{"schemaVersion":"jobsearcher.job.v1","id":"2be5715dfbeff7ded83f551b","url":"https://jobsearcher.com/jobs/2be5715dfbeff7ded83f551b","canonicalUrl":"https://jobsearcher.com/jobs/2be5715dfbeff7ded83f551b","title":"Guidance Navigation & Controls Engineer (Mid-Level)","description":"Job Description:\n\nCimarron is seeking a mid-level Guidance Navigation & Controls Engineer to rapidly prototype, develop, and field novel space and hypersonic capabilities. ESG delivers first-of-kind solutions for customers in a fast-paced, multidisciplinary environment. You will design GN&C algorithms, build high‑fidelity simulations, implement and test flight software, and support integration and flight test in both atmospheric and space.\n\nKey Duties:\n\nDesign, implement, and verify guidance, navigation, and control algorithms for spacecraft, re-entry vehicles, and hypersonic/airborne platforms.\nDevelop and maintain 6‑DOF dynamics simulations and associated analysis tools for mission and performance assessment.\nImplement and validate GN&C flight software (MATLAB/Simulink models and C/C++ prototypes) and integrate with testbeds and avionics.\nApply astrodynamics and flight mechanics to mission design, novel orbit concepts, and trajectory optimization.\nApply aerodynamics, atmospheric flight mechanics, and controls knowledge to support the design of re-entry guidance, navigation, and flight control functions\nDevelop powered and unpowered guidance laws and autonomy tools for on‑orbit and atmospheric operations.\nSupport troubleshooting of operational anomalies, functional tests, and service incidents.\nProduce concepts of operations, simulation artifacts, and test procedures to enable rapid iteration from prototype to flight test.\nCollaborate with cross‑functional teams (systems engineering, avionics, test, and business development) and communicate technical tradeoffs to stakeholders.\nIndependently identify inefficiencies, propose solutions, and implement reusable tools and automations.\n\nRequired Skills, Experience, and Education:\n\nDue to facility security requirements, only U.S. citizens are eligible for consideration at this time.\nAbility to complete a pre-employment background check and drug screening, which will include, but is not limited to, testing for marijuana use.\nThis position requires access to federal facilities. Candidates must possess a valid, unexpired Real ID-compliant driver's license or state-issued identification card at the time of hire. If you are unsure whether your ID is Real ID-compliant, please check for the star symbol in the upper portion of your driver's license or state ID.\nMust have an active TS/SCI security clearance.\n5 or more years of related work experience.\nEngineering experience with aircraft, missile, spacecraft, autonomous platform or similar vehicles.\nProficiency with MATLAB and Simulink.\nProficiency developing GN&C algorithms, models and simulations.\nBachelor of Science degree in Engineering, Engineering Technology (including Manufacturing Technology), Computer Science, Data Science, Mathematics, Physics, Chemistry or non-US equivalent qualifications directly related to the work statement.\n\nDesired Skills, Experience, and Education:\n\nAbility to work effectively in broad, minimally defined design spaces and to communicate technical results clearly.\n5 or more years related technical experience or an equivalent combination of education and experience.\nActive Tier 5 (T5) Clearance, formerly known as Single Scope Background Investigation (SSBI) is Preferred.\nExperience with spacecraft operations, space environment effects, or hypersonic re entry GN&C.\nProgramming experience in C/C++ or comparable languages sufficient to implement and test GN&C algorithms.\nFamiliarity with state estimation and sensor fusion (e.g., Kalman filters), GPS/INS, or air data systems.\nBackground in classical and modern control theory and nonlinear control design.\nModel based development experience and flight test support.\n\nBusiness Profile:\n\nCimarron is a global solutions company with a strategic partnering approach to satisfying customer-driven requirements. We ensure customer success with a modern approach and experienced leadership. Driven by an entrepreneurial spirit, Cimarron is fueled by highly skilled employees, developing new innovative technologies, and delivering superior products and services. We believe in recognizing employees' worth by offering competitive salaries and benefits, including health, dental, and vision insurance, 401(k) contributions, educational reimbursement, and much more. From company communication through Company-wide information meetings led by our President and CEO, to an Awards program designed to recognize our amazing employees and their accomplishments, you will not only feel like you are a part of a team, you will be a valued member of the Cimarron family. Cimarron is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, age, sex, sexual orientation, gender identity, religion, national origin, disability, veteran status, or any other characteristic protected by federal, state, or local law.