{"id":3228951,"url":"https://alion.io/job/gci-front-end-software-engineer-tssci-with-poly-required","title":"Front-End Software Engineer (TS/SCI with Poly Required)","company":{"id":4429519,"name":"GCI","domain":"gci.tech","url":"https://alion.io/company/gci-7","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"UltiPro","truth_index":{"grade":"B","score":75,"open_postings":9,"ghost_share":0,"stale_share":1,"repost_share":0,"time_to_fill_p50_days":34,"computed_at":"2026-11-03T05:54:40Z"}},"role":"Frontend","role_family":"Frontend","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":["Chantilly, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":164382,"max":274518,"currency":"USD","period":"year","gross":null,"usd_annual":274518},"salary_estimate":null,"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"Angular","optional":false},{"name":"ElasticSearch","optional":false},{"name":"Git","optional":false},{"name":"JavaScript","optional":false},{"name":"Linux","optional":false},{"name":"Node JS","optional":false},{"name":"Sass","optional":false},{"name":"TypeScript","optional":true}],"status":"live","first_seen_at":"2026-10-20T14:16:55Z","employer_posted_date":"2026-10-20","last_verified_at":"2026-11-03T13:57:33Z","board_verified":true,"closed_at":null,"days_open":14,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":14},"description":"GCI embodies excellence, integrity and professionalism. The employees supporting our customers deliver unique, high-value mission solutions while effectively leverage the technological expertise of our valued workforce to meet critical mission requirements in the areas of Data Analytics and Software Development, Engineering, Targeting and Analysis, Operations, Training, and Cyber Operations. We maximize opportunities for success by building and maintaining trusted and reliable partnerships with our customers and industry.\nAt GCI, we solve the hard problems. As a Front-End Software Engineer, a typical day will include the following duties:\nJOB DESCRIPTION\nThe Front-End Software Engineer will design and develop complex new software products, or make significant enhancements to existing software. The ideal candidate is a hands-on developer with significant experience in building modular, reusable components and features. They must have extensive, firsthand technical expertise in a modern front-end framework. They must be at ease working in an Agile environment with little supervision. This person should embody a passion for continuous improvement and innovation.\nKEY RESPONSIBILITIES\nBuild reusable components that align with the system design patterns.\nOptimize application for maximum speed and scalability.\nParticipate in team design and code reviews.\nCollaborate with a small team of engineers and designers to understand business requirements and user experience goals.\nProvide recommendations for continuous improvement.\nProvide ongoing maintenance, support, and enhancements in existing systems and platforms.\nTroubleshoots complex problems and provides customer support for software systems and application issues.\nEDUCATION AND EXPERIENCE\nBachelor’s Degree in Computer Science, Electrical or Computer Engineering or a related technical discipline, or the equivalent combination of education, technical training, or work/military experience.\n8 to 10 years of related software development experience.\nREQUIRED QUALIFICATIONS\nExtensive experience with Angular\nExpert knowledge of Javascript, HTML, and CSS.\nExperience designing complex search interfaces.\nExperience in optimizing web applications for performance and usability.\nExperience with integrating with third part APIs.\nProficient understanding of code versioning tools, such as Git\nExperience with Linux operating systems\nDESIRED QUALIFICATIONS\nExperience with SASS or LESS.\nHands-on experience working with NodeJS, MongoDB\nFamiliarity constructing ElasticSearch queries\n*A candidate must be a US Citizen and able to obtain TS/SCI with Polygraph clearance.\nEqual Opportunity Employer / Individuals with Disabilities / Protected Veterans","description_format":"text","description_chars":2716,"description_truncated":false,"requirements":{"experience_years_min":8,"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","Homeland Security"],"lifecycle":[{"event":"open","at":"2026-10-25T07:25:16Z"}],"visa":[],"liveness":{"score":81,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":0.9,"age_days":13,"expected_fill_days":34,"reasons":["conf:1","velocity","win:mid"],"computed_at":"2026-11-03T05:54:40Z"},"pay":{"stated_usd_annual":274518,"is_top_pay":true},"html_url":"https://alion.io/job/gci-front-end-software-engineer-tssci-with-poly-required","json_url":"https://alion.io/job/gci-front-end-software-engineer-tssci-with-poly-required.json","meta":{"generated_at":"2026-11-03T16:55:38Z","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":23478,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-04T00:00:00Z"}},"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":4429519},"rest":"https://alion.io/mcp/rest/get_company?id=4429519"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fgci-front-end-software-engineer-tssci-with-poly-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%2Fgci-front-end-software-engineer-tssci-with-poly-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%2Fgci-front-end-software-engineer-tssci-with-poly-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/gci-front-end-software-engineer-tssci-with-poly-required\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fgci-front-end-software-engineer-tssci-with-poly-required"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3228951}},{"tool":"search_jobs","arguments":{"company":"gci.tech","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3228951},"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. Docs: https://alion.io/developers"}}