Sr. System Engineer
- Compensation
- Not disclosed
- Location
- Sichuan, China
- Work setup
- Not specified
- Seniority
- Senior
- Employment
- Contract
- Experience
- 3+ years
- Category
- Software engineering
- Posted
Skills
Must have
- · Advanced degree plus at least 3 years of relevant experience, or bachelor's degree plus at least 5 years, in electrical/electronic design and product development.
- · Degree in Electrical Engineering, Electronics Engineering or a closely related discipline with substantial circuit design training.
- · Demonstrated hands-on PCBA development from requirements and schematics through PCB layout review, board bring-up, verification and production release.
- · Strong analog, digital and mixed-signal design skills, including signal conditioning, data conversion, embedded processor interfaces and power circuitry.
- · Proficiency in schematic capture and PCB design tools such as Altium, plus circuit simulation and component selection.
- · Practical understanding of grounding, low-noise design, signal/power integrity, EMC and electrical protection, with ability to apply relevant design constraints.
- · Hands-on use of oscilloscopes, multimeters, power supplies, logic analyzers and other equipment for circuit characterization and debugging.
- · Experience with requirements, electrical interfaces, design verification, root-cause analysis and controlled design documentation and change management.
- · Ability to own electrical work packages, support peers and communicate effectively in English with global, cross-functional teams.
- · Ability to travel as needed for suppliers, manufacturing builds and collaboration with global teams.
Nice to have
- · Electronics development for life science and chemical analysis instruments, spectroscopy, optical detection, X-ray equipment or laboratory automation.
- · Experience with precision low-level signals, detector electronics, motor drives, controlled power delivery or high-voltage interfaces relevant to the assignment.
- · Python, MATLAB or LabVIEW for test automation and data analysis; experience with statistical analysis and DOE.
- · Experience with PCBA DFM/DFT, automated production testing, component lifecycle management and product safety or EMC pre-compliance testing.
- · Familiarity with AI-assisted tools for engineering tasks such as analysis, documentation, or coding is a plus.
Full description
Work Schedule
Standard (Mon-Fri)
Environmental Conditions
Office
Job Description
At Thermo Fisher Scientific, our Mission is to enable our customers to make the world healthier, cleaner and safer. Join a multidisciplinary R&D team developing reliable instruments that help customers advance research, improve analytical results and solve practical laboratory and inspection challenges.
Role overview
As Senior Systems Engineer, you will bring a strong electrical engineering background to the development of life science and chemical analysis instruments and related inspection systems. Your primary responsibility will be hands-on electrical subsystem and printed circuit board assembly (PCBA) design, from requirements and circuit architecture through board bring-up, verification and production transfer. You will work with the R&D Manager and firmware, mechanical and applications engineers to ensure the electronics meet system performance and integration requirements.
The development portfolio includes EDXRF instruments, the Varioskan ALF Multimode Microplate Reader, X-ray inspection systems and the Power Blotter Station. Assignments will depend on project needs and relevant expertise.
Key responsibilities
· Translate instrument requirements into electrical specifications, circuit architecture, interface definitions and measurable board-level acceptance criteria.
· Design analog, digital and mixed-signal circuits, including sensor interfaces, signal conditioning, ADCs/DACs, embedded control, power regulation and actuator interfaces.
· Perform component selection, circuit calculations and simulation; develop schematics and controlled engineering BOMs using tools such as Altium.
· Develop or guide PCB layout, including stack-up, component placement, grounding, signal/power integrity, thermal behavior and EMC considerations.
· Bring up prototype PCBAs, measure circuit performance and debug power, signal, timing, noise and communication issues with firmware engineers.
· Develop electrical verification plans, test fixtures and procedures; assess accuracy, noise, stability, timing, power and fault behavior against requirements.
· Integrate PCBAs, power supplies, sensors, detectors, motors and cabling; resolve electrical interfaces with mechanical and firmware teams.
· Address electrical safety, protection, isolation and interlock requirements with system and compliance specialists, as applicable to the product.
· Apply design for manufacture and test; support contract manufacturers with PCBA fabrication/assembly data, test coverage, pilot builds and yield issues.