# Yang Chen > Technical Lead ｜Senior Software Engineer at Walmart Global Tech | Ex - Meta, Tesla & Army veteran Location: San Francisco Bay Area, United States Profile: https://flows.cv/yangchen I am an experienced Software Engineer with deep passion in Programming, Distributed systems, Data pipeline and Data modeling. I created a text clustering algorithm that ranked No.1 on CLP website. http://www.boostshore.com/index_files/textClustering.pdf I co-developed a website that have +2M visits (Rank 7600 in the U.S). https://www.tivo.com/ I work efficiently both independently and within large corporate teams. I am naturally involved in conversations about technology and business topics with others. I also like to help/lead others to solve complex questions and challenges. I am also a combat veteran and proud of what I have done. Please view my previous projects: www.boostshore.com www.github.com/cy19890513 Skills: Programming Languages: Python, ReactJs, Redux, AngularJs, Java, JavaScript, HTML, CSS, IOS, SAP, Android, C/C++, PHP, OOD, Swift, and MYSQL. Frameworks: Generative AI, LLM, TensorFlow, PyTorch, Jenkins, Selenium, RTOS, React, Redux, Flask, Bootstrap, AngularJS, NodeJS, Spring, Spring Boot, Spring AOP, Hibernate, FeatherJs, Wordpress, Crawler, BLE Operating systems: Linux, UNIX, FreeBSD, AWS, Windows, Mac. ## Work Experience ### Technical Lead | Senior Software Engineer @ Walmart Global Tech Jan 2023 – Present Walmart Marketplace is an online platform that allows third-party sellers to list their products on Walmart.com. It's similar to selling on Amazon as a third-party seller. • Led one Frontend and two Backend engineers to develop a sales order display project for local store sellers using React, Java, and Microservices • Implemented an eCommerce AI Agent using Python and LangChain to process chat commands, select the best-fit product on Walmart.com, and place it in the shopping cart. • Conducted technical discovery efforts to optimize the efficient extraction and filtering of data from a 300 TPS message queue, Facilitated collaboration between five complex downstream and upstream systems utilizing system design and cross-functional collaboration • Resolved CI/CD production release challenges for mid-sized projects and the team using Kubernetes, Jenkins, Looper, and Python. • Led a sister team to develop Walmart Seller Center’s left navigation • Created internal Chatgpt website using Machine Learning and openAI's GPT builder ### Software Engineer III @ Walmart Global Tech Jan 2022 – Jan 2023 • Co-led the $80M GMV third-party seller e-commerce subscription vertical function, utilizing React, Redux, Java, Micro Services, Kubernetes, and cloud deployment. • Constructed a scalable backend API capable of handling millions of requests per hour, employing Java, Spring, Kubernetes, cloud technologies, and analytics tools. • Architected, designed subscription program to create a scalable and robust system. • Developed a customer review and web search result summary system using GenAI API, Data Processing, ML, and LLM (Large Language Model). • Maintained the count of P0 production bugs at 0 by implementing unit tests and automation tests using Jest, React Testing Library, and the Playwright framework • Effectively helped and mentored engineers to stay on top of their tasks, and meticulously code-reviewed their pull requests. • Contributed to the organization's hiring efforts by participating in coding and system design interviews. ### Software Engineer - Data @ Facebook Jan 2021 – Jan 2022 Software engineers on product and systems teams use the latest technology to build new features and improve existing components across all of Facebook's apps and services. They also partner closely with product teams to define feature specifications and build the next generation of products from Facebook. • Grew 50% in customer usage of internal signal application by developing web applications, chat bots, and analytic dashboards using Python, Presto, PHP, ReactJS, and Mysql • Built Scalable Backend api that can handle billions requests per day using Ent Schema, GraphQL, Hack • Developed and improved workplace iOS application which used by billions of users using Objective-C, SWIFT, Xcode • Customized images using Python, Matplotlib, Numpy, Bayer pattern, computer vision and Colab • Added action logs, Implemented SQL queries for Nexus project to track user behavior, and signal monetization • Formatted and cleaned data using SQL queries, Crud application, mysql and hive database operations • Saved millions of dollars of power waste by designed and implemented Order By, Redundant CASTs, Memory Bound Jobs on T6 -> T1 pipeline efficiency checkers, and its analysis dashboard using Python, PAX, Spark mem usage, Hive, Daiquery, Scuba, and Unidash during hackathon • Saved company millions of dollars by supporting companywide SEV • Actively answer colleagues’ product/technical questions from dev team, project group and other engineer group ### Sr. Software Engineer in Test and Analysis Intern @ Tesla Jan 2020 – Jan 2020 | San Francisco Bay Area Connectivity team handles the wireless software for all Tesla vehicles. Connectivity is one of the core module on Tesla vehicle, which millions of those have been sold world