{"id":646565,"url":"https://alion.io/job/arsiem-397-principal-software-engineer","title":"397 - Principal Software Engineer","company":{"id":668767,"name":"ARSIEM","domain":"arsiem.com","url":"https://alion.io/company/arsiem","size_band":"51-200","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Lever","truth_index":{"grade":"D","score":50,"open_postings":43,"ghost_share":0.837,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-09-30T05:45:00Z"}},"role":"Backend","role_family":"Backend","seniority":"lead","employment_type":"full_time","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":[],"countries":[],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":216000,"max":241000,"currency":"USD","period":"year","gross":null,"usd_annual":241000},"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Python","optional":false}],"status":"live","first_seen_at":"2026-06-30T22:37:23Z","employer_posted_date":"2026-06-30","last_verified_at":"2026-09-30T04:43:25Z","board_verified":true,"closed_at":null,"days_open":92,"trust":{"level":"ghost","repost_count":0,"flags":["stale","company_stale"],"days_open":91},"description":"ARSIEM is looking for a motivated Principal Software Engineer to support the exciting Advanced Analytics Team mission. Engineer will work closely with mission stakeholders to analyze software requirements, design innovative technical solutions, develop software applications, and implement high-performance capabilities supporting advanced mission objectives.\nThis position will support one of our government clients in Fort Meade, MD.\nResponsibilities\nDesign, develop, test, debug, and maintain software applications supporting mission requirements. \nAnalyze customer needs, develop software prototypes, engineer technical solutions, implement algorithms, and translate conceptual designs into scalable software architectures.\nDevelop and debug software using object-oriented programming languages; perform software engineering and technical design activities; analyze and understand legacy code; develop efficient algorithms utilizing data structures, dynamic programming, heuristics, and modeling techniques; conduct software testing and troubleshooting; work at the operating system level, including file I/O, system interfaces, and low-level programming concepts; and develop advanced tools for binary analysis, shellcode detection, malware analysis, function identification, and reverse engineering of compiled software.\nMinimum Qualifications\nBachelor's degree plus 11-years of relevant experience or equivalent. \nProficiency with Python, and ability to read/understand C/C++, and Assembly (x86). \nExperience with software architecture, operating system design, compilers, and debugging.\nComfortable working with operating system internals, low-level software development, file I/O, system APIs, memory management, and executable program analysis.\nPreferred Qualifications\nFamiliarity with malware analysis, reverse engineering, and protocol analysis.","description_format":"text","description_chars":1858,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["National Security","Information Security","IT Consulting & Digital Transformation","Custom Software Development"],"lifecycle":[{"event":"open","at":"2026-09-10T20:17:15Z"}],"liveness":{"score":6,"band":"cold","label":"Long shot","p_open":1,"p_active":0.211,"p_room":0.28,"age_days":91,"expected_fill_days":31,"reasons":["conf:1","stale_co","ghost","win:tail","crowd:"],"computed_at":"2026-09-30T05:45:00Z"},"pay":{"stated_usd_annual":241000,"is_top_pay":true},"html_url":"https://alion.io/job/arsiem-397-principal-software-engineer","json_url":"https://alion.io/job/arsiem-397-principal-software-engineer.json","meta":{"generated_at":"2026-10-01T01:44:31Z","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":1243,"day_limit":5000,"remaining_today":3757,"minute_limit":60,"resets_at":"2026-10-02T00:00:00Z"}}}