{"id":3228970,"url":"https://alion.io/job/gci-software-engineer-sme-tssci-with-poly-required-2","title":"Software Engineer SME (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":"2026-11-04T06:34:25Z"}},"role":"Backend","role_family":"Backend","seniority":null,"employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Dulles, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":187179,"max":318198,"currency":"USD","period":"year","gross":null,"usd_annual":318198},"salary_estimate":null,"experience_years_min":null,"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":"JavaScript","optional":false},{"name":"JQuery","optional":false},{"name":"LDAP","optional":false},{"name":"Linux","optional":false},{"name":"MariaDB","optional":false},{"name":"MySQL","optional":false},{"name":"OpenSSL","optional":false},{"name":"PKI","optional":false},{"name":"Rest API","optional":false},{"name":"Spring Boot","optional":false},{"name":"Active Directory","optional":true},{"name":"Confluence","optional":true},{"name":"Java","optional":true},{"name":"Python","optional":true},{"name":"Windows","optional":true}],"status":"live","first_seen_at":"2026-09-25T15:18:24Z","employer_posted_date":"2026-09-25","last_verified_at":"2026-11-04T14:32:31Z","board_verified":true,"closed_at":null,"days_open":39,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":39},"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 Software Engineer, a typical day will include the following duties:\nRequired skills:\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.\nDesired 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.\nA candidate must be a US Citizen and requires an active/current TS/SCI with Polygraph clearance.\nEqual Opportunity Employer / Individuals with Disabilities / Protected Veterans","description_format":"text","description_chars":3598,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"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":39,"band":"fade","label":"Fading","p_open":1,"p_active":0.707,"p_room":0.55,"age_days":39,"expected_fill_days":34,"reasons":["conf:1","velocity","win:tail"],"computed_at":"2026-11-04T06:34:25Z"},"pay":{"stated_usd_annual":318198,"is_top_pay":true},"html_url":"https://alion.io/job/gci-software-engineer-sme-tssci-with-poly-required-2","json_url":"https://alion.io/job/gci-software-engineer-sme-tssci-with-poly-required-2.json","meta":{"generated_at":"2026-11-04T14:34:17Z","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":22087,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-05T00:00:00Z"}},"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-software-engineer-sme-tssci-with-poly-required-2"},{"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-software-engineer-sme-tssci-with-poly-required-2"},{"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-software-engineer-sme-tssci-with-poly-required-2"},{"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-software-engineer-sme-tssci-with-poly-required-2\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fgci-software-engineer-sme-tssci-with-poly-required-2"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":3228970}},{"tool":"search_jobs","arguments":{"company":"gci.tech","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":3228970},"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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