FULL_TIME

Senior Model-Based Systems Engineer

1/7/2026

The Senior Model-Based Systems Engineer will lead systems engineering duties to elicit stakeholder requirements and perform functional analysis using MBSE techniques. They will also facilitate M&S transformation initiatives and represent Enterprise Engineering in agency teams.

Salary

150000 - 178000 USD

Working Hours

40 hours/week

Company Size

1,001-5,000 employees

Language

English

Visa Sponsorship

About The Company

Modern Technology Solutions, Inc. (MTSI) is a 100% employee-owned engineering services and technology solutions company delivering first-choice capabilities to solve problems of global importance in the critical mission areas of missile defense, cyber security, intelligence, unmanned/autonomous systems, aviation, space, and homeland security. The MTSI mission is to make important and lasting contributions to the nation's defense and security by providing leadership and best- value solutions to solve America's most technically challenging strategic problems. Founded in 1993, MTSI today has employees at over 20 offices and field sites worldwide. For more information about MTSI, please visit www.mtsi-va.com. For current MTSI job openings, please visit www.mtsi-va.com/careers.

About the Role

MTSI is searching for a talented Senior Model-Based Systems Engineer to join our team! In this role you will provide senior technical and advisory assistance to the Director of Modeling and Simulation (M&S) Enterprise Engineering, who is responsible for chairing design reviews, establishing architecture and design standards, managing Enterprise Integrated Product Teams (IPTs), and synchronizing M&S across the Missile Defense Agency (MDA).

Responsibilities:

Performs and leads systems engineering duties to elicit stakeholder requirements and mission needs
Defines requirements, performs functional analysis using Model-based Systems Engineering techniques and tools
Drafts and reviews technical documents and supports technical reviews
Facilitates M&S and digital engineering transformation initiatives, and represent Enterprise Engineering in agency tiger teams and working groups

Required Qualifications:

Master's degree in STEM field and 12+ years of related professional experience
Active Secret clearance
Experience leading MBSE activities and projects for complex systems, preferably DoD Weapon Systems
Extensive experience with Model-Based Systems Engineering (MBSE) and Systems Modeling Language (SysML)
Experience with languages used for architecture modeling (i.e. DoD Architecture Framework and (Unified Architecture Framework (UAF))
Mastery of MBSE tools, such as IBM Rhapsody and Cameo, and integrated requirements tools, such as DOORs NG
Ability to effectively communicate complex ideas to non-technical and non-MBSE trained people
Experience following MBSE processes, such as IBM Harmony

Desired Qualifications:

Doctorate in applicable field is a plus
MBSE certifications and training (i.e. OMG, INCOSE, etc.)
Ballistic Missile Defense System (MDS) domain experience working in the Missile Defense Agency (MDA)
Experience with definition, design, development, verification and validation, and analysis of MDS M&S (ground test and constructive or distributed virtual simulation of the MDS and its elements and components)
Experience with analysis, test, and systems engineering of M&S for one or more elements of the MDS (i.e. Patriot, THAAD, GMD, Sensors, or C2)
Exposure to MDA test events and activities supported by M&S products and services
Ability to work with a diverse team of engineers (geographically diverse) of different perspectives, skill sets and backgrounds
Energetic, motivated, self-starting

The pay range for this position is $150,0000/annually to $178,000/annually; however, base pay offered may vary depending on established government contract ranges, job-related knowledge, skills, and experience, and other factors. MTSI also offers a full range of medical, financial, and other benefits, dependent on the position offered. Base pay information is based on market location. Applicants should apply via MTSI's internal or external careers site.

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Key Skills

Model-Based Systems EngineeringSystems Modeling LanguageIBM RhapsodyCameoDOORs NGIBM HarmonyFunctional AnalysisTechnical DocumentationStakeholder RequirementsDigital EngineeringArchitecture ModelingMDABallistic Missile DefenseVerification and ValidationTeam CollaborationCommunication