Model Based Systems Engineer III in San Diego

Energy Jobline ZR

San Diego (CA)

Hybrid

USD 147,000 - 195,000

Full time

14 days+

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Benefits offered by this job

PTO package

7 holidays

Medical/Dental/Vision coverage

401(k) with match

Tuition reimbursement

Education benefits (USD)

Cell phone stipend

Hybrid work environment

ADP benefits

Job summary

XSITE LLC in San Diego, CA is seeking a Senior Model Based Systems Engineer III to join our team supporting PMW/A 170 office/contract. The role blends MBSE practice with DoDAF/UAF architecture in a government-facing environment, with hybrid work and security clearances as needed.

Responsibilities include developing MBSE models using SysML/UML, maintaining architecture artifacts, collaborating with cross‑functional teams, and producing technical briefings and documentation.

Qualifications

Master's degree in Engineering or related field.
10+ years of MBSE experience.
Knowledge of SysML/UML modeling.
Experience in cross-platform MBSE/digital engineering environments.
Knowledge of DoDAF/UAF.
Secret clearance or ability to obtain clearance.

Responsibilities

Develop, maintain MBSE models and artifacts to support requirements, design, integration and verification.
Apply SysML and UML to create structured system models and technical products.
Support DoDAF/UAF-based architecture development.
Collaborate with cross-functional teams to ensure traceability and alignment of model artifacts.
Analyze engineering data to support model development and interface definitions.
Prepare technical briefings and MBSE/architecture documentation.

Skills

SysML

UML

MBSE

Cross-functional teamwork

DoDAF/UAF

Secret clearance

Education

Master's degree in Engineering or related field

Tools

SysML/UML tooling

Job description

Job DescriptionJob Description

Position: Model Based Systems Engineer III

Level: Senior

Location: San Diego, CA

Telework: Hybrid remote/onsite, with typical set schedule at Government facility

Travel: <10%

Salary: $147,000-$195,000

XSITE LLC is looking for a Model Based Systems Engineer III to join our teamin San Diego, CA to support the PMW/A 170 office/contract.

We are Service-Disabled Veteran-Owned company headquartered in San Diego. We provide full spectrum systems and systems-of-systems engineering and integration services and solutions for space, C5ISR, cyber and enterprise information systems. Our core capabilities include AI/ML, Software Development & Sustainment, Systems Engineering (including MBSE), and Modeling & Simulation.

Position Overview:

We are seeking a Model Based Systems Engineer III to support advanced systems engineering efforts through the application of Model Based Systems Engineering (MBSE) methodologies, tools, and digital engineering practices. In this role, you will develop and maintain system models, support architecture development and technical analysis, and collaborate with cross-functional teams to ensure models accurately represent system requirements, design, behavior, and interfaces. You will also contribute to work performed in collaborative MBSE/digital environments and support architecture products aligned with Department of Defense standards.

Responsibilities of this position include, but are not limited to:

Develop, maintain, and update Model Based Systems Engineering (MBSE) models and related engineering artifacts to support system requirements, design, analysis, integration, and verification activities.
Apply Systems Modeling (SysML) and/or Unified Modeling (UML) to create structured system models and technical products.
Support system architecture development using Department of Defense Architecture Framework (DoDAF) and/or Unified Architecture Framework (UAF) standards.
Collaborate with cross-functional engineering teams in cross-platform collaborative MBSE and digital engineering environments to ensure consistency, traceability, and technical alignment across model artifacts.
Analyze engineering data and technical information to support model development, system decomposition, interface definition, and technical decision-making.
Assist in the preparation of technical briefings, reports, and other engineering documentation related to MBSE and architecture development efforts.

Required Qualifications:

Master's degree in Engineering, Operations Research, or another science discipline requiring the use of advanced mathematics skills, such as Business, Mathematics, Statistics, or Probability.
Ten (10) years of professional experience performing Model Based Systems Engineering.
Knowledge of Systems Modeling (SysML) and/or Unified Modeling (UML).
Experience working in cross-platform collaborative MBSE and/or digital engineering environments, or equivalent.
Knowledge of the Department of Defense Architecture Framework (DoDAF) and/or Unified Architecture Framework (UAF).
Secret Clearance or ability to obtain a secret clearance.

Why XSITE LLC?

Best-in-Class Benefits & Work-Life Balance

Industry leading PTO package, starting at 15+ days annually.
Seven (7) paid company holidays annually, including New Year's Day, Memorial Day, Independence Day, Labor Day, Veterans Day, Thanksgiving Day, and Christmas Day.
100% employer-paid employee coverage for Medical, Dental, Vision, and Basic Life Insurance. Employees enrolled in XSITE's High Deductible Health Plan (HDHP) are also eligible for a Health Savings Account (HSA) with employer contributions.
Eligibility to participate in XSITE’s 401(k) retirement plan with up to a 6% employer match.
Eligibility to receive tuition reimbursement of up to $5,250 per year for job-related education.
University of San Diego Education Benefits of 10% tuition discount on select online degree programs and 25% discount on certificate programs.
Cell Phone Stipend.
Hybrid work environment.
As well as employee add on benefits offered via ADP.