{"id":4159724,"url":"https://alion.io/job/general-dynamics-information-technology-sr-f5-application-delivery-engineer","title":"Sr. F5 Application Delivery Engineer","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":51,"ghost_share":0,"stale_share":0.176,"repost_share":0.059,"time_to_fill_p50_days":37,"computed_at":"2026-11-12T10:38:37Z"}},"role":"Industrial Engineering","role_family":"Industrial Engineering","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":["Bethesda, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":124093,"max":155250,"currency":"USD","period":"year","gross":null,"usd_annual":155250},"salary_estimate":null,"experience_years_min":7,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Ansible","optional":true},{"name":"AWS","optional":true},{"name":"Azure","optional":true},{"name":"GCP","optional":true},{"name":"Linux","optional":true},{"name":"MPLS","optional":true},{"name":"Terraform","optional":true},{"name":"Windows","optional":true}],"status":"live","first_seen_at":"2026-11-12T11:55:55Z","employer_posted_date":"2026-11-12","last_verified_at":"2026-11-12T11:55:55Z","board_verified":true,"closed_at":null,"days_open":0,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":0},"description":"Type of Requisition:\nRegularClearance Level Must Currently Possess:\nNoneClearance Level Must Be Able to Obtain:\nNonePublic Trust/Other Required:\nNACI (T1)Job Family:\nCyber and IT Risk ManagementJob Qualifications:\nSkills:\nApplication Delivery, F5 BIG-IP, F5 Load Balancer, F5 LTMCertifications:\nNoneExperience:\n7 + years of related experienceUS Citizenship Required:\nNoJob Description:\nThe Senior Application Delivery Engineer is responsible for the configuration, deployment, and management of the customer’s security appliances and infrastructure in a 24x7x365 environment. The senior engineer is responsible for but not limited to monitoring, configuration changes, accounts, and software updates for the customer’s security appliances for the customer’s Application Delivery infrastructure. The engineer must be able to analyze, troubleshoot, and remediate issues within the enterprise. The engineer will also work closely with other teams to ensure that all security solutions are performing to standard.\nThis position is 3 days a week onsite at 6555 Rock Spring Drive, Bethesda, MD travel is primarily local in the DC metro area.\nResponsibilities:\nServe as Senior Engineer / Administrator of F5 BIG-IP LTM/GTM load balancing.\nPerform F5 configuration and troubleshooting with database and application teams for over 5,000 applications that are load balanced in the Development, Test, Pre-Production, and Production environments.\nWork closely with other IT functional teams to ensure cohesive support and strategies across the IT organization\nImplement configuration changes, manage patching and support firmware lifecycle management\nRespond to incidents and outages, leading major incident bridge calls during production outages\nConduct root cause analyses (RCA) for critical incidents\nSupport security and compliance reviews and ensure all security vulnerabilities are identified and remediated.\nMonitor F5 platform health, review performance metrics and ensure failover readiness\nReview alerts and logs\nMaintain relationships with key Third-Party software/hardware vendors to provide support to the infrastructure as needed.\nRequired Skills:\nBS degree in Computer Science, Information Systems or equivalent\nMinimum 7 years of experience in an Application Delivery role\nMinimum 7 years of experience in a Network Engineering, or Infrastructure Engineering role\nExperience with network infrastructure in enterprise datacenter solutions\n Must have F5 Certified Technology Specialist (F5-CTS) Certification\nDesired Skills:\nF5 Certified Solutions Expert (F5-CSE) certification\nCCNP Enterprise or CCNP Security certifications\nAWS, Azure or Google Cloud certifications\nCisco SISE certification\nExperience configuring 802.1X.\nExperience configuring and implementing network segmentation including VLANs and MPLS.\nExperience with multiple end-system operating systems including Windows, Linux, Mac OS, and Apple IOS\nExperience automating infrastructure using APIs, Ansible, Terraform, or similar tools\nExperience with Forescout security products\nExperience with Cisco wireless LAN controllers.\nThe likely salary range for this position is $124,093 - $155,250. 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:\nNoneTelecommuting Options:\nHybridWork Location:\nUSA MD BethesdaAdditional 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":5670,"description_truncated":false,"requirements":{"experience_years_min":7,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":true,"languages":[]},"benefits":[],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":["National Security","Digital Government","IT Consulting & Digital Transformation","Systems Integrators"],"lifecycle":[{"event":"open","at":"2026-11-12T11:55:55Z"}],"visa":[{"country":"US","licensed_sponsor":true,"adverts_offering_sponsorship_24m":14,"sanctioned_now":false,"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":"2026-11-12T07:36:15+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)","Alion: sponsorship offered in the employer's own job adverts (24 months)"],"filings_for_role_12m":0}],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":0,"expected_fill_days":37,"reasons":["conf:1","win:early","comp:brand"],"computed_at":"2026-11-12T13:41:59Z"},"pay":{"stated_usd_annual":155250,"is_top_pay":true},"html_url":"https://alion.io/job/general-dynamics-information-technology-sr-f5-application-delivery-engineer","json_url":"https://alion.io/job/general-dynamics-information-technology-sr-f5-application-delivery-engineer.json","meta":{"generated_at":"2026-11-12T13:41:59Z","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":28502,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-13T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.1,"usd":0.01,"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-sr-f5-application-delivery-engineer"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":2,"usd":0.2},"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-sr-f5-application-delivery-engineer"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.1,"usd":0.01},"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-sr-f5-application-delivery-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/general-dynamics-information-technology-sr-f5-application-delivery-engineer\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fgeneral-dynamics-information-technology-sr-f5-application-delivery-engineer"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":4159724}},{"tool":"search_jobs","arguments":{"company":"gdit.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":4159724},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. 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