Grant Birchmeier
Director Of Engineering at Connamara
Glenview, Illinois, United States
Summary
👤
Senior🎓
Top SchoolGrant Birchmeier is a Director of Engineering with 15+ years building high-performance trading systems, exchange platforms, and FIX integrations at Connamara Systems. He combines deep protocol and low-latency engineering expertise across C#, Go, Java, C++, Ruby, Python and Kotlin with hands-on leadership that moves teams from research to production. As lead maintainer of QuickFIX/n and contributor to QuickFIX/J, he improves reliability in critical financial messaging engines used widely in capital markets. A pragmatic advocate of Agile, test-driven development, he pairs rigorous engineering practices with product-focused delivery. Based in Glenview, Illinois, he brings a background in UMTS protocol development at Motorola and a MS in Computer Science, which informs his systems-level approach to trading infrastructure. Quietly technical and community-minded, he still answers developer questions and patches open-source code while running engineering at scale.
15 years of coding experience
20 years of employment as a software developer
Master of Science - MS Computer Science and Engineering, Master of Science - MS Computer Science and Engineering at Michigan State University
Stackoverflow
18,137reputation
1.7mreached
276answers
69questions
mysql
top-5%
postgresql
top-5%
java
top-5%
activerecord
top-5%
rspec
top-5%
ruby
top-1%
Github Skills (19)
financial-data10
data-exchange10
java10
ruby10
javas10
fixprotocol10
financial-markets10
ruby-on-rails10
mysql9
postgresql9
finance9
rspec9
activerecord9
unit-testing8
activemodel6
Programming languages (13)
Github contributions (5)
quickfix-j/quickfixj
Apr 2011 - May 2013
QuickFIX/J is a full featured messaging engine for the FIX protocol. - This is the official project repository.
Role in this project:
Back-end Developer
Back-end DeveloperContributions:6 commits, 1 PR, 3 comments in 2 years 1 month
Contributions summary:Grant's contributions primarily involve enhancements and corrections to the QuickFIX/J messaging engine. They addressed issues related to session ID handling, data dictionary management, and application versioning. The user made several updates to the codebase, including changes to `DefaultDataDictionaryProvider`, `DefaultSessionFactory`, `Session`, and associated test classes. These changes indicate a focus on improving the engine's reliability, accuracy, and overall functionality for financial messaging.
fixprotocolfull-featuredfixprotocolfix-protocol
gbirchmeier/quickfix
Jun 2019 - Feb 2025
QuickFIX C++ Fix Engine Library
Contributions:5 pushes, 2 branches in 5 years 9 months
fixcppc-plus-plusquickfixfix-engine
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