{"id":730698,"url":"https://alion.io/job/d2consulting-senior-firewall-engineer","title":"Senior Firewall Engineer","company":{"id":673019,"name":"D2 Consulting","domain":"d2consulting.com","url":"https://alion.io/company/d2consulting","size_band":"11-50","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"B","score":75,"open_postings":24,"ghost_share":0.417,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":58,"computed_at":"2026-10-27T05:46:45Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Springfield, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":130000,"max":140000,"currency":"USD","period":"year","gross":null,"usd_annual":140000},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"VMWare","optional":false},{"name":"Windows","optional":false}],"status":"live","first_seen_at":"2026-02-17T20:30:36Z","employer_posted_date":"2026-08-24","last_verified_at":"2026-10-27T13:08:33Z","board_verified":true,"closed_at":null,"days_open":251,"trust":{"level":"ghost","repost_count":0,"flags":["stale","company_stale"],"days_open":251},"description":"**ACTIVE TS/SCI SECURITY CLEARANCE REQUIRED**\nD2 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.\nWhat You'll Actually Be Doing\nThis isn't a \"maintain the status quo\" role. You'll be solving real security challenges at enterprise scale:\nDesign & build state-of-the-art secure network architectures - from concept to implementation\nProtect the network by managing WAN, LAN, CAN, and remote security environments, handling incidents with speed and precision\nOwn the security stack - firewalls, F5 load balancers, web/mail gateways, IDS platforms, and management tools\nLead incident response - investigate, document, and drive corrective action when it matters most\nShape security operations by developing SOPs that the broader team will rely on\nStay ahead of threats by researching and evaluating emerging network security technologies\nBe the expert in the room - serve as a trusted liaison to contract leadership, customers, and government DAA stakeholders on security posture, policies, and procedures\nWhat You Bring to the Team\nRequired Clearance & Certifications:\nActive TS/SCI clearance (must be current)\nAbility to pass a U.S. Government Polygraph (post-hire)\n DoD 8140.01 / 8570.01-M IAT Level II compliant certification (current)\nCSSP Infrastructure Support certification - or the drive to earn it within 120 days of starting\nExperience:\n5+ years in Network Security within large-scale enterprise or global environments\nBA/BS degree preferred - but strong hands-on experience can speak just as loudly. You can substitute a degree with 4 years of additional experience\nFirewalls: Palo Alto, Juniper, Cisco\nRouters/Switches: Juniper, Cisco\nIDS/Threat Tools: FireEye, F5 Load Balancer, Cisco FTD\nOS/Platforms: Unix, RHEL, Windows Enterprise AD, VMware\nWhy This Role?\nYou'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.\nAdditional Information\nAll your information will be kept confidential according to EEO guidelines.\nCompensation 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.\nHighlights of our benefits include Health/Dental/Vision, 401(k) match, Accrued PTO, STD/LTD/Life Insurance, Referral Bonuses, professional development reimbursement, and more!\nD2 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.","description_format":"text","description_chars":3376,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":true,"languages":[]},"benefits":["Life insurance","Professional development"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["Digital Government","IT Consulting & Digital Transformation"],"lifecycle":[{"event":"open","at":"2026-09-11T09:42:11Z"}],"visa":[],"liveness":{"score":8,"band":"cold","label":"Long shot","p_open":1,"p_active":0.283,"p_room":0.28,"age_days":251,"expected_fill_days":58,"reasons":["conf:1","ghost","win:tail","crowd:"],"computed_at":"2026-10-27T05:46:45Z"},"pay":{"stated_usd_annual":140000,"is_top_pay":true},"html_url":"https://alion.io/job/d2consulting-senior-firewall-engineer","json_url":"https://alion.io/job/d2consulting-senior-firewall-engineer.json","meta":{"generated_at":"2026-10-27T16:13:33Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":5490,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-28T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":673019},"rest":"https://alion.io/mcp/rest/get_company?id=673019"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fd2consulting-senior-firewall-engineer"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fd2consulting-senior-firewall-engineer"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fd2consulting-senior-firewall-engineer"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/d2consulting-senior-firewall-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fd2consulting-senior-firewall-engineer"}]}