Sign up to access all features of our service.
  • Job search
  • Favorites
  • Create a CV
    New
  • Salaries
  • Subscriptions

Senior Firewall Engineer

$130k - $140k

D2 Technical Services

**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 is committed to a merit-based recruitment process and encourages applications from all qualified individuals. As a Veteran-Owned Small Business, we particularly welcome applications from veterans who have the requisite skills and experience. Job applicants that are interested in one of our openings and may require a reasonable accommodation to participate in the job application or interview process, should contact us to request an accommodation.
Vacancy posted 4 days ago
Similar jobs that could be interesting for youBased on the Senior Firewall Engineer in Springfield, VA vacancy
  • $75.2k - $158.1k

    Job Title: Senior Firewall EngineerJob Category: Information TechnologyTime Type: Full timeMinimum Clearance Required to Start: TS/SCIEmployee Type: RegularPercentage of Travel Required: Up to 10%Type of Travel: Local* * *The OpportunityAs a member of the TCS Network Security... 
    Senior
    Contract work
    Work experience placement
    Local area
    Remote work
    Flexible hours

    CACI International

    Springfield, VA
    3 days ago
  • $120k - $130k

    Job DescriptionEverforth ECS is seeking a Senior Check Point Firewall Engineer to work in our Washington, DC office / remote. ECS is seeking a Senior Check Point Firewall Engineer to provide the following services to our Federal government client:Collaborate with customer... 
    Senior
    Work at office
    Remote work

    ECS Federal

    Washington DC
    3 days ago
  •  ...Transportation, Federal and State Government Agencies. Learn More About ProSidian Consulting at DescriptionProSidian seeks a Senior-Level InfoSec Firewall Engineer Consultant focusing on Cyber-Security/Information Security (INFOSEC) and IT Effectiveness Solution related issues,... 
    Senior
    Full time
    For contractors
    Work experience placement
    Internship
    Work at office
    Monday to Friday
    Shift work

    Prosidian Consultng

    Washington DC
    2 days ago
  • $113.2k - $237.8k

    Job Title: Senior Cybersecurity EngineerJob Category: EngineeringTime Type: Full timeMinimum...  ...technologies, on high performing cyber engineering teams, and benefiting from accelerated...  ..., Microsoft Defender), Next-Generation Firewalls (Palo Alto, Juniper, Cisco), Intrusion... 
    Senior
    Long term contract
    Contract work
    Work experience placement
    Local area
    Flexible hours

    CACI International

    Springfield, VA
    1 day ago
  • $145k - $155k

     ...technically. Shape the architecture. At D2 Tech Services, Senior Systems Engineers aren't order-takers - they're the people who look at a...  ...Juniper / Cisco networking Cisco ASA / Palo Alto firewall engineering VMware infrastructure and architectures, virtual... 
    Senior
    Immediate start

    D2 Technical Services

    Springfield, VA
    2 days ago
  •  ...impactful work. Position Overview We are seeking a Systems Engineer to support the design, deployment, administration, security,...  ...and troubleshoot TCP/IP networking, routing, DNS, VLANs, firewalls, proxies, and application connectivity. Troubleshoot REST... 
    Senior
    For contractors
    Remote work
    Flexible hours

    Edgesource

    Springfield, VA
    4 days ago
  • $113.2k - $237.8k

    Job Title: Senior Mac EngineerJob Category: Information TechnologyTime Type: Full timeMinimum...  ...:CACI is seeking a Senior Mac Engineer to support a Department of Homeland Security...  ...encryption, certificates, authentication, firewall, and endpoint protection.• Analyze and... 
    Senior
    Contract work
    Work experience placement
    Flexible hours

    CACI International

    Arlington, VA
    1 day ago
  • Fairfax County Government's Stormwater Planning Division seeks an Engineer IV to provide technical oversight for floodplain management, NFIP/CRS participation, and related activities. The role includes reviewing studies, maintaining DFIRMs, and ensuring compliance with... 
    Senior

    Austincc

    Burke, VA
    1 day ago
  •  ...Senior VDI Engineer Springfield, VA OR Arnold, MO - Candidates can reside near either location 150k-160k/year TS/SCI Clearance Required - Must be eligible for CI Poly NGA - Contract runs through 2032 Marathon TS is seeking an experienced VDI Engineer to support... 
    Senior
    Contract work