\n\nPay: $120,000.00 - $200,000.00 per year\n\nBenefits:\n* 401(k)\n* 401(k) matching\n* Health insurance\n* Health savings account\n* Life insurance\n* Paid time off\n* Professional development assistance\n* Referral program\n* Relocation assistance\n* Tuition reimbursement\n* Vision insurance","company":"Cimarron Software Services","rawCompany":"cimarron software services","city":"El Segundo","state":"CA","isRemote":false,"isActive":false,"createdAt":"2026-09-10T11:20:02.940Z","occupations":[{"code":"17-2011.00","title":"Aerospace Engineers","slug":"aerospace-engineers"},{"code":"17-2199.05","title":"Mechatronics Engineers","slug":"mechatronics-engineers"},{"code":"17-2199.00","title":"Engineers, All Other","slug":"engineers-all-other"}],"industries":[{"code":"336414","title":"Guided Missile and Space Vehicle Manufacturing","slug":"guided-missile-and-space-vehicle-manufacturing"},{"code":"334511","title":"Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing","slug":"search-detection-navigation-guidance-aeronautical-and-nautical-system-and-instrument-manufacturing"},{"code":"927110","title":"Space Research and Technology","slug":"space-research-and-technology"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Guidance Navigation & Controls Engineer (Mid-Level)","description":"Job Description:\n\nCimarron is seeking a mid-level Guidance Navigation & Controls Engineer to rapidly prototype, develop, and field novel space and hypersonic capabilities. ESG delivers first-of-kind solutions for customers in a fast-paced, multidisciplinary environment. You will design GN&C algorithms, build high‑fidelity simulations, implement and test flight software, and support integration and flight test in both atmospheric and space.\n\nKey Duties:\n\nDesign, implement, and verify guidance, navigation, and control algorithms for spacecraft, re-entry vehicles, and hypersonic/airborne platforms.\nDevelop and maintain 6‑DOF dynamics simulations and associated analysis tools for mission and performance assessment.\nImplement and validate GN&C flight software (MATLAB/Simulink models and C/C++ prototypes) and integrate with testbeds and avionics.\nApply astrodynamics and flight mechanics to mission design, novel orbit concepts, and trajectory optimization.\nApply aerodynamics, atmospheric flight mechanics, and controls knowledge to support the design of re-entry guidance, navigation, and flight control functions\nDevelop powered and unpowered guidance laws and autonomy tools for on‑orbit and atmospheric operations.\nSupport troubleshooting of operational anomalies, functional tests, and service incidents.\nProduce concepts of operations, simulation artifacts, and test procedures to enable rapid iteration from prototype to flight test.\nCollaborate with cross‑functional teams (systems engineering, avionics, test, and business development) and communicate technical tradeoffs to stakeholders.\nIndependently identify inefficiencies, propose solutions, and implement reusable tools and automations.\n\nRequired Skills, Experience, and Education:\n\nDue to facility security requirements, only U.S. citizens are eligible for consideration at this time.\nAbility to complete a pre-employment background check and drug screening, which will include, but is not limited to, testing for marijuana use.\nThis position requires access to federal facilities. Candidates must possess a valid, unexpired Real ID-compliant driver's license or state-issued identification card at the time of hire. If you are unsure whether your ID is Real ID-compliant, please check for the star symbol in the upper portion of your driver's license or state ID.\nMust have an active TS/SCI security clearance.\n5 or more years of related work experience.\nEngineering experience with aircraft, missile, spacecraft, autonomous platform or similar vehicles.\nProficiency with MATLAB and Simulink.\nProficiency developing GN&C algorithms, models and simulations.\nBachelor of Science degree in Engineering, Engineering Technology (including Manufacturing Technology), Computer Science, Data Science, Mathematics, Physics, Chemistry or non-US equivalent qualifications directly related to the work statement.\n\nDesired Skills, Experience, and Education:\n\nAbility to work effectively in broad, minimally defined design spaces and to communicate technical results clearly.\n5 or more years related technical experience or an equivalent combination of education and experience.\nActive Tier 5 (T5) Clearance, formerly known as Single Scope Background Investigation (SSBI) is Preferred.\nExperience with spacecraft operations, space environment effects, or hypersonic re entry GN&C.\nProgramming experience in C/C++ or comparable languages sufficient to implement and test GN&C algorithms.\nFamiliarity with state estimation and sensor fusion (e.g., Kalman filters), GPS/INS, or air data systems.\nBackground in classical and modern control theory and nonlinear control design.\nModel based development experience and flight test support.\n\nBusiness Profile:\n\nCimarron is a global solutions company with a strategic partnering approach to satisfying customer-driven requirements. We ensure customer success with a modern approach and experienced leadership. Driven by an entrepreneurial spirit, Cimarron is fueled by highly skilled employees, developing new innovative technologies, and delivering superior products and services. We believe in recognizing employees' worth by offering competitive salaries and benefits, including health, dental, and vision insurance, 401(k) contributions, educational reimbursement, and much more. From company communication through Company-wide information meetings led by our President and CEO, to an Awards program designed to recognize our amazing employees and their accomplishments, you will not only feel like you are a part of a team, you will be a valued member of the Cimarron family. Cimarron is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, age, sex, sexual orientation, gender identity, religion, national origin, disability, veteran status, or any other characteristic protected by federal, state, or local law.\n\nPay: $120,000.00 - $200,000.00 per year\n\nBenefits:\n* 401(k)\n* 401(k) matching\n* Health insurance\n* Health savings account\n* Life insurance\n* Paid time off\n* Professional development assistance\n* Referral program\n* Relocation assistance\n* Tuition reimbursement\n* Vision insurance","datePosted":"2026-09-10T11:20:02.940Z","dateModified":"2026-09-10T11:20:02.940Z","hiringOrganization":{"@type":"Organization","name":"Cimarron Software Services","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"El Segundo","addressRegion":"CA","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"2be5715dfbeff7ded83f551b"},"url":"https://jobsearcher.com/jobs/2be5715dfbeff7ded83f551b"}}