Senior Software Test Engineer, Vehicle Diagnostics

General Motors; Warren (MI); Hybrid; USD 110,000 - 140,000; Full time

Benefits offered by this job

Hybrid on-site work

Job summary

General Motors in Warren, MI seeks a Senior Software Test Engineer to validate diagnostic programming and vehicle communication workflows. You will design test plans, execute validation across bench and vehicle environments, and drive root-cause analysis for complex failures in DPS, SPS/SPS2, and VWP scenarios.

You will work in a hybrid setup, collaborating with software and validation teams to improve test coverage, automation strategies, and release readiness for Service First Quality

Qualifications

• Bachelor's degree in Electrical Engineering, Software Systems, Computer Science, Computer Engineering, or related field.
• 5+ years of professional experience in software validation, software test engineering, or system-level software integration testing.
• Hands-on experience testing and validating software applications, preferably in automotive diagnostics, embedded systems, service programming, or vehicle communications domains.
• Solid understanding of software testing methodologies, defect management, root-cause analysis, and validation best practices.
• Knowledge of vehicle serial data and communication protocols, including CAN (ISO 15765), UDS (ISO 14229), DoIP (ISO 13400), GMLAN and SAE J1850.

Responsibilities

• Lead validation efforts for diagnostic programming and vehicle communication workflows, including DPS, SPS/SPS2, VWP, and related service-tool scenarios.
• Develop and execute test plans, test cases, and test procedures to validate software functionality, communication robustness, and programming performance across vehicle, bench, and lab environments.
• Investigate complex failures involving vehicle communication protocols, ECU programming behavior, gateway routing, and tool-to-vehicle interactions; drive issues through root-cause isolation, defect documentation, and corrective-action validation.
• Validate new software releases and fixes for vehicle programming and diagnostics features, including regression, stress, and performance-oriented test scenarios.
• Collect, analyze, and interpret logs, traces, and data captured from tools such as Wireshark, CAN loggers, and Lauterbach debuggers and trace tools to support root-cause analysis.
• Support flatbuild, bench, and hardware-in-the-loop style validation activities where flashing, power cycling, UART/SSH access, or bench-specific setup is required to reproduce and isolate issues.
• Partner with software engineers, subsystem engineers, product engineering, service engineering, and validation stakeholders to clarify requirements, reproduce issues, and assess release readiness.
• Analyze test results and provide recommendations for software improvements, defect fixes, containment actions, and automation opportunities.
• Create and maintain high-quality validation documentation, including test plans, test reports, defect records, scenario coverage, and lessons learned.
• Contribute to continuous improvement of software validation processes, bench strategies, and automated test coverage for diagnostic and programming systems.

Skills

Python

C/C++

Java

Automation testing

Root-cause analysis

Education

Bachelor's degree

Tools

Wireshark

CAN loggers

Lauterbach debuggers

UART/SSH tools

Job description

General Motors in Warren, MI seeks a Senior Software Test Engineer to validate diagnostic programming and vehicle communication workflows. You will design test plans, execute validation across bench and vehicle environments, and drive root-cause analysis for complex failures in DPS, SPS/SPS2, and VWP scenarios.

You will work in a hybrid setup, collaborating with software and validation teams to improve test coverage, automation strategies, and release readiness for Service First Quality