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About BJRT


Bay Jay Ray Technology (BJRT) Limited is a startup company in Hong Kong, focusing on developing high-speed, high-precision, and highly compact optical imaging instruments for precision metrology and biomedical applications. As a spin-off of The Chinese University of Hong Kong (CUHK), the core technology of BJRT is based on extensive cutting-edge research development from CUHK. Our products can provide high-speed surface profiling of structures with nanometer sensitivity, which can be implemented for in-line process monitoring during advanced manufacturing to improve the yield. They can also be used for label-free imaging of cells and tissues for basic biomedical research and clinical applications.


Renjie Zhou, Founder of BJRT

"Our mission is to accelerate the manufacturing and the biomedicine industry by providing innovative imaging technologies."

We are looking for:

We are looking for:


Project Manager

Organize a team to develop and deliver products to our customers.

  • Bachelor’s Degree or above in related Engineering/Science field, or management

  • Rich experiences in project management

  • Good English, basic Cantonese


CEO assistant

Help CEO manage company affairs, and coordinate with research lab and related partners.

  • Bachelor’s Degree or above

  • Be able to work in a team

  • Good English, Cantonese and Mandarin communications skills


R&D Engineer

(4 vacancies)

Our company is currently developing an AI-enabled Portable Dynamic Surface Profilometer (PDSP) system. We are looking for young talents who can join our team to develop the PDSP hardware and the associated image processing software.  Candidates with strong training background in optical imaging and image processing background are encouraged to apply. The recruit is expected to communicate effectively with both technical and non-technical staff and management team of all levels. The recruit should be capable of learning and working independently and thriving in a collaborative team environment. He/she is also expected to develop hands-on problem-solving skills and actively interact with the technical team to exchange ideas. We are now looking for image processing engineer, software engineer, electronic engineer, mechanical engineer and optical engineer.

  • Bachelor’s Degree or above in related Engineering/Science field, prefer PhD

  • Strong research background (good papers, projects, etc.)

  • Good English communication skills