    Marathon TS

    Springfield, VA
    2 hours ago
  • $176.8k - $187.2k

     ...on-premises computer, networking, and storage technologies using Azure cloud. Cloud Engineer leads the design and support of large-scale projects. Configure routers, switches, firewalls, and other appliances in compliance with Client security standards; Monitor security... 
    Senior
    Full time
    Work from home
    Flexible hours

    AHU Technologies Inc

    Washington DC
    14 days ago
  • $130k - $190k

    Modern Technology Solutions, Inc. (MTSI) is hiring a Senior Digital MBSE Engineer to work in Springfield, VA. Qualified candidates must be U.S. citizens with an active TS/SCI clearance and be eligible to obtain a CI Poly.Responsibilities:• Build and operate the modeling... 
    Senior
    Contract work

    Modern Technology Solutions

    Springfield, VA
    5 days ago
  • $115k - $145k

    GovCIO is seeking a Senior Systems Administrator with strong hands‑on experience supporting and maintaining Microsoft Endpoint Configuration...  ...networking fundamentals relevant to MECM operations (firewalls, boundaries, DP placement, bandwidth considerations).Experience... 
    Senior

    Govcio

    Alexandria, VA
    5 days ago
  • $120k - $160k

     ...Date Posted: 2026-09-28 Category: Cyber Subcategory: Cyber Engineer Schedule: Full-Time Shift: Evening Job Travel: No...  ...Description This is an opening for a Firewall Operations Engineer to support a Department of State (DoS) Bureau... 
    Full time
    Interim role
    Work at office
    Remote work
    Shift work
    Afternoon shift

    SAIC

    Springfield, VA
    1 day ago
  • $135k - $185k

    OverviewVTG is looking for a Senior Systems Engineer in Springfield, VA.What will you do?Systems Engineers employ a multi-discipline approach to requirements engineering, solutions engineering, scheduling, reliability, resiliency, services development, integration, test... 
    Senior
    Work experience placement
    Remote work

    VTG

    Springfield, VA
    3 days ago
  • $190k - $304k

    ResponsibilitiesPeraton is seeking an experienced Senior Unified Communications Engineer, to join our dynamic Network and Unified Communications Architecture...  ..., monitoring, troubleshooting, and analysis of firewalls, Intrusion Detection Systems (IDS), Virtual Private Networks... 
    Senior
    Contract work
    Shift work

    Peraton Corporation

    Arlington, VA
    1 day ago
  • $117k - $128k

     ...Job Description Job Description Palo Alto Firewall Engineer / SME (PCNSE) Cyber Security Engineering Specialist III - Firewall Services Location: Springfield, VA - on site Time Type: Full time, Exempt Clearance Required to Start: Active TS/SCI (U.S. citizenship... 
    Full time
    Contract work
    Local area

    RISA

    Springfield, VA
    26 days ago
  • $150k

     ...Job Description Job Description Job Title: Palo Alto Firewall Engineer Location: Springfield, VA Type: Contract To Hire Compensation: $80/hr. W2 Benefits available Conversion Salary: $150,000 annually plus benefits Work Model: Onsite Security Clearance: Active... 
    Contract work
    Local area
    Weekend work
    Afternoon shift

    System One

    Springfield, VA
    21 days ago
  • $112k - $179k

    ResponsibilitiesWe are seeking an experienced Senior Systems Engineer to support mission-critical geospatial intelligence initiatives across the National System for Geospatial-Intelligence (NSG), Allied System for Geospatial-Intelligence (ASG), and other Federal Government... 
    Senior
    Contract work
    Shift work

    Peraton Corporation

    Springfield, VA
    4 days ago
  •  ...The Senior Cybersecurity Engineer will directly report to the Chief of Cyber Engineering. The candidate will leverage previous experience within...  ...security, operating systems, security technologies (e.g., firewalls, intrusion detection systems, SIEM), and cybersecurity... 
    Senior
    Contract work

    Verigent

    Springfield, VA
    2 hours ago
  • $135k - $216k

    Responsibilities Senior-level Systems Engineers guide engineering teams in taking a multi-discipline approach to requirements engineering, solutions engineering, scheduling, reliability, resiliency, services development, integration, test and evaluation, maintainability... 
    Senior
    Contract work
    Work experience placement
    Work at office
    Remote work
    Shift work

