# Yifan Jiang

> Senior Software Engineer at Upstart

Location: Fullerton, California, United States
Profile: https://flows.cv/yifanjiang

Yifan is the full stack web developer

## Work Experience
### Senior Software Engineer @ Upstart
Jan 2021 – Jan 2022

### Head Of Engineering @ Harmonize
Jan 2019 – Jan 2021
- Converted a prototype built on .NET Azure to a more modern stack 
     - Migrated sql database to AWS RDS
     - Added full CICD through CircleCi
     - Revamped the frontend to a SPA with React
     - Converted the API to NestJS allowing fullstack developers to use typescript only
     - Dockerized the deployments and managed the servers with ElasticBean stalk
- Set up a two week sprint process to more accurately predict the team's work capacity
- Lead and mentored a team of 2-4 Fullstack engineers and 2 mobile developers from seed round all the way to series A
- Architected the entire system and all of its integrations to other third party software and medical EHRs

### Lead Full Stack Web Developer @ ThunderCore, Inc.
Jan 2018 – Jan 2019
Built mobile crypto wallet in react-native and released to both app store and google play
-https://play.google.com/store/apps/details?id=com.thundercore.mobile&hl=en_US
-https://apps.apple.com/us/app/thundercore-hub/id1471222243 

Built blockchain explorer in react and express
-https://scan.thundercore.com/

Built blockchain proof of concept applications in Typescript + React + NestJs + Solidity
-https://thundercore.github.io/DoubleOrNothing/

Built Developer portal with documentation for our users
- https://developers.thundercore.com/

Built binary file storage system with data integrity validation through the block chain 
Built Selenium wrapper to facilitate testing browser interactions along with chrome plugin interactions

### Technical Lead @ Vida Health, Inc.
Jan 2018 – Jan 2018
Rebuilt the old internal coach dashboard with React + Redux
Built an analytics package with schema validation to insure data integrity
Learned new technologies and introduced/taught them to the team

### Full Stack Developer @ Roomi
Jan 2015 – Jan 2017 | San Francisco
Roomi is a free mobile platform that helps people find flexible, affordable co-living solutions. That starts with building back trust in the peer-to-peer marketplace, so we set out to create the simplest and safest choice for the housing search.

### Contractor @ Gap Inc./GapTech
Jan 2015 – Jan 2015 | San Francisco Bay Area
Worked with a team to maintain, and upgrade our micro-service (Api and Ui) that loads and feeds multiple consumers with analytic and configuration data
Increased Api test coverage by 80% with the addition of 700 more scenarios

Set up the foundation for UI testing using Selenium Web Driver
Mentored a new college graduate in order to catch him up to speed
Point man for locating and hot fixing any bugs that business users run into
Maintained and deployed the QA environment
Automated the database migrations and the running of the test for our local machines
Analyzed performance bottlenecks

### Intern @ Shanghai institute of computing technology
Jan 2013 – Jan 2013
Analyzed and operated the Shimadzu LC-20AD Prominence HPLC Pump
Aided with the creation of the UI using C# window forms
Provided English translations for language localisation

### Student Assistant @ Qualcomm Cafe Cal Dinning
Jan 2011 – Jan 2013
Served over 40 customers an hour in a timely manner during rush hours
Maintained a clean environment at our work stations


## Education
### Bachelor of Engineering (B.Eng.) in Material Science and Engineering
University of California, Berkeley
Jan 2008 – Jan 2014

### Web Development Bootcamp in Full Stack Web Development
App Academy
Jan 2014 – Jan 2015


## Contact & Social
- LinkedIn: https://linkedin.com/in/jiangyifan

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Source: https://flows.cv/yifanjiang
JSON Resume: https://flows.cv/yifanjiang/resume.json
Last updated: 2026-03-22