Przemyslaw Rzad
DevOps Engineer at vlayer Labs
Warsaw, Masovian Voivodeship, Poland
Summary
🤩
Rockstar🎓
Top SchoolPrzemyslaw Rzad is a DevOps Engineer with a decade of experience building and maintaining blockchain and web3 infrastructure from Warsaw. He blends backend and DevOps expertise—improving CI/CD, license compliance, and maintainability—gained while contributing to high-profile projects like Parity’s Polkadot SDK and the polkadot-js apps UI. His background spans full-stack dApp work and smart contract testing (Waffle, useDApp), where he implemented library linking, refined event handling, and improved precision in front-end graphs. He has held engineering roles across Parity, TrustToken, and ETHWORKS and now focuses on operational excellence at vlayer Labs. Known for pragmatic refactors and tooling that prevent future issues, he often tackles non-obvious quality gaps such as license automation and multi-event test recognition. Trained at Warsaw University of Technology, he pairs solid academic foundations with hands-on open-source impact.
10 years of coding experience
8 years of employment as a software developer
Master’s Degree Computer Science, Master’s Degree Computer Science at Warsaw University of Technology
Polish, English, German
Github Skills (24)
hardhat10
substrate10
github-ci10
javascript10
solidity10
testing10
typescript10
ui-design10
cicd10
daap10
polkadot-js10
chai10
ethereum10
typescript-types10
blockchain10
Programming languages (13)
Github contributions (5)
TrueFiEng/useDApp
Feb 2021 - Dec 2022
Framework for rapid Dapp development. Simple. Robust. Extendable. Testable
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:425 reviews, 185 commits, 216 PRs in 1 year 10 months
Contributions summary:Przemyslaw primarily focused on developing the frontend for the DApp, implementing features related to chain calls and block metadata. They added dependencies, ported the useChainCalls functionality, and included example usages. Additionally, they worked on creating and integrating a high-level test for the useBlockNumber hook. Further work involved refactoring and renaming various components, adding examples for embeddable components and providing styling adjustments.
reactdapp-developmentdappethereumblockchain
TrueFiEng/Waffle
Oct 2018 - Jan 2023
Library for writing and testing smart contracts.
Role in this project:Full-stack Developer
Full-stack DeveloperContributions:77 reviews, 65 commits, 137 PRs in 4 years 3 months
Contributions summary:Przemyslaw primarily contributed to the `waffle` library, focusing on smart contract testing. Their work involved implementing library linking functionality, crucial for testing Solidity libraries within smart contracts. They also addressed a bug related to event emission and added the capability to recognize multiple event emissions with different arguments. Further contributions included improvements to error reporting and the addition of integration tests, along with necessary code modifications to integrate with a new version of Ganache.
ethereumtestingsoliditysmart-contractscontracts
Find and Hire Top DevelopersWe’ve analyzed the programming source code of over 60 million software developers on GitHub and scored them by 50,000 skills. Sign-up on Prog,AI to search for software developers.