Helena Ji Email and Phone Number

Develop firmware for Schneider Electric Circuit Breaker , Switch&Control Industrial products. Develop the FW on embedded OS platform, including VxWorks, in C and C++. Design, integrate and implement the industrial field bus protocols to SE switch&control products, including EthernetIP, ProfiNet, EtherCat and ProfiBus etc. Attend to develop the product with CanOpen protocol.

Develop blackberry smart phone. Work as in-market devices development, debugging and problem investigation. Worked on different device drivers and different modules. Mainly worked on multimedia subsystems, NFC, and low level device drivers. Attend to develop and fix bus on the BB10 phone with QNX OS.

One of the members to develop new 3G back haul microwave SONET system. Designed and completed embedded software to transfer traffic in SONET system. Design and write embedded software in C/C++ on Linux and VxWorks OS for PPC, coldfire and MIPS etc. Be familiar with Linux kernel, driver and networking technology (IP, IP routing, L2Switch etc).

Attended to develop image grabbing and processing product. Designed and completed embedded software on Xscale I/O processor (ARM core). Attended to write window device driver for the product.Designed and completed application software in Visual C++ (.NET) for customer based on the user requirements that would be integrated in user product to handle video images.

Designed DSP algorithm and wrote DSP program (assembly language) for cross-connect card, VT-cross-connect card and Sync card in SONET(SDH) products. One of the DSP switching protection algorithm. Completed test programs (C language) in VxWork embedded system. Automatically test cross-connect function, test FPGA functions. It saved the company much more time to find the chip problem and hardware problem.Wrote softDebug program in LabView in order to implement various functions. It can supply the… Show more Designed DSP algorithm and wrote DSP program (assembly language) for cross-connect card, VT-cross-connect card and Sync card in SONET(SDH) products. One of the DSP switching protection algorithm. Completed test programs (C language) in VxWork embedded system. Automatically test cross-connect function, test FPGA functions. It saved the company much more time to find the chip problem and hardware problem.Wrote softDebug program in LabView in order to implement various functions. It can supply the real-time debug tool that transfers all expected information between the target board and PC. Show less