{"id":105325,"url":"https://alion.io/job/general-dynamics-information-technology-network-engineer-senior-security-tssci-required","title":"Network Engineer Senior (Security) – TS/SCI required","company":{"id":4418,"name":"General Dynamics Information Technology","domain":"gdit.com","url":"https://alion.io/company/gdit","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Workday","truth_index":{"grade":"A","score":95,"open_postings":39,"ghost_share":0,"stale_share":0.41,"repost_share":0,"time_to_fill_p50_days":10,"computed_at":"2026-10-27T05:46:45Z"}},"role":"Networking","role_family":"Networking","seniority":"senior","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Fort Belvoir, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":140250,"max":189750,"currency":"USD","period":"year","gross":null,"usd_annual":189750},"salary_estimate":null,"experience_years_min":10,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Ansible","optional":false},{"name":"PowerShell","optional":false},{"name":"Python","optional":false},{"name":"Tcpdump","optional":false},{"name":"Terraform","optional":false},{"name":"VPN","optional":false},{"name":"Wireshark","optional":false}],"status":"live","first_seen_at":"2026-07-07T00:00:00Z","employer_posted_date":"2026-08-26","last_verified_at":"2026-10-24T08:05:52Z","board_verified":false,"closed_at":null,"days_open":112,"trust":{"level":"stale","repost_count":0,"flags":["stale"],"days_open":112},"description":"Type of Requisition:\nRegularClearance Level Must Currently Possess:\nTop Secret/SCIClearance Level Must Be Able to Obtain:\nTop Secret SCI + PolygraphPublic Trust/Other Required:\nNoneJob Family:\nIT Infrastructure and OperationsJob Qualifications:\nSkills:\nNetwork Engineering, Network Infrastructures, Networking HardwareCertifications:\nNoneExperience:\n10 + years of related experienceUS Citizenship Required:\nYesJob Description:\nNetwork Engineer Senior (Security) - TS/SCI required\nTransform technology into opportunity as a Network Engineer Senior (Security) at GDIT. Shape what’s next for mission-critical government projects while shaping what’s next for your career.\nMEANINGFUL WORK AND PERSONAL IMPACT\nAs a Network Engineer Senior (Security), the work you’ll do at GDIT will be impactful to the mission of US Army Intelligence and Security Command (INSCOM ). You will play a crucial role in supporting the INSCOM mission.\nInstall, configure, and maintain customer network infrastructure and security stack as part of a global enterprise.\nTroubleshoot networking and security protocols/technologies, including switching, routing, and security (e.g., Layer 4-7, firewall, Site-to-Site VPN, DMVPN, etc) to resolve problems on the customer information system.\nAnalyze, plan, and implement access control lists (ACL), firewall policies, and other logical security controls in a multi-vendor security stack.\nProvide expert-level (Tier 3) network security engineering support for INSCOM activities in the National Capital Area. \nCollaborate with teams of various technical discipline to solve enterprise IT problems from a holistic perspective.\nConfigure load balancing and authentication policies on F5 BIG-IP to support web application hosting.\nWHAT YOU’LL NEED TO SUCCEED:\nEducation: Bachelor's Degree with 12 years of experience or Master's Degree with 10 years of experience\n Required Skillset:Excellent attention to detail\nExcellent communications skills and ability to interact with both clients and teammates\nExperience with configuring, integrating, and troubleshooting security appliances in a multi-vendor federal enterprise environment\nExperience with the behavior of routing protocols in Next Generation Firewalls\nExperience with Network Automation tools, scripting languages, or Infrastructure as Code tools (e.g. NetBrain, Python, PowerShell, APIs, Terraform, Ansible)\nIntermediate knowledge of F5 BIG-IP deployment and configuration with Local Traffic Manager and Application Security Manager\nHardening network devices in accordance with STIGS/NIST and industry best practices\nExperience with packet analysis tools such as TCPDump and Wireshark\nExperience working in a large SDLC environment\n\nSecurity Clearance Level: TS/SCI\n Required Certification(s):DoD 8570/8140 Computing Environment (CE) Certification as determined by the Program Manager is required prior to support on contract\nRequired Security Environment Certification:Cisco Certified Network Professional - Security\nCisco Certified Network Professional - Enterprise\nPalo Alto Networks Certified Network Security Engineer\n\nLocation: On Customer Site\n Additional:Candidates must be willing and able to attain a CI Polygraph for certain positions as determined by the contract\nPosition may require lifting of objects (i.e. IT Hardware), reaching/bending/kneeling (i.e. plug in cables) and other moderately strenuous activity\nTravel may be required to support the mission\n\nGDIT IS YOUR PLACE\nAt GDIT, the mission is our purpose, and our people are at the center of everything we do.