Piotr Ratajczak
Senior Principal Engineer - Tech Strategy & Architecture
England, United Kingdom
Summary
👤
Senior🎓
Top SchoolPiotr Ratajczak is a Senior Principal Engineer specializing in tech strategy and architecture with 13 years of experience delivering enterprise-grade Microsoft solutions and robust backend systems. He has progressed from hands-on .NET development and testing to architecting large-scale fulfilment and ticketing systems at Trainline and now shapes platform strategy at 10x Banking. Piotr emphasizes code and architectural quality, having worked across messaging, integration and persistence technologies (NServiceBus, RabbitMQ, NHibernate, SQL Server) and led teams through complex domain challenges. His academic background in computer science (M.Sc. and B.Sc. with top marks) underpins a methodical approach to design and continuous improvement. Colleagues know him for bridging deep technical craft with pragmatic architecture decisions that make mission-critical systems reliable and maintainable.
13 years of coding experience
10 years of employment as a software developer
B.Sc., Computer Science, 5.5 - highest, B.Sc., Computer Science, 5.5 - highest at Wroclaw University of Science and Technology
English, Polish, German
Github Skills (66)
python10
data-gov10
market-maker10
drupal10
php10
zenbot10
convolutional-neural-networks9
lambda9
trading9
trading-bot9
deep-learning9
serverless9
cryptocurrency9
hft9
debug9
Programming languages (7)
Github contributions (5)
ratajczak/LOB-snapshots
Mar 2020 - Nov 2022
Fetch and save Limit Order Book snapshots
Contributions:35 commits, 4 PRs, 30 pushes in 2 years 8 months
limit-orderorder-booksnapshotslimit-order-bookfetch
datagovuk/shared_dguk_assets
Nov 2013 - Sep 2016
Contributions:153 commits, 21 PRs, 11 pushes in 2 years 10 months
assetsdrupalckan
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