Michał Kędrzyński
Co-founder & CTO at Sigma Clinic
Warsaw, Masovian Voivodeship, Poland
Summary
🤩
Rockstar🎓
Top SchoolMichał Kędrzyński is a seasoned software leader and entrepreneur with 13 years of experience building scalable web and cloud-native systems, currently serving as Co-founder & CTO of an AI-native physician-in-the-loop digital clinic in Warsaw. He combines deep full-stack and architectural expertise—from early .NET industrial systems to leading front-end performance wins and complex multi-timezone migrations—with hands-on cloud experience at Google Cloud and contributions to notable open-source projects like Webiny’s serverless CMS. As a founder he repeatedly translates product needs into measurable results (e.g., major conversion and performance gains in e-commerce), and as a tech lead he has driven technology transitions, release practices, and strong developer workflows. Notably comfortable across frontend UX, backend APIs, and deployment tooling, he pairs pragmatic engineering with a founder’s focus on outcomes.
13 years of coding experience
11 years of employment as a software developer
Magister Automatyka, Magister Automatyka at Wydział Mechatroniki Politechniki WarszawskiejInżynier Automatyka, Inżynier Automatyka at Warsaw University of Technology
Stackoverflow
2,395reputation
269kreached
68answers
5questions
Github Skills (23)
javascript10
typescript10
typescript-types10
nodejs10
typescripts10
react10
aws9
serverless9
graphql8
wordpress-graphql8
headless-cms8
aws-lambda8
wpgraphql8
spa-template8
serverless-framework7
Programming languages (11)
Github contributions (5)
webiny/webiny-js
Dec 2021 - May 2022
Open-source serverless enterprise CMS. Includes a headless CMS, page builder, form builder, and file manager. Easy to customize and expand. Deploys to AWS.
Role in this project:
Full-stack Developer
Full-stack DeveloperContributions:85 reviews, 222 commits, 38 PRs in 5 months
Contributions summary:Michał primarily worked on enhancing the functionality and structure of the webiny-js project. They implemented features such as before and after build hooks, which expanded the project's deployment capabilities. Their contributions also involved debugging and fixing deployment-related issues, specifically those related to AWS access key IDs and profile configurations, as well as fixing errors in the CLI deploy plugin. The user also added the rerender page functionality.
cmsaws-lambdaserverlessawsmicroservice
swapnilmmane/webiny-js
Dec 2021 - Jan 2022
Platform for building serverless applications and APIs (Node.js, React, GraphQL) ⚡
Contributions:78 commits in 1 month
reactreact-graphqlserverless-applicationsnode-jsserverless
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