Maciej Baj
Founder at t3rn
Warsaw Metropolitan Area Poland
Summary
🤩
Rockstar🎓
Top SchoolMaciej Baj is a founder and seasoned software engineer with 11 years of experience building blockchain platforms and distributed systems from Warsaw. He led development at Lisk—driving core architecture, SDK development, and test automation—and now builds t3rn, a Polkadot-focused hosting platform for trustless, interoperable smart contract execution. Hands-on across backend, testing and product ownership, he has deep experience validating block processing, transaction handling, and WebSocket transport layers for widely used open-source blockchain tooling. His background includes performance-focused web engineering at Nokia and early embedded/C++ work in smart energy, reflecting a practical blend of low-level systems thinking and product-driven architecture.
11 years of coding experience
5 years of employment as a software developer
Master's degree Computer Science, Master's degree Computer Science at Wrocław University of Science and Technology
Github Skills (11)
unit-testing10
javascript10
nodejs10
functional-testing10
test-automation10
testing10
client-websocket9
websocket-client9
websocket9
websockets-client9
blockchain8
Programming languages (5)
Github contributions (5)
LiskArchive/lisk-sdk
Jan 2017 - Jul 2019
🔩 Lisk software development kit
Role in this project:
Back-end Developer & Test Automation Engineer
Back-end Developer & Test Automation EngineerContributions:36 releases, 2166 commits, 680 PRs in 2 years 7 months
Contributions summary:Maciej primarily contributed to unit and functional tests, focusing on the validation of various functionalities within the Lisk SDK, particularly related to block processing and transaction handling. The user also implemented tests for the new WS transport layer, including handshake and data transfer. Furthermore, the user was responsible for adapting existing tests to work with the latest code updates, including refactoring tests to align with changes in the framework.
development-kittypesciptjavascriptblockchainframework
MaciejBaj/author-detection
Nov 2015 - May 2016
Contributions:17 commits, 17 pushes, 1 branch in 6 months
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