Claudiu Soroiu
Senior Lead Software Engineer at LSEG (London Stock Exchange Group)
Cluj-Napoca, Cluj, Romania
Summary
👤
Senior🎓
Top SchoolClaudiu Soroiu is a Senior Lead Software Engineer with over 15 years in financial software and more than a decade of hands-on experience building and leading trading and OMS/EMS systems. He led core engineering efforts at TORA for over a decade—rising from junior developer to VP of Software—and now drives platform work at LSEG, combining deep domain knowledge in capacity, availability and performance with team leadership. A pragmatic back-end engineer, he contributes to high-performance open-source projects such as the Simple Binary Encoding library, improving low-level buffer safety and cross-language code generation. Claudiu pairs a rigorous computer science background with formal leadership training from Harvard Business School Online, and is known for turning performance-critical financial requirements into robust, production-grade implementations.
12 years of coding experience
19 years of employment as a software developer
High School Diploma, Informatics, High School Diploma, Informatics at Colegiul National Ecaterina TeodoroiuUniversitatea Babeș-Bolyai din Cluj-NapocaOther; Certificate in Leadership Principles, Complete, Other; Certificate in Leadership Principles, Complete at Harvard Business School Online
English, French, Romanian
Stackoverflow
1,479reputation
186kreached
75answers
1question
java
top-5%
Github Skills (23)
bit-manipulation10
java10
javas10
bytecode10
byte10
byte-array10
test-automation10
codec9
android9
dotnet-core8
encoder-decoder8
csharp8
openwrt6
io6
regex6
Programming languages (4)
Github contributions (5)
aeron-io/simple-binary-encoding
May 2014 - Dec 2014
Simple Binary Encoding (SBE) - High Performance Message Codec
Role in this project:
Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:37 commits in 6 months
Contributions summary:Claudiu focused on enhancing the `Simple Binary Encoding` (SBE) library, specifically contributing utility methods for efficient byte copying operations within `DirectBuffer` and optimizing Java code to avoid potential buffer overruns and JVM crashes. They introduced new methods for byte manipulation between direct buffers and array buffers. The user also performed a series of refactors, including moving utility classes to more appropriate packages and fixing Java and C# code generation bugs. Further contributions include Android-related adaptations.
golangsbecodecc-plus-plusbinary-encoding
csoroiu/lambdamatchers
Aug 2016 - Aug 2022
Contributions:18 releases, 190 commits, 457 pushes in 6 years 1 month
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