\nGrowth: AI-powered career tool that identifies career steps and learning opportunities\nSupport: An internal mobility team focused on helping you achieve your career goals\nRewards: Comprehensive benefits and wellness packages, 401K with company match, and competitive pay and paid time off\nCommunity: Award-winning culture of innovation and a military-friendly workplace\nOWN YOUR OPPORTUNITY\nExplore a career in program management at GDIT and you’ll find endless opportunities to grow alongside colleagues who share your passion for the mission and delivering results.\nThe likely salary range for this position is $140,250 - $189,750. This is not, however, a guarantee of compensation or salary. Rather, salary will be set based on experience, geographic location and possibly contractual requirements and could fall outside of this range.Scheduled Weekly Hours:\n40Travel Required:\n10-25%Telecommuting Options:\nOnsiteWork Location:\nUSA VA Fort BelvoirAdditional Work Locations:\nTotal Rewards at GDIT:\nOur benefits package for all US-based employees includes a variety of medical plan options, some with Health Savings Accounts, dental plan options, a vision plan, and a 401(k) plan offering the ability to contribute both pre and post-tax dollars up to the IRS annual limits and receive a company match. To encourage work/life balance, GDIT offers employees full flex work weeks where possible and a variety of paid time off plans, including vacation, sick and personal time, holidays, paid parental, military, bereavement and jury duty leave. To ensure our employees are able to protect their income, other offerings such as short and long-term disability benefits, life, accidental death and dismemberment, personal accident, critical illness and business travel and accident insurance are provided or available. We regularly review our Total Rewards package to ensure our offerings are competitive and reflect what our employees have told us they value most.Our Identity Verification Process:\nAs part of the hiring process, we will ask you to complete an identity verification process that leverages advanced biometrics and artificial intelligence to ensure authenticity and protect against identity fraud. You are expected to be on camera during virtual interviews. We reserve the right to take your picture to verify your identity and prevent fraud. By proceeding, you authorize the collection, processing, and use of your biometric data for identity verification and security purposes.About Our Work:\nWe are GDIT. A global technology and professional services company that delivers technology solutions and mission services to every major agency across the U.S. government, defense and intelligence community. Our 26,000 experts extract the power of technology to create immediate value and deliver solutions at the edge of innovation. We operate across 50+ countries worldwide, offering leading mission-ready capabilities in AI, cloud, cyber and software development.Join our Talent Community to stay up to date on our career opportunities and events atgdit.com/tc.\nEqual Opportunity Employer / Individuals with Disabilities / Protected Veterans","description_format":"text","description_chars":6704,"description_truncated":false,"requirements":{"experience_years_min":10,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":true,"languages":[]},"benefits":["401k plan"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-07-07T00:00:00Z"},{"event":"open","at":"2026-10-14T02:00:51Z"}],"visa":[{"country":"US","licensed_sponsor":true,"evidence":"H-1B filings in 12 months: 21 · green card filings: 4","filings_12m":21,"filings_prev_12m":30,"green_card_filings_12m":4,"median_offered_wage_usd":154900,"route":null,"cap_exempt":false,"checked_at":"2026-10-15T11:24:14+00:00","sources":["US Department of Labor: LCA disclosure data (H-1B, H-1B1, E-3)","US Department of Labor: PERM disclosure data (green cards)"],"filings_for_role_12m":0}],"liveness":{"score":5,"band":"cold","label":"Long shot","p_open":0.9,"p_active":0.21,"p_room":0.28,"age_days":112,"expected_fill_days":10,"reasons":["conf:69","velocity","win:tail","crowd:brand"],"computed_at":"2026-10-27T05:46:45Z"},"pay":{"stated_usd_annual":189750,"is_top_pay":true},"html_url":"https://alion.io/job/general-dynamics-information-technology-network-engineer-senior-security-tssci-required","json_url":"https://alion.io/job/general-dynamics-information-technology-network-engineer-senior-security-tssci-required.json","meta":{"generated_at":"2026-10-27T06:06:06Z","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":6150,"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":4418},"rest":"https://alion.io/mcp/rest/get_company?id=4418"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fgeneral-dynamics-information-technology-network-engineer-senior-security-tssci-required"},{"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%2Fgeneral-dynamics-information-technology-network-engineer-senior-security-tssci-required"},{"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%2Fgeneral-dynamics-information-technology-network-engineer-senior-security-tssci-required"},{"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/general-dynamics-information-technology-network-engineer-senior-security-tssci-required\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fgeneral-dynamics-information-technology-network-engineer-senior-security-tssci-required"}]}