{"schemaVersion":"jobsearcher.job.v1","id":"5eca6f6b7496abf819d0cbdf","url":"https://jobsearcher.com/jobs/5eca6f6b7496abf819d0cbdf","canonicalUrl":"https://jobsearcher.com/jobs/5eca6f6b7496abf819d0cbdf","title":"Senior Software Developer (TS/SCI) - Python, ETL & Data","description":"Cornerstone Defense in Herndon, VA is seeking a Software Developer to translate requirements into concrete software solutions. You will design components, mentor teammates, and participate in end-to-end SDLC, including CI/CD integration, in an on-site role requiring Active TS/SCI w/ Polygraph.\r\nIdeal candidates will have 3+ years of Python experience, strong ETL and SQL skills, and demonstrated SDLC expertise to debug, test, and deploy across environments.#J-18808-Ljbffr","company":"Cornerstone Defense","rawCompany":"cornerstone defense","city":"Herndon","state":"VA","isRemote":false,"isActive":false,"createdAt":"2026-11-04T03:16:27.745Z","occupations":[{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1251.00","title":"Computer Programmers","slug":"computer-programmers"},{"code":"15-1243.01","title":"Data Warehousing Specialists","slug":"data-warehousing-specialists"}],"industries":[{"code":"541512","title":"Computer Systems Design Services","slug":"computer-systems-design-services"},{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"},{"code":"513210","title":"Software Publishers","slug":"software-publishers"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Senior Software Developer (TS/SCI) - Python, ETL & Data","description":"Cornerstone Defense in Herndon, VA is seeking a Software Developer to translate requirements into concrete software solutions. You will design components, mentor teammates, and participate in end-to-end SDLC, including CI/CD integration, in an on-site role requiring Active TS/SCI w/ Polygraph.\r\nIdeal candidates will have 3+ years of Python experience, strong ETL and SQL skills, and demonstrated SDLC expertise to debug, test, and deploy across environments.#J-18808-Ljbffr","datePosted":"2026-11-04T03:16:27.745Z","dateModified":"2026-11-04T03:16:27.745Z","hiringOrganization":{"@type":"Organization","name":"Cornerstone Defense","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Herndon","addressRegion":"VA","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"5eca6f6b7496abf819d0cbdf"},"url":"https://jobsearcher.com/jobs/5eca6f6b7496abf819d0cbdf"}}