Alcon Research LLC - Surgical Instrumentation R & D

I am a part of firmware team working on next generation of 3D digital microscope for ophthalmology. My primary work includes developing control algorithms for precision control of stepper motors. I then implement and test them out on a RISC-V core designed on a Polarfire FPGA. I have also implemented SPI and GPIO peripherals along with interrupt handler module for the microprocessor using Libero Design Studio and VHDL. I was awarded 'Excellence Award' in 2022 for my work in developing the novel control algorithm and scheduling it on RISC-V processor.

We showcased our product developments at American Society of Retina Specialists (ASRS) and American Academy of Ophthalmology (AAO) to get feedback from actual surgeons who would be using the product. The feedback received from them was crucial to fine tune the algorithm and make it more robust.

As we are a medical device team, we adhere to strong coding rules and conventions. We have automated regression testing for our firmware builds using Jenkins. I have contributed in developing few of the motor testing scripts in python.

I frequently collaborate with the hardware team to characterize various PCBA designs using logic analyzers and thermal images. Occasionally we collaborate with the tech transfer team to understand the manufacturing requirements and constraints to align our development from an early stage. We also collaborate with few 3rd party vendors and service providers and work effectively to achieve our goal faster.

Emerson Electric - Exports Engineering Centre

• Implemented distributed control algorithms on PLC for automation of pharmaceutical factory

• Participated in Factory Acceptance Test against IEC61131 with cross functional teams in South Korea

Tech Mahindra - Makers Lab

• Implemented tri-lateration for indoor localization with 3 cm accuracy anchored to Wi-Fi beacons

• Refactored sonar subroutines to use software interrupts on ARM processor to improve sampling rate