New

Senior Satellite Bus Engineer

Modern Technology Solutions, Inc.
$165,000.00 - $215,000.00 / yr
401(k)
United States, California, El Segundo
Sep 16, 2026
Modern Technology Solutions, Inc. (MTSI) is seeking a Senior Satellite Bus Engineer to support the Mobile User Objective System (MUOS) program within Space Systems Command located in El Segundo, CA. In this role, you will help guide the design, development, integration, and testing of the satellite bus and subsystems, ensuring systemlevel performance for the new missioncritical narrowband Satellites. The ideal candidate has strong spacecraft bus engineering expertise and experience supporting Department of War (DoW) space programs.This is a highly technical, hands-on engineering role requiring deep, subsystem-level spacecraft hardware expertise rather than program or project management experience. Responsibilities: * Serve as the primary, on-site technical plant representative at the vendor manufacturing facility for 2-3 days per week, providing direct, hands-on engineering oversight of satellite design, assembly, integration, and testing activities. * Provide senior-level spacecraft bus engineering support for new MUOS spacecraft. * Lead or contribute to the design, analysis, integration, and testing of satellite bus and subsystems, including power, thermal, structure, attitude control, guidance and navigation, propulsion, and command/data handling systems. * Support system engineering activities such as requirements development, allocation, verification, and validation. * Coordinate with payload, mission management, and SSC engineering teams to ensure seamless bus-payload test and integration activities, including spacecraft risk identification and mitigation. * Conduct trade studies, assessments, and risk evaluations to support critical technical decisions related to space systems . * Prepare, review, and update technical documentation including specifications, ICDs, technicalreports, and test plans. * Participate in key program reviews (e.g. SRRs, PDRs, CDRs, TRRs, LRRs) and support onorbit readiness review tasks. * Interface with the spacecraft vendor and ground segment vendor to verify design alignment with program requirements, track compliance throughout development, and resolve technical discrepancies that could impact system performance. * Mentor junior engineers and contribute to a collaborative engineering environment. Qualifications: * Minimum 10 years of direct spacecraft hardware engineering experience (e.g. Power, RF, Propulsion, and/or Structures) in satellite bus design, manufacturing, and assembly. * Demonstrated technical experiencein payload and bus system design, integration, and testing. * Familiarity with MILSTD and DoD space and ground system requirements. * Strong analytical, communication, and technical documentation skills. * Experience in technical risk management. * Must live within local commuting distance of El Segundo, CA to conduct business at the spacecraft vendor's manufacturing facilities. Periodic travel to San Diego will be required. Qualifications Desired: * TS/SCI clearance. * Master's degree in an engineering discipline. * Experience supporting MUOS or other narrowband SATCOM space systems. * Experience in spacecraft modeling/analysis tools such as MATLAB, STK, MSC NASTRAN or other thermal and structural analytical software tools. * Knowledge of SSC/DoD acquisition processes and documentation practices. * Experience supporting DoW space programs. * Experience with Space Systems Command. Education Requirements: * Bachelor's degree in Aerospace Engineering, Mechanical Engineering, Electrical Engineering, or a related technical discipline. Security Clearance Requirements: * Candidate must have an active Secret clearance to start. * U.S. Citizenship is required for this position. Location/Travel Requirements: * Must live within local commuting distance of El Segundo, CA to conduct business at the spacecraft vendor's manufacturing facilities 2-3 days per week. Periodic travel to San Diego will be required. The pay range for this position in California is $165,000/year to $215,000/year; however, base pay offered may vary depending on established government contract ranges, job-related knowledge, skills, and experience, and other factors. MTSI also offers a full range of medical, financial, and other benefits, dependent on the position offered. Base pay information is based on market location. Applications will be accepted on an ongoing basis. This posting will be renewed periodically until the position is filled. #LI-MM1 #MTSI #MTSIJOBS #MUOS Interesting Work: Our co-workers support some of the most important and critical programs to our national defense and security. Values: Our first core value is that employees come first. We challenge our co-workers to provide the highest level of support and service, and reward them with some of the best benefits in the industry. 100% Employee Owned: We have a stake in each other's success, and the success of our customers. It's also nice to know what's going on across the company; we have company wide town-hall meetings three times a year. Great Benefits - Most Full-Time Staff Are Eligible for: Starting PTO accrual of 20 days PTO/year + 10 holidays/year Flexible schedules 6% 401k match with immediate vesting up to $9k annually Semi-annual bonus eligibility (July and December) Company funded Employee Stock Ownership Plan (ESOP) - a separate qualified retirement account Up to $10,000 in annual educational reimbursement Other company funded benefits, like life and disability insurance Optional zero deductible Blue Cross/Blue Shield health insurance plan Track Record of Success: We have grown every year since our founding in 1993. Modern Technology Solutions, Inc. (MTSI) is a 100% employee-owned engineering services and solutions company that provides high-demand technical expertise in Digital Transformation, Modeling and Simulation, Rapid Capability Development, Test and Evaluation, Artificial Intelligence, Autonomy, Cybersecurity and Mission Assurance MTSI delivers capabilities to solve problems of global importance. Founded in 1993, MTSI today has employees at over 20 offices and field sites worldwide. For more information about MTSI, please visit www.mtsi-va.com MTSI embraces nine core values including our first core value of Employees come first. Consistent with our Core Values, we are committed to Equal Opportunity, making decisions without regard to race, color, religion, sex, national origin, age, military/veteran status, disability, or any other characteristics protected by applicable law. MTSI is committed to Equal Employment Opportunity and providing reasonable accommodations to applicants and employees with physical and/or mental disabilities.