Principal Model-Based Systems Engineer
Arcfield
Saint Louis, MO · Posted October 23, 2026
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Where Saint Louis, MO ranks
Where Saint Louis, MO placed in our monthly rankings, month by month. Each month stays online at its own address.
November 2026
- #9Best all-round cities for new graduates in the Midwest52 / 100 · of 20
- #9Cities hosting the most business conferences in the Midwest8 conferences · of 12
- #9Cities hosting the most legal services conferences4 conferences · of 17
- #11Best cities for government pay after cost of living$123k · of 18
- #11Best cities for entry-level jobs that want AI skills in the Midwest4% · of 52
- #12Best all-round cities for remote workers in the Midwest42 / 100 · of 20
Rankings about engineering jobs
- Best cities for software and engineering jobs #1 San Francisco (3,412 openings)
- Best cities for engineering pay after cost of living #1 San Mateo ($216k)
- Most requested AI skills in engineering jobs #1 AI tools in daily work (6.1%)
- AI tools named most often in engineering jobs #1 Claude (1.7%)
- Employers with the most engineering jobs #1 Amazon (2,992 roles)
How AI is used in this kind of work
Among computer occupations, all other, AI is already used for a large share of the tasks. Measured exposure for computer occupations, all other: 31% (high).
Share of this job’s tasks that AI is already used for at work, from real usage. It is not a forecast of job loss, and a low number means no use seen yet. Source: Anthropic Economic Index.
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About the job
Responsibilities
This position is for Strategic Technology Consulting - STC, An Arcfield Company
Are you ready to take your career to the next level? Join us in St. Louis, Missouri, and play a pivotal role in enabling teams to collaborate on state-of-the-art Model-Based Systems Engineering (MBSE) solutions. As an on-site Principal Model-Based Systems Engineer, you will act as the subject matter expert in model management, administering and maintaining a federated set of SysML models in Teamwork Cloud (TWC) across multiple classification levels. If you’re enthusiastic about MBSE, managing complex systems environments, and delivering impactful technical solutions, this opportunity is made for you.
Responsibilities:
Serve as the model management Subject Matter Expert (SME) for the Teamwork Cloud environment.
Administer and maintain a federated set of SysML models across different classification levels.
Ensure up-to-date and consistent project usages across hundreds of projects utilizing Teamwork Cloud.
Troubleshoot issues with the Cameo Systems Modeler tool and the Teamwork Cloud environment, ensuring minimal disruption to engineering processes.
Oversee and manage user accounts, access permissions, and all other aspects of environment access administration.
Implement and maintain standard workflows, processes, and templates for SysML modeling, ensuring compliance with organizational and program-specific guidelines.
Collaborate with system architects, project teams, and IT support staff to resolve configuration, deployment, and integration challenges.
Why Join Us?
Join a team of world-class MBSE and DE Experts.
Be part of a dynamic team working on groundbreaking projects.
Contribute to the development of state-of-the-art systems and make a lasting impact in the industry.
Exercise considerable latitude in determining objectives and approaches to assignments, giving you the freedom to innovate and excel.
Principal Model Based Systems Engineer, I09, SSMBEI09
Qualifications
BS 8-10, MS 6-8, PhD 3-5 (Bachelor’s degree in Systems Engineering, Aerospace Engineering, Electrical Engineering, or a related technical discipline (Master’s degree preferred).
Experience with one or more of the following NoMagic
MagicDraw
Cameo
CATIA Magic System of Systems Architect
SysML
UPDM
IBM Rhapsody
Ability to obtain and maintain a Top Secret/SCI, must possesse and maintain a Top Secret to start.
Equal Pay Act
This is the projected compensation range for this position. There are differentiating factors that can impact a final salary/hourly rate, including, but not limited to, Contract Wage Determination, relevant work experience, skills and competencies that align to the specified role, geographic location (For Remote Opportunities), education and certifications as well as Federal Government Contract Labor categories. In addition, Arcfield invests in its employees beyond just compensation. Arcfield ’s benefits offerings include, dependent upon position, Health Insurance, Life Insurance, Paid Time Off, Holiday Pay, Short Term and Long-Term Disability, Retirement and Savings, Learning and Development opportunities, wellness programs as well as other optional benefit elections.
Min: $110,736.50 Max: $175,856.18 EEO Statement
We are an equal opportunity employer and federal government contractor. We do not discriminate against any employee or applicant for employment as protected by law.
This position is for Strategic Technology Consulting - STC, An Arcfield Company
Are you ready to take your career to the next level? Join us in St. Louis, Missouri, and play a pivotal role in enabling teams to collaborate on state-of-the-art Model-Based Systems Engineering (MBSE) solutions. As an on-site Principal Model-Based Systems Engineer, you will act as the subject matter expert in model management, administering and maintaining a federated set of SysML models in Teamwork Cloud (TWC) across multiple classification levels. If you’re enthusiastic about MBSE, managing complex systems environments, and delivering impactful technical solutions, this opportunity is made for you.
Responsibilities:
Serve as the model management Subject Matter Expert (SME) for the Teamwork Cloud environment.
Administer and maintain a federated set of SysML models across different classification levels.
Ensure up-to-date and consistent project usages across hundreds of projects utilizing Teamwork Cloud.
Troubleshoot issues with the Cameo Systems Modeler tool and the Teamwork Cloud environment, ensuring minimal disruption to engineering processes.
Oversee and manage user accounts, access permissions, and all other aspects of environment access administration.
Implement and maintain standard workflows, processes, and templates for SysML modeling, ensuring compliance with organizational and program-specific guidelines.
Collaborate with system architects, project teams, and IT support staff to resolve configuration, deployment, and integration challenges.
Why Join Us?
Join a team of world-class MBSE and DE Experts.
Be part of a dynamic team working on groundbreaking projects.
Contribute to the development of state-of-the-art systems and make a lasting impact in the industry.
Exercise considerable latitude in determining objectives and approaches to assignments, giving you the freedom to innovate and excel.
Principal Model Based Systems Engineer, I09, SSMBEI09
BS 8-10, MS 6-8, PhD 3-5 (Bachelor’s degree in Systems Engineering, Aerospace Engineering, Electrical Engineering, or a related technical discipline (Master’s degree preferred).
Experience with one or more of the following NoMagic
MagicDraw
Cameo
CATIA Magic System of Systems Architect
SysML
UPDM
IBM Rhapsody
Ability to obtain and maintain a Top Secret/SCI, must possesse and maintain a Top Secret to start.