{"schemaVersion":"jobsearcher.job.v1","id":"a39ec58e09b3d936998d2e9d","url":"https://jobsearcher.com/jobs/a39ec58e09b3d936998d2e9d","canonicalUrl":"https://jobsearcher.com/jobs/a39ec58e09b3d936998d2e9d","title":"Software Engineer - Modeling & Simulation","description":"Job ID: 713417BR\nDate posted: Jan. 05, 2026\n\nDescription:The Lockheed Martin Space Mission Integration team seeks a highly skilled, motivated, and team-oriented software engineer to join our Strategic Operations Analysis team in Littleton, CO. This teams provides physics-based modeling, simulation, and analysis to identify and validate the viability of future space capabilities.\n\nAs a software engineer with Mission Integration, you will contribute to the team's efforts to design, develop, test, and deploy high fidelity multi-domain models to inform executive leadership, space strategy, and business development. This is a unique opportunity to contribute to innovative, forward-leaning programs while working alongside some of the brightest minds in the industry.\n\nResponsibilities include:\n\nPlanning and conducting software development activities\nDesigning, developing, documenting, testing, and debugging software for a system performing complex calculations including orbital projection and multi-domain effects\nApplying the appropriate standards, processes, procedures, and tools throughout the development life cycle. This will include working within an Agile workflow and supporting major program milestone events\nCorrecting program errors, preparing operating instructions, compiling documentation of program development, and analyzing system capabilities, output requirements, input data acquisition, programming techniques and controls\nEnsures software standards are met in conjunction with team leadership\nAssist with modeling, analysis, and visualization of analysis as needed\nBasic Qualifications:\n\nBachelor's or master's degree (or higher) in Computer Science, Computer Engineering, Aerospace Engineering, Physics, Mathematics, Electrical Engineering, or similar technical discipline.\n3+ years of related experience working on software development projects\nAbility to interact with peer-developers to facilitate interoperability with other modeling environments\nExperience working closely with mission analysts to generate lacking analysis capabilities\nUnderstanding of and comfort developing software in C++\nExperience using scripting languages such as Python or MATLAB\nExperience with AFSIM as well as the development and integration of AFSIM plug-ins\nExperience with other modeling environments\nGITLAB management experience to include creating / managing CI/CD pipelines\nExperience supporting modeling & simulation of campaign-level scenarios\nActive TS clearance with ability and willingness to obtain and maintain a TS//SCI clearance. Investigation within the last 5 years\nDesired Skills:\n\nExperience with writing software for computationally complex problems\nDemonstrated understanding of software design with a focus on high throughput calculations\nEnthusiastic, curious, and team focused\nExperience developing software interfaces including integration with third-party API's\nExpertise in both the Space & Aero mission areas with an ability to demonstrate operational and tactical insights to support multi-domain efforts\nActive presence across the AFSIM development community\nExperience conducting joint-domain analysis and product delivery.\nActive TS/SCI clearance\nSecurity Clearance Statement: This position requires a government security clearance, you must be a US Citizen for consideration.\nClearance Level: TS/SCI\nOther Important Information You Should Know\nExpression of Interest: By applying to this job, you are expressing interest in this position and could be considered for other career opportunities where similar skills and requirements have been identified as a match. Should this match be identified you may be contacted for this and future openings.\nAbility to Work Remotely: Onsite Full-time: The work associated with this position will be performed onsite at a designated Lockheed Martin facility.\nWork Schedules: Lockheed Martin supports a variety of alternate work schedules that provide additional flexibility to our employees. Schedules range from standard 40 hours over a five day work week while others may be condensed. These condensed schedules provide employees with additional time away from the office and are in addition to our Paid Time off benefits.\nSchedule for this Position: 9x80 every other Friday off\nPay Rate: The annual base salary range for this position in California, Massachusetts, and New York (excluding most major metropolitan areas), Colorado, Hawaii, Illinois, Maryland, Minnesota, New Jersey, Vermont, Washington or Washington DC is $93,200 - $164,450. For states not referenced above, the salary range for this position will reflect the candidate's final work location. Please note that the salary information is a general guideline only. Lockheed Martin considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/ training, key skills as well as market and business considerations when extending an offer.\nBenefits offered: Medical, Dental, Vision, Life Insurance, Short-Term Disability, Long-Term Disability, 401(k) match, Flexible Spending Accounts, EAP, Education Assistance, Parental Leave, Paid time off, and Holidays.