{"id":138769,"url":"https://alion.io/job/general-dynamics-information-technology-core-java-software-engineer-tssci-with-polygraph","title":"Core Java Software 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":95,"open_postings":31,"ghost_share":0,"stale_share":0.387,"repost_share":0,"time_to_fill_p50_days":10,"computed_at":"2026-10-17T05:46:00Z"}},"role":"Backend","role_family":"Backend","seniority":"staff","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":158855,"max":214921,"currency":"USD","period":"year","gross":null,"usd_annual":214921},"salary_estimate":null,"experience_years_min":10,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Apache HTTP Server","optional":false},{"name":"Apache Tomcat","optional":false},{"name":"Git","optional":false},{"name":"GitHub","optional":false},{"name":"Java","optional":false},{"name":"JavaScript","optional":false},{"name":"JQuery","optional":false},{"name":"MariaDB","optional":false},{"name":"MySQL","optional":false},{"name":"OpenSSL","optional":false},{"name":"Rest API","optional":false},{"name":"Spring Boot","optional":false},{"name":"Confluence","optional":true},{"name":"Less","optional":true},{"name":"Python","optional":true}],"status":"live","first_seen_at":"2026-08-26T00:00:00Z","employer_posted_date":"2026-08-26","last_verified_at":"2026-10-17T09:26:18Z","board_verified":true,"closed_at":null,"days_open":52,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":52},"description":"Type of Requisition:\nRegularClearance Level Must Currently Possess:\nTop Secret SCI + PolygraphClearance Level Must Be Able to Obtain:\nNonePublic Trust/Other Required:\nNoneJob Family:\nSoftware EngineeringJob Qualifications:\nSkills:\nApache Tomcat, Java Database Connectivity (JDBC), Java Web DevelopmentCertifications:\nNoneExperience:\n10 + years of related experienceUS Citizenship Required:\nYes Job Description:\nSeize your opportunity to make a personal impact as a Core Java Software Engineer supporting an information technology enterprise. At GDIT, people are our differentiator. As a Core Java Software Engineer, you will help ensure today is safe and tomorrow is smarter. Our work depends on a Core Java Software Engineer joining our team.\nExpert-level knowledge of Core Java (NOT Spring Boot), Eclipse IDE v2026, Java 17 or later, JVM, JRE, and JDK concepts, JavaScript, AJAX, jQuery, JSP, Apache Tomcat 11 or later, Tomcat connector, MariaDB (MySQL) v10 or latest, HTML5, CSS, JSON/XML HTTP, HTTPS, REST API, SSH, PKI, OpenSSL, Putty, Linux and LDAP.\nExtensive experience with LDAP authentication and authorization, and custom LDAP-based solutions.\nStrong experience with SSH and Putty, and custom SSH-based tools and applications on Linux platform.\nExperience with Linux system administration and command-line tools.\nExperience w/ Java REST API development, and API secure requests using application certificates and scalability for user activity monitoring.\nExperienced w/ JDBC, DAO pattern and configuration using MariaDB (MySQL) and custom database tools and scripts - connection pooling without framework.\nExperience deploying applications on Apache Tomcat, configuring Tomcat connectors, and managing HTTPD (Apache HTTP Server).\nExperience w/ front-end development w/ JSP, AJAX, jQuery, JavaScript, HTML and CSS design for web presence and back-end development;\nExperienced writing Jakarta Servlet API, including servlet lifecycle, request and response handling, and session management.\nExperience w/ Java Base64 API, that encodes and decodes data, including its usage and limitations.\nKnowledge of Java Cryptography Architecture (JCA) and its APIs.\nKnowledge of encryption algorithms, such as AES, RSA and ECC and their usage in Java.\nExperience w/Quartz Job Scheduling Library using Core Java development.\nExperience w/ software version control tools (Git/GitHub) code repository;\nKnowledge of PKI infrastructure and secure data transmission, and custom PKI-based tools and applications.\nKnowledge of X.509 certificate handling, including certificate parsing, certificate validation and certificate chaining.\nExperienced in generating, managing, and storing key pairs using OpenSSL, and RSA, troubleshooting PKI-related issues, including key pair and certificate problems.\nStrong problem-solving skills and analytical thinking, attention to detail, and excellent communication and collaboration skills with technical and non-technical stakeholders.\nAbility to analyze user needs to determine technical requirements.\nAbility to write clean, maintainable, and well-documented code.\nShows initiative and offers ideas for new products and improvements to existing interfaces.\nActively keeps apprised of industry technological enhancements and changes.\n Location: Chantilly, VA (On Customer Site)\n Desired skills:\nSome experience integrating Python into web applications;\nSome experience Writing Confluence plugins\nFamiliar w/ Windows Active Directory Certificate Services (AD CS) - for issuing and managing key infrastructure (PKI) certificates\nUS Citizenship Required\nWHAT YOU’LL NEED TO SUCCEED:\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\n#WeAreGDIT\n#JET\n#GDITEnhanced2026\n#VA_2026Alumni\nThe likely salary range for this position is $158,855 - $214,921. 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:\nLess than 10%Telecommuting 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":6566,"description_truncated":false,"requirements":{"experience_years_min":10,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":true,"languages":[]},"benefits":["401k plan","Growth opportunities"],"hiring_locations":[{"name":"United States","iso":"US","kind":"country"}],"hiring_excludes":[],"relocation_offered":false,"industries":[],"lifecycle":[{"event":"open","at":"2026-08-26T00:00:00Z"},{"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":15}],"liveness":{"score":13,"band":"cold","label":"Long shot","p_open":1,"p_active":0.453,"p_room":0.28,"age_days":52,"expected_fill_days":10,"reasons":["conf:0","velocity","win:tail","crowd:brand"],"computed_at":"2026-10-17T05:46:00Z"},"pay":{"stated_usd_annual":214921,"is_top_pay":false},"html_url":"https://alion.io/job/general-dynamics-information-technology-core-java-software-engineer-tssci-with-polygraph","json_url":"https://alion.io/job/general-dynamics-information-technology-core-java-software-engineer-tssci-with-polygraph.json","meta":{"generated_at":"2026-10-17T19:47:44Z","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":3307,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-10-18T00:00:00Z"}},"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-core-java-software-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-core-java-software-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-core-java-software-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-core-java-software-engineer-tssci-with-polygraph\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fgeneral-dynamics-information-technology-core-java-software-engineer-tssci-with-polygraph"}]}