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System Integration Engineer

Published Date: July 30, 2026
Optimal Inc., Claycomo, MO 64119
Job Description:

The Systems Integration Engineer will be responsible for designing, implementing, and validating vehicle electrical systems. This role involves reviewing device transmittals, developing logical schematics, conducting design reviews, and supporting system-level validation and diagnostics. The engineer will also perform ECU integration tests, including software flashing and functional testing, while providing technical support for prototype and pre-production builds.

Responsibilities:

  • Design and implement vehicle electrical systems.
  • Review and approve device transmittals.
  • Develop vehicle-level logical schematics.
  • Conduct design and compatibility reviews.
  • Define fusing and grounding strategies.
  • Support system-level validation and diagnostics.
  • Provide technical support for prototype and pre-production builds.
  • Perform system-level tests for ECU integration, including flashing ECU software and calibration files.
  • Analyze self-test results and perform functional tests.

Qualifications:

  • Bachelor's degree in Electrical Engineering (Master's preferred).
  • Prior experience in systems engineering.

Skills:

  • Electrical Engineering
  • Systems Engineering
  • Electrical Wiring
  • Root Cause Analysis
  • Ability to design, test, and troubleshoot interconnected systems
  • Interpretation of electrical wiring diagrams and schematics
  • Structured approach to identify and validate potential causes of issues.

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