\n(Washington state applicants only) Non-represented full-time employees: accrue at least 10 hours per month of Paid Time Off (PTO) to be used for incidental absences and other reasons; receive at least 90 hours for holidays. Represented full time employees accrue 6.67 hours of Vacation per month; accrue up to 52 hours of sick leave annually; receive at least 96 hours for holidays. PTO, Vacation, sick leave, and holiday hours are prorated based on start date during the calendar year.\nThis position is incentive plan eligible.\nLockheed Martin is an equal opportunity employer. Qualified candidates will be considered without regard to legally protected characteristics.\nThe application window will close in 90 days; applicants are encouraged to apply within 5 - 30 days of the requisition posting date in order to receive optimal consideration.\nAt Lockheed Martin, we use our passion for purposeful innovation to help keep people safe and solve the world's most complex challenges. Our people are some of the greatest minds in the industry and truly make Lockheed Martin a great place to work.\n\nWith our employees as our priority, we provide diverse career opportunities designed to propel, develop, and boost agility. Our flexible schedules, competitive pay, and comprehensive benefits enable our employees to live a healthy, fulfilling life at and outside of work. We place an emphasis on empowering our employees by fostering an inclusive environment built upon integrity and corporate responsibility.\n\nIf this sounds like a culture you connect with, you're invited to apply for this role. Or, if you are unsure whether your experience aligns with the requirements of this position, we encourage you to search on Lockheed Martin Jobs, and apply for roles that align with your qualifications.\nExperience Level: Experienced Professional\nBusiness Unit: SPACE\nRelocation Available: Possible\nCareer Area: Business Development\nType: Full-Time\nShift: First","company":"Lockheed Martin","rawCompany":"lockheedmartin","city":"Littleton","state":"IL","isRemote":false,"isActive":false,"createdAt":"2026-04-14T10:39:07.629Z","occupations":[{"code":"17-2011.00","title":"Aerospace Engineers","slug":"aerospace-engineers"},{"code":"15-1252.00","title":"Software Developers","slug":"software-developers"},{"code":"15-1299.08","title":"Computer Systems Engineers/Architects","slug":"computer-systems-engineers-architects"}],"industries":[{"code":"336414","title":"Guided Missile and Space Vehicle Manufacturing","slug":"guided-missile-and-space-vehicle-manufacturing"},{"code":"927110","title":"Space Research and Technology","slug":"space-research-and-technology"},{"code":"541511","title":"Custom Computer Programming Services","slug":"custom-computer-programming-services"}],"jobPosting":{"@context":"https://schema.org","@type":"JobPosting","title":"Software Engineer - Modeling & Simulation","description":"Job ID: 713417BR\nDate posted: Jan. 05, 2026\n\nDescription:The Lockheed Martin Space Mission Integration team seeks a highly skilled, motivated, and team-oriented software engineer to join our Strategic Operations Analysis team in Littleton, CO. This teams provides physics-based modeling, simulation, and analysis to identify and validate the viability of future space capabilities.\n\nAs a software engineer with Mission Integration, you will contribute to the team's efforts to design, develop, test, and deploy high fidelity multi-domain models to inform executive leadership, space strategy, and business development. This is a unique opportunity to contribute to innovative, forward-leaning programs while working alongside some of the brightest minds in the industry.\n\nResponsibilities include:\n\nPlanning and conducting software development activities\nDesigning, developing, documenting, testing, and debugging software for a system performing complex calculations including orbital projection and multi-domain effects\nApplying the appropriate standards, processes, procedures, and tools throughout the development life cycle. This will include working within an Agile workflow and supporting major program milestone events\nCorrecting program errors, preparing operating instructions, compiling documentation of program development, and analyzing system capabilities, output requirements, input data acquisition, programming techniques and controls\nEnsures software standards are met in conjunction with team leadership\nAssist with modeling, analysis, and visualization of analysis as needed\nBasic Qualifications:\n\nBachelor's or master's degree (or higher) in Computer Science, Computer Engineering, Aerospace Engineering, Physics, Mathematics, Electrical Engineering, or similar technical discipline.