Senior MBSE Systems Engineer – Onsite (Secret)

Piper Companies; St. Louis (MO); On-site; USD 90,000 - 160,000; Full time

Benefits offered by this job

Full benefits package

Job summary

Zachary Piper Solutions is seeking a Model-Based Systems Engineer (MBSE) Level 3 to support advanced aerospace and defense programs within a leading national security organization. The role is fully onsite in St.

Louis, MO or Seattle, WA, requiring an active secret clearance. You will join a high-impact Systems Engineering & Integration team driving next-generation autonomous and weapons system development across complex, proprietary programs.

Qualifications

• Bachelor’s degree in Engineering or related field.
• 5+ years of engineering experience with a Bachelor’s, 3+ years with a Master’s, or equivalent with a PhD.
• Hands-on MBSE experience with Cameo/MSOSA and SysML.
• Active Secret Clearance required prior to start.
• Ability to work 100% onsite in St. Louis or Seattle.

Responsibilities

• Develop and maintain system architectures, requirements, and interfaces.
• Implement MBSE methodologies within a Digital Engineering ecosystem.
• Support cross-functional teams to meet milestones and customer expectations.
• Conduct requirements decomposition, traceability, system architecture modeling, interface definition, and risk assessments.
• Coordinate verification, validation, and test planning activities.
• Assist in technical reviews, documentation, and customer-facing deliverables.

Skills

Strong communication skills

Team collaboration

Education

Bachelor’s degree in Engineering or related field

Master’s degree or PhD in related field

Tools

Cameo/MSOSA

SysML

Job description

Zachary Piper Solutions is seeking a Model-Based Systems Engineer (MBSE) Level 3 to support advanced aerospace and defense programs within a leading national security organization. The role is fully onsite in St.

Louis, MO or Seattle, WA, requiring an active secret clearance. You will join a high-impact Systems Engineering & Integration team driving next-generation autonomous and weapons system development across complex, proprietary programs.