Full-Time
Senior Digital MBSE Engineer
Updated on 9/3/2026
Space Systems Integration
11-50 employees
Provides engineering services for space systems
Compensation Overview
$210k - $235k/yr
No H1B Sponsorship
El Segundo, CA, USA
In Person
On-site in El Segundo, California.
US Top Secret Clearance Required
Bachelor's, Master's
 Aerospace Engineering |
|---|
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- Bachelor of Science in Engineering or a relevant discipline with 14+ years of experience
- Systems engineering and architecting for major systems acquisitions utilizing Digital Engineering methodologies
- Model-Based Systems Engineering (MBSE) methods and descriptive modeling frameworks such as SysML
- Experience in Cameo Systems Architect or SparX Enterprise Architect
- Understanding of DoDAF views for system of system architectures and plans
- Modeling Simulation and Analysis (MS&A) experience in parametric and physics-based assessment of systems
- Active TS clearance with in-scope T5/SSBI is required, along with SCI eligibility and participation in Continuous Evaluation
- Must meet all requirements for SCI and SAP access and be willing to undergo a polygraph examination
- Provide leadership advice on mission engineering strategies for SoS architectures and strategic messaging to key operational and government stakeholders
- Provide systems engineering and mission architecting support
- Technical requirements generation/review/compliance supporting space systems technical review and assessments
- Develop mitigation plans for discovered and recorded Risks, Issues, and Gaps (RIGs) to provide senior leadership the information needed to close RIGs and vulnerabilities
- Identify activities and functions critical to mission thread development, deriving and modeling the as-is and to-be functional and physical architectures
- Provide program and technical insight to the modeling and analysis staff regarding system architecture designs, interfaces, schedule, and assumptions
- Drive integration and utilization of Digital Engineering (DE) practices of Model-Based Systems Engineering (MBSE) and Modeling, Simulation, & Analysis (MS&A) to include the conversion of legacy Systems Engineering content into digital formats
- Master’s Degree, 12+ years of relevant experience is preferred
- Fluency in Department of War architectural frameworks (e.g., DoDAF)
- Military Space Operations with an emphasis in Space Domain Awareness and Combat Power programs and capabilities
- Experience working in a development environment and/or U.S. Government weapons system program office
- Led the development of a Digital Engineering Thread utilizing MBSE and MS&A artifacts, leading to a validated and verified system architecture
- Professional certification (e.g., Professional Engineer, INCOSE CSEP, etc.)
- Knowledge of Digital Engineering and operational analysis processes and tools, as well as their application in producing data-driven analysis results
Space Systems Integration provides engineering services in Northern Virginia, focusing on space systems and related programs. The company works by offering engineering support, systems integration, and technical services to government and defense projects. It differentiates itself through its emphasis on space systems and its location in the Northern Virginia region, which positions it to work closely with government agencies and defense contractors. The goal is to deliver reliable engineering solutions that help customers plan, build, and integrate space-related systems and programs.
Company Size
11-50
Company Stage
N/A
Total Funding
N/A
Headquarters
Chantilly, Virginia
Founded
2005
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Simplify's Take
What believers are saying
- SSI’s careers page posted July 2026, showing active hiring demand in Northern Virginia.
- LinkedIn updated September 1, 2026, confirming Chantilly-area headquarters and operational continuity.
- Defense space spending remains strong around Space Force integration work SSI sells into.
What critics are saying
- HigherGov shows SSI’s MAS contract ended November 7, 2024, shrinking visible pipeline.
- SSI has no publicly visible federal awards after June 3, 2025, signaling stagnation.
- September 15, 2026 registration expiration risks awards suspension if renewal slips.
What makes Space Systems Integration unique
- SSI has 2005 roots in TS/SCI space systems engineering for defense and intelligence.
- SSI’s niche spans integration, test, launch prep, and mission management for space programs.
- SSI’s Northern Virginia footprint keeps it close to Space Force and IC customers.
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