{"id":1158812,"url":"https://alion.io/job/lynx-sr-software-engineer-2","title":"Sr. Software Engineer","company":{"id":678562,"name":"Lynx","domain":"lynx.com","url":"https://alion.io/company/lynx-6","size_band":"201-500","is_staffing_agency":false,"is_intermediary":false,"listed_via":null,"ats_vendor":"Rippling","truth_index":null},"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":["Huntsville, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":120000,"max":164800,"currency":"USD","period":"year","gross":null,"usd_annual":164800},"salary_estimate":null,"experience_years_min":5,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Bitbucket","optional":false},{"name":"C++","optional":false},{"name":"Confluence","optional":false},{"name":"Python","optional":false},{"name":"Windows","optional":false}],"status":"live","first_seen_at":"2026-09-23T17:40:35Z","employer_posted_date":"2026-09-23","last_verified_at":"2026-09-25T01:40:02Z","board_verified":true,"closed_at":null,"days_open":1,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":1},"description":"Job Title: Sr. Software Engineer\nLocation: Huntsville, AL\nSalary Range: $120,000 to $164,800 + Bonus Eligible\nSecurity Clearance: Active Secret Clearance Required\nThis position requires full time onsite in Huntsville, Alabama.\nCompany Overview\nFounded in 2004 with locations in Atlanta, GA and Fort Worth, TX, Thompson Software Solutions (TSS) is a mission-driven Aerospace and Defense software and systems engineering company supporting the U.S. military, defense primes, and commercial space partners. We specialize in the development, integration, test, and deployment of safety & mission-critical software systems that power next-generation aircraft, defense platforms, and space technologies. Our team understands what it takes to modernize complex embedded systems while maintaining the rigor, compliance, and reliability required for mission- and safety-critical environments.\nAs a defense-focused company of highly skilled and dedicated engineers, we take pride in solving complex technical challenges that directly impact national security and operational readiness. We partner closely with customers across the military aviation and space domains to deliver resilient, future-ready solutions with portability, sustainability, and long-term mission success in mind.\nDescription\nThompson Software Solutions is seeking a Senior Software Engineer to support the development of embedded flight software and Guidance, Navigation, and Control (GNC) capabilities for an advanced missile platform. This role offers the opportunity to design and integrate mission-critical software operating in high-performance, real-time environments where precision, reliability, and deterministic execution are paramount.\nAs a Senior Software Engineer, you will develop embedded flight software, contribute to the architecture, design, implementation, integration, and verification of real-time systems supporting missile guidance, navigation, and control functions. You will work at the intersection of software, hardware, and control algorithms to ensure accurate sensor processing, state estimation, trajectory management, and actuator command execution under strict timing and performance constraints.\nThis position requires deep expertise in embedded and real-time software development, including low-level hardware interfaces, multi-threaded and deterministic system design, integration with GNC algorithms, and operation within safety- and mission-critical frameworks. Experience supporting hardware-in-the-loop (HIL) environments, simulation integration, system-level test, and flight qualification activities is highly valued.\nYou will collaborate closely with software engineers, GNC engineers, systems engineers, integration and test teams, and program leadership to mature capabilities from lab development through system qualification and flight test.\nThe successful candidate will join a high-performing software engineering team focused on delivering next-generation missile capabilities. This role requires strong systems thinking, exceptional analytical and troubleshooting skills, and the ability to lead in a fast-paced, high-consequence development environment where performance and reliability are mission critical.\nSelected applicants will be subject to a government security investigation and must meet eligibility requirements for access to classified information. Continued eligibility for access to classified information is required throughout employment, as dictated by program needs.\nBasic Requirements\nBachelor's degree in STEM discipline\n5+ years of embedded software development\nExperience developing embedded software in C/C++\nExperience with I&T integration and test.\nExperience with Full Lifecycle Software Development\nExperience with (FSW) Flight software engineering\nProficient with Linux and Windows development environments\nAbility to professionally communicate project status and collaborate on technical solutions with clients and peers\nActive Secret Clearance Required\nAbility to work onsite 100%\nPerform additional job duties as assigned.\n\nPreferred / Additional Skills\nProficient with Atlassian Tools (Confluence, JIRA, Bitbucket, etc.)\nProficient in Python development\nFamiliarity with Model-Based System Engineering (MBSE) concepts and tools (Cameo, AADL)\nExperience with Digital Simulation Development and integration\nExperience with safety-critical software development and practices (DO-178C)\nExperience with Navigation, Guidance and Control Implementation\nExperience with Signal Processing Implementation\nExperience developing Embedded Flight Software\nExperience communicating and documenting complex technical designs\nAbility to work in a collaborative and team-based environment\nExcellent written and verbal communication and presentation skills\nSound Exciting? Get in touch today! We have very robust benefits including:\nLow-cost Medical / Dental / Vision coverage options \n401K with generous employer match \nResponsible Paid Time Off + Paid Holidays \nRemote work opportunities based on role \nEmployee Assistance Program (EAP) \nCareer growth and professional development opportunities \nAll qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, disability, or veteran status.","description_format":"text","description_chars":5323,"description_truncated":false,"requirements":{"experience_years_min":5,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":{"level":"bachelor","optional":false},"security_clearance":true,"languages":[]},"benefits":["401k plan","Professional development"],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Software","Operating Systems"],"lifecycle":[{"event":"open","at":"2026-09-23T22:46:31Z"}],"liveness":{"score":90,"band":"hot","label":"Hiring now","p_open":1,"p_active":0.903,"p_room":1,"age_days":0,"expected_fill_days":37,"reasons":["conf:0","velocity","win:early"],"computed_at":"2026-09-24T05:45:00Z"},"pay":{"stated_usd_annual":164800,"is_top_pay":false},"html_url":"https://alion.io/job/lynx-sr-software-engineer-2","json_url":"https://alion.io/job/lynx-sr-software-engineer-2.json","meta":{"generated_at":"2026-09-25T03:47:30Z","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":4135,"day_limit":5000,"remaining_today":865,"minute_limit":60,"resets_at":"2026-09-26T00:00:00Z"}}}