Alexandru Stan

Highlights

• Programming: C, Python
• Codebases / Libraries: Linux kernel, Zephyr, JACK, QT, Twisted, SimpleCV, Numpy
• Operating Systems: authoring OS packages (Arch PKGBUILDs), Ansible, installing Linux on FPGAs, chromebooks, badgers, and home built MIDI guitars
• Embedded: Atmel AVR, TI MSP430, STM32 ARM
• Hardware: electronics (design/fabrication, Eagle/Kicad/OrCad), FPGA RTL Design (Verilog), FPGA DV (verilator/cocotb), system bringup & debugging
• Tools: version control (git, gerrit, github), documentation (doxygen, sphinx), make, pytest
• Strong understanding of computer networks (CCNA)
• Web Development: HTML, CSS, Javascript, PHP, MySQL

Work Experience

• Google (Chrome OS) - Senior Software Engineer

  June 2014 - July 2015, December 2016 - present

  Launched many generations of Chromebooks! Stemming from 4 ARM reference designs:

  • Rockchip rk3288 (veyron), Rockchip rk3399 (gru/kevin/bob + scarlet), Mediatek mt8183 (kukui), Qualcomm sc7180 (cheza/trogdor)

  Linux Kernel Developer: Maintained drivers and device trees, with a keen eye for future maintenance and upstreaming.

  Wrote firmware for cros-ec (Chromebook Embedded Controller):

  • Bringup of new types of microcontrollers: stm32f071, nuvoton npcx
  • Driver development
  • USB Type-C
  • Keyboard matrix scanning
  • IMU sensors: BMI160
  • Battery handling

  Revised sensor data pipeline (lowered jitter from 20ms to under 1ms) from the accelerometer, through the kernel, all the way to high level Android userspace in order to support ARCore on Chrome OS devices.

  Reviewed (schematics) and debugged lots of hardware.

  Invented a new programming languages (pcbdl) in order to make schematics development & maintenance easier.

  Brought up Chameleon v3, an FPGA device to test display output capabities of Chromebooks.

  Conducted coding interviews for incoming employees.

• Verily / Google Life Sciences - Software Engineer

  July 2015 - December 2016

  Brought up and maintained the base operating system (Chrome OS based) for the Verily Study Hub.

  • included coreboot/depthcharge patches, linux device trees and low level userspace dealing with LTE modem initialization and other housekeeping.

  Developed firmware for the Verily Study Watch:

  • Implemented drivers for various pieces of hardware: EDA, ECG, storage abstractions
  • Directed a move toward a preemptive OS. We settled on FreeRTOS.
  • Developed a few UI apps targeted for the high latency e-ink screen.

• Anoven / Harvest Robotics - Research and Development

  January 2012 - May 2014

  Designed the hardware, wrote the firmware and created a GUI interface for a DNA Electrophoresis Device. Had to deal with high voltage, and noise sensitive circuits.

  Designed a cheap series of battery powered devices capable of logging temperature, humidity and CO2 levels for an extended amount of time.

  Developed computer vision systems for harvesting/processing various crops (mushrooms, apples, peppers, tulip bulbs). The systems are capable of extracting various information from each item including position, rotation, color, shape, size.

  Communicated with industrial 6-axis robots through a variety of interfaces: RS232, TCP

Education

• Mohawk College

  Hamilton, Ontario

  January 2011 - April 2014

  Computer Engineering Technology Advanced Diploma

  • CCNA 2, 3, 4

• University of Waterloo

  Waterloo, Ontario

  September 2009 - January 2011

  Computer Science

  • Attended the advanced level CS course: CS145
  • Won the Google AI Challenge in my 1A term

Personal Projects

• MIDI Guitar

  Unlike a normal guitar this instrument doesn't have any strings; it's entirely digital.

  Custom electronics, MCU firmware, 3d printing, running linux, touch gesture processing, jack synthesizers

  Quick Video

• TR2 Delta Robot Software

  Final Year project for school.

  The goal of this project was to develop a hardware and accompanying software platform for controlling robots from a high level programming language such as Python.

• Google AI Challenge

  Community organizer: Helping to answer user's questions, administering the forums

  System Administrator

  Developer: website (PHP), backend (Python)

Ham Radio: W0AMS

More projects can be found in my website or on my github page.

An online version of this resume can be found at
http://hypertriangle.com/~alex/resume/