{"id":816437,"url":"https://alion.io/job/sixgen-full-stack-software-engineer-tssci-w-poly","title":"Full Stack Software Engineer (TS/SCI w/ Poly)","company":{"id":686212,"name":"SIXGEN","domain":"sixgen.io","url":"https://alion.io/company/sixgen","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"B","score":78,"open_postings":21,"ghost_share":0.286,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":84,"computed_at":"2026-11-02T06:13:15Z"}},"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":["Annapolis, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":90000,"max":185000,"currency":"USD","period":"year","gross":null,"usd_annual":185000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Agile","optional":false},{"name":"C++","optional":false},{"name":"CI/CD","optional":false},{"name":"Git","optional":false},{"name":"Java","optional":false},{"name":"Jira","optional":false},{"name":"Linux","optional":false},{"name":"Python","optional":false}],"status":"live","first_seen_at":"2025-05-23T14:38:05Z","employer_posted_date":"2026-05-07","last_verified_at":"2026-11-02T20:25:44Z","board_verified":true,"closed_at":null,"days_open":528,"trust":{"level":"ghost","repost_count":0,"flags":["stale","company_stale"],"days_open":527},"description":"SIXGEN’s mission is to deliver agile, mission-ready cybersecurity solutions that empower government and critical infrastructure organizations to stay ahead of advanced cyber threats. We combine innovation, deep expertise, and cutting-edge capabilities to uncover vulnerabilities, protect vital systems, and ensure operational superiority in an ever-evolving digital landscape.\nPosition: Software Engineer\nJob Type: Full Time\nLocation: Onsite, Ft-Meade, MD\nClearance Requirements: TS/SCI w/ Poly\nTravel: None\nABOUT THE TEAM\nSIXGEN supports missions by serving government and commercial organizations as they overcome global cybersecurity challenges. In this position, you’ll provide meaningful support to our customer’s missions and operations. You’ll work alongside a team of highly skilled operators who are dedicated to using innovative processes, tools, and techniques to get things done. \nWHAT YOU’LL DO\nDesign, develop, test, and deploy software applications and systems in support of government and customer missions.Collaborate with systems engineers, analysts, and end users to understand technical requirements and translate them into software solutions.\n\nWrite clean, efficient, and maintainable code using modern programming languages and development practices.\nSupport integration, debugging, and testing activities in both lab and operational environments.\nEnsure software meets security, performance, and reliability standards, in compliance with government policies and frameworks.\nREQUIRED QUALIFICATIONS\nUS Citizen with the ability to obtain a US Government Security clearance up to the Secret or TS level \nProficiency in one or more programming languages such as Python, C++, Java, or C.\nExperience developing software in Linux-based environments.Familiarity with secure coding practices and software lifecycle principles.\n\nStrong problem-solving skills and the ability to work independently or as part of a collaborative team.\nExperience supporting DoD, IC, or federal government software development projects.\nKnowledge of DevSecOps, containerization, or distributed systems.Familiarity with Agile methodologies and tools like Git, Jira, and CI/CD pipelines.\n\nCOMPENSATION & BENEFITS\n$90,000 - $185,000 USD\nThe salary range for this role is an estimate based on a wide range of compensation factors, inclusive of base salary only. Actual salary offer may vary based on (but not limited to) work experience, education and/or training, critical skills, and/or business considerations. The final salary offer will be determined after a thorough review of the candidate's background and alignment with the role. Additionally, SIXGEN offers top-tier benefits for full-time employees, including:\nEmployer-paid health insurance premiums (medical, dental, vision) for you and your family \nEmployer-paid short/long term disability insurance and basic life/AD&D insurance\n401K with a 4% employer contribution\nProfessional development reimbursement options available (training, certification, education, etc)\nFlexible and remote work policies for most positions\nFlexible PTO and holiday schedule\nOUR COMMITMENT\nSIXGEN is an Equal Opportunity Employer. We ensure that all applicants are considered for employment without regard to race, color, religion, sexual orientation, gender identity, national origin, disability, age, marital status, ancestry, projected veteran status, or any other protected group or class.\nWe are committed to fostering an inclusive culture that values diversity in our people, reflecting the communities we serve and our customer base. 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