Kamil Wasilewski
@kamilwasilewski
Senior Frontend Developer specializing in React and TypeScript, building scalable, user-focused web experiences.
PolandWhat I'm looking for
I am a Senior Frontend Developer with extensive experience building reusable component libraries, payments UIs, and consumer-facing product features using TypeScript, React and MaterialUI. I have led implementations of end-to-end experiences—onboarding, financing dashboards, in-app purchases—and collaborated closely with backend, product and design teams to deliver production-ready solutions.
Throughout my career I contributed to company design systems, integrated third-party payment providers, improved app stability and performance, and mentored learners as a bootcamp instructor. I combine strong UI engineering skills with pragmatic API collaboration to ship reliable, user-centered interfaces.
Experience
Work history, roles, and key accomplishments
Senior Frontend Developer
Housecall Pro
Jan 2023 - Sep 2025 (2 years 8 months)
Developed a reusable, provider-agnostic payments UI library and implemented full Consumer Financing and in-app purchase experiences, improving payment integrations and enabling direct card reader orders through the platform.
SGBuilt application interfaces with TypeScript, React and MaterialUI, designed and implemented RESTful APIs, and delivered UX improvements and performance/stability enhancements for client-facing products.
