{"id":1262286,"url":"https://alion.io/job/singularity-senior-mission-systems-software-engineer-c2","title":"Senior Mission Systems Software Engineer (C2)","company":{"id":3778918,"name":"Singularity Defense","domain":"singularityus.com","url":"https://alion.io/company/singularity-4","size_band":"11-50","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Rippling","truth_index":{"grade":"C","score":59,"open_postings":37,"ghost_share":0.676,"stale_share":0,"repost_share":0,"time_to_fill_p50_days":null,"computed_at":"2026-09-27T05:45:00Z"}},"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":["Huntsville, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":120000,"max_usd":222000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":1999},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Linux","optional":false},{"name":"Defense in Depth","optional":true},{"name":"DNS","optional":true},{"name":"gRPC","optional":true},{"name":"NixOS","optional":true},{"name":"Path Planning","optional":true},{"name":"Protobuf","optional":true},{"name":"Rest API","optional":true},{"name":"ROS","optional":true},{"name":"ROS2","optional":true},{"name":"Threat Modeling","optional":true}],"status":"live","first_seen_at":"2026-07-01T13:21:18Z","employer_posted_date":"2026-07-01","last_verified_at":"2026-09-27T23:51:41Z","board_verified":true,"closed_at":null,"days_open":88,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":87},"description":"About The Company\nWe are a stealth-mode Aerospace & Defense startup headquartered in Gardena, CA. Our founding team hails from SpaceX, Anduril, and Lockheed Martin, and we are backed by Joint Staff-level military leadership and several Silicon Valley firms. With a world-class business development & leadership team already in place, we are well positioned to capitalize on already overwhelming demand.\n Role Summary:\nThe Senior Mission Systems Engineer is responsible for designing, developing, testing, and maintaining high-performance mission-critical software that supports fire control, flight, ground, and command-and-control systems. This role focuses on building robust, secure, and reliable modern C++ applications for Linux-based embedded and edge computing platforms while integrating with sensors, hardware, and distributed networked systems.\nThe ideal candidate possesses deep expertise in modern C++, Linux, networking, and systems engineering, with the ability to troubleshoot complex issues spanning software, hardware, networking, and deployment environments. Success in this role requires close collaboration with cross-functional engineering teams-including mechanical, electrical, guidance, navigation and control (GNC), and operations-to deliver reliable mission capabilities from development through field integration.\nCandidates should have strong computer science fundamentals, experience with embedded and distributed systems, and a security-first approach to software design and implementation. Experience with robotics, command-and-control systems, fire control, flight software, cybersecurity, applied mathematics, and modern software architectures is highly desirable. The role also includes occasional travel (up to 20%) to support customer demonstrations, system integration, and field testing\nResponsibilities:\nDesign, implement, test, and maintain high-quality modern C++ software for mission systems.\nContribute to fire control, ground systems, and flight software efforts.\nRefactor and improve existing software architecture, reliability, maintainability, and testability.\nWork with linux-based systems deployed on embedded and edge compute platforms.\nInterface with hardware-adjacent systems, sensors, and embedded compute.\nBuild software that communicate over real-world networks, including unreliable or constrained data links.\nDebug complex system-level issues across software, hardware, networking, and deployment environments.\nCollaborate with mechanical, electrical, software, GNC, and operations teams towards a common goal.\nSupport occasional field testing, integration events, and customer demonstrations.\nApply a security-oriented mindset to system design, implementation, deployment, and debugging.\nTravel up to 20% of the time for on-site integration events with external vendors or customers.\nRequired Qualifications:\nStrong Modern C++ (23) experience or demonstrable ability to write high-quality C++\nStrong CS fundamentals: data structures, algorithms, concurrency, memory management, networking, and debugging\nLinux experience: Linux development, debugging, deployment, operation, maintenance\nNetworking experience: TCP/UDP, routing, multicast, DNS, DDS, pub/sub, Ethernet, etc\nUnderstanding of hardware-adjacent software: communication protocols, sensors, etc\nAbility to obtain and maintain a U.S. security clearance\nWillingness to travel for up to 20% of the job\nPreferred Qualifications:\nC++23/C++23 experience\nRobotics experience (ROS/ROS2, control algorithms, path planning, etc)\nC2 (Command and Control) software experience\nFire control systems (FCS) software experience\nFlight software (FSW) software experience\nNix/NixOS experience\nCybersecurity mindset: defense in depth, secure-by-default design, threat modeling, CTF/security background, crypto familiarity, hardening experience\nApplied math background: linear algebra, optimization, estimation, controls, simulation, numerical methods, etc\nBasic API/web literacy: REST, gRPC, protobuf, frontend/backend concepts, databases, etc\nITAR\nTo conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. 1157, or (iv) Asylee under 8 U.S.C 1158, or be eligible to obtain the required authorizations from the U.S. Department of State.","description_format":"text","description_chars":4366,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Military","Air Defense","Defense Manufacturing"],"lifecycle":[{"event":"open","at":"2026-09-25T20:51:43Z"}],"liveness":{"score":7,"band":"cold","label":"Long shot","p_open":1,"p_active":0.233,"p_room":0.28,"age_days":87,"expected_fill_days":31,"reasons":["conf:9","stale_co","win:tail","crowd:"],"computed_at":"2026-09-27T05:45:00Z"},"pay":null,"html_url":"https://alion.io/job/singularity-senior-mission-systems-software-engineer-c2","json_url":"https://alion.io/job/singularity-senior-mission-systems-software-engineer-c2.json","meta":{"generated_at":"2026-09-28T04:46:16Z","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":3092,"day_limit":5000,"remaining_today":1908,"minute_limit":60,"resets_at":"2026-09-29T00:00:00Z"}}}