Modbus Protocol Test Engineer - Embedded Testing

Here's the Job Description for the Modbus Protocol Test Engineer - Embedded Testing role at Maimsd Technology:

Maimsd Technology

Job Title: Modbus Protocol Test Engineer - Embedded Testing

Department:

Location:

Job Summary:

Key Responsibilities:

• Validate

  Modbus communication

  between master-slave devices, ensuring accurate data exchange and protocol adherence.
• Perform

  packet-level analysis and log decoding

  to thoroughly investigate communication flows and identify discrepancies.
• Utilize industry-standard and custom tools such as

  Modbus Poll, ModScan, pymodbus, or in-house simulators

  for comprehensive testing.
• Write detailed

  test cases

  , simulate diverse device behaviors, and perform rigorous

  regression tests

  to ensure system stability.
• Interface directly with hardware and firmware teams to address and resolve integration issues.
• Document protocol compliance, identified errors, and maintain detailed traceability logs for all testing activities.

Requirements:

• Experience:

  6 to 12 years of hands-on experience in embedded or protocol testing.

• Modbus Expertise:

  Strong understanding of

  Modbus RTU and Modbus TCP/IP

  .

• Testing Tools & Scripting:

  Experience using protocol analyzers, test benches, or writing custom

  Python test scripts

  for automation.

• Data Integrity:

  In-depth knowledge of Modbus registers, coils, bits, and expertise in

  data integrity validation

  .

• Networking & Industrial Automation:

  Good grasp of

  RS-485, TCP/IP stacks

  , and industrial automation flows.

• Domain Focus:

  Protocol Testing for Industrial Systems.

• Domain Expertise:

  Embedded systems, industrial automation, PLCs, IoT.

Preferred Qualifications:

• Familiarity with

  CAN, BACnet, or other industrial protocols

  .
• Experience testing

  PLC (Programmable Logic Controller), SCADA (Supervisory Control and Data Acquisition), or IoT Gateways

  .
• Basic knowledge of

  Python or C scripting for test automation

  .