Jan Wozniak
Software Engineer at Kedify
Wrocław, Lower Silesian Voivodeship, Czechia
Summary
🤩
Rockstar🎓
Top SchoolJan Wozniak is a software engineer with nine years of experience building and operating cloud-native and backend systems across startups and enterprises. He has held SRE and engineering leadership roles at companies like DDEV, Cisco, Kubermatic (Engineering Team Lead), and currently develops at Kedify, blending hands-on coding with operational reliability. His background spans low-latency application development, site reliability, and team leadership, underpinned by a Master's in Computer Graphics and Multimedia from Brno University of Technology. An active open-source contributor, Jan has worked on CosmWasm, refactoring and migrating contract-checking functionality toward a cleaner cw-check-contract package—showing a focus on maintainability in blockchain tooling. Based in Wrocław and with a cross-border career in Central Europe, he brings pragmatic engineering trade-offs and a taste for evolving legacy code into structured, reusable components. Colleagues describe him as a practical problem-solver who prefers shipping durable solutions over clever one-offs.
9 years of coding experience
9 years of employment as a software developer
Master's Degree, Computer Graphics and Multimedia, Master's Degree, Computer Graphics and Multimedia at Brno University of Technology
Github Skills (6)
rust10
rust-wasm10
cosmwasm10
blockchain9
smart-contracts9
cicd4
Programming languages (6)
Github contributions (5)
CosmWasm/cosmwasm
Aug 2022 - Aug 2022
Framework for building smart contracts in Wasm for the Cosmos SDK
Role in this project:
Back-end Developer
Back-end DeveloperContributions:9 reviews, 16 commits, 14 PRs in 1 day
Contributions summary:Jan's commits primarily focus on refactoring and deprecating existing functionality related to contract checking within the `cosmwasm-vm` package. They added deprecation messages in the `check_contract.sh` and `check_contract.rs` files, indicating the removal of the deprecated features. Furthermore, the user implemented a new `cw-check-contract` package, migrating the functionality from the deprecated `check_contract` example. This suggests a focus on code maintainability and a transition to a new, more structured implementation.
smart-buildingrustcosmos-sdkblockchainsdk
CosmWasm/sylvia
Aug 2022 - Jan 2023
CosmWasm smart contract framework
Contributions:253 reviews, 264 commits, 380 PRs in 5 months
smart-contractethereumcontractblockchainsolidity
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