ZHONG YU

Extensive knowledge in Java ecosystem, database, concurrency, distributed system, internet technologies.
Strong analytic and problem solving skills, detail-oriented, practical-minded. Curious and creative.
Honor-bound, take pride and ownership in my work. Aim to impress, always deliver. Enjoy teamwork.

Experience

2021 - 2022 New York, NY Percent Senior Software Engineer

Loan Risk Analysis

Added multitenancy support to legacy application with compartmentalization of data and access.
Improved financial data extraction and transformation from excel files.
Modernized acquired IP, imporoved its architecture, and brought it to production quality.

2017 - 2018 Hangzhou, China Alibaba Group Staff Software Engineer

StreamCompute Platform for AliCloud

Worked on Apache Flink's SQL Query Processing module to add features and fix issues:
Analyzed and enforced SQL standard-compliance. Implemented full support for Decimal type.
Introduced new strategies in query optimizer that greatly improved TPC benchmarks.
Established a theoretical framework to transform any join-group-aggregate queries for optimization.

2001 - 2008 Santa Clara, CA Atypon Systems Senior Software Engineer

Online Publishing Platform

Created a backend workflow system, with a modeling language, compiler, engine, and admin interface.
Created an authoring system for clients to edit, version, audit, stage, and publish web pages.
Created infrastructure frameworks, including ORM, caching, distributed consensus.
Maintained and improved website performance, scalability, and availability for growing demands.
Integrated with client systems through numerous proprietary and standard protocols.
Implemented various business features, in particular identity management, access control, e-commerce.
Worked directly with clients to resolve issues, gather requirements, and write specifications.

1998 - 2000 Batavia, IL Fermi National Accelerator Lab Researcher

DØ Collider Detector

Implemented frameworks and algorithms in C++ for real-time detector event streaming and analysis.
Created Labview applications for mapping magnetic field in DØ detector solenoid.
Wrote Delphi applications to motorize lab machines, to acquire and analyze experimental data.

rekex.org - PEG parser generator for Java 17 - grammar as algebraic datatypes.
bayou.io - Async HTTP server/client - high performance in functional style, full-featured.
subpage - ReactJS router - simple API, flexible navigation models.