wide.It provide internet for core features like map, phone call, network API call, download new firmware etc. My work mostly related to implement test automation on WiFi and Bluetooth for M3: • Saved over 1000 hours’ worth of QA time by implementing automated wireless regression test using Python, Linux, and Jenkins • Reduced M3 wireless connectivity complains down close to 0 by detect bugs in code and improve user experience • Doubled Developers efficiency by implementing a parallel test process/framework saving 1000 hours of work per year using CI/CD, Python, Docker, Jenkins, Kubernetes, and Shell Scripts • Supported, code reviewed Bluetooth/Cellular function implementation using C/C++, and git • Worked and Tested on Wireless Connectivity Device physical layers • Analytics – Decreased 30% on bug/failures by designing and maintaining data analytics dashboards • Created Machine Learning Model for Vehicle Applications using Splunk, Splunk Machine Learning, and Logistic Regression • Innovated human detection using WIFI Fast Fourier transform CSI Signal, Trained the Model using KNN, Random Forest, Decision Tree, SVM, CNN, LSTM algorithms • Guided other team members with the automation project by provide knowledge transfer and prepare documentation. ### Sr. Software Engineer in Test Intern @ Tesla Jan 2019 – Jan 2020 | Fremont Tesla is accelerating the world's transition to sustainable energy with electric cars, solar panels and integrated renewable energy solutions for homes and businesses. My role within the internal IT Application Team includes: • Designed, Developed, and Tested Finance Application used by hundreds of banks tracking/processing billions dollar Loans monthly using Angular, TypeScript and .Net • Assigned bugs to various person by getting to the bottom of issues, tracking product owners, testing different branches using CI/CD, reviewing git commit/PR information, and doing splunk analysis • Implemented and executed test strategies on all supported platforms, and languages to help improve overall quality and coverage using white box testing (C#, Angular), splunk, Swagger, REST API, Chrome Debugger, Appium, Android Studio, and XCode ### Sr. Full Stack Developer Intern @ IBM Jan 2019 – Jan 2019 | San Francisco Bay Area Digitization is accelerating the ongoing evolution of business, and clouds - public, private, and hybrid - enable companies to extend their existing infrastructure and integrate across systems. IBM Cloud provides the security, control, and visibility that our clients have come to expect. We are working to provide the right tools and environment to combine all of our client’s data, no matter where it resides, to respond to changing market dynamics. My work includes: • Led an Intern team to develop a Machine Learning project, used voice to send Git commands by hosting scrum meeting, created tasks, report bugs, prioritized tasks, and monitored task progress/status using IBM Watson API, JIRA, Google Cloud • Designed and implemented a flex points calculator start from scratch: Studied business logic, prepared software design, developed software, deployed the application using React JS, ES 6, Carbon Components, IBM Cloud ### Senior Software Engineer Consulting @ PenguinSmart Jan 2018 – Jan 2019 PenguinSmart offers online services that enable effective remote developmental therapy combining EXPERT INSIGHT & ARTIFICIAL INTELLIGENCE. The company expanded the reach and capacity of every therapist by 10X while helping caregivers answer two core questions "Is my child's development on-track?", "If not, what can I do about it right now?" website: http://qierbao.com/.My work in the company include: • Designed, architected, and developed patient and doctor communication and management platform using React, RoR • Implemented features like Questionnaires, website timeout, SSL function, website speed optimization, e-commerce solution using WordPress, Certbot, HTML5, CSS3, Bootstrap, React, Redux, Node, Bootstrap, • Managed software release and deployment process using AWS, Apache, Nginx, SFTP • Managed and Mentored Junior Engineer on day to day maintenance, WordPress development, and React, RoR deployment ### Software Engineer @ TiVo Jan 2016 – Jan 2018 | San Francisco Bay Area TiVo is a digital video recorder. TiVo provides an on-screen guide of scheduled broadcast programming television programs, whose features include "Season Pass" schedules which record every new episode of a series, and "WishList" searches which allow the user to find and record shows that match their interests by title, actor, director, category, or keyword. My work includes: ● Worked on cutting edge programming language and compiler development for next generation TiVo Box UI using Haxe and Java. ● Developed and Maintained UX web project using React, Redux ● Designed and Built the Quantum Data980 Automation testing system and developed testing cases using Linux, Telnet, Python, FTP and Shell prompt ● work as contractor through Pro-unlimited TiVo CRM application is a complicate Microservice java application. It include functions like purchase, exchange/return, activate, deactivate, setting up groups and other CRM related functions. It used SAP as Database, MuleSoft as ESB platform, java used in backend application, Angular JS used in frontend application. My programming focus was 60% backend and 40% frontend: ● Improved CRM (Sales Force) application base on business needs (Ecommerce, Exchange, Exchange Edit flow) ● Developed Frontend and Backend application using JAVA, Servlet, Spring, Maven, AngularJS, REST API, Mule Soft ESB and SAP. ● Optimized software by considering the time complexity and space complexity. ● Fixed/Implemented customer management application email system, Tracked/read big size of logs on Unix server through putty ● Updated company website using Drupal, PHP, CSS, HTML, JavaScript, Debug and fix day to day website and operational issues. ● Worked on migration a Wordpress application from 3rd party cloud company to AWS using EC2, S3, EBS control panel. ### Co-Founder/Crypto Developer @ Galaxy Networks Inc. Jan 2016 – Jan 2018 | Plug and Play Tech Center, Sunnyvale Development of Crypto currencies and secure wallet. Development of dApps, Writing DAPIs and smart contracts. video:https://www.youtube.com/watch?v=tD_mGEcAi9Q Currently working with blockchain-based projects to: • Design and implement Ethereum-based smart contracts for token sales • Develop front end of blockchain project using react redux • Architect and build new protocols on the blockchain • Draft technical white papers and present to investors • Define and analyze the economics of token sales to ensure all parties' incentives are aligned in the best possible way ### Software Engineer @ 888Consulting Inc. Jan 2015 – Jan 2016 | Sunnyvale 888 Consulting Company is focused on help other company develop mobile and web application. website located at http://888consulting.strikingly.com/ • YONO Labs - Helped with debug a calendar display error relate to REST API, UI update and swift. https://itunes.apple.com/us/app/id1039466025 • MealTally - Participated in the implementation of MealTally project using Mean Stack and Ionic. This is a project provided for public library counting meals provide to the public. It has counting, analytics and report functions. https://sjpl-meal-tally.herokuapp.com/ • Overseas Credit - Prototyped a Fintech IOS app using JustinMind. Studied different payment gateways and payment process system. http://www.boostshore.com/haiwaixindai/ • GameGuyz - Implemented a League of Legend game champion counter select support app. http://itunes.apple.com/us/app/id1000435927 • SunNet Solution - Implemented Calendar Integration using outlook REST API ### Software Engineer @ Vigo Technologies Jan 2015 – Jan 2015 | San Francisco, CA and Shenzhen, China Vigo company is a small startup company work on the IOT device. The product Vigo able to detect eye blinks of the user. It allows the user to control it through smart phone. One of the cool function is to alert the sleepy drivers and keep road trip safe. kickstarter.com/projects/jasongui/meet-vigo-the-very-first-energy-gauge-for-you • Designed a Bluetooth earphone prototype using Justinmind, Jira, Bitbucket • Worked closely with the outsourcing team, set the project goals and tracked the UI, iOS, Android, Server app progress. • updated the product based on user experience. • Designed, developed and maintained an iOS application using Xcode. • Managed 2 outsourcing person on project milestones, bugs solving, product solutions on mobile development project. ### PHP Programmer @ BestFit International, Inc. Jan 2014 – Jan 2014 | City of Industry, CA •Maintained internal PHP Enterprise web application. Discussed with Internal user on feature requirement •Maintained and improved on IIS server/Outlook server •built a pixel perfect Magento shopping cart website. Finished B2C business need for the company. •Tested website functions ### Web Developer @ Kansas State University Jan 2013 – Jan 2013 | Kansas State University Department of Mathematics • Added math problems to online quiz system • Replaced Java programs with JavaScript (XY-graph) • Designed php web page using notepad++ • Made photo gallery on PHP based website • Solved mobile device able to run JavaScript with specific host. ### Robotics Engineer @ Kansas State University Jan 2012 – Jan 2013 | Biology and Agricultural Engineering Robotics Lab, Manhattan, KS Student Volunteer • Presented real time information using Labview • Drew bottom plane using Photoshop • Wrote robotic program in C ### Generator Specialist @ US Army Jan 2008 – Jan 2012 • Deployed to Iraq for 12 months in support of Operation Iraqi Freedom • Performed troubleshooting on light vehicles/generator problems and replaced parts • Supervised 6 people including providing motivation and accountability ## Education ### Master's degree in Computer Software Engineering San José State University ### Bachelor's degree in Computer Science Kansas State University Jan 2012 – Jan 2014 ### on Coursera in Programming Foundations with JavaScript, HTML and CSS Duke University Jan 2017 – Jan 2017 ### Education minor University of California, Berkeley Jan 2016 – Jan 2016 ### Associate's degree in Computer Science Barton Community College Jan 2009 – Jan 2012 ## Contact & Social - LinkedIn: https://linkedin.com/in/yangchen7988 - Website: http://boostshore.com --- Source: https://flows.cv/yangchen JSON Resume: https://flows.cv/yangchen/resume.json Last updated: 2026-03-22