    Peraton Corporation

    Springfield, VA
    5 days ago
  •  ...health, transportation, and citizen services. We’re a nonprofit engineering, applied research, and advanced technology organization...  ...and actionable deliverables; communicate technical concepts to senior decision makers; and align capabilities to enterprise-wide mission... 
    Senior
    Internship
    Local area

    Mitre

    Springfield, VA
    1 day ago
  • $103.8k - $218.1k

    Job Title: Senior Electrical EngineerJob Category: EngineeringTime Type: Full timeMinimum Clearance Required to Start: TS/SCIEmployee...  ...Local* * *The Opportunity:CACI is seeking experienced Electrical Engineers, Senior to support facilities engineering, infrastructure... 
    Senior
    Contract work
    For contractors
    Work experience placement
    For subcontractor
    Local area
    Flexible hours

    CACI International

    Springfield, VA
    1 day ago
  •  ...Senior Telecommunications EngineerFairfax, VA (100% remote) 12+ Months Web Cam Interview...  ...medium and large-scale infrastructures.Engineering Analysis: Conduct in-depth engineering analysis...  ...including gateways, routers, switches, firewalls, DNS, DHCP, network servers,... 
    Senior
    Local area
    Remote work

    Syntricate Technologies

    Fairfax, VA
    4 days ago
  • $135k - $216k

    Responsibilities We are seeking a Senior-Level GEOINT Systems Engineer with hands-on experience across the Systems Engineering & Integration Lifecycle (e.g., Architecture, Requirements, CONOPS, Integration, Test, Transition) to support a variety of enterprise transformation... 
    Senior
    Contract work
    Work experience placement
    Shift work

    Peraton Corporation

    Springfield, VA
    5 days ago
  • $134.1k - $241.4k

     ...full potential. Unleash your talent and redefine what’s possible.Job Description:Parsons Corporation is seeking to hire a Senior level Systems Engineer for a U.S. Government contract in support of the National Geospatial-Intelligence Agency (NGA). The Systems Engineer... 
    Senior
    Full time
    Contract work
    Flexible hours

    Parsons

    Springfield, VA
    3 days ago
  •  ...Senior Systems Engineer Specializing In Sensor IntegrationWe are seeking a highly motivated and experienced Senior Systems Engineer specializing in Sensor Integration to join our dynamic team. This role is ideal for professionals with a strong background in systems engineering... 
    Senior

    Navstar

    Springfield, VA
    3 days ago
  • $92.3k - $166.85k

     ...About the Role:Leidos is seeking a Network Engineer to lead vulnerability management and...  ...Report program status, risks, and metrics to senior leadership. •Lead emergency response to...  ....•Expert knowledge of F5, Cisco, firewalls, and enterprise network infrastructure.•... 
    Senior
    Full time

    Leidos

    Washington DC
    4 days ago
  • $160k - $200k

     ...Senior Systems Engineer: The Senior Systems Engineer will create and maintain accurate records in JIRA and Confluence of past, existing and planned work in the form of Solution Epic Light Weight Business Cases, Solution Epic Minimum Viable Product Functions, Program... 
    Senior
    For contractors
    Work at office

    TRIAEM LLC

    Springfield, VA
    4 days ago
  • $156k - $239.2k

     ...automation, high availability, and ArcGIS. As a senior technical resource, you`ll guide...  ...influence technical strategy, and mentor other engineers.Esri has a Relocation Assistance Program...  ...(such as domains, directories, DNS, firewalls, proxies, load-balancing)Experience with... 
    Senior
    Relocation
    Relocation package

    ESRI

    Vienna, VA
    15 hours ago
  • $156k - $239.2k

     ...deployments supporting Defense and Intelligence operations.As a Senior System Engineer, you will architect and optimize enterprise scale...  ...network concepts and topics (such as domains, directories, DNS, firewalls, proxies, load-balancing)Experience with at least one RDBMS... 
    Senior
    Relocation
    Relocation package

    ESRI

    Vienna, VA
    3 days ago

Do you want to receive more vacancies?

Subscribe and receive similar vacancies to Senior Firewall Engineer. Be the first to apply!