MBSE Systems Engineer - Aircraft Simulation (Junior)

Phoenix Defense, LLC.; Fairborn (OH); On-site; USD 55,000 - 75,000; Full time

Job summary

Phoenix Defense, LLC. is seeking a Junior Systems Engineer to assist the engineering team in developing, integrating, and testing aircraft subsystem models within a simulation environment.

You will work under senior engineers to gain foundational systems engineering experience across requirements analysis, model integration, and system architecture support. You will contribute to the full lifecycle from requirements, design, validation, and documentation to test planning and execution, while

Qualifications

• Bachelor’s degree in a related engineering field.
• 0–2 years of relevant engineering experience in systems engineering, software development, modeling & simulation, integration or testing.
• Foundational understanding of systems engineering principles and MBSE concepts.
• Familiarity with LVC simulation environments.
• Reading and understanding technical documentation and system requirements.
• Ability to read architecture diagrams and interface definitions.
• Strong analytical and problem‑solving skills.
• Effective communication with engineers, developers, analysts and DoD customers.
• Active Secret clearance; eligible for Top Secret.

Responsibilities

• Perform systems engineering analysis, design, integration, testing, documentation, and implementation support under guidance.
• Support integration of aircraft subsystem models into the simulation environment and analyze interfaces, data exchanges and system behavior.
• Assist development and documentation of system architectures, designs, functional decompositions, and interfaces.
• Develop and maintain system architecture models using SysML and UML in MBSE tools.
• Support requirements analysis, decomposition, allocation, traceability and verification coverage.
• Participate throughout the system development lifecycle including verification and validation.
• Develop integration and test plans, procedures, test cases and related documentation.
• Assist with test events and analyze results, logs and discrepancies.
• Support troubleshooting and root-cause analysis with cross-functional teams.
• Evaluate interoperability, performance, security, scalability and other quality attributes.
• Contribute to ICDs, architecture products, requirements specs and test documentation.
• Support configuration management and engineering change impact analyses.
• Communicate technical information clearly with engineering staff, management and DoD customers.

Skills

Systems engineering principles

MBSE concepts

Programming concepts (C++, C#, Java, P

Education

Bachelor’s degree in Systems Engineering / related technical discipline

Tools

SysML/UML modeling

MBSE tools

Python programming

Job description

Phoenix Defense, LLC. is seeking a Junior Systems Engineer to assist the engineering team in developing, integrating, and testing aircraft subsystem models within a simulation environment.

You will work under senior engineers to gain foundational systems engineering experience across requirements analysis, model integration, and system architecture support. You will contribute to the full lifecycle from requirements, design, validation, and documentation to test planning and execution, while