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Gromelski & Associates, Inc.

Model-Based Systems Engineer

Manassas, VA, United States

Location: Manassas, Va Start Date: Negotiable Salary Range: $120,000 – $180,000

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Job details

Pay: Location: Manassas, Va Start Date: Negotiable Salary Range: $120,000 – $180,000
Experience: 3–5 years of MBSE experience, preferably with Cameo Systems Modeler .
Posting language: English
Posted: Oct 31, 2026

Original job description

Model-Based Systems Engineer

Location Manassas, VA (Relocation Assistance Available)

Job Category Engineering

ID 780

Model‑Based Systems Engineer (MBSE) – Full‑Time

Location: Manassas, Va Start Date: Negotiable Salary Range: $120,000 – $180,000

Gromelski and Associates, Inc. (GAI) partners with prime contractors to provide professional services. Key service areas include Engineering Design and Documentation; Software Development and Testing; System Integration, Testing and Evaluation; Lab Management and Field Installation; Integrated Logistics Support, Training Development and Delivery, Multimedia Support, and Technical System Support.

About the Role

We’re looking for a versatile Model‑Based Systems Engineer who can seamlessly blend strategic requirements management with hands‑on engineering. In our Agile, Program‑Increment‑driven environment you’ll partner with software, cyber, hardware, and safety teams to create traceable, high‑quality system models and documentation that power successful development, integration, and test. Join a collaborative, innovation‑focused organization where your work directly fuels mission‑critical capabilities and where growth and impact are celebrated.

Core Responsibilities

Area

What You’ll Do

Requirements & Risk Management

Develop, allocate, and trace system requirements in JIRA.
Conduct risk analyses, trade studies, and interface definition.
Drive TBD/TBR burndown and keep charts up‑to‑date.

Model‑Based Systems Engineering

Build and maintain SysML (v1/v2) models in Cameo that capture behavior, interfaces, and allocations.
Keep models synchronized with downstream design, I&T, and verification artifacts.

Interface & Architecture Leadership

Lead cross‑disciplinary interface definition (software, cyber, hardware, human factors, safety).
Ensure architecture, requirements, and ICDs remain consistent.

Government & Customer Reviews

Prepare and present technical content for CDR‑type design reviews.
Produce traceability matrices and MBSE visualizations for senior government stakeholders.

Agile Execution & Collaboration

Operate within an Agile, PI‑based workflow.
Align SE stories with feature teams, close SE tasks, and manage pop‑up or government‑directed work.

Hands‑On Engineering Support

Execute test & evaluation, scripting, configuration, and problem‑resolution activities.
Support system installation, patching, hardware configuration, and EOL part management.

Transition Planning

Aid the hand‑off from Development to Integration & Test, ensuring models, requirements, and interfaces are ready for the next phase.

Required Skills & Experience

Must‑Have

Preferred

Bachelor’s degree in Engineering, Computer Science, or a related field (or equivalent experience).

Advanced degree (M.S./Ph.D.) in Systems Engineering or related discipline.

3–5 years of MBSE experience, preferably with Cameo Systems Modeler .

Certified SysML Professional (v1 or v2).

Proficiency in SysML (v1/v2) and strong model‑management practices.

Experience with DOORS, Polarion, or Jama for requirements traceability.

Proven ability to manage requirements, risks, and interfaces in JIRA .

Prior work on DoD contracts and familiarity with acquisition processes (CDR, TRR, etc.).

Excellent written and verbal communication; ability to produce clear technical docs and review decks.

Knowledge of cybersecurity and safety engineering principles.

Self‑starter with strong ownership and independent‑working ability.

Experience in Agile PI planning and sprint execution within multidisciplinary teams.

U.S. citizenship and ability to obtain/maintain a DoD Secret clearance .

Familiarity with hardware configuration management and EOL part tracking.

Personal Attributes

Proactive self‑starter – anticipates issues and drives solutions without waiting for direction.
Team‑oriented collaborator – builds strong relationships across software, hardware, cyber, and safety disciplines.
Detail‑focused yet big‑picture aware – ensures model fidelity while keeping schedule, cost, and performance goals in view.

Benefits

Competitive health, dental, and vision plans
401(k) with company match
Generous paid time off & holidays
Professional‑development assistance (certifications, training)
Flexible work arrangements and modern office environment

For a full list of benefits, visit our Careers page:Careers | GAI (https://e-gai.com)

How to Apply

Submit your résumé and a brief cover letter highlighting your MBSE experience (Cameo, SysML, JIRA) and any relevant government‑contract work.

We look forward to adding a dynamic systems engineer to our team who will help shape the future of our mission‑critical solutions.

Gromelski and Associates is an equal opportunity employer and does not discriminate in employment on the basis of race, color, religion, sex, pregnancy, national origin, political affiliation, sexual orientation, marital status, disability, genetic information, age, membership in an employee organization, retaliation, parental status, military service or other non-merit factor.

If you have reached our website in search of an employment opportunity or to apply for a position, and you require an accommodation, please contact Sarah Gromelski via email at info@e-gai.com . All information you provide will be kept confidential and will be used only to the extent required to provide needed reasonable accommodation.

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More about this job

Skills

Documentation
Risk management
Atlassian JIRA
Leadership
Agile
Collaboration
Workflow
Computer science
Communication skills
Cybersecurity
Safety engineering

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