Ryo Kambayashi
Research Engineer at NTT
Tokyo, Japan
Summary
👤
Senior🎓
Top SchoolRyo Kambayashi is a research-focused software engineer and engineering manager based in Tokyo with 11 years of experience building and supporting infrastructure-level systems. He blends R&D rigor from roles at Fujitsu and NTT with hands-on product engineering and team leadership at Ory Laboratory, shipping systems spanning databases, distributed/gossip overlays, and ML-enabled features. An active hobbyist developer since the early 2000s, his open-source projects include SamehadaDB, FunnelKVS, Over-NAT-Lib and DNN FX sim, reflecting a practical interest in databases, parallelism and P2P networking. He favors PostgreSQL and routinely works at the intersection of ML, DB and distributed systems, often turning research prototypes into production-ready components. Known for tackling low-level infrastructure challenges, he brings both academic depth from the University of Tsukuba and pragmatic delivery experience across startups and large R&D teams.
11 years of coding experience
12 years of employment as a software developer
Master's degree of Engineering, Computer Science, High Performance Computing, Large Scale Distributed System, 大学院へは成績優秀者枠での推薦で入学, Master's degree of Engineering, Computer Science, High Performance Computing, Large Scale Distributed System, 大学院へは成績優秀者枠での推薦で入学 at Graduate School of Systems and Information Engineering, University of TsukubaBachelor's Degree of Information Science, Computer Science, High Performance Computing, Large Scale Distributed System, almost A, Bachelor's Degree of Information Science, Computer Science, High Performance Computing, Large Scale Distributed System, almost A at University of Tsukuba
Japanese, English
Stackoverflow
11reputation
265reached
0answers
1question
Github Skills (110)
python10
rdbms10
rest-api10
golang10
rust10
relational-databases10
database10
nostr10
go10
webrtc10
dht10
simulation10
chord10
skiplist10
document-generation9
Programming languages (14)
Github contributions (5)
ryogrid/ryogrid.github.io
Feb 2023 - Jan 2026
Contributions:70 pushes, 1 branch in 2 years 11 months
ryogrid/fx_systrade
Jul 2015 - Oct 2020
FX system trade simulation programs using machine learning methods
Contributions:751 commits, 17 PRs, 909 pushes in 5 years 3 months
machine-learningsimulation
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