Rusheng X. Email & Phone Number

Dalian, Liaoning, China

As a Core U2 Database Developer, I responsible for research of new technologies which can be used in the enhancement of Multi-Value database, like distributed storage, in-memory database feature, MVCC mechanism, new index, MV BASIC compiler enhancement etc. At the same time, I also responsible for resolving the bugs or emergency problem that customers encountered.Key Achievements:● Implemented object-oriented feature for MV BASIC compiler on UniVerse (UV).● Implemented try/catch exception handling feature for MV BASIC compiler.● Optimize BASIC runtime with LLVM back-end optimization and JIT functionality.● Maintaining Storage Engine, Query Engine and Transaction Processing Engine.● Created a Distributed Database prototype by re-architecting UV using TiKV & Rust.● Realized RPC framework with gRPC&asyncIO, 100% throughput increase in theory.● Research the technical problems and best practices for migrating database software to cloud env and addressed technical challenges and considerations.● Created several eBPF-based tools for issue detection and performance tuning.● Realized OOP Language converter into BASIC using ANTLR4.● Created CMake-based build system for UV, resolved the issues of old build system.● Architect interaction between Rust and MV BASIC with Rust procedure macro.● Performance improvement on U2 Engine, Basic and the python module: u2py.● Python integration with U2 product.● Maintaining U2 product code build/compile system.● U2 DBMS maintenance and handling critical customer cases.

Dalian, Liaoning, China

As a core developer of Data Engine and the creator of columnar storage. I want the storage can store huge of data and the Data Engine can handle more requests concurrently. So, I started the research and practices of Distributed Data Engine.Key Achievements:- Architecture designing for distributed Data Engine system. (DDES)- Research distributed algorithm base on DDES including Map / Reduce.- Write DDES prototype project.- Write DDES designing documentation.- Coding Refactor, Performance improving, structure adjustment.

Dalian, Liaoning, China

Rocket Discover (QMF Vision) is a new generation BI product of Rocket Software which is used in data analytics and data visualization which uses Columnar Storage as its low level storage. As a Supervisor, Software engineering, I lead a technical team of 5 to develop the Data Engine. I designed the global architectural of Data Engine and solely designed and implemented the Columnar Storage component.Key Achievements:- Global architecture design of Data Engine (DE) which is running in backend.- Created the columnar storage (CS) solely which is the core part in DE, which used a lot of new technologies in those days, like: column group, online data compression / decompression, batch data input, concurrent data accessing.- File accessing module, working thread designing, DE Fronter R&D.- Realized all kinds of RESTful based data sources accessing component: QMF/D3/U2/NG/Cognos/…- Implemented cloud resource accessor: Dropbox / Box / RLink / Direct URL accessing.- Lead the back-end technical team for Data Engine.

Dalian, Liaoning, China

CorVu / CorBusiness is previous generation BI product. I responsible for maintaining and developing new features of the product.Key Achievements:- Maintaining CorVu / CorBusiness system, Fix bugs, do enhancement, new task.- New component and tools I created: CorVu Scheduler service, HyperVu debug tools, CorVu Email component SSL support, Html Parser and xlsx generator, STL enhancement for old Borland C++.

Dalian, Liaoning, China

Developing and maintaining the online game server, create new protocols and logic to support new requirements, game client protections.Key Achievements:- Responsible for the designing and implementing the online game logical server.- Bug fixing, functional enhancement, maintaining stability of Game Server.- Program performance optimization and support tools development: system repair.- Online program patches and client repair.- Game-server plugin detection and prevention.- Research & Development high performance network library.- Implementing Stress Testing Tool for network library and online game server.

Beijing, China

As an intern in the company, I attend several projects development about testing tools or outside projects.Project: The GUI testing tools development with script interpreter system -- July 2007 ~ August 2008Main works: Designed the syntax and structure independently of the script interpreter, and implemented it in VS2005 environment using C++ programming language.Project: Software activation and auto-update system -- July 2007 ~ November 2007Main works: It is realized under VC6, uses the SOAP Tookit API to communicate with WebService. I Assist in the requirement analysis and related document editing; Independently responsible for the design of the client-side COM components and the encryption and decryption process in communications.Project: The Distributed Information Sharing System -- Apr 2007 ~ July 2007Main works: Responsible for the detailed design and development of the software and the related testing works in the last stage. The technology used are J2SE, HTTP/HTTPS, FTP, SMB protocol.

Master'S Degree, Computer Science

Activities and Societies: Physics teaching, Software Development

Bachelor'S Degree, Geography Science

Activities and Societies: Wushu, Science and Technology Activity