Aristid Breitkreuz
Senior C Developer at Optiver
Amsterdam, North Holland, Netherlands
Summary
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Rockstar🎓
Top SchoolAristid Breitkreuz is a Senior C Developer with 21 years of software experience, currently designing and deploying high-throughput C++ option-pricing systems and central data infrastructure at Optiver in Amsterdam. He combines low-latency trading systems expertise with close collaboration across traders, researchers and engineers to deliver production-critical financial software. Beyond finance, he contributes to open-source Haskell testing for the well-known lens library, strengthening correctness through focused test automation and doctests. Trained in business and economics, Aristid brings a pragmatic, cross-disciplinary perspective to system design and a proven track record of turning complex quantitative requirements into reliable, high-performance implementations.
21 years of coding experience
9 years of employment as a software developer
Diplom, Wirtschaftswissenschaften (Business & Economics), Diplom, Wirtschaftswissenschaften (Business & Economics) at Universität UlmHigh school, High school at Gymnasium Ulm-Wiblingen
English, German, Dutch
Stackoverflow
93reputation
493reached
0answers
1question
Github Skills (12)
lenses10
haskell10
testing10
quickcheck9
algorithms6
algorithm6
data-structures6
datastructures-algorithms6
assembly6
icc6
x86-646
data-structure6
Programming languages (11)
Github contributions (5)
ekmett/lens
Dec 2012 - Jan 2013
Lenses, Folds, and Traversals - Join us on web.libera.chat #haskell-lens
Role in this project:
QA Engineer / Test Automation Engineer
QA Engineer / Test Automation EngineerContributions:12 commits in 1 month
Contributions summary:Aristid primarily focused on writing and modifying tests for the `lens` library. Their contributions included adding new test cases for prisms and iso components, improving test coverage, and adding tests for Traversal laws, ensuring the correctness and reliability of the library's functionality. They added doctests for the Data.Vector.Lens module, demonstrating focus on testing various aspects of the lens library and its features. This work ensures the library's correctness.
haskell
aristidb/sequential-index
Feb 2011 - Jan 2013
Contributions:32 commits in 1 year 11 months
containersindexhaskellsequentialindex-numbers
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