# Eric Tsui

> Flex

Location: Greater Boston, United States
Profile: https://flows.cv/erictsui

## Work Experience
### Software Engineer @ Flex
Jan 2023 – Present
○ Full stack engineer building internal tooling and payment automations for property management companies via API integrations. Working with Java, SQL, DocumentDB, Javascript, and Python

○ Led the implementation for multiple new payment integration microservices in tandem with multiple partner property management platforms such as Rentmanager and Resman. Managed communication between internal and external stakeholders.

○ Rearchitected various manual processes into asynchronous microservices. Created automated validation and payment reconciliation processes that saved account managers 30+ hours/month and championed observability via monitoring dashboards/logging

### Senior Software Engineer @ Ribbon
Jan 2021 – Jan 2022
- Full Stack developer working across multiple teams to develop internal tools and external apps in Python, React, Typescript, and GraphQL.

- Tech lead on multiple engineering projects, from creating dashboards to share listings from prospective home sellers, internal financial program automation for account managers, designing a reverse geocoding service to query for properties eligible for financial products, and a frontend design system migration to improve maintainability and reduce tech debt.

- Eng Guild Lead for the shared UI components library among Eng dept. Driving and planning tasks to standardize simple reusable components and their features.

- Improved the teams codebase test coverage by implementing unit tests in python and component tests using React testing library.

### Software Engineer II @ Wayfair
Jan 2019 – Jan 2021
+ Full Stack Developer responsible for developing business tools and automated processors across multiple team domains utilizing PHP, React, GCP, Python, GraphQL, and MySQL
+ Work directly with Product Management and Business Stakeholders to define project specifications and features on our future development roadmap.
+ Technical lead for development on a configurable payment automation processor in Python capable of processing over 1 million+invoices/day with unique validation rules per supplier/carrier. Responsible for both implementation and scoping/estimating work for other engineers to pick up.
+ Project lead of finance invoicing tool responsible for tracking the processing status, history, payment status of invoices, and allowing users to perform actionable business processes via React UI.
+ Contributor to internal Javascript/React coding standards workgroup, active code reviewer among my peers prior to deploying code.

### Software Engineer @ Wayfair
Jan 2017 – Jan 2018 | Greater Boston Area

### Software Engineer Intern @ VERISIGN
Jan 2016 – Jan 2016
-Developed an Apache Kafka consumer tool with Java for monitoring and debugging purposes to read through hundreds of
topics, parse network information, format the output, and save the output.
- Contributed development to a pre-existing web application(PHP,Javascript) that tracks the status of the global DNS resolution
sites that Verisign hosts.
- Developed a webcrawler utilizing the Selenium webdriver for debugging internal software.
- Experience with build automation using Jenkins,Artifactory, and Gradle
- Agile based team software development: Took role of scrum leader, as well as pointing and assigning tickets.

### QA Consultant @ uTest
Jan 2015 – Jan 2016
-Performed various functional and exploratory testing of web,desktop, and mobile applications through the uTest/Applause platform for various companies.
-Wrote detailed bug reports according to specification.

### Research Assistant @ SUNY Polytechnic Institute
Jan 2013 – Jan 2014
-Collaborated with Dr.Brainard to develop cLESiS software(Low Energy Electron Scattering in Solids).
- Designed an application with research team to use C++,Java, and Python to track electrons and record events as they traveled through a photo resist.
-Developed GUI in Java for handling data inputs and outputs.


## Education
### Bachelor of Science - BS in Computer Systems Engineering and Computer Science
Rensselaer Polytechnic Institute


## Contact & Social
- LinkedIn: https://linkedin.com/in/eric-tsui-72069788

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Source: https://flows.cv/erictsui
JSON Resume: https://flows.cv/erictsui/resume.json
Last updated: 2026-03-28