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Model Based System Engineer Jobs in California (NOW HIRING)

SAIC

Model Based Systems Engineer

San Diego, CA · On-site

$160K - $200K/yr

Develop, manage, and maintain system architecture models using Model-Based Systems Engineering (MBSE) tools and methodologies (e.g., SysML, UPDM, DoDAF). * Lead the definition, decomposition, and ...

G2 Ops, Inc.

Model-Based Systems Engineer

San Diego, CA · On-site

$90K - $200K/yr

We are seeking motivated, collaborative Model-Based Systems Engineers (MBSE) to support Digital ... Develop and maintain system models and architectures using Cameo/MagicDraw, SysML, and related MBSE ...

SAIC

Model Based Systems Engineer

San Diego, CA · On-site +1

$160K - $200K/yr

Develop, manage, and maintain system architecture models using Model-Based Systems Engineering (MBSE) tools and methodologies (e.g., SysML, UPDM, DoDAF). * Lead the definition, decomposition, and ...

XSITE LLC

Model Based Systems Engineer II

San Diego, CA · On-site

$111K - $141K/yr

Analyze system information and engineering data to support model development, system decomposition, and technical decision-making. * Assistin the preparation of technical briefings, reports, and ...

XSITE LLC

Model Based Systems Engineer III

San Diego, CA · On-site

$147K - $195K/yr

Model Based Systems Engineer III Level: Senior Location: San Diego, CA Telework: Hybrid remote ... In this role, you will develop and maintain system models, support architecture development and ...

XSITE LLC

Model Based Systems Engineer III

San Diego, CA · On-site

$147K - $195K/yr

Model Based Systems Engineer III Level: Senior Location: San Diego, CA Telework: Hybrid remote ... In this role, you will develop and maintain system models, support architecture development and ...

SAIC

Model Based Systems Engineer

San Diego, CA · On-site

$160K - $200K/yr

Develop, manage, and maintain system architecture models using Model-Based Systems Engineering (MBSE) tools and methodologies (e.g., SysML, UPDM, DoDAF). * Lead the definition, decomposition, and ...

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Model Based System Engineer information

What is a model based system engineer?

A Model Based System Engineer (MBSE) is a professional who uses modeling techniques and tools to design, analyze, and manage complex systems throughout their lifecycle. Instead of relying solely on traditional document-based methods, MBSE professionals create digital models that represent the structure, behavior, and requirements of systems. This approach helps improve understanding, communication, and traceability among stakeholders, leading to more efficient and reliable system development. MBSE is commonly used in industries like aerospace, automotive, defense, and healthcare to manage complex engineering projects.

What are the key skills and qualifications needed to thrive as a model based system engineer, and why are they important?

To thrive as a Model Based System Engineer, you need a solid background in systems engineering principles, requirements analysis, and modeling languages like SysML, often supported by a degree in engineering or computer science. Proficiency with modeling tools such as IBM Rhapsody, MagicDraw, or MATLAB/Simulink, and familiarity with systems engineering standards like INCOSE certification, are typically required. Strong analytical thinking, effective communication, and problem-solving abilities are key soft skills in this role. These skills ensure efficient system design, clear stakeholder communication, and successful integration of complex systems in multidisciplinary environments.

How does a model based system engineer typically collaborate with cross-functional teams during a project lifecycle?

Model Based System Engineers work closely with multidisciplinary teams, including software developers, hardware engineers, and project managers, to ensure system models accurately reflect requirements and constraints. They often facilitate communication by translating complex system behaviors into visual models that are easily understood by all stakeholders. Throughout the project lifecycle, they participate in design reviews, update models based on team feedback, and help validate that the final system meets its intended functionality. This collaborative approach helps reduce misunderstandings and streamlines the integration of various subsystems.

What is the difference between Model Based System Engineer vs Systems Engineer?

AspectModel Based System EngineerSystems Engineer
CredentialsTypically requires systems engineering certifications, knowledge of modeling toolsOften holds a bachelor's or master's in engineering, with certifications like INCOSE
Work EnvironmentFocuses on system modeling, simulation, and design using specialized toolsInvolves system integration, testing, and requirements management
Industry UsageCommon in aerospace, defense, automotive, and complex systems industriesWidely used across IT, manufacturing, and engineering sectors

While both roles require strong engineering backgrounds, Model Based System Engineers specialize in creating and analyzing system models to optimize design, whereas Systems Engineers focus on integrating and managing entire systems throughout their lifecycle.

Model Based System Engineer jobs near you
Infographic showing various Model Based System Engineer job openings in California as of September 2026, with employment types broken down into 77% Full Time, and 23% Contract. Highlights an 100% In-person job distribution.

Model Based Systems Engineer

San Diego, CA • On-site

Science Applications International Corporation
IT Services • 10K+ employees
Learn more about Science Applications International Corporationexternal

Full-time

Re-posted 6 days ago

SAIC rating

7.7

Company rating: 7.7 out of 10

Based on 82 frontline employees who took The Breakroom Quiz

Job description

SAIC is seeking an experienced Model Based Systems Engineer (MBSE) to join our Technical Engineering and Design Department in support of our United States Air Force customer. This position is on-site in San Diego, CA.

Responsibilities:

  • Apply systems engineering principles and best practices across the full lifecycle of a technical program, from concept to disposal.
  • Develop, manage, and maintain system architecture models using Model-Based Systems Engineering (MBSE) tools and methodologies (e.g., SysML, UPDM, DoDAF).
  • Lead the definition, decomposition, and management of system requirements, ensuring traceability and alignment with program objectives and stakeholder needs.
  • Conduct trade studies, analyses of alternatives, and risk assessments to inform key technical decisions and mitigate program risks.
  • Define and manage system interfaces, ensuring interoperability and integration between system components.
  • Collaborate closely with cross-functional teams, including software, hardware, and test engineers, to ensure a cohesive and integrated system design.
  • Support system integration, verification, and validation activities to ensure the system meets all requirements and is fit for purpose.
  • Prepare and present technical documentation, system models, and briefings to both technical and non-technical stakeholders.
  • Work with program management to ensure technical solutions are developed on schedule and within budget.
  • Identify opportunities for process improvements and contribute to the continuous enhancement of the systems engineering discipline within the program.
SAIC is a premier mission integrator focused on advancing the power of technology and innovation to serve and protect our world. Our robust portfolio of offerings across the defense, space, intelligence, and civilian markets includes secure high-end solutions in mission IT, enterprise IT, engineering services, and professional services. We integrate emerging technology, rapidly and securely, into mission critical operations that modernize and enable critical national imperatives.

We are approximately 23,000 strong; driven by mission, united by purpose, and inspired by opportunities. SAIC is an Equal Opportunity Employer. Headquartered in Reston, Virginia, SAIC has annual revenues of approximately $7.3 billion. For more information, visit saic.com. For ongoing news, please visit our newsroom.
  • Active TS/SCI security clearance.
  • Bachelor of Science (B.S.) in a relevant technical field such as Systems Engineering, Electrical Engineering, Aerospace Engineering, or Computer Science.
  • 5+ years of progressive experience in systems engineering on complex technical or aerospace/defense programs.
  • Demonstrated expertise in Model-Based Systems Engineering (MBSE) with proficiency in tools such as Cameo Systems Modeler, Sparx EA, or Rhapsody.
  • Strong understanding of the entire systems engineering lifecycle, from requirements analysis to system deployment and support.
  • Experience with requirements management tools (e.g., DOORS, JAMA).
  • Familiarity with architecture frameworks such as DoDAF, UPDM, or UAF.
  • Proven track record in conducting trade studies, risk analysis, and interface control.
  • Excellent problem-solving, critical-thinking, and analytical skills.
  • Strong written and verbal communication skills, with the ability to effectively collaborate with a diverse team.
  • INCOSE certification (e.g., CSEP, ASEP) is highly desirable.

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