Principal Model-Based Systems Engineer

Arlington, VAPosted 3 days ago

Role Overview

Systemstechnologyresearch is hiring a Principal Model-Based Systems Engineer. This is a full-time role in Arlington. Part of Systemstechnologyresearch's Lifecycle hiring, posted 3 days ago. Full responsibilities, required qualifications, and the apply link are listed in the description below.

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Job description

STR is hiring a Principal Model-Based Systems Engineer (MBSE) in our Woburn, MA office (other locations: Dayton, OH & Arlington, VA) to work across a broad portfolio of DoD mission areas. The Systems Engineer should have experience leading teams, architecting systems, working across the Systems Engineering Lifecycle, and have experience in Digital Engineering/MBSE. The candidate will support STR’s Systems Development Division in adopting processes and tools to achieve architectural integrity and traceability from requirements analysis through system and software development through production system deployment.

This position offers the opportunity to work with leading domain experts in sensors development and cyber security to incorporate MBSE tools and techniques. The ideal candidate will be well-versed in Systems Engineering techniques, Modeling and Simulation, Digital Engineering/MBSE and be excited about opportunities to mentor more junior staff and help foster growth of subject matter expertise across the organization.

In addition to modeling in SysML, the Systems Engineer will be responsible for implementing and guiding teams in the customization and automation techniques offered by Cameo to enable multi-disciplinary programs to comply with DoD Digital Engineering goals. Proficiency in one or more high-level language (C/C++, Java, Python) is highly desired.

The Systems Engineer should have experience implementing a rigorous MBSE approach to develop DoD systems. New programs at STR will be looking to adopt agile approaches that incorporate model-based requirements management and traceability with software development. This position is well suited for a Systems Engineer with a software development background who is interested in improving the state of the practice and demonstrating the advantages that MBSE can offer.

What you will do:

Leading development programs through the Systems Engineering process using MBSE approaches that support DoD Digital Engineering goals
Leading teams and implementing rigorous MBSE approaches using SysML in Cameo (MagicDraw)
Providing mentorship and training of Systems Engineers on the use of MBSE
Working closely with domain experts and software development teams to realize program designs and digital engineering goals

Who you are:

This position requires an Active DoD Secret Clearance with the ability to obtain a Top Secret (TS) Security Clearance, for which U.S. citizenship is needed by U.S. Government
BS, MS or PhD in Systems Engineering, Aerospace Engineering, or related technical field
Technical Project Lead experience
Minimum of 10 years work experience as a Systems Engineer or related field
Minimum of 5 years experience working with SysML models in Cameo (or similar tool)
Experience working with software-intensive systems and open architecture

Nice to haves:

Active Top Secret Security Clearance
10+ years’ experience in architecting systems using system modeling tools
Domain expertise in one or more of the following areas is desirable; Radar, Electronic Warfare, Acoustic, Antenna Apertures, Sensor Resource Management, Sea/Air/Space, Large-Scale Platform Test Systems, Cyber Physical Systems, Open System Architectures (UCI, OMS, COARPS)
Proficiency in Java, C/C++ or Python
Agile software development experience
Familiarity with specific government open architectures (e.g., Open Mission Systems)

Pay Information
Full-Time Salary Range: $206,000 - $284,000

The salary range listed is based on external market data. Offers are based on factors, such as but not limited to, the candidate’s experience, education, training, key skills/critical skills, security clearances, and prevailing market and business conditions.

STR is a growing technology company with locations near Boston, MA, Arlington, VA, near Dayton, OH, Melbourne, FL, and Carlsbad, CA. We specialize in advanced research and development for defense, intelligence, and national security in: cyber; next generation sensors, radar, sonar, communications, and electronic warfare; and artificial intelligence algorithms and analytics to make sense of the complexity that is exploding around us.

STR is committed to creating a collaborative learning environment that supports deep technical understanding and recognizes the contributions and achievements of all team members. Our work is challenging, and we go home at night knowing that we pushed the envelope of technology and made the world safer.

STR is not just any company. Our people, culture, and attitude along with their unique set of skills, experiences, and perspectives put us on a trajectory to change the world. We can't do it alone, though - we need fellow trailblazers. If you are one, join our team and help to keep our society safe! Visit us at www.str.us for more info.

STR is an equal opportunity employer. We are fully dedicated to hiring the most qualified candidate regardless of race, color, religion, sex (including gender identity, sexual orientation and pregnancy), marital status, national origin, age, veteran status, disability, genetic information or any other characteristic protected by federal, state or local laws.

If you need a reasonable accommodation for any portion of the employment process, email us at appassist@str.us and provide your contact info.

Pursuant to applicable federal law and regulations, positions at STR require employees to obtain national security clearances and satisfy the requirements for compliance with export control and other applicable laws.

About Systemstechnologyresearch

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Frequently Asked Questions

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Where is the Principal Model-Based Systems Engineer position at Systemstechnologyresearch located?

This position is based in Arlington. Systemstechnologyresearch has not indicated remote or hybrid options for this role, so candidates should plan for on-site work.

What does a Principal Model-Based Systems Engineer at Systemstechnologyresearch earn?

Systemstechnologyresearch has not disclosed a salary range in this posting. Many employers share specifics later in the interview process; you can also ask during a recruiter screen if compensation transparency is important to you.

When was the Principal Model-Based Systems Engineer role at Systemstechnologyresearch posted?

This role was posted on July 6, 2026 (3 days ago). It's still listed as actively hiring; we re-confirm openings against the source system multiple times per day and remove closed roles.