# David L. > Senior Software Engineer at Atlassian Location: Berkeley, California, United States Profile: https://flows.cv/davidl1 ## Work Experience ### Senior Software Engineer @ Atlassian Jan 2022 – Present ### Lead Software Engineer @ Alpha Gems Jan 2021 – Jan 2023 • Wrote EVM compatible ERC-721 contract implementation in Solidity, adding security using reentrancy guards, provenance hash, and Chainlink Verifiable Random Function for fair launch and metadata reveal • Designed and integrated frontend UI/UX for ERC-721 minting using Ethers (Blockchain library), Javascript, React, and Chakra • Created automated data aggregation solutions and multi-server communications using Discord API Integrations in Node JS • Aggregated OpenSea (NFT Trading Platform ) information for market and price data analysis using Beautiful Soup in Python ### Software Engineer @ DoorDash Jan 2019 – Jan 2022 • Led end-to-end backend development and coordinated cross-team communications for Dasher app equipment tracking feature in order to improve analytics, merchant quality promise, and lower equipment costs • Developed custom integrations with external merchant provider APIs for DoorDash Point-of-Sale microservice ◦ Added time-bound item logic (reduced order cancellation rates by 60%), developed loyalty/coupon features for top merchants, and onboarded major national brand stores onto tax service platform (2000+ stores) • Integrated DoorDash Cash on Delivery feature, increasing 30% of order volume for select merchants and enabling DoorDash’s international expansion into Germany and Japan • Enabled data storage and created internal tools for operations teams to view order failures and menu creation/update failures to help support teams directly root cause issues, reducing oncall engineer menu and order investigation tickets by 50% • Enabled more granularity for pay models based on distance and tip amounts, improving efficiency for dashers and merchants ### edX Writer @ Blockchain at Berkeley Jan 2018 – Jan 2019 • Wrote content for Blockchain at Berkeley edX course, Fundamentals of Bitcoin and Cryptocurrencies ### Developer @ Blockchain at Berkeley Jan 2017 – Jan 2019 • Created decentralized Ethereum-based online ether casino game web app, with backend in Solidity • Developed smart contract with trustless asset transfer and client randomness to reduce game bias and ensure fairness ### Software Engineer Intern @ Google Jan 2018 – Jan 2018 • Developed Android app for the Internet of Things Proxemics API for tracking faces and displaying real-time distance updates • Integrated OpenCV library into Android/Python application for distance detection based on images and face tracking • Conducted data analysis on raw proximity sensor and distance data for prediction and sensor calibration ### Software Developer @ NeuroDetect Jan 2017 – Jan 2017 • Implemented mobile brain function diagnostic tools for brain performance assessment using electroencephalography • Developed Android application for administering diagnostic tests in concussion patients to capture cognitive function data • Created Future SimRacer and SimPilot demos for analyzing brain activity for high stimulation professions ### Research Intern @ Sonoma State University Jan 2016 – Jan 2016 • Created Android wireless Bluetooth controller for Lynxmotion Robotic Arm in Engineering Department with Dr. F. Farahmand • Configured and rewired robot arm with Bluetooth module for precise arm movements for each individual servo motor ### Research Intern @ Sonoma State University Jan 2016 – Jan 2016 • Created a classification algorithm for images of Abalone and Nucella larvae in Computer Science Department with Dr. G. Gill. • Tested different feature detectors, extractors, and image filtering techniques from OpenCV library to maximize accuracy • Achieved an accuracy of 96% for hundreds of larvae images currently being studied in Biology Department using SVM ### Research Intern @ Sonoma State University Jan 2014 – Jan 2014 • Researched applications of electroencephalography in Computer Science Department with Dr. B. Ravikumar • Created P300-Matrix Speller hands-free text editor program through use of Emotiv EPOC headset in MATLAB • Predicted auditory stimuli based on EEG data by extracting key features from data and applying a machine learning algorithm ## Education ### Bachelor's degree in Computer Science University of California, Berkeley Jan 2015 – Jan 2019 ## Contact & Social - LinkedIn: https://linkedin.com/in/david-l-7b8897142 --- Source: https://flows.cv/davidl1 JSON Resume: https://flows.cv/davidl1/resume.json Last updated: 2026-03-22