Jobs and Careers

ESS Terminals Systems Engineer

El Segundo, United Statesfull_timeVerifiedPosted 24 Jul 2026

💰 $169,000/yr($135,000/yr – $169,000/yr)

About the role

Modern Technology Solutions, Inc. (MTSI) is seeking an ESS Terminals Systems Engineer to join our team in El Segundo, CA.

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.

Work Environment:

Location: On-site
Travel Requirements: Minimal
Working Hours: Standard

Qualifications:

Required:

Active DoD Secret clearance
Bachelor’s degree in engineering, mathematics, physics, computer science, or related technical field
8+ years’ engineering experience
5+ years’ experience in Systems Engineering, such as requirements and technical baseline development, test planning and integration, verification, and validation
Experience developing or managing requirements or Interface Control Documents (ICDs) for complex systems
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:

Active Top Secret clearance
Master’s degree in technical field, such as engineering, mathematics, physics, or computer science, or related technical field
Experience with MILSATCOM systems, such as AEHF, PTS, EPS, WGS, and FAB-T terminal programs
Experience working with military and DoD civilians
Experience with ground and airborne systems, such as terminals and networks
Knowledge and experience in Agile Development and collaboration tools (Jira/Confluence)
Professional certifications (e.g., PMP, INCOSE CSEP or ESEP)

Compensation: The pay range for this position in California is $135,000/year to $169,000/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.

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