# Jie Guan

> Hardware Engineer at Oura

Location: San Jose, California, United States
Profile: https://flows.cv/jieguan

## Work Experience
### Principal Engineer, Battery Engineering @ ŌURA
Jan 2025 – Present | California, United States
Powering the long-lasting circle of wellness

### Cell Engineering Lead @ Stealth Startup
Jan 2025 – Jan 2025 | San Jose, California, United States
Developing a proprietary battery architecture

### Hardware Engineer @ Apple
Jan 2021 – Jan 2025 | San Jose, California, United States

### Sr. Manager, Energy Storage Solutions @ Applied Materials
Jan 2020 – Jan 2021
Technology development for energy storage solutions

### Cell Technology Lead @ Juul Labs
Jan 2019 – Jan 2020
Battery cell design and qualification for Juul Device.  Battery specification and validation for PMTA submission.

### Product Design--Battery Engineering @ Apple
Jan 2017 – Jan 2019 | San Francisco Bay Area
Battery design engineer at Special Project Group

### Technical Program Manager --Battery Cells @ Apple
Jan 2014 – Jan 2017 | San Francisco Bay Area
NPI and quality lead for battery cells (Apple Watch, iPad and iPhones)

### Director, Materials R&D @ A123 Systems
Jan 2013 – Jan 2014
Led A123's materials R&D for high power and high energy cells

### Director, Powder Engineering @ A123 Systems
Jan 2011 – Jan 2013
Global manufacturing engineering leader for A123's Nanophosphate® materials

### Manager @ GE Global Research
Jan 2007 – Jan 2011
Led a R&D lab working on solar cells, detector materials, high temperature materials chemistry, and functional coatings.

Coal/biomass gasification, biofuel conversion and syngas processing

### Technical Leader @ GE Energy
Jan 2002 – Jan 2007
Technical Leader directing solid oxide fuel cell materials and module development teams

### Staff Engineer @ Honeywell
Jan 1998 – Jan 2002
Led the design, construction, and demonstration of portable solid oxide fuel cell system, pressurized fuel cells, and ceramic oxygen generators

### Lab Graduate @ Argonne National Laboratory
Jan 1996 – Jan 1998
Developed composite ceramic membranes for gas separation

### Graduate Assistant @ Georgia Institute of Technology
Jan 1994 – Jan 1996
Developed electrode and electrolyte materials for lithium-ion batteries

### Sales Engineer @ Samsung China Headquarters
Jan 1992 – Jan 1994
Chemical and steel products import/export,  technology assessment, transfer and services


## Education
### Ph.D in Materials Science and Engineering
Georgia Institute of Technology

### M.E. in Ceramic Engineering
Tsinghua University

### B.S. in Ceramic Engineering
Tsinghua University


## Contact & Social
- LinkedIn: https://linkedin.com/in/jieguan

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Source: https://flows.cv/jieguan
JSON Resume: https://flows.cv/jieguan/resume.json
Last updated: 2026-04-13