\n3+ years of related experience working on software development projects\nAbility to interact with peer-developers to facilitate interoperability with other modeling environments\nExperience working closely with mission analysts to generate lacking analysis capabilities\nUnderstanding of and comfort developing software in C++\nExperience using scripting languages such as Python or MATLAB\nExperience with AFSIM as well as the development and integration of AFSIM plug-ins\nExperience with other modeling environments\nGITLAB management experience to include creating / managing CI/CD pipelines\nExperience supporting modeling & simulation of campaign-level scenarios\nActive TS clearance with ability and willingness to obtain and maintain a TS//SCI clearance. Investigation within the last 5 years\nDesired Skills:\n\nExperience with writing software for computationally complex problems\nDemonstrated understanding of software design with a focus on high throughput calculations\nEnthusiastic, curious, and team focused\nExperience developing software interfaces including integration with third-party API's\nExpertise in both the Space & Aero mission areas with an ability to demonstrate operational and tactical insights to support multi-domain efforts\nActive presence across the AFSIM development community\nExperience conducting joint-domain analysis and product delivery.\nActive TS/SCI clearance\nSecurity Clearance Statement: This position requires a government security clearance, you must be a US Citizen for consideration.\nClearance Level: TS/SCI\nOther Important Information You Should Know\nExpression of Interest: By applying to this job, you are expressing interest in this position and could be considered for other career opportunities where similar skills and requirements have been identified as a match. Should this match be identified you may be contacted for this and future openings.\nAbility to Work Remotely: Onsite Full-time: The work associated with this position will be performed onsite at a designated Lockheed Martin facility.\nWork Schedules: Lockheed Martin supports a variety of alternate work schedules that provide additional flexibility to our employees. Schedules range from standard 40 hours over a five day work week while others may be condensed. These condensed schedules provide employees with additional time away from the office and are in addition to our Paid Time off benefits.\nSchedule for this Position: 9x80 every other Friday off\nPay Rate: The annual base salary range for this position in California, Massachusetts, and New York (excluding most major metropolitan areas), Colorado, Hawaii, Illinois, Maryland, Minnesota, New Jersey, Vermont, Washington or Washington DC is $93,200 - $164,450. For states not referenced above, the salary range for this position will reflect the candidate's final work location. Please note that the salary information is a general guideline only. Lockheed Martin considers factors such as (but not limited to) scope and responsibilities of the position, candidate's work experience, education/ training, key skills as well as market and business considerations when extending an offer.\nBenefits offered: Medical, Dental, Vision, Life Insurance, Short-Term Disability, Long-Term Disability, 401(k) match, Flexible Spending Accounts, EAP, Education Assistance, Parental Leave, Paid time off, and Holidays.\n(Washington state applicants only) Non-represented full-time employees: accrue at least 10 hours per month of Paid Time Off (PTO) to be used for incidental absences and other reasons; receive at least 90 hours for holidays. Represented full time employees accrue 6.67 hours of Vacation per month; accrue up to 52 hours of sick leave annually; receive at least 96 hours for holidays. PTO, Vacation, sick leave, and holiday hours are prorated based on start date during the calendar year.\nThis position is incentive plan eligible.\nLockheed Martin is an equal opportunity employer. Qualified candidates will be considered without regard to legally protected characteristics.\nThe application window will close in 90 days; applicants are encouraged to apply within 5 - 30 days of the requisition posting date in order to receive optimal consideration.\nAt Lockheed Martin, we use our passion for purposeful innovation to help keep people safe and solve the world's most complex challenges. Our people are some of the greatest minds in the industry and truly make Lockheed Martin a great place to work.\n\nWith our employees as our priority, we provide diverse career opportunities designed to propel, develop, and boost agility. Our flexible schedules, competitive pay, and comprehensive benefits enable our employees to live a healthy, fulfilling life at and outside of work. We place an emphasis on empowering our employees by fostering an inclusive environment built upon integrity and corporate responsibility.\n\nIf this sounds like a culture you connect with, you're invited to apply for this role. Or, if you are unsure whether your experience aligns with the requirements of this position, we encourage you to search on Lockheed Martin Jobs, and apply for roles that align with your qualifications.\nExperience Level: Experienced Professional\nBusiness Unit: SPACE\nRelocation Available: Possible\nCareer Area: Business Development\nType: Full-Time\nShift: First","datePosted":"2026-04-14T10:39:07.629Z","dateModified":"2026-04-14T10:39:07.629Z","hiringOrganization":{"@type":"Organization","name":"Lockheed Martin","sameAs":"https://jobsearcher.com"},"jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Littleton","addressRegion":"IL","addressCountry":"US"}},"identifier":{"@type":"PropertyValue","name":"JobSearcher","value":"a39ec58e09b3d936998d2e9d"},"url":"https://jobsearcher.com/jobs/a39ec58e09b3d936998d2e9d"}}