{"id":132575,"url":"https://alion.io/job/true-anomaly-software-engineer-i-spacecraft-simulation-new-grad","title":"Software Engineer I, Spacecraft Simulation (New Grad)","company":{"id":3381,"name":"True Anomaly","domain":"trueanomaly.space","url":"https://alion.io/company/true-anomaly","size_band":"1001-5000","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Greenhouse","truth_index":{"grade":"A","score":92,"open_postings":168,"ghost_share":0.054,"stale_share":0,"repost_share":0.006,"time_to_fill_p50_days":101,"computed_at":"2026-10-17T05:46:00Z"}},"role":"Hardware","role_family":"Hardware","seniority":"junior","employment_type":null,"work_mode":"hybrid","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Denver, United States","Long Beach, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":{"min_usd":85000,"max_usd":165000,"period":"year","method":"role_seniority_country_remote_cell","sample_n":468},"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Python","optional":false},{"name":"CI/CD","optional":true},{"name":"Git","optional":true}],"status":"live","first_seen_at":"2026-08-25T18:33:07Z","employer_posted_date":"2026-08-25","last_verified_at":"2026-10-18T15:21:28Z","board_verified":true,"closed_at":null,"days_open":53,"trust":{"level":"ok","repost_count":0,"flags":["company_stale"],"days_open":53},"description":"Space is a warfighting domain. True Anomaly seeks those with the talent and ambition to build the technology that secures it.\nOUR MISSION\nTrue Anomaly delivers decisive capabilities for space superiority. We build autonomous spacecraft, advanced payloads, mission software, and space-based interceptors - enabling the U.S. and its Allies to secure the space environment and counter threats from the ultimate high ground.\nOUR VALUES\nBe the offset. We create asymmetric advantages with creativity and ingenuity.\nWhat would it take? We challenge assumptions to deliver ambitious results.\n It’s the people. Our team is our competitive advantage and we are better together.\nYOUR MISSION\nSoftware is the central nervous system for True Anomaly's engineering and product thesis. Software bridges the gap between military objectives, theoretical physics, and the human and autonomous control of spacecraft and ground systems. True Anomaly is seeking an entry-level Spacecraft Simulation Software Engineer to help build and extend our spacecraft, constellation modeling, and simulation software with a focus on multi-physics, high-fidelity simulation. \nThis is a great opportunity for a recent graduate or early-career engineer to grow within a fast-paced, interdisciplinary team. You will learn from experienced engineers as you help develop algorithms for modeling complex coupled physics including 6-degree-of-freedom (6DOF) rigid body dynamics, thermal systems, attitude dynamics and control, power systems, propulsion, and their interactions. You'll contribute to the simulation infrastructure that enables engineers to design spacecraft, validate control algorithms, analyze system performance, and predict mission outcomes with high confidence. \nThis is a 3 month temporary employment engagement. There is potential to convert to regular employment based on performance and business need.\nRESPONSIBILITIES\nWrite well-structured, efficient code using modern C++ (C++ 17 / C++ 20), with attention to performance and maintainability, guided by code reviews and team standards \nContribute to multi-physics simulation libraries for spacecraft systems modeling, including: \n6DOF rigid body dynamics with environmental perturbations (gravity gradient, solar radiation pressure, atmospheric drag, magnetic torques) \nThermal modeling including conduction, radiation, and solar heating \nAttitude dynamics and control system simulation \nPropulsion system modeling (thrusters, tanks, mass properties) \nPower generation and distribution (solar arrays, batteries, loads) \nSensor and actuator models (reaction wheels, star trackers, gyros, magnetometers, thrusters) \nHelp implement coupled physics algorithms that capture interactions between subsystems (thermal-structural, power-thermal, propulsion-dynamics, etc.), with guidance from senior engineers \nAssist in developing and testing time-stepping algorithms, solvers, and integration schemes for real-time and faster-than-real-time simulation \nHelp maintain libraries that provide APIs in multiple languages (Python, C++) to other applications within True Anomaly \nCollaborate with other internal teams who leverage our simulation APIs to plan and execute missions, develop algorithms for spacecraft operation, and perform trade-space analyses \nParticipate in code reviews, architectural discussions, and sprint planning sessions, learning and applying our software quality standards and delivery practices \nQUALIFICATIONS\nBachelor's degree in aerospace engineering, mechanical engineering, computer science, physics, a similar discipline, or equivalent practical experience \nExposure to C++ (or a similar compiled language) through coursework, internships, personal projects, or research; familiarity with Python is a plus \nFoundational understanding of object-oriented software development practices, software testing practices, data structures and algorithms, and software design patterns \nEagerness to learn quickly, ask questions, and take on new challenges with support from the team \nExcellent problem-solving skills and attention to detail \nU.S. Citizen and eligible for DoD Secret or TS/SCI clearance \nPREFERRED SKILLS AND EXPERIENCE\nInternship, co-op, research, or project experience with physics-based modeling and simulation (i.e., modeling spacecraft dynamics, thermal systems, or control algorithms) \nCoursework or project exposure to numerical methods \nFamiliarity with spacecraft subsystems: \nAttitude determination and control systems (ADCS) \nGuidance, navigation, and control (GNC) \nThermal control systems \nElectric power systems (EPS) \nPropulsion systems \nUnderstanding of coordinate frames and transformations (ECI, ECEF, body frame, etc.) \nExposure to quaternion mathematics and rotation representations \nIntroductory knowledge of orbital mechanics and perturbation forces \nAwareness of model validation, verification, and uncertainty quantification concepts \nExperience with version control systems (Git); exposure to CI/CD pipelines a plus \nCOMPENSATION\nBase Salary: Denver: $75,000; Long Beach: $80,000\nADDITIONAL REQUIREMENTS\nWork Location -Successful candidates will be located near Denver or Colorado Springs. While we observe a hybrid work environment, some work must be done on site.\nWork environment -the work environment; temperature, noise level, inside or outside, or other factors that will affect the person's working conditions while performing the job.\n Physical demands -the physical demands of the job, including bending, sitting, lifting and driving.\nThis position will be open until it is successfully filled. To submityour application, please follow the directions below.#LI-Onsite\nTo conform to U.S. Government space technology export regulations, including the International Traffic in Arms Regulations (ITAR) you must be a U.S. citizen, lawful permanent resident of the U.S., protected individual as defined by 8 U.S.C. 1324b(a)(3), or eligible to obtain the required authorizations from the U.S. Department of State.\nTrue Anomaly is committed to equal employment opportunity on any basis protected by applicable state and federal laws. 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