# Michael Chen

> Engineering @ Extend

Location: San Francisco, California, United States
Profile: https://flows.cv/michaelchen3

## Work Experience
### Engineer @ Extend
Jan 2024 – Present | San Francisco Bay Area

### Founder @ Stealth Startup
Jan 2023 – Jan 2024

### VP of Engineering @ Playbook
Jan 2022 – Jan 2024 | San Francisco Bay Area
File Storage for Creatives!

Check out our AI focused release on Product Hunt!

### Director of Engineering - Pricing @ Opendoor.com
Jan 2020 – Jan 2022 | San Francisco Bay Area

### Director of Engineering - CORE @ Opendoor.com
Jan 2019 – Jan 2020
Building out the Core Real Estate systems that power life's most important transaction. We're hiring! 

- Building customer support systems to help internal support agents help with support tickets
- streamlining home operations to ensure quality and performance in home modeling and repairs 
- implementing software and hardware to enable a next generation home visiting experience while ensuring safety and security for agents and home buyers.
- architecting transaction systems to help with ensuring accuracy and timeliness in financial reporting

### Head of Pricing Engineering @ Opendoor.com
Jan 2017 – Jan 2019
Working on revolutionizing the home buying and selling process with Data and Algorithms. 

Currently managing multiple teams that are responsible for using Data, Machine Learning and algorithms to provide optimal pricing strategies at each stage of the home transaction process. 

We are hiring!
- Data Engineers
- ML Engineers and Managers
- Data Scientists and DS Managers 
- Full Stack Engineers (interested in gaining ML exposure)

### Machine Learning Engineering Manager @ Opendoor.com
Jan 2016 – Jan 2017
Building out Data and Machine Learning Infra to power models for valuation, risk, pricing decisions to automate buying and selling homes

Tech stack
- Kubernetes
- Airflow
- Postgres
- Spark
- Python (ML and data)
- Ruby (operations tooling) 
- React

Key Components 
- Data processing pipelines
- Feature Store
- Model Registry 
- Model Serving
- real estate specialist tooling for valuations, risk assessment, data management

### Machine Learning Engineer @ Opendoor.com
Jan 2015 – Jan 2016

### Senior Software Engineer @ Twitter
Jan 2014 – Jan 2015 | San Francisco
I worked on Twitter's Anti-Spam team, where I led projects on URL spam, fake accounts, compromised accounts, and content spam.

- Worked and built upon a flexible rule engine that was able to process synchronous and asynchronous events at Twitter sized traffic
- Developed URL crawling techniques to classify spammy URLs based on content, crawl chains, and IP addresses
- Built a near real time spam content detection system with Minhash Algorithms on Heron (Storm)
- Deployed batch content and user detection with Scalding / Vowpal Wabbit

### Senior Software Engineer @ Yahoo
Jan 2013 – Jan 2014
At Yahoo I worked with the original Stamped team to produce the Yahoo Finance Mobile App.

- Implemented real time news clustering and notification system using Machine Learning techniques
- Built a news feed server in Scala using Play!, including blending, clustering, and ranking
- Built a highly interactive chart on iOS using CorePlot

### Software Engineer @ Box
Jan 2012 – Jan 2013
At Box I worked on Box Preview, which was a platform which could convert arbitrary file formats (.doc, .pdf, .xls) to other formats, namely the ones we serve (.html, .swf, .png). 

- Worked on Ruby / Monit / RabbitMQ based compute cluster for transforming file types
- Set up Windows server for converting MS specific file types
- Implemented a variety of file transformers, including text, audio, video, and images

### Software Developer Engineer @ Microsoft
Jan 2010 – Jan 2012


## Education
### BS in Computer Science
Cornell University


## Contact & Social
- LinkedIn: https://linkedin.com/in/michael-chen-4649b39

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Source: https://flows.cv/michaelchen3
JSON Resume: https://flows.cv/michaelchen3/resume.json
Last updated: 2026-04-05