# Jin W.

> Topcoder

Location: Mountain View, California, United States
Profile: https://flows.cv/jinw

Experienced Software Engineer with a demonstrated history of working in the internet industry. Skilled in  Algorithms, Distributed system availability, and scalability.

## Work Experience
### Principal Software Engineer @ Roblox
Jan 2022 – Present
Own core data infrastructure powering geo-distributed storage and data APIs at multi-region scale (100M+ RPS, supporting ~150M+ daily active users).
Drive system architecture and production execution across microservices, caching layers (Redis), and multi-datastore systems (Postgres, CockroachDB), with services primarily in Rust.
Accountable for reliability (SLO/SLI), scalability, and peak traffic readiness, including capacity planning and new data center bring-up.

### Software Engineer @ Nextdoor
Jan 2020 – Jan 2022 | San Francisco Bay Area
Core Platform - Infrastructure
- Lead the design and dev of ORM caching for Python Django framework
- Local Business

### Builder @ DataBeyond
Jan 2018 – Jan 2020 | Palo Alto
- Built the data service for eCommerce to identify the fashion trend

### Software Engineer @ Alipay
Jan 2017 – Jan 2018 | San Francisco Bay Area
- Lead the design and implementation of combined payment (card, coupon, cash, etc) feature across payment domain microservices to accommodate flexible payment scenarios requests. (Used spring-based SOFA framework to deal with transactions across distributed services, convert synchronized requests to async ones in high traffic cases to fulfill 2 seconds payment complete requirement, used distributed key-value store to store flexible payment approaches configuration for different account, used distributed relational database Oceanbase for data storage)
- Refactored critical logic path to improve availability and performance in extremely high throughput cases such as 20K TPS.
-  Lead the realtime invoice lookup feature design and development, and integration with external services provided by the partner Apple. (Design new service APIs for third party usage.)
- On-call team lead of payment domain (multiple payment microservices) helps the team quickly do the root cause and take actions accordingly.
- Technical mentors for new hire and junior engineers.
- Prepare and instruct technical solutions for partners who want to integrate with Alipay payment service API.

### Software Engineer @ Nimble Storage
Jan 2014 – Jan 2017 | San Francisco Bay Area
Predictive storage data analysis platform

### Research Assitant, Teach Assistant @ Peking University
Jan 2009 – Jan 2012 | Beijing City, China
Research on distributed system security

### Research Assistant @ Tsinghua University
Jan 2010 – Jan 2010 | Beijing City, China
High Performance Computing Research for LIGO


## Education
### Master's degree in Computer Science
UC San Diego


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

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Source: https://flows.cv/jinw
JSON Resume: https://flows.cv/jinw/resume.json
Last updated: 2026-04-12