dental/Vision, 401(k) match, Accrued PTO, STD/LTD/Life Insurance, Referral Bonuses, professional development reimbursement, and more! D2 Consulting