Nikolaos B
Co-Founder at Number Eight LLC
Las Vegas, Nevada, United States
Summary
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Rockstar🎓
Top SchoolNikolaos B is a cryptography expert and distributed systems architect with over two decades of experience delivering secure, high-performance systems in modern C++. As a former Director of RippleX Engineering who led 30+ engineers, he shipped core XRPL protocol work including XLS-20 NFTs, XLS-39 compliance features, and consensus optimizations that materially reduced ledger close times. He co-founded hardware and R&D ventures (NUMBER EIGHT programmable HSM, CodeLaboratories stereo camera) and holds multiple patents in cryptographic systems and private asset transactions. Deeply practical across embedded firmware (STM32/ESP32), HSM design, and real-time distributed services, he also contributed bug fixes and stability improvements to high-profile open-source projects like RocksDB and rippled. Comfortable translating cryptographic research into production-safe code, Nikolaos has repeatedly driven cross-organizational roadmaps, security audits, and adoption strategies for blockchain ecosystems. Based in Las Vegas, he blends low-level firmware insight with protocol-level architecture—a combination that has enabled both SSD/firmware advances and scalable blockchain protocol engineering.
12 years of coding experience
26 years of employment as a software developer
Computer Science and Mathematics, Computer Science and Mathematics at University of Nevada-Las Vegas
French, Greek, English
Stackoverflow
10,573reputation
1.7mreached
370answers
0questions
windows
top-5%
winapi
top-5%
Github Skills (26)
storage-engine10
c-language10
memory-management10
databases10
blockchain10
cprogramming-language10
database10
winapi9
data-structure9
debug9
algorithm9
debugging9
algorithms9
windows9
cryptography9
Programming languages (7)
Github contributions (5)
XRPLF/rippled
Aug 2013 - Dec 2022
Decentralized cryptocurrency blockchain daemon implementing the XRP Ledger protocol in C++
Role in this project:
Back-end Developer
Back-end DeveloperContributions:3 releases, 395 reviews, 741 commits in 9 years 4 months
Contributions summary:Nikolaos's commits indicate a focus on back-end development within the XRP Ledger protocol. They primarily addressed bug fixes, such as handling whitespace in IP ports and missing return value error checks, while interacting with the codebase's pathfinding and offer processing. The user refactored the transactor code. They also added new features for ledger handling and data validation and adjusted default settings.
cryptographycppxrpldaemonblockchain
facebook/rocksdb
Aug 2014 - Oct 2014
A library that provides an embeddable, persistent key-value store for fast storage.
Role in this project:Backend Developer
Backend DeveloperContributions:10 commits in 1 month
Contributions summary:Nikolaos primarily contributed to bug fixes and code improvements within the RocksDB database library. Their work addressed issues related to file comparison, variable naming, memory leaks, and potential null pointer dereferences. The commits demonstrate a strong understanding of the codebase and a focus on improving the stability and efficiency of the database engine. The contributions involve modifications across multiple source files, demonstrating broad knowledge of the project's architecture.
persistent-storagebigtablefast-storagelsm-treedatabase
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