Frank Szendzielarz
Founder at ApiCharge
Czechia
Summary
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SeniorFrank Szendzielarz is a founder and software engineer with roots in 1990s game development who has spent decades building business and blockchain systems across MS technology, banking, and crypto. He now leads ApiCharge, an API monetization protocol aimed at letting developers and content providers monetize services directly and enabling an AI agent economy. His open-source contributions include backend and DevOps work on Ethereum’s hive end-to-end test harness, reflecting hands-on experience with P2P protocol testing and CI infrastructure. Previously he produced cross-platform SDKs for Stellar, built a C# to AVM compiler for Algorand, and helped design settlement systems for financial institutions. Based in Czechia, he blends low-level systems expertise (assembly-era game coding) with modern blockchain tooling and a strong focus on developer enablement. An under-the-radar strength is his recurring role as a bridge between mainstream Microsoft developers and novel blockchain runtimes.
8 years of coding experience
25 years of employment as a software developer
Github Skills (8)
docker10
go10
dockers10
testing10
ethereum9
golang9
cicd8
devops8
Programming languages (14)
Github contributions (5)
ethereum/hive
Oct 2018 - Feb 2020
Ethereum end-to-end test harness
Role in this project:
Back-end & DevOps Engineer
Back-end & DevOps EngineerContributions:195 commits, 66 PRs, 136 pushes in 1 year 3 months
Contributions summary:Frank primarily contributed to the end-to-end testing infrastructure for Ethereum, specifically focusing on the Hive test harness. Their commits involved refactoring and renaming client Dockerfiles across multiple Ethereum clients to standardize the directory structure. Moreover, the user was involved in modifying the test structure of the devp2p project. In addition, they made contributions to the test results aggregator, which suggests experience with managing test runs and results.
golangend-to-endtest-harnessethereumtesting
FrankSzendzielarz/AlgorandVisualStudio
Feb 2022 - Nov 2022
Visual Studio extensions for C# TEAL compilation and Algorand Smart Contract development
Contributions:63 commits, 2 PRs, 99 pushes in 9 months
dotnetcompilationsmart-contractcontractblockchain
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