Firmware Engineer

• Sep 2021 - Present

Embedded Systems Engineer

• Oct 2020 - Sep 2021

• Worked as a firmware engineer developing embedded software and hardware for the company's novel IoT energy monitoring device.• Rapidly understood and modified legacy code and vendor-specific APIs and HALs to suit project requirements.• Wrote a custom bootloader for the cortex M4 to enable secure OTA updates via a secondary wireless chip.• Developed RTOS code for STM and Espressif microcontrollers, enabling features like Modbus RTU over RS485, cellular PPP, OTA updates, and AWS MQTT over SSL/TLS encryption.• Designed custom PCBs consisting of power management circuits, RF, micro-USB, Ethernet, and Flash support.• Employed key software engineering methodologies like version control and Clean code to produce maintainable, modular, and readable code within a real-time embedded environment.

Program Facilitator

• Aug 2020 - Oct 2020

• Served as a program facilitator, coaching and educating over 15 kids (ages 10-15) on the fundamentals of computer science, coding and machine learning. • Served as a program facilitator, coaching and educating over 15 kids (ages 10-15) on the fundamentals of computer science, coding and machine learning.

Embedded Systems Engineer

• Feb 2018 - Jun 2019

• Worked with the firmware team to design and implement the firmware for the InventOne Dev. board (built on the ESP8266 core).• Worked on several communication protocols - Bluetooth, WiFi, Serial/UART, SPI, I2C, ESP-Now, while developing projects with temperature, motion and ultrasonic sensors and various actuators.• Developed device drivers for external peripherals such as ADCs, motion sensors and electric motors.• Built obstacle-avoiding vehicles and IoT projects for team demonstration purposes.• Facilitated training for university students on how to develop robotics and IoT projects using the InventOne Dev. board, increasing public awareness by approximately 40%.

Power Electronics Engineer

• Oct 2018 - Mar 2019

• Designed and built 75% efficient switched mode power supply (SMPS) circuits for smart energy metering devices.• Designed complex circuits and printed circuit board layouts consisting of power electronic devices, switching ICs, inductive components and hundreds of passives within limited board footprint, using Eagle CAD.• Responsible for developing technical specifications for power conversion devices, testing and validating real world performance, reducing project deployment time by about 70%.• Used oscilloscopes and DMMs for in-circuit debugging to investigate and mitigate the negative impacts of electromagnetic transients (EMT) arising from high-frequency ferrite-core transformers.• Created custom libraries for unavailable circuit components from scratch using device data sheets.