BMS System Test Engineer – HIL/SIL, CAN & UDS Diagnostics

Global Connect Technologies; Monterrey; On-site; MXN 400,000 - 640,000; Full time

Job summary

Global Connect Technologies is seeking a System Test Engineer with strong BMS testing experience to perform system-level validation, HIL/SIL testing, diagnostics, communication testing, and fault-injection testing.

You will analyze requirements, develop test specs, execute functional tests on BMS features (cell voltage, SoC, SoH, SoP, protection, charging/discharging), validate CAN/CAN FD, and contribute to automation and traceability.

Qualifications

• Bachelor’s degree in Electronics, Electrical, or Computer Engineering.
• Non-engineering backgrounds are not eligible.

Responsibilities

• Analyze BMS system and software requirements and derive verification criteria.
• Develop and maintain system test specifications, test procedures, and test reports.
• Perform functional testing of BMS features, including: Cell voltage monitoring, SoC, SoH, SoP, battery protection, charging and discharging.
• Perform ECU and system-level testing using HIL/SIL environments.
• Validate BMS behavior under normal, boundary, and fault conditions.
• Perform fault-injection testing involving sensor faults, communication failures, and electrical faults.
• Test vehicle communication using CAN/CAN FD.
• Monitor CAN signals and validate CAN messages.
• Perform UDS diagnostic testing, including DTC validation, diagnostic services, and fault recovery.
• Analyze CAN logs, diagnostic traces, and test results to identify root causes.
• Automate BMS test cases where applicable.
• Maintain bi-directional traceability between system requirements and test cases.
• Participate in requirements reviews, test reviews, and issue-resolution discussions.
• Work closely with system, software, hardware, and FuSa teams.
• Support test coverage analysis and release/readiness reporting.

Skills

BMS testing

System test engineering

HIL/SIL testing

CAN/CAN FD

UDS diagnostic testing

Fault injection testing

Test automation

Education

Bachelor's degree in Electronics, Electrical, or Computer Engineering

Tools

HIL tooling

CAN analysis tools

UDS tooling

Job description

Global Connect Technologies is seeking a System Test Engineer with strong BMS testing experience to perform system-level validation, HIL/SIL testing, diagnostics, communication testing, and fault-injection testing.

You will analyze requirements, develop test specs, execute functional tests on BMS features (cell voltage, SoC, SoH, SoP, protection, charging/discharging), validate CAN/CAN FD, and contribute to automation and traceability.