Onsite MBSE Systems Engineer – Secret Clearance (STL/SEA)

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

Benefits offered by this job

Cigna Medical

Dental

Vision

401K

PTO

Sick Leave

Holidays

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. You’ll join a high‑impact Systems Engineering & Integration team driving next‑generation autonomous and weapons system development across highly complex, proprietary programs.

This role is fully onsite in St. Louis, Missouri or Seattle, Washington.

Qualifications

• : Bachelor’s degree in Engineering, Engineering Technology, Computer Science, Physics, Mathematics, Chemistry, or related technical field.

Responsibilities

• Support cross-functional engineering teams in developing advanced autonomous and complex systems aligned with program milestones and customer expectations.
• Implement and mature MBSE methodologies within a Digital Engineering ecosystem.
• Develop and maintain system architectures, requirements, and interfaces using tools such as Cameo, MSOSA, and SysML.
• Execute full lifecycle systems engineering activities, including: Requirements decomposition & traceability; System architecture modeling; Interface definition & management; Operational and environments analysis; Specification development; Trade studies and technical assessments; Risk identification & mitigation; Verification, validation, and test planning; Certification planning & execution.
• Support technical reviews, documentation, and customer-facing deliverables.
• Collaborate with SMEs across multiple engineering disciplines to integrate complex system capabilities.

Skills

MBSE

Cameo/MSOSA

SysML

Clearance

Onsite work

Education

Bachelor’s degree in Engineering or related field

5+ years of engineering experience (or 3+ with Master)

Active Secret Clearance

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. You’ll join a high‑impact Systems Engineering & Integration team driving next‑generation autonomous and weapons system development across highly complex, proprietary programs.

This role is fully onsite in St. Louis, Missouri or Seattle, Washington.