{"id":2261473,"url":"https://alion.io/job/general-dynamics-information-technology-senior-ai-engineer-tssci-with-polygraph","title":"Senior AI Engineer - TS/SCI with Polygraph","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":100,"open_postings":27,"ghost_share":0,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":39,"computed_at":"2026-10-30T05:48:23Z"}},"role":"AI/ML","role_family":"AI/ML","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":127500,"max":172500,"currency":"USD","period":"year","gross":null,"usd_annual":172500},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"AI Agents","optional":false},{"name":"Computer Vision","optional":false},{"name":"CrewAI","optional":false},{"name":"Java","optional":false},{"name":"LangChain","optional":false},{"name":"Machine Learning","optional":false},{"name":"NLP","optional":false},{"name":"Python","optional":false},{"name":"Recommender Systems","optional":false},{"name":"Agile","optional":true},{"name":"Reinforcement Learning","optional":true}],"status":"live","first_seen_at":"2026-10-08T00:00:00Z","employer_posted_date":"2026-10-08","last_verified_at":"2026-10-31T02:47:24Z","board_verified":true,"closed_at":null,"days_open":23,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":23},"description":"Type of Requisition:\nRegularClearance Level Must Currently Possess:\nTop Secret SCI + PolygraphClearance Level Must Be Able to Obtain:\nTop Secret SCI + PolygraphPublic Trust/Other Required:\nNoneJob Family:\nData Science and Data EngineeringJob Qualifications:\nSkills:\nArtificial Intelligence (AI), Machine Learning (ML), Natural Language Processing (NLP)Certifications:\nNoneExperience:\n5 + years of related experienceUS Citizenship Required:\nYesJob Description:\nSeize your opportunity to make a personal impact as an AI Engineer supporting national security activities. GDIT is your place to make meaningful contributions to challenging projects and grow a rewarding career.\nAt GDIT, people are our differentiator. As an AI Engineer, you will help ensure today is safe and tomorrow is smarter. Our work depends on an AI Engineer joining our team to support our intelligence customer in Chantilly, VA.\nHow an AI Engineer Will Make an Impact:\nDevelops innovative AI-driven solutions to solve complex problems and enhance business processes.\nCollects, cleans, and preprocesses large volumes of structured and unstructured data from various sources, ensuring data quality, integrity and relevance for model training and evaluation.\nTrains, validates, and optimizes large language models using state-of-the-art techniques and frameworks. Evaluates model performance, interpret results, and iterate on model design as needed.\nExtracts, selects, and engineers relevant features from raw data to improve model performance and generalization capabilities. Utilizes domain knowledge and data exploration techniques to identify informative features.\nMonitors model performance, reliability, and scalability in production environments, implementing automated monitoring and alerting systems to detect anomalies and performance degradation.\nDocuments technical designs, implementation details, and best practices for AI solutions.\nCollaborates with cross-functional teams to include data scientists, software engineers, product managers, and other stakeholders to understand requirements, prioritize projects and delivery impactful AI Solutions.\nWhat You'll Need to Succeed:\nEducation: Bachelor's degree in Engineering, Computer Science, or other related analytical, scientific, or technical discipline.\nRequired Experience: 5+ years of related experience.\nRequired Technical Skills: Experience with designing, developing, implementing and using machine learning algorithms and large language models to address business challenges and opportunities, such as predictive analytics, natural language processing, computer vision and recommender systems; understanding of Agentic AI frameworks (e.g. Pydantics, CrewAI, Langchain), proficiency in programming languages such as Python and Java.\nSecurity Clearance Level: TS/SCI w/ Polygraph\nRequired Skills and Abilities: Works independently under general supervision, strong documentation and communication skills, strong user interaction and business analysis skills.\nPreferred Skills: Understanding of machine learning algorithms, including supervised and unsupervised learning, deep learning, reinforcement learning, Large Language Models, generative AI and ensemble methods; familiarity with machine learning libraries and frameworks; knowledge of software development best practices, version control systems and agile methodologies.\nLocation: On Customer Site.\nUS Citizenship Required.\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 Explore a career in data science and engineering at GDIT and you’ll find endless opportunities to grow alongside colleagues who share your determination for solving complex data challenges.\nThe likely salary range for this position is $127,500 - $172,500. 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:\nOnsiteWork Location:\nUSA VA ChantillyAdditional 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":6690,"description_truncated":false,"requirements":{"experience_years_min":5,"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":["Government","Military","Professional Services","National Security"],"lifecycle":[{"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":"2026-10-29T16:27:21+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":17}],"liveness":{"score":80,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.888,"p_room":0.9,"age_days":22,"expected_fill_days":39,"reasons":["conf:0","velocity","win:mid","comp:brand"],"computed_at":"2026-10-30T05:48:23Z"},"pay":{"stated_usd_annual":172500,"is_top_pay":false},"html_url":"https://alion.io/job/general-dynamics-information-technology-senior-ai-engineer-tssci-with-polygraph","json_url":"https://alion.io/job/general-dynamics-information-technology-senior-ai-engineer-tssci-with-polygraph.json","meta":{"generated_at":"2026-10-31T05:02:46Z","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":7145,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-01T00:00:00Z"}},"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-senior-ai-engineer-tssci-with-polygraph"},{"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-senior-ai-engineer-tssci-with-polygraph"},{"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-senior-ai-engineer-tssci-with-polygraph"},{"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-senior-ai-engineer-tssci-with-polygraph\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fgeneral-dynamics-information-technology-senior-ai-engineer-tssci-with-polygraph"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":2261473}},{"tool":"search_jobs","arguments":{"company":"gdit.com","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":2261473},"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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