# Leejay Hsu > Software Engineer Location: San Francisco Bay Area, United States Profile: https://flows.cv/leejay Primarily have worked on Python backends, and React frontends. ## Work Experience ### Senior Software Engineer @ Tensec Jan 2023 – Present | Palo Alto, California, United States ### Senior Software Engineer @ Cushion Jan 2023 – Jan 2023 | San Francisco Bay Area ### Senior Software Engineer @ Carta Jan 2022 – Jan 2023 | Santa Clara, California, United States - worked on investment fund administration product ### Senior Software Engineer @ Bond Jan 2021 – Jan 2022 | San Francisco, California, United States ### Software Engineer @ Bond Jan 2020 – Jan 2021 | San Francisco, California, United States - Python microservices in Flask, Django, FastAPI - Built core functionality such as identity verification and ACH payments ### Implementation Engineer @ Castlight Health Jan 2017 – Jan 2020 | San Francisco Bay Area - Worked on seeding and managing customer configurations and vendor integrations - Resolved prod issues related to ETL pipelines with external vendors - Led a team of engineers dedicated to supporting internal microservices and ETL pipelines. ### Software Engineer - Test @ Wells Fargo Jan 2016 – Jan 2017 | San Francisco Bay Area • Performed functional and regression testing for XML/SOAP web services for online money transfers, bill payments, and identity management. • Designed test cases based on business requirements and technical specifications, and automated using Itko LISA (CA Devtest). • Utilized Splunk to efficiently view application log outputs. • Performed regression testing using Jenkins for new builds of supported services. • Filed and tracked defects, and communicated with developers to resolve issues. • Used Oracle SQL to manipulate and condition testing data. • Lead multiple test plan reviews and test case walkthroughs. • Maintained daily communication with team members and project managers regarding testing progress and defect tracking. ### Software QA Analyst @ Connected IO, Inc. Jan 2015 – Jan 2016 | Santa Clara, CA • Wrote automation test scripts for testing a live website using Selenium WebDriver • Performed regression testing on each new build of the website • Used TestRail to track test case creation and execution, and wrote automation test cases with Python in PyCharm IDE • Participated in daily meetings to discuss current work, future goals, and responsibility delegation ### Aerodynamics Engineer @ BMT Jan 2013 – Jan 2015 | Kuala Lumpur, Malaysia • Used OpenFOAM and CFX to study various internal and external flow simulations with specialized physics including Lagrangian Particle Tracking models, Monte Carlo Radiation models, and multi-phase flow solvers. • Designed and simulated several tuned liquid column damper using CFD to provide necessary structural damping for high-rise developments • Performed numerical analysis to identify critical building development design flaws including interior & exterior thermal comfort, stack effects, wind-driven rain, and ice loads • Used public weather records to separate synoptic weather behavior from extreme events to determine appropriate wind tunnel testing and numerical simulation boundary conditions • Filtered and interpreted large experimental and simulated data sets ### Research Assistant @ Santa Clara University Jan 2011 – Jan 2011 | Santa Clara, CA • Head of 3 man group of students researching electrolytic micropumps. • Presented weekly project updates to Principal Investigator. • Wrote LabVIEW VI’s to gather and record data. ### Lab Assistant @ Otech Engineering Jan 2008 – Jan 2008 • Trained in the safety and use of wind tunnels with 2’ x 2’ test section. • Recorded data in accordance with ISO standards. • Trained in the use of LabVIEW to record data. ## Education ### MS in Mechanical Engineering Santa Clara University ### BS in Mechanical Engineering University of California, Davis ## Contact & Social - LinkedIn: https://linkedin.com/in/leejayhsu - GitHub: https://github.com/leejayhsu --- Source: https://flows.cv/leejay JSON Resume: https://flows.cv/leejay/resume.json Last updated: 2026-03-22