Xixu Cai (She/Her/Hers)

Experience

present 2025

A safe place for CT chicken lovers and brooders to share information about chickens. No Scammers. All about chickens.
Website development and maintanance / Social Media promotion / Customer Services.

2025 2023

Used Python FastAPI to provision Machine Learning envs for scientists in different countries.
Productionize a AI tool to estimate Co-Pays in >100 countries and regions.
Led the ML Ops team's code review, deployment cycles and security vunlerability fixes.
Improved team Documentation for onboarding and project transition.

2023 2022

Integrated ~3M client data Extract, Transform and Load (ETL) process with Enterprise standard.
Built a tool to help saving AWS Cloud cost by right sizing EC2 instances (save ~5M $) and migrating to serverless (~7M $).
Led whole department Quarterly Regional Failover (East to West) to ensure system resilience.
Collaborated with Database team to migrate from RDS to Aurora for cost and performace optimization.
Established team norms for AWS Security Groups and code vulnerabilities management.
Achieved AWS Certified Solutions Architect - Associate certification

2020

Built and managed a 6 people team for both Frontend and Backend development.
Mentored junior engineers to become independent contributors and future leaders.
Architected the personal preference search app and coached junior engineers.
Worked on a pilot project "Federal Search", which ran data ETL on AWS and optimized search for all data source.
2021 Q4 SpeedSprint award: reduced workflow time from ~4hrs to ~1hr.

2017

Developed a search and lookup tool for analytics apps which simplified the analytics data ETL process and sped up the search time.
Upgraded ElasticSearch from V1.9 to V6.5 to improve performance and reduce vulnerabilities.
Moved search and lookup APIs to a Heroku like platform which improved development cycle by ~5 days in average.
Created and led a POC intern project to move the lookup backend API to AWS which started the cloud migration in the whole search and lookup team.
2019 Q3 SpeedSprint award: reduced ~85% running time to process and upload analytics data.

2015

Created a search backend API with millions of records which reduces the search time to ~200 ms with ElasticSearch backend.
Increased reliability of data indexing by setting up relication and automated restart.
Cooperated with teams to adopt new data and onboard with our search tool.
Trained new employees with curated lectures and labs

2014

Worked on a deployment tool for dev-op engineers to easily manage the company's code deployment and install cycles.
Created monitoring tools for the company's host fleet.
Worked with various teams to coordinate weekly code deployment.

2014 2011

2011 2008