[Skip to main content](#main-content) [OpenNash Jobs](https://jobs.opennash.com/) [Hiring report](/reports/hiring/) · [All Infineon Technologies jobs](https://jobs.opennash.com/companies/infineon-technologies/) · [Search jobs](/search/) Infineon Technologies · Xi'An, Shaanxi, CN # Principal Engineer Firmware PSU_5113 Xi'An, Shaanxi, CN Full-time Senior individual contributor Software Engineering Listed on Infineon Technologies’s official careers site. Posted July 9, 2026. Check that it is still open and apply there. [Apply on Infineon Technologies’s careers site →](https://jobs.infineon.com/careers/job/563808971532673) [OpenNash Jobs](https://jobs.opennash.com/) / [Infineon Technologies](https://jobs.opennash.com/companies/infineon-technologies/) / Principal Engineer Firmware PSU_5113 ## Job description AC/DC & System Supervision – AI Power Delivery Your Role Key responsibilities in your new role - Develop supervisor firmware and a communications gateway for PSU/BBU/CDU/PBU with timestamped multi-rail telemetry, alarm policies, and diagnostics for AI racks. - Implement redundancy awareness (N+1), FRU/EEPROM management, and root-cause tagging across rack-level events. - Design A/B firmware update strategy with rollback and safe-mode enabling zero-downtime operation. - Support production test hooks, calibration scripts, compliance telemetry recording, and field debug. - Use PSoC™ Control, XMC™ \+ DAVE™, ModusToolbox™, RTOS, OPTIGA™ secure identity/signed updates, and interfaces such as CAN/UART/RS-485/Modbus. Your Profile Qualifications and skills to help you succeed - BSEE/MSEE in Electrical Engineering, Computer Engineering, or related field with 6-8 years of experience. - Strong embedded firmware and system supervision experience for power supplies (AC/DC front-end, ORV3/MCRPS). - Hands-on with comms stacks (CAN/UART/RS-485/Modbus) and telemetry/diagnostics architectures. - Understanding of redundancy behavior, firmware update robustness, and production test enablement. - Open-minded, communicative; able to work under pressure and independently. ### Contact sunny.wang@infineon.cn #WeAreIn for driving decarbonization and digitalization. As a global leader in semiconductor solutions in power systems and IoT, Infineon enables game-changing solutions for green and efficient energy, clean and safe mobility, as well as smart and secure IoT. Together, we drive innovation and customer success, while caring for our people and empowering them to reach ambitious goals. Be a part of making life easier, safer and greener. Are you in? We are on a journey to create the best Infineon for everyone. This means we embrace diversity and inclusion and welcome everyone for who they are. At Infineon, we offer a working environment characterized by trust, openness, respect and tolerance and are committed to give all applicants and employees equal opportunities. We base our recruiting decisions on the applicant´s experience and skills. Learn more about our various contact channels. We look forward to receiving your resume, even if you do not entirely meet all the requirements of the job posting. Please let your recruiter know if they need to pay special attention to something in order to enable your participation in the interview process. Click here for more information about Diversity & Inclusion at Infineon. ## At a glance - Posted by the employer: Jul 9, 2026 - First seen by OpenNash: Oct 13, 2026 - Last checked: Oct 20, 2026 - Listed for: 103 days - Location: Xi'An, Shaanxi, CN - Employment type: Full-time[Apply on Infineon Technologies’s careers site →](https://jobs.infineon.com/careers/job/563808971532673) ## More jobs at Infineon Technologies ### [Hardware System Verification Intern](https://jobs.opennash.com/companies/infineon-technologies/jobs/3bc769555b112aa5894b/) Xi'An, Shaanxi, CN ### [Intern](https://jobs.opennash.com/companies/infineon-technologies/jobs/d7b24f85e33f83cbb0ab/) Xi'An, Shaanxi, CN ### [Principal Engineer PSU System Application](https://jobs.opennash.com/companies/infineon-technologies/jobs/81f265b21370bd9b79d9/) Xi'An, Shaanxi, CN ### [Principal Engineer System Application Engineering](https://jobs.opennash.com/companies/infineon-technologies/jobs/fbd15513cc2d4d407705/) Xi'An, Shaanxi, CN ### [Bluetooth Firmware Engineer](https://jobs.opennash.com/companies/infineon-technologies/jobs/a693e05272ba4203f291/) Bengaluru, KA, IN ## Similar jobs at other companies ### [Principal Engineer, Firmware Verification Engineering](https://jobs.opennash.com/companies/sandisk/jobs/6e34b15789e0b69b44f1/) Sandisk ### [Principal Firmware Engineer](https://jobs.opennash.com/companies/microsoft/jobs/6a1911e7f432b1b9e650/) Microsoft · Taiwan, New Taipei City ### [Senior Staff Firmware Engineer, Firmware Engineering](https://jobs.opennash.com/companies/sandisk/jobs/87c7578491bc6b5b905f/) Sandisk ### [Firmware Engineer lll](https://jobs.opennash.com/companies/totalenergies/jobs/3a86d5e7b50407cc63fe/) TotalEnergies ### [Camera Firmware Engineer](https://jobs.opennash.com/companies/qualcomm/jobs/9424f2cdbb0655457275/) Qualcomm · Hyderabad, Telangāna, India OpenNash lists jobs from employers’ own careers sites and does not handle applications. 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