Mariela Kasovska
Engineering Manager Payments Self-service at SumUp
Bulgaria
Summary
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Rockstar🎓
Top SchoolMariela Kasovska is an Engineering Manager with 11 years of experience who leads cross-functional teams at SumUp to deliver merchant-focused payments self-service, receipts, reporting and public APIs. She began her career as a front-end engineer and remains hands-on with React and design-system work—contributing to SumUp’s Circuit UI by improving accessibility, formats and complex components. Known for blending technical design leadership with people-first management, she drives architecture and delivery while coaching engineers, running talent reviews and shaping product discovery. Her background includes migrating legacy flows to modern React platforms and building scalable onboarding and reporting features that materially improved merchant transparency. Based in Bulgaria, she balances analytical interests in psychology with an adventurous streak—recently taking up kitesurfing.
11 years of coding experience
7 years of employment as a software developer
Mathematics and Information technologies, Mathematics and Information technologies at 91. German School of SofiaBachelor's degree Computer Systems and Technologies in German, Bachelor's degree Computer Systems and Technologies in German at Technical University of SofiaOne Year Program Graduate Computer Software Engineering, One Year Program Graduate Computer Software Engineering at Telerik Academy
English, German
Stackoverflow
1reputation
0reached
0answers
0questions
Github Skills (14)
system10
css10
javascript10
react-components10
component-library10
system-design10
carbon-design-system10
sys10
react10
react-component10
storybook9
typescript4
typescripts4
typescript-types4
Programming languages (2)
Github contributions (5)
sumup-oss/circuit-ui
Jul 2018 - Apr 2020
SumUp's design system for the web
Role in this project:
Front-end Developer
Front-end DeveloperContributions:9 commits, 17 PRs, 41 pushes in 1 year 9 months
Contributions summary:Mariela primarily contributed to the user interface components of the design system. Their work included adding missing number formats and currencies, implementing error styles for the Select component, adding condensed styles and vertical scroll to the Table component, and refactoring the AutoCompleteTags component. These changes improved the UI's functionality, accessibility, and overall user experience within the SumUp design system.
reactsumupcircuit-uidesign-systemreact-components
marielakas/todos-postcss-themes
Oct 2016 - Oct 2016
Contributions:21 commits, 22 pushes, 1 branch in 2 days
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