# Wonjae Yang > Senior Software Engineer at Toast Location: Greater Boston, United States Profile: https://flows.cv/wonjae ## Work Experience ### Senior Software Engineer @ Toast Jan 2021 – Present | Boston, Massachusetts, United States R&D - New Ventures • One of founding engineers of New Ventures Consumer team • Built several APIs to support both our app and consumer web applications. Highlighted projects: • Templatized SMS for restaurants to configure their sms messages and a restaurant facing UI tool for managers to change their sms messages • Helped architect and build Booking reservation and availability logic • Migrated from scheduled jobs to using pub/sub architecture (Pulsar) to update our team’s restaurant data and employee data whenever there is a change from Toast Core’s DB changes. • Led and built the Management Portal tool with 2 engineers as resource. Management Portal is a restaurant facing tool that allows restaurants to configure their Toast Booking settings to best fit their waitlist and reservation operation. • Successfully launched the Two-Way SMS project which will allow restaurants to communicate with customers via Twilio SMS. • Currently leading the Deposits project • Kotlin, Python, Postgres, DynamoDB, Typescript ### Software Engineer II @ Wayfair Jan 2018 – Jan 2021 | Boston, Massachusetts • Member of the Delivery Experience Management Team under Order Management Software • Successfully delivered initiative to create a new Track Package page for European customers. Led the initial investigation to correctly gather tracking information from our European engineering team. Built the backend layer to source tracking data from different internal APIs and correctly parsing and sourcing to our GraphQL fields. Coordinated with our team's senior frontend engineer to make sure that GraphQL contract is aligned. Delivered Jan 2021 • . Successfully mentored, guided, and executed projects for our team's 2019 summer intern engineer. Intern ended up getting a return offer • Currently working on Wayfair’s SMS platform, Email System, and My Order’s Track Package Page • Worked as the SMS expert for the team by teaching members about the SMS platform and working with different departments to extend SMS to their platform • Spearheaded launching Wayfair’s SMS program in Canada. I worked closely with Heywire (Salesforce), a 3rd party SMS sending company, to successfully integrate Canada SMS • Launched SMS subscription feature in the Track Package Page to Canadian customers. This increased ~50 daily subscription rate to over 600 daily subscription rate • Created a new SMS message – Order Reminder SMS that is used to communicate to customers when their order’s ship to delivery date difference is greater than 4 days. This new SMS reduced Call Per Order (CPO) metric for Where is My Stuff (WIMS) category by 40% ### Software Engineer @ Wayfair Jan 2016 – Jan 2018 | Boston, Massachusetts • Member of the My Account team under Order Management Software • Work full-stack software engineering with PHP, Javascript (Tungsten.js/ Backbone.js), SASS, and Microsoft SQL Server to build the My Account page for all Wayfair affiliated websites. • Use XSD and XSLT to build customer facing order-level emails ### Founder/Project Manager @ FlowerSori Jan 2020 – Jan 2020 | Boston, Massachusetts, United States Founded a hotline service as a joint project with Korean Church of Boston to serve our community by providing audio content to bring fun and joy during the Covid-19 crisis. We update our hotline with new audio contents every Monday, Wednesday, and Friday in both Korean and English. Call our number and give it a try! 1-888-520-0539 As the lead project manager, I worked with Telzio Inc. to set up our FlowerSori hotline service and make sure that the hotline runs smoothly. I coordinate with our audio content creators to make sure we upload most relevant and useful information and content to best serve our community. ### Student Government Executive Board - Treasurer @ Boston University College of Engineering Jan 2015 – Jan 2016 • Communicate with Student Activities Office for proper financial allocation • Direct meetings with engineering companies for funding and donations (Wayfair, AT&T, etc) • Manage $12,000 dollars of yearly funding for planning events and allocating budgets for class officers. • Propose social events for engineering students to allow students to meet other students and faculty members. • Speak directly to Deans, Presidents, and other administration faculties to seek help to better students’ experience ### Resident Assistant (RA) @ Boston University Jan 2014 – Jan 2016 • Manage a university hall floor of 80 undergraduate engineering students. • Work closely with a team of 20 other resident assistants to maintain control and secure safety within the residence hall. ### Vice President @ Unmanned Aerial Vehicle Team Jan 2013 – Jan 2015 | Boston University • Assist new members in designing and building quadcopters and tricopters. Assist more than 50 students per semester. • Lead projects for quadcopters with alternative controls such as using Xbox Kinect and glove sensors. • Lead students in building advanced unmanned aerial vehicle systems such as incorporating autonomous system, and fixed wing flight, alternative control systems. • Organize tours with local companies in the UAV system industries (Aurora Flight Sciences) ### Technical Writer intern @ ProtoType Industries, Inc. Jan 2014 – Jan 2014 | Santa Monica, California • Responsible for documenting and organizing Engineering Change Orders for the IFE (Inflight Entertainment) system components for more than 30 different airline’s IFE systems. • Offered improvements to the company’s technical writing software, SkyWriter, to expedite the time to complete technical manuals. • Worked closely with Panasonic’s and Thales’ IFE systems in Airbus A320 and Boeing 747. ### CEO QckSolution @ City of Santa Monica Jan 2012 – Jan 2012 • CEO of QckSolution • Created a mobile application that would enable user to find the cheapest parking spot in the nearest location. • Managed all aspects of the team including finance, programming, and marketing. • Managed a 6 member team. • Voted best business start-up plan by investors. ## Education ### Mechanical Engineering Boston University College of Engineering Jan 2012 – Jan 2016 ## Contact & Social - LinkedIn: https://linkedin.com/in/wonjae-yang-27634855 --- Source: https://flows.cv/wonjae JSON Resume: https://flows.cv/wonjae/resume.json Last updated: 2026-03-22