Principal Model- Systems Architect Security Clearance

Position: Principal Model-Based Systems Architect with Security Clearance
Location: Offutt Air Force Base

Position Title:

Principal Model-Based Systems Architect

Location:

Bellevue, NE (Onsite at Offutt AFB)
Clearance Requirements:
Active TS/SCI
Position Status:
Full Time (Contract)
Pay Rate:
Highly competitive, based on qualifications.
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Position

Description:

We are seeking a highly experienced Model-Based Systems Architect to support mission-critical operations for a premier Department of Defense program. This role provides a unique opportunity to shape solutions that contribute directly to U.S. national security, working onsite at Offutt Air Force Base. You will lead efforts in Model-Based Systems Engineering (MBSE), designing complex architectures, and ensuring they align with Unified Architecture Framework (UAF) standards.

Your expertise will help drive the success of key initiatives such as Nuclear Command, Control, and Communications (NC3), Global Strike, and Joint Electromagnetic Spectrum Operations (JEMSO).
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Key Responsibilities:

• Lead MBSE efforts to design, implement, and validate complex system architectures.

• Use modeling tools such as Cameo Enterprise Architect or Magic Draw to develop SysML/UML diagrams.

• Translate operational requirements into architectural models aligned with UAF specifications.

• Collaborate with systems engineers, developers, and government stakeholders to ensure end-to-end system alignment.

• Provide architectural guidance across multiple technical domains in support of the USSTRATCOM mission.
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Required Skills and

Education:

• Bachelor’s degree in Engineering, Computer Science, or a related technical field.

• 20+ years of experience in systems engineering or solution architecture.

• Proficiency in MBSE and the use of SysML/UML modeling tools (Cameo Enterprise Architect or Magic Draw preferred).

• Demonstrated experience modeling in compliance with UAF standards.

• U.S. Citizenship required due to government contract requirements.

• Active TS/SCI security clearance required.
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Preferred Qualifications:

• OCSMP or INCOSE CSEP certification.

• Familiarity with fUML executable models.

• Experience with object-oriented programming (Java preferred).

• Prior experience supporting DoD, military, or intelligence programs.
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About Seneca Resources
At Seneca Resources, we are more than just a staffing and consulting firm—we are a trusted career partner. With offices across the U.S. and clients ranging from Fortune 500 companies to federal agencies, we provide opportunities that help professionals grow their careers while making an impact.
When you work with Seneca, you’re choosing a company that invests in your success, celebrates your achievements, and connects you to meaningful work with leading organizations nationwide. Our consultants and contractors enjoy:

• Competitive pay

• Comprehensive health, dental, and vision coverage

• 401(k) retirement plans

• The support of a dedicated team who will advocate for you every step of the way
Seneca Resources is proud to be an Equal Opportunity Employer, committed to fostering a diverse and inclusive workplace where all qualified individuals are encouraged to apply.