# Hao Xu

> Lead Software Engineer at Apple | Feast Feature Store (feast.dev) Maintainer

Location: Santa Clara, California, United States
Profile: https://flows.cv/haoxu

I’m a senior software developer, big data engineer, also intereste in distributed system and AI

## Work Experience
### Senior Software Engineer, machine learning infrastructure @ Apple
Jan 2025 – Present | San Francisco Bay Area
Data + AI

### Co-Founder @ Aita
Jan 2023 – Present
• Spearheaded the development of AI-driven analysis tools at Aita, focusing on simplification, efficiency, and cost optimization.
• Implemented diverse, open-source solutions in a cloud-native environment to enhance data analysis capabilities.

### Lead Software Engineer @ JPMorgan Chase & Co.
Jan 2023 – Jan 2025 | San Francisco Bay Area
Architect data and ml Infrastructure.
Build End to end services in the Merchant checkout system.
Build the batch and stream infrastructure and framework used for the core money, order and reporting team across millions of domains.

### Senior Software Engineer, ML Platform @ Affirm
Jan 2022 – Jan 2023 | San Francisco Bay Area
I built Machine Learning Feature System at affirm, and led the development of core batch and streaming infrastructure.

### Senior Software Engineer, Data Infrastructure @ Fast
Jan 2021 – Jan 2022
- Manage platform infrastructure including Snowflake/S3 for data storage, Airflow for data orchestration, EMR/Spark for data processing, Tecton/Redis for feature store.
- Build data pipelines for recommendation, search and analytics reporting both online and offline.
- Drive dataops, data monitoring and observability platform to ensure end-to-end data reliability.

### Senior Software Engineer @ Earnest
Jan 2020 – Jan 2021
- Deploy trained machine learning models in spark pipeline or real time streaming platform.
- Migrate legacy ETLs into Airflow, write tools to make ETL accessible to engineers on other teams.
- Build systems that secure and govern data end to end, and control access across multiple storage and layers.
- Develop, and maintain optimal data processing architecture and systems for new data ingestion and processing, and drive the recommendation for improvements and modifications to existing pipelines
- Architect and develop a large scale machine learning platform, build scalable and highly secured micro services like pricing service, scoring service, income service etc.

### Senior Software Engineer @ ShareThis
Jan 2019 – Jan 2020 | San Francisco Bay Area
- Developed the search platform, keywords/ semantic search.
- architect large scale data ingestion pipeline with airflow/spark
- built the data management platform

### Software Engineer @ ShareThis
Jan 2017 – Jan 2019 | San Francisco Bay Area
As a member of Growth team, with great experience and insights of the full life- cycle of data platform and pipelines.
-Build highly responsive production-ready applications using React
-Architect APIs and services with node.js and MongoDB
-Work closely with Amazon and Google big-data technologies such as Dynamo and BigQuery
-Develop services that will be used by millions of domains
-Work closely on both publisher-facing products and ad technology partner products

### Research Assistant @ Carnegie Mellon University
Jan 2016 – Jan 2017 | Pittsburgh


## Education
### Master’s Degree
Carnegie Mellon University
Jan 2015 – Jan 2016

### Bachelor's degree
Shandong University
Jan 2011 – Jan 2015


## Contact & Social
- LinkedIn: https://linkedin.com/in/hao-xu-a04436103

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