Alexandru Gheorghe
Software Engineer at Amazon
Santa Monica, California, United States
Summary
🤩
Rockstar🎓
Top SchoolAlexandru Gheorghe is a software engineer with seven years of experience building reliable, high-performance backend systems, currently based in Santa Monica and working at Amazon. He has a strong Rust pedigree demonstrated by contributions to the Parity Polkadot SDK where he improved performance, stability, threading, memory profiling, and logging for critical blockchain subsystems. His Amazon tenure includes progressive roles across AWS and Amazon engineering teams, blending hands-on development with short-term leadership responsibilities. Alexandru excels at diagnosing hard-to-reproduce issues in distributed systems and turning those fixes into lasting robustness improvements. He holds a Computer Science degree from University POLITEHNICA of Bucharest and brings a pragmatic, tool-oriented approach to large-scale, production-critical codebases.
7 years of coding experience
7 years of employment as a software developer
POLITEHNICA București National University for Science and Technology
Github Skills (7)
rust10
performance-optimization10
blockchain10
metric10
concurrency9
testing9
error-handling9
Programming languages (7)
Github contributions (5)
paritytech/polkadot-sdk
Aug 2023 - Apr 2025
The Parity Polkadot Blockchain SDK
Role in this project:
Back-end Developer
Back-end DeveloperContributions:498 reviews, 180 PRs, 547 pushes in 1 year 7 months
Contributions summary:Alexandru primarily focused on improving the performance, stability, and reliability of the Polkadot Blockchain SDK by addressing several issues related to the approval-voting and approval-distribution subsystems. Contributions included optimizing code, fixing bugs related to node restarts and duplicate messages, refactoring code to run certain processes on separate threads, and improving the robustness of the codebase. The user also added memory profiling support and enhanced logging for debugging and diagnostic purposes.
blockchaincumuluspolkadotsubstrate
alexggh/polkadot
May 2023 - Aug 2023
Polkadot Node Implementation
Contributions:89 pushes, 14 branches in 3 months
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