{"id":2808397,"url":"https://alion.io/job/lockheed-martin-simulation-systems-integration-engineer","title":"Simulation Systems Integration Engineer","company":{"id":37086,"name":"Lockheed Martin","domain":"lockheedmartin.com","url":"https://alion.io/company/lockheedmartin","size_band":"5000+","is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Eightfold","truth_index":{"grade":"A","score":99,"open_postings":254,"ghost_share":0,"stale_share":0,"repost_share":0.067,"time_to_fill_p50_days":28,"computed_at":"2026-10-17T05:46:00Z"}},"role":"DevOps","role_family":"DevOps","seniority":"senior","employment_type":null,"work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":["Littleton, United States"],"countries":["US"],"hiring_countries":[],"hiring_countries_total":0,"salary":{"min":145100,"max":269500,"currency":"USD","period":"year","gross":null,"usd_annual":269500},"salary_estimate":null,"experience_years_min":8,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"C++","optional":false},{"name":"Digital Twin","optional":false},{"name":"Python","optional":false},{"name":"RTOS","optional":false}],"status":"live","first_seen_at":"2026-08-14T20:40:31Z","employer_posted_date":"2026-08-31","last_verified_at":"2026-10-19T00:50:18Z","board_verified":true,"closed_at":null,"days_open":65,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":65},"description":"Standard Job Description\nSpace is a critical domain, connecting our technologies, our security and our humanity. While others view space as a destination, we see it as a realm of possibilities, where we can do more - we can innovate, invest, inspire and integrate our capabilities to transform the future.\nAt Lockheed Martin Space, we aim to harness the full potential of space to cultivate innovation, reduce costs, and push the boundaries of what technology can achieve. We’re creating future-ready solutions, focusing on resiliency and urgency through our 21st Century Security® vision. We’re erasing boundaries and forming partnerships across industries and around the world. We’re advancing spacecraft and the workforce to fuel the next generation. And we’re reimagining how space can connect us, ensuring security and prosperity.\nJoin us in shaping a new era in space and find a career that's built for you.\nA Level 5 Simulation Integration Engineer is a senior role responsible for architecting, validating, and deploying complex modeling and simulation frameworks that bridge physics based simulations with physical hardware. Candidates must typically possess a STEM Bachelor’s Degree with 8+ years of experience, or a Master's degree with 7+ years of experience.\nWe are seeking an innovative, highly technical Level 5 Simulation Integration Engineer to lead the design, development, and validation of an integrated system level simulation. Including hardware-in-the-loop (HWIL) and software-in-the-loop (SWIL) test environments. In this role, you will join a fast paced system level simulation team, leading cross-functional integration activities, ensure simulation fidelity, and act as the principal bridge between software, hardware, and systems engineering teams.\nKey Responsibilities\nSimulation Architecture: Architect, build, and maintain scalable virtual environments, digital twins, and simulation frameworks.\nIntegration & Verification: Lead subsystem’s (PSOC & Reentry), hardware-in-the-loop (HWIL) and software-in-the-loop (SWIL) simulation integration into the system level simulation. Validate simulation models against real-world hardware behavior and testing data.\nIdentify, pursue, and implement 1LMx solutions for simulation, analysis, and MBSE across the FBM program\nCross-Functional Leadership: Serve as a technical authority, guiding junior and mid-level engineers in the integration and testing processes.\nTool Development: Develop and deploy custom scripts, APIs, and plugins to connect domain models, allowing for seamless data exchange between simulation and SCADA/control systems.\nTechnical Documentation: Author master test plans, system requirements, and interface control documents ensuring alignment with industry and government guidelines.\nRoot Cause Analysis: Identify and troubleshoot system anomalies. Trace discrepancies to either simulation artifacts or hardware integration flaws and implement corrective actions.\nThe information below reflects the standard job description for this position\nPerforms technical planning, system integration, verification and validation, cost and risk, and supportability and effectiveness analyses for total systems. Analyses are performed at all levels of total system product to include: concept, design, fabrication, test, installation, operation, maintenance and disposal. Ensures the logical and systematic conversion of customer or product requirements into total systems solutions that acknowledge technical, schedule, and cost constraints. Performs functional analysis, timeline analysis, detail trade studies, requirements allocation and interface definition studies to translate customer requirements into hardware and software specifications.\nBasic Qualifications\nExperience: Minimum of 8+ years of relevant industry experience (or 7+ years with a Master’s degree) in modeling, simulation, and integration.\nTechnical Proficiency: Expert-level capability in languages like Python and C++. Experience with simulation or electrical design tools (e.g., ARISE, STK, PREPAR3DMATLAB/Simulink, SPICE, etc.).\nPhysics Based (6DOF) simulation and analysis experience\nSystems Understanding: Strong working knowledge of embedded systems, real-time operating systems (RTOS), and interface protocols (e.g., CAN, Ethernet).\nLeadership: Demonstrated ability to manage projects, lead design reviews, engage with external partners and mentor team members.\nClearance/Citizenship: Must be a U.S. Person (U.S. Citizen or Permanent Resident) with active Final Secret and ability to obtain and maintain a U.S. Government DoD Top Secret clearance.\nDesired Skills\nEducation: Bachelor’s Degree in Electrical Engineering, Computer Science, Aerospace, Systems Engineering, or a related technical discipline.\nAdvanced Degree: Master’s Degree or Ph.D. in a core engineering or computer science discipline.\nDomain Experience: Prior work in defense, aerospace, autonomous vehicles, or heavily regulated industrial controls.\nClearance: Active DoD Secret or Top Secret U.S. Security Clearance.\nPay Information\nFull-Time Salary Range: $145100.00 - $269500.00\nAt Lockheed Martin, we know mission success starts with taking care of our people. Our Total Rewards program is designed to attract top talent, support your well-being, and help you grow-both professionally and personally.\nThe salary range for this position is as listed on the requisition. Please note that the salary information listed 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(work location) and business considerations when extending an offer.\nBenefits offered: Medical, Dental, Vision, Flexible work arrangements and schedules (e.g., 4x10), 401(k) match, Paid time off, Holidays, Parental Leave, EAP, Flexible Spending Accounts, Education Assistance, Life Insurance, Short-Term Disability, and Long-Term Disability.\nAnnual short-term and/or long-term incentive compensation programs may be offered depending on the position. Payments under these annual programs are not guaranteed and can vary from year to year and are tied to a range of performance metrics.\nFor (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. 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