Mariusz Serek
Head Of Developer Relations
Holy Cross Voivodeship, Poland
Summary
🤩
RockstarMariusz Serek is a seasoned blockchain engineer and developer-relations leader with nine years of hands-on experience building and advocating for decentralized applications. As Head of Developer Relations at Lisk and Lightcurve, he blends deep backend expertise—having improved core SDK performance by replacing js-nacl with sodium and extending key API endpoints—with a talent for making blockchain tooling accessible to developers. He started as a lead backend developer driving Lisk’s JS SDK and consensus-facing features, and now focuses on developer experience, documentation, and community growth. Based in Poland, he pairs a pragmatic engineering mindset with a passion for cryptocurrencies and mining, often contributing practical optimizations to open-source projects.
9 years of coding experience
3 years of employment as a software developer
Polish, English
Github Skills (7)
api10
back-end-development10
apidoc10
blockchain10
cryptography9
postgresql9
nodejs9
Programming languages (7)
Github contributions (5)
LiskArchive/lisk-sdk
Nov 2016 - Jul 2019
🔩 Lisk software development kit
Role in this project:
Back-end Developer
Back-end DeveloperContributions:1055 commits, 146 PRs, 369 pushes in 2 years 7 months
Contributions summary:Mariusz has made significant contributions to the Lisk software development kit, focusing on the back-end logic and API endpoints. Their work involved implementing features to the /api/transactions/get endpoint to display added and deleted delegate votes. In addition, they extended the API by adding the /api/delegates/getNextForgers endpoint. They also performed the replacement of js-nacl with a sodium library which lead to overall network performance improvement.
development-kittypesciptjavascriptblockchainframework
4miners/lisk-explorer
Oct 2016 - Mar 2018
Contributions:10 PRs, 199 pushes, 56 branches in 1 year 5 months
ethereumblockchainliskcryptocurrencyblockchain-explorer
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