Jobs and Careers
MO
Senior Evolved Strategic Systems (ESS) Ground Systems Integration Engineer
Modern Technology Solutions, Inc.El Segundo, United Statesfull_timeVerifiedPosted 24 Jul 2026
💰 $228,000/yr($183,000/yr – $228,000/yr)
About the role
Modern Technology Solutions, Inc. (MTSI) is seeking a Senior Evolved Strategic Systems (ESS) Ground Systems Integration Engineer to join our team in El Segundo, CA. Due to security requirements, work is required to be on-site in a secure facility.
The MILSATCOM Systems Engineering, Integration, and Test (MSEIT) effort provides leading edge SE&I for the Space Force’s Space System Command. We support the Space Force’s acquisition of state-of-the-art MILSATCOM systems, providing secure global, survivable, and protected communications for our nation’s warfighters. We seek technical individuals who will thrive in a highly collaborative work environment of small teams, using the most modern tools and methodologies to tackle the challenges of integrating complex space and ground communications systems.
Key Responsibilities:
- Lead ground systems engineering and integration activities to develop, define, and implement ESS ground architectures, technical approaches, and engineering processes required to integrate satellite communication systems, segments (Ground, Space, Crypto, and Terminals), subsystems, elements, and components; establish, maintain, and control the technical baseline across multiple stakeholders and programs.
- Perform analysis of the systems requirements that define the technical baseline and verification of the technical baseline
- Apply Digital Engineering methods and modeling strategies (e.g., MBSE, Digital Twins, digital threads, and analytical models) to develop ground architectures, evaluate technical performance, support integration planning, and verify system behavior throughout the lifecycle.
- Work with Government and contractor engineering teams to analyze, resolve, and document technical gaps, requirements discrepancies, interface issues, and architecture trades; support major requirements reviews, architecture reviews, design reviews, and other technical forums.
- Lead and support Government/Contractor Working Group meetings—by developing briefings, leading discussion, and writing minutes—to address/resolve risks, issues, and action items
- Review proposed changes to the technical baseline for impacts to enterprise capabilities and to cross-stakeholder integration concerns
- Conduct trade studies, engineering analyses, and technical assessments to develop and evaluate alternative solutions for complex integration and architecture challenges; assess technical, cost, schedule, and performance impacts of recommended solutions.
- Facilitate technical reviews of program documentation, including requirements specifications, interface control documents (ICDs), verification artifacts, engineering analyses, and design products; provide technical comments and adjudicate resolutions with stakeholders.
- Serve as a subject matter expert to assess technical issues and to prepare briefings to U.S. Space Force program office personnel and other stakeholders; provide courses of actions to support Government decisions
- Support management of risks, issues, interdependencies, identifying schedule disconnects and conflicts, developing action plans for resolution, and assisting the Government in executing selected solutions
Work Environment:
- Location: On-site
- Travel Requirements: Minimal
- Working Hours: Standard
Qualifications:
Required:
- Active Secret clearance required with the ability to obtain a Top Secret clearance
- Bachelor's degree in systems engineering, aerospace engineering, electrical engineering, computer engineering, physics, mathematics, or a related technical discipline.
- 15+ years experience in systems engineering, integration, or architecture development for complex aerospace, defense, or space systems.
- Experience with MILSATCOM, such as AEHF, PTS, EPS, WGS, and FAB-T terminal programs
- Experience working with military and DoD civilians
- Demonstrated experience integrating Space and Ground segments within national security space, military satellite communications, or related space programs.
- Strong interpersonal skills, communication (oral and written), and presentation skills
- Proficient in Microsoft Office products (Word, Excel, Powerpoint)
- Due to security requirements, work is required to be on-site in a secure facility
Desired Skills and Experience:
- TS/SCI (or eligible) clearance
- MS degree in technical field (such as engineering, mathematics, physics, or computer science) or Space Systems
- Experience wi
Apply for this role
Generate a tailored application kit with a matched cover letter, interview prep, and CV highlights — in under 60 seconds.
Apply Now →Generate Application KitFree account required — sign up in 30s