Roi Dayan
Senior Staff Engineer at NVIDIA
Israel
Summary
🤩
Rockstar🎓
Top SchoolRoi Dayan is a Senior Staff Engineer with 14 years of experience building high-performance storage and networking systems, currently at NVIDIA after a long tenure at Mellanox. He specializes in kernel and user-space software for RDMA, iSCSI/iSER, Open vSwitch offloading, and traffic control, combining system architecture with hands-on performance tuning. Roi is an active open-source contributor to projects like iproute2, Open vSwitch and tgt, where he added RDMA huge-page support, IPv6, packaging and flow-offload enhancements that improve real-world throughput and reliability. He has a track record of developing kernel drivers, hardware offload integrations, and regression frameworks, and has taken code from prototype to production across Linux and VMware ecosystems. Known for meticulous attention to quality, he also brings embedded/IoT experience from contributions to IRremoteESP8266, showing breadth across low-level timing-critical code and large-scale networking.
14 years of coding experience
10 years of employment as a software developer
B.Sc., Compuer Science, 87, B.Sc., Compuer Science, 87 at The Academic College of Tel-Aviv, Yaffo
English, Hebrew
Stackoverflow
1reputation
0reached
0answers
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Github Skills (37)
infiniband10
c-language10
lnk10
infrared10
rdma10
api-design10
iscsi10
wordpress10
linux10
system-design10
c1110
linux-kernel10
networking10
esp826610
c1710
Programming languages (11)
Github contributions (5)
fujita/tgt
May 2012 - Aug 2016
user-space iSCSI target daemon
Role in this project:
Back-end Developer & System Architect
Back-end Developer & System ArchitectContributions:41 commits, 3 comments in 4 years 3 months
Contributions summary:Roi significantly contributed to the `tgt` project, an iSCSI target daemon, by implementing several features and optimizations. They added support for huge pages to improve RDMA performance, introduced a parameter for configuring the RDMA buffer pool size, and limited the number of CQ entries. Furthermore, they addressed issues related to management functions and system initialization, indicating a focus on both performance tuning and system architecture. The user also added features for IPv6 support and RPM/Debian packaging.
iscsiuserspace
tareq1988/wordpress-settings-api-class
Mar 2015 - Oct 2016
A PHP class abstraction that removes all the headaches of the WordPress settings API under the hood and builds a nice options panel on the fly.
Role in this project:Back-end Developer
Back-end DeveloperContributions:15 commits, 21 PRs, 60 comments in 1 year 6 months
Contributions summary:Roi primarily contributed to the development and maintenance of a WordPress settings API class. Their work involved adding new input types, such as URL, and enhancing existing ones, like the editor and file upload. They also focused on code refactoring, improving the user interface with features like descriptions and fieldsets, and fixing bugs related to responsiveness and saving.
php-classwordpress
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