{"id":2752493,"url":"https://alion.io/job/general-dynamics-information-technology-senior-software-engineer-secret-clearance-preferred-onsite","title":"Senior Software Engineer - Secret Clearance Preferred – Onsite","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":31,"ghost_share":0,"stale_share":0.387,"repost_share":0,"time_to_fill_p50_days":10,"computed_at":"2026-10-20T05:45:00Z"}},"role":"Backend","role_family":"Backend","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":["Oakton, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":119000,"max":161000,"currency":"USD","period":"year","gross":null,"usd_annual":161000},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"ETL/ELT","optional":false},{"name":"SQL","optional":false},{"name":"C++","optional":true},{"name":"Linux","optional":true},{"name":"Python","optional":true},{"name":"Ruby","optional":true}],"status":"live","first_seen_at":"2026-10-16T00:00:00Z","employer_posted_date":"2026-10-16","last_verified_at":"2026-10-20T13:41:36Z","board_verified":true,"closed_at":null,"days_open":4,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":4},"description":"Type of Requisition:\nRegularClearance Level Must Currently Possess:\nNoneClearance Level Must Be Able to Obtain:\nSecretPublic Trust/Other Required:\nNoneJob Family:\nSoftware EngineeringJob Qualifications:\nSkills:\nApplication Development, Software Development, Software Development Life Cycle (SDLC)Certifications:\nNoneExperience:\n5 + years of related experienceUS Citizenship Required:\nYes Job Description:\nGDIT is seeking a Senior Software Engineer to join our team.\nThis challenging and interesting software engineering/development position is a chance to participate in the development and operation of a high-performance big data system, and join a longstanding, stable program consisting of a team of individuals using defined Agile software principles and practices. As a Senior Software Engineer, you’ll perform software requirements analysis, participate in research, design, development, testing, and maintenance of an operational big data system.\nDeliver simple solutions to complex problems as a Senior Software Engineer at GDIT. Here, you’ll tailor cutting-edge solutions to the unique requirements of our clients. With a career in application development, you’ll make the end user’s experience your priority and we’ll make your career growth ours.\nUS Citizenship is required. Active Secret clearance is preferred. If candidate does not have an active clearance, GDIT will sponsor the clearance upon contingent offer. The work must be performed onsite (no remote work).\nWHAT YOU’LL NEED TO SUCCEED:\nDemonstrated understanding of software engineering concepts, principles, and applications\nExperience with database technologies, and an understanding of SQL, ETL, indexing, and performance\nIn-depth understanding of object-oriented and functional programming, design patterns, data structures, and algorithms\nEducation: Bachelor’s degree in software engineering or a related technical field.\nRequired Experience: 5+ years of related experience\nPreferred Skills:\nModern C++ versions (C++11/14/17/20) in a Linux development environment\nScripting languages such Python, Ruby, bash\nVery large databases/big data/data warehousing\nNoSQL database technologies such as MongoDB\nMulti-threaded and multi-process applications\nWhat sets you apart:\nAbility to interact and collaborate effectively with project teams, managers, and end users\nCommitment to ongoing professional development\nSolid ability to grasp and apply new information quickly and handle increasing responsibilities with growing complexity\nCreative and innovative thinking with the ability to multi-task\nCLEARANCE REQUIREMENTS:\nDepartment of War Secret security clearance is required before starting on program. Applicants selected will be subject to a government background investigation and must meet eligibility and suitability requirements. Due to the nature of work performed within our facilities, U.S. citizenship is required.\nGDIT IS YOUR PLACE:\n401K with company match\nComprehensive health and wellness packages\nInternal mobility team dedicated to helping you own your career\nProfessional growth opportunities including paid education and certifications\nCutting-edge technology you can learn from\nRest and recharge with paid vacation and holidays\nThe likely salary range for this position is $119,000 - $161,000. 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 OaktonAdditional 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":5794,"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","Growth opportunities","Professional development"],"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":"2026-10-17T00:26:55Z"}],"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":15}],"liveness":{"score":78,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.868,"p_room":0.9,"age_days":4,"expected_fill_days":10,"reasons":["conf:41","velocity","win:mid","comp:brand"],"computed_at":"2026-10-20T05:45:00Z"},"pay":{"stated_usd_annual":161000,"is_top_pay":false},"html_url":"https://alion.io/job/general-dynamics-information-technology-senior-software-engineer-secret-clearance-preferred-onsite","json_url":"https://alion.io/job/general-dynamics-information-technology-senior-software-engineer-secret-clearance-preferred-onsite.json","meta":{"generated_at":"2026-10-20T13:42:16Z","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":15312,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-21T00:00:00Z"}},"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-software-engineer-secret-clearance-preferred-onsite"},{"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-software-engineer-secret-clearance-preferred-onsite"},{"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-software-engineer-secret-clearance-preferred-onsite"},{"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-software-engineer-secret-clearance-preferred-onsite\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fgeneral-dynamics-information-technology-senior-software-engineer-secret-clearance-preferred-onsite"}]}