Kazuhiro Saito
Senior Manager at KDDI Research, Inc.
Chiyoda, Japan
Summary
🤩
Rockstar🎓
Top SchoolKazuhiro Saito is a Senior Manager and research engineer with eight years of focused experience at KDDI Research, blending database and distributed-systems expertise with applied quantum computing and AI systems. He has hands-on experience contributing to notable open-source database projects from Carnegie Mellon (Peloton/NoisePage), where he implemented backend features and improved logging and decimal function support. His research portfolio spans SQL query optimization, MLOps, federated learning, and practical quantum methods (quantum annealing, VQE/QAOA, QML), and he has applied these techniques to real-world telecom and operations problems like LTE/5G parameter tuning and shift scheduling. Equally comfortable in systems-level C++ work and prototyping on platforms such as D-Wave, IBM-Q, Qiskit and Pennylane, he bridges academic research and industrial deployment. He holds advanced graduate training from Keio University and a master’s in software engineering, and maintains an academic presence via Google Scholar and DBLP. A less obvious strength is his track record of translating low-level database internals into production-ready features that improve observability and numerical correctness.
8 years of coding experience
12 years of employment as a software developer
Doctoral Program, 政策・メディア研究科 / Graduate School of Media and Governance, Doctoral Program, 政策・メディア研究科 / Graduate School of Media and Governance at 慶應義塾大学Master's degree, Computer Software Engineering, Master's degree, Computer Software Engineering at 成蹊大学 / Seikei University
Japanese, Chinese
Github Skills (16)
bigdecimal10
databases10
decimal-numbers10
decimals10
c-language10
cprogramming-language10
decimal10
relational-databases10
dbm10
dbms10
sql-database10
database10
sql9
code-generation8
testing7
Programming languages (1)
Github contributions (5)
cmu-db/peloton
Nov 2017 - Jul 2018
The Self-Driving Database Management System
Role in this project:
Back-end Developer / Database Engineer
Back-end Developer / Database EngineerContributions:28 commits, 8 PRs, 52 comments in 7 months
Contributions summary:Kazuhiro primarily contributed to the database management system's back-end functionality. Their work involved adding a "round" function, including its implementation in C++ code for decimal types and integrating it into the database catalog. Additionally, they modified testing files to incorporate and validate the new function. Further changes suggest modifications to the query compiler, and code proxy for the decimal functions.
management-systemrdbmsdatabase-management-systemself-drivingdatabase
cmu-db/noisepage
Jul 2018 - Jul 2018
Self-Driving Database Management System from Carnegie Mellon University
Role in this project:Back-end Developer
Back-end DeveloperContributions:10 commits, 3 PRs, 9 pushes in 5 days
Contributions summary:Kazuhiro's primary contribution involved integrating the Easylogging++ logging library into the project. This includes adding the library as a third-party dependency, implementing logger initialization, and setting up logging configurations. Further contributions focused on incorporating logging settings and fixing related namespace issues within the codebase. This work indicates a focus on improving the project's debugging and monitoring capabilities.
management-systemdbmsdatabase-management-systemcarnegie-mellon-universityself-driving
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