{"id":1590257,"url":"https://alion.io/job/sosi-software-developer-senior-2","title":"Software Developer (Senior)","company":{"id":5998,"name":"SOSi","domain":"sosi.com","url":"https://alion.io/company/sosi","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"SmartRecruiters","truth_index":{"grade":"C","score":67,"open_postings":204,"ghost_share":0.549,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":22,"computed_at":"2026-10-01T05:45:00Z"}},"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":["Chantilly, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":117000,"max_usd":215000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":2304},"experience_years_min":7,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[],"status":"live","first_seen_at":"2026-09-30T13:43:15Z","employer_posted_date":"2026-09-30","last_verified_at":"2026-10-01T15:51:47Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"Founded in 1989 and headquartered in Reston, Virginia, SOSi is a private defense and government solutions business specializing in advanced technology systems and mission support. Its capabilities include data science, software development, network engineering, intelligence, surveillance, and reconnaissance (ISR), and logistics.\n **This position is contingent upon award of contract**\nSOSi is seeking a Software Developer to support our government customer in Chantilly, VA.\nEssential Job Duties\nLead design and development of complex software solutions writing clean, efficient code.\nMentor junior developers.\nConduct architectural reviews.\nIntegrate COTS, GOTS, and Open-Source components.\nDrive continuous improvement in development processes.\nActive in scope TS/SCI w/ Poly.\nMinimum 7+ years of relevant experience.\nunderstanding of the Sponsor's technical environment.\nExperience in full lifecycle software engineering.\nExperience moving capabilities from development through testing to production environments.\n Working Conditions\nOffice environment.\nWorking at SOSi\nAll interested individuals will receive consideration and will not be discriminated against for any reason.","description_format":"text","description_chars":1182,"description_truncated":false,"requirements":{"experience_years_min":7,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":true,"languages":[{"language":"English","level":"All levels","optional":false}]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["IT Infrastructure & Networking Services","Military Logistics","Translation Services","Intelligence"],"lifecycle":[{"event":"open","at":"2026-10-01T15:51:47Z"}],"liveness":{"score":86,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.86,"p_room":1,"age_days":1,"expected_fill_days":22,"reasons":["conf:10","win:early","comp:brand"],"computed_at":"2026-10-02T02:33:52Z"},"pay":null,"html_url":"https://alion.io/job/sosi-software-developer-senior-2","json_url":"https://alion.io/job/sosi-software-developer-senior-2.json","meta":{"generated_at":"2026-10-02T02:33:52Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","usage":{"tier":"crawler","counted_by":"address","units_charged":1,"used_today":3454,"day_limit":5000,"remaining_today":1546,"minute_limit":60,"resets_at":"2026-10-03T00:00:00Z"}}}