Sr. Software Engineer
Thermo Fisher Scientific4 days ago
Chengdu, ChinaSenior
Responsibilities
- Translate instrument and subsystem requirements into firmware architectures, detailed designs, interfaces, and testable acceptance criteria.
- Develop embedded C and C++ firmware for microcontrollers and embedded processors using bare-metal or real-time operating system architectures.
- Implement device drivers and interfaces for sensors, detectors, ADCs, DACs, actuators, motors, and instrument communication links.
- Develop timing, data acquisition, calibration, state-machine, initialization, and control sequences for instrument subsystems.
- Bring up new PCBAs and diagnose hardware/firmware interactions using debuggers, oscilloscopes, and logic analyzers.
- Implement diagnostics, watchdog handling, parameter checks, and defined fault responses.
- Develop unit, integration, regression, and hardware-in-the-loop tests; document results and resolve defects.
- Maintain controlled source code, code reviews, build configurations, automated checks, and reproducible versioned firmware releases.
- Support production programming, firmware updates, service diagnostics, and root-cause investigations for manufacturing and field issues.
- Document firmware behavior and interfaces, collaborate with global teams, and contribute to technical reviews and peer development.
Requirements
- Bachelor's degree in Computer Engineering, Electrical Engineering, Computer Science, Software Engineering, or a closely related technical discipline plus at least five years of commercial embedded software or firmware development, or an advanced degree plus at least three years.
- Strong proficiency in embedded C and C++, including memory management, interrupts, timers, concurrency, and resource-constrained implementation.
- Hands-on firmware development with microcontrollers or embedded processors using bare-metal or real-time operating system development.
- Experience with instrument control, data acquisition, or comparable electromechanical products and physical hardware integration.
- Knowledge of several interfaces such as SPI, I2C, UART, CAN, USB, or Ethernet, along with the ability to read schematics and component datasheets.
- Experience with board bring-up and firmware debugging using hardware debuggers and laboratory measurement equipment.
- Experience with Git, code review, automated testing, and continuous integration.
- Strong analytical problem-solving, independent technical ownership, written and spoken English, and ability to collaborate globally.
- Ability to travel for collaboration with global engineering and manufacturing teams.
- Preferred experience includes life science or chemical analysis instruments, spectroscopy, optical measurement, X-ray equipment, laboratory automation, precision acquisition, signal processing, motor control, calibration, or deterministic measurement-sequence control.
- Preferred qualifications include Python or similar scripting for test automation, hardware-in-the-loop systems, automated regression testing, embedded Linux, bootloaders, robust firmware update and recovery mechanisms, and firmware security practices.
- Familiarity with AI-assisted tools for engineering analysis, documentation, or coding is a plus.
Benefits
- Standard Monday-Friday work schedule in an office environment.
- Travel may be required for collaboration with global engineering and manufacturing teams.
About Thermo Fisher Scientific
Thermo Fisher Scientific builds analytical instruments, lab equipment and consumables, specialty diagnostics, and provides pharma services (CDMO and clinical research) for biotech, pharma, academic, and healthcare customers. It earns revenue through product sales, e-commerce distribution (Fisher Scientific), and contract services under brands such as Thermo Scientific, Applied Biosystems, Invitrogen, Patheon, and PPD. Headquartered in Waltham, MA, it is publicly traded on the NYSE (TMO) and was created by the 2006 merger of Thermo Electron and Fisher Scientific.