# En-Hsien Chou

> Software Engineer @ Databricks | Master of Science in Software Engineering @ CMU

Location: San Francisco Bay Area, United States
Profile: https://flows.cv/enhsien

Software engineer passionate about building scalable systems that improve developer productivity and system reliability. At Databricks, I strive to make our pre-merge pipeline smarter and more reliable, using data to reduce flakiness and speed up development velocity across the company. I enjoy solving ambiguous problems, shipping robust solutions, and collaborating to make infrastructure invisible.

As a Software Engineer with a Master of Science degree from Carnegie Mellon University, I bring a blend of academic excellence and practical experience to the table. My expertise lies in Data Structure and Distributed Systems, which I leverage to enhance code and CI processes within the organization.

Previously, while at Tsinghua University, the creation of a query system for a satellite network showcased my ability to handle complex data organization and indexing challenges. This role honed my skills in parallel computing and algorithms, directly contributing to our team's success in developing scalable, efficient software solutions. My goal is to continue pushing the boundaries of software engineering, ensuring our infrastructure remains agile and performant in an ever-evolving tech landscape.

## Work Experience
### Software Engineer @ Databricks
Jan 2023 – Present | San Francisco Bay Area
- Drove reliability initiatives across pre-merge CI pipeline, reducing flaky test noise through smarter test triage, Pass-Fail status probability scoring, and auto-revert systems.

- Led development of FindFlakes, a service to detect and manage flaky tests at scale. Improved engineering productivity and reduced incident rates across multiple eng teams.

- Expanded the SmartRevert service to handle rate-limiting, invalidation logic, and end-to-end ownership of notification system integrating with slack, increasing signal quality and confidence in automated reverts.

- Proactively refactored legacy systems, improving reliability and maintainability (e.g., modularized flakiness analysis pipeline, simplified downstream consumer in slow tests, migration work from developer portal with runbot, etc.)

### Research and Development Assistant @ Tsinghua University
Jan 2021 – Jan 2022
HPC Lab. Final Thesis Project: A Query System with Data Organization and Indexing based on Satellite Network.

- Established a complex satellite network with 12 high-orbit, 24 mid-orbit and 552 low-orbit Satellites.
- Generated and organized about 5.6 million of satellite observation data during a simulation of one-hour orbit.
- Designed and implemented a query system with time & spatial indexing to simulate and improve the process of user search with specific attributes.
- Skill Lists: Distributed System, Parallel Computing, Algorithms, Computer Network, Python

### Software Engineering Intern @ Microsoft
Jan 2020 – Jan 2021
Bing Maps Team. Designed and implemented a ground truth data collection system for worldwide data centers; Established useful dashboards, tools and testings to monitor and reduce real-time query traffic in production.
- Skill List: Design Patterns, XPing Test, SQL Server, Python, CSharp, UI/UX Design

### Software Engineering Intern @ Airbnb
Jan 2021 – Jan 2021 | Beijing
Host Experience Team. Designed and implemented a new host cancellation workflow for all Airbnb China Users; Got the return offer.
- Skill List: React, TypeScript, Jest, React Testing Library, GraphQL, Apollo

### Research And Development Assistant @ University of Chicago
Jan 2021 – Jan 2021 | Remote
CHAI Lab. Implemented a WEB demo for human-centered interactive models for the task of decision summarization. 
- Skill List: JavaScript, MySQL, Django, Python, PyTorch

### Research And Development Intern @ SenseTime 商汤科技
Jan 2021 – Jan 2021
NLP team. Implemented & investigated into pre-trained language models.
- Skill List: Git, Linux, Python, PyTorch, Data cleaning & visualization


## Education
### Master of Science in Software Engineering
Carnegie Mellon University

### Bachelor of Engineering - BE in Computer Science
Tsinghua University


## Contact & Social
- LinkedIn: https://linkedin.com/in/en-hsien-chou

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