"DATA CENTER ROBOTICS" TEAMDesigned and built solutions, while leading the team and directing software development projects.• Increased rack throughput ability during suite provisioning by 4 times, from providing an autonomous rack moving “tug” robot - personal contributions entail development of remote monitoring with multiple simultaneous, low-latency video streams (WebRTC, JavaScript)• Worked on strengthening chain of custody of media in data centers and POP sites during drive destruction process, significantly reducing human touchpoints, by developing automation systems (React, JavaScript)• Reduced robotic asset tracking (see below) cost down to ¼ of original plan, by sharing and transferring 1 robot among 4 suites (instead of 1 per suite) - personal contributions entail software architecture and input into the project• Prepared successor robot to have advanced inspection abilities by implementing telepresence with multiple cameras, pan-tilt-zoom control, and real-time manual navigation controls (JavaScript)• Provided detailed software architecture for multiple projects• Prepared, tracked, & unblocked work of software engineering team for ~10 projects / deliverables• Manager for up to 7 full-time employees (4 directly, and 3 as “dotted-line” reporting) at one time• Helped nearly 3 engineers promote via goal setting and mentoring (1 left just before promotion)

"DATA CENTER ROBOTICS" TEAMSignificant contributor in developing a mobile robot platform (front-end / full-stack). Manager for 3 interns.• Increased rack asset audit capability by 39 times, and audit frequency by 12 times, from developing and providing a mobile robot platform - some personal contributions include: • UI (React / JavaScript, PHP) - implementing robot visualization on map, planning and navigation controls, WebRTC-based video calling • Back-end (Python, PHP) - software to generate robot maps and waypoints for any data center or POP site facility from internal database / floorplans (automatically and with high accuracy), algorithm to correlate robot location with respective data center assets • ROS (Python, C++) - data communication and logging to the back-end, 8+ telemetry sensors, IMU and LIDAR integration, autonomous navigation, autonomous docking• Enabled other teams to leverage our robots, by creating an internal “Robotics API” (Javascipt, PHP)• Increased production reliability by developing production validation tools (JavaScript, Python)• Led technical effort to deploy Facebook’s first robot in their data centers (also in POP sites)• Initiated asset tracking exploration and development through RFID tag experiments• Demonstrated ability to move camera on a robot arm using Inverse Kinematics (IK) / MoveIt• Brought talent into the company by performing ~500 interviews & referring 3+ who were hired• Grew team by interviewing and hiring for electrical engineering, firmware, software, and PM• Reduced barrier of entry for new-hires and enabled temporary workers by providing software development documentation and training materials (for the full software stack, including ROS)• Improved software stability and health by establishing software on-call support group, including training material and schedule, and onboarding 10+ people over time

"GROWTH: FRIENDING" TEAM• Saved the company ~$270,000 per year through a caching efficiency improvement• Increased overall friendships made on Facebook’s touchscreen-mobile webpage by 4%, and later by another 6%, from implementing a “People You May Know” banner, and showing the number of pending requests as a “badge” on the “Friend Requests” button (respectively) – all code in PHP and JavaScript• Improved experience on the tablet webpage and increased friendships accepted by 66%, and friendships rejected by ~23 times, plus non-touchscreen mobile web accepted friendships increased by 1.6%, from launching a new friending page on those platforms• Indirectly increased overall friendships accepted on non-touchscreen mobile web by 2%, from mentoring a Bootcamper in replacing a “+1” button with a picture of the person to be “friended”• Improved team’s understanding of “friending” behaviors by improving and adding logging, and analyzing the data• Mentor/Manager for 3 new hires through Bootcamp (a 6-week training & team selection process)

Taught one Computer Science course: Introduction to Python (to evaluate interest in teaching)

Revamped the web browser plug-in UI, and assisted with Quality Assurance (QA)

Artificial Intelligence (AI) research, solving reward POMDPs with conformant probabilistic planning

Enabled autistic children though research driven by programming 3 robots, 1 avatar, and a UI

TA for ~40 students between two courses: “Artificial Intelligence” (AI) and “Computational Theory”

One of three developers for a downloadable Wii game, “Boingz”

Developed and ported games for Brew, Java, and Symbian feature phones