Alex Rosenbaum
Principal Software Architect at NVIDIA
Petah Tikva, Center District, Israel
Summary
👤
Senior🎓
Top SchoolAlex Rosenbaum is a Principal Software Architect with 15+ years of experience designing high-performance networking and communication systems, from embedded drivers to server-side libraries. Currently at NVIDIA, he previously led R&D and acceleration software groups at Mellanox/Voltaire, delivering low-latency solutions for trading, HPC and virtualization stacks. He combines deep kernel-to-user-space expertise (RDMA, RoCE, DPDK, PMDs, verbs) with hands-on performance tuning and system integration, and has contributed to notable open-source work such as libvma to accelerate socket I/O. A proven people leader, he has managed teams of ~15 and coordinated cross-group and subcontractor efforts while shipping under tight, dynamic timelines. An early innovator in VoIP, he even built the first Skype-integrated answering and novelty apps, illustrating a long-standing appetite for practical, creative engineering.
15 years of coding experience
25 years of employment as a software developer
BSc. Physics, BSc. Physics at Tel Aviv University
English, Hebrew
Github Skills (9)
linux10
logging10
c-language10
cprogramming-language10
performance-optimization10
rdma10
networking10
system-programming9
error-handling9
Programming languages (3)
Github contributions (5)
Mellanox/libvma
Aug 2013 - May 2017
Linux user space library for network socket acceleration based on RDMA compatible network adaptors
Role in this project:
Back-end Developer & System Engineer
Back-end Developer & System EngineerContributions:1 release, 27 commits, 39 PRs in 3 years 9 months
Contributions summary:Alex primarily focused on improving the performance and stability of the VMA library. They addressed several issues related to logging levels, error handling within specific hardware contexts, and buffer management. Furthermore, the user implemented logging improvements across iomux flows, and added a feature to control the number of post sends until requesting a signal, impacting the library's performance.
linuxrdmasocketuserspace
accelio/JXIO
Aug 2013 - Jan 2015
Java API over Accelio
Contributions:199 commits, 1 comment in 1 year 4 months
java-api
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