Model Based Systems Engineer (MBSE) Modeler (ES4) - San Diego, CA

Model Based Systems Engineer (MBSE) Modeler (ES4) - San Diego, CA Job ID: 2026-139 Date Posted: 2026-03-30T00:00:00 Location: San Diego, California Minimum Experience: 10 years Education: Master's Degree Epsilon C5I ( a division of Epsilon Systems Solutions, is a 100 percent employee-owned company founded in 1998 with more than 20 locations serving the Department of Defense, Department of Energy, Department of Homeland Security, non-profit and commercial customers. The Dayton division has recently been named as one of only five prime awardees for the 10-year, $4.7 billion NOVASTAR contract supporting the National Air and Space Intelligence Center (NASIC), WPAFB, Ohio. The Dayton division is currently searching for a Model Based System Engineer (MBSE) Modeler (ES4) to join our team in San Diego, CA. On a daily basis, the candidate will be providing engineering model support for scenario-based campaign planning. This involves using System Modeling Language (SysML) 2.0 or a similar Design Innovation Environment (DIE) tool to create models of specific regional scenarios over various timeframes, collaborating closely with all-source analysts, other contractors, and various NASIC Squadrons. As you build these models, you’ll also be responsible for documenting the creation process step-by-step, all while adhering to an agreed-upon delivery timeline for the Model-Based Systems Engineering (MBSE) model. Candidates must be able to work independently and as part of a technical team and have effective oral and written communication skills. Successful candidates will have strong problem solving and critical thinking skills. Most of the work supports the Scientific and Technical Intelligence community. This challenging position requires a diverse set of technical and task management skills and allows for the opportunity to contribute immediately to important, meaningful work. Desire an active TS/SCI clearance. Work is performed onsite in the Dayton, Ohio area. Duties and Responsibilities Create system reference models. Perform and lead system analysis. Supervise the efforts of other model-based systems engineers. Write analysis reports and develop briefings. Work independently and in a team environment. Required Qualifications Master's degree in Systems Engineering, Electrical Engineering, Physical Sciences, Computer Engineering, Data Science, Computer Science, Software Engineering, or other closely related field. 10+ years of relevant experience in engineering, science, or mathematics. Strong Systems Engineering Foundation: A solid understanding of systems engineering principles and methodologies, particularly Model-Based Systems Engineering (MBSE). Familiarity with Cameo. Familiarity with AFSIM/NGTS/ArcGIS. System Modelling Language (SysML) 2.0, or similar compatible Design Innovation Environment (DIE) tool. Background knowledge or experience primarily in INDOPACOM, but also EUCOM and CENTCOM AORs. Must have strong written communication skills, possess good people skills, demonstrate strong attention to detail and have the desire to work on a highly focused technical team of engineers, analysts, and scientists. Possess effective communication and be able to collaborate with Customers, and cross-functional teams, document technical processes, and present solutions to stakeholders. Must be able to prioritize tasks effectively, manage deadlines, and handle multiple projects simultaneously. Excellent organizational skills and keen attention to detail, with the ability to multitask and prioritize effectively in a fast-paced, dynamic work environment. Enthusiasm for learning and adapting to new technologies and methodologies. Pursuant to the various government contractual requirements, all applicants must be U.S. Citizens. Applicant must have an active DoD Top Secret Security Clearance, with SCI eligibility. Preferred Qualifications Scenario-Based Modeling Expertise: Demonstrated ability to create and analyze engineering models for scenario-based campaign planning and execution. This involves translating real-world scenarios into functional system models. SysML 2.0 Proficiency: In-depth knowledge and practical experience with System Modeling Language (SysML), specifically version 2.0. This includes understanding its textual and graphical notations, metamodel, and how to effectively apply it for modeling complex systems, behaviors, and requirements. Familiarity with AI/ML models to process and analyze large datasets. Previous IC or DoD program/project work experience. Pay Range The salary range for this role is $175,000 - $190,000 annually. This is a reasonable estimate for this role. Individual salaries are determined by a variety of factors including, but not limited to: business considerations, local market conditions, and internal equity, as well as candidate qualifications, such as skills, education, and experience. ADA Notations Regular communication (hearing/speaking). Noise conditions range from very quiet to noisy. Prolonged use of computer (typing/keyboarding). Frequently required to sit for long periods of time, stand, walk, and may occasionally lift and move at least 25 pounds. Ability to travel by car, air or other means of transportation, if required. Epsilon Systems Solutions, Inc. is an equal opportunity employer. Qualified candidates will be considered without regard to legally protected characteristics. Equal employment opportunity, including veterans and individuals with disabilities.

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