{"id":140427,"url":"https://alion.io/job/synergy-ecp-senior-software-engineer","title":"Senior Software Engineer","company":{"id":5649,"name":"Synergy ECP","domain":"synergyecp.com","url":"https://alion.io/company/synergy-ecp","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":51,"open_postings":45,"ghost_share":0.822,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-10-17T05:46:00Z"}},"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":["Annapolis Junction, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":150000,"max":270000,"currency":"USD","period":"year","gross":null,"usd_annual":270000},"salary_estimate":null,"experience_years_min":7,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Java","optional":false},{"name":"Python","optional":false},{"name":"AWS","optional":true},{"name":"Azure","optional":true},{"name":"Kubernetes","optional":true}],"status":"live","first_seen_at":"2026-06-24T13:42:46Z","employer_posted_date":"2026-06-24","last_verified_at":"2026-10-17T15:09:55Z","board_verified":true,"closed_at":null,"days_open":115,"trust":{"level":"ghost","repost_count":0,"flags":["stale","company_stale"],"days_open":114},"description":"Overview\nWe are seeking Senior Software Engineers to lead the design and development of complex, scalable software systems. This role involves technical leadership, system architecture, and mentoring junior engineers.\nWhat You’ll Do\nLead design and development of software solutions and system architecture\nCollaborate with stakeholders to define technical requirements and strategies\nGuide and mentor junior engineers through code reviews and technical direction\nOptimize systems for performance, scalability, and security\nDrive best practices in development, testing, and deployment\nTroubleshoot complex system-level issues\nCore Skills\nBachelor’s degree in Computer Science or related discipline\n7+ years of software development experience\nStrong proficiency in one or more languages (Java, Python, C++, etc.)\nExperience with system design and distributed systems\nDeep understanding of software architecture and best practices\nNice to Have\nCloud architecture experience (AWS, Azure)\nContainer orchestration (Kubernetes)\nExperience leading projects or teams\nCLEARANCE REQUIRED:\nTS/SCI w/ Polygraph\nOther Requirements:\nU.S. Citizenship\nCompensation Spotlight:\nFor this role, our typical salary range starts at $150,000 and stretches up to $270,000. But here's the deal - we're not about capping your potential. We're committed to snapping up the best and brightest, and we're ready to put our money where our mouth is. So, if you're one of the rare exceptions to the status quo with the education, experience, and that extra something special, we're not afraid to go above and beyond to secure your talent. Because for us, it's not just about a salary. 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