Senior Embedded Firmware Test Engineer - Pytest & Modbus Protocols

Job Description

About the Role : We are seeking a highly skilled and experienced Senior Embedded Firmware Test Engineer to join our innovative team, focusing on the quality assurance of our next-generation Industrial Embedded Devices, Gateways, and Edge Controllers. In this role, you will play a critical part in ensuring the robustness, reliability, and performance of our firmware, with a strong emphasis on industrial communication protocols and hardware-in-the-loop testing. You will leverage your expertise in firmware validation, automation, and industrial protocols to deliver high-quality products. Key Responsibilities: Firmware Test Strategy & Execution: - Design, develop, and execute comprehensive test plans, test cases, and test strategies for embedded device firmware, gateways, and edge controllers. - Perform rigorous black-box and white-box testing of firmware to identify defects, validate functionality, and ensure adherence to specifications. - Collaborate closely with firmware development teams to understand requirements, provide early feedback, and ensure testability of features. Industrial Protocol Testing: - Lead the testing and validation of industrial communication protocols, with a strong preference for Modbus (TCP/RTU). - Experience in testing other industrial protocols like BACnet and OPC-UA is highly valued. - Develop and execute test scenarios to ensure robust and compliant communication between devices and systems. Hardware-in-the-Loop (HIL) Testing: - Extensive experience in setting up and executing Hardware-in-the-Loop (HIL) testing environments for embedded devices. - Utilize and integrate various hardware components and test tools to simulate real-world conditions and validate device behavior. Connectivity Protocol Validation: - Thorough testing of various connectivity protocols including Ethernet, RS485, RS232, and CAN bus, ensuring reliable data transfer and device integration. Test Automation & Scripting: - Hands-on experience with Python scripting for developing automated test cases, utilities, and test frameworks. - Strong understanding of Object-Oriented Programming (OOPs) concepts in Python for building scalable and maintainable automation solutions. - Hands-on experience in designing and developing test automation frameworks using Robot Framework, Pytest, or similar (e.g., Pybot). - Develop and maintain automated test scripts for continuous integration and regression testing. Test Documentation & Management: - Create detailed test plans, test cases, and test reports. - Utilize and maintain test artifacts within version control systems like GIT. - Report and track defects using bug tracking tools such as JIRA or similar. Tooling & Simulators: - Proficient in using in-house developed tools and simulators for effective firmware testing and debugging. - Identify opportunities for new tool development or enhancements to improve testing efficiency. Collaboration & Communication: - Work effectively within a cross-functional team including hardware, firmware, and software engineers. - Possess strong communication skills to articulate technical issues, test results, and recommendations clearly and concisely. Required Skills & Qualifications: Experience: Strong experience (typically 5+ years) in Firmware testing for Industrial Embedded Devices, Gateways, and Edge Controllers. Industrial Protocols (Mandatory): - Proven experience in Protocol Testing, especially with Modbus TCP/RTU. - Knowledge of BACnet and OPC-UA is a significant plus. Connectivity Protocols: - Hands-on experience with testing Ethernet, RS485, RS232, and CAN connectivity. Hardware-in-the-Loop (HIL): - Direct experience with HIL testing setups and methodologies. Programming & Automation: - Proficiency in Python scripting language, including Object-Oriented Programming (OOPs) concepts. - Hands-on experience with Test Automation Framework design and development (Robot Framework, Pytest, or similar). Test Management: - Experience in Test Case writing and Test Plan creation. - Working knowledge of GIT or other software configuration management tools. - Familiarity with JIRA or similar bug tracking tools. Problem-Solving: - Strong analytical and problem-solving skills to troubleshoot complex firmware and hardware interactions. Communication: - Excellent written and verbal communication skills. Education: - Bachelor's or Master's degree in Electrical Engineering, Electronics Engineering, Computer Science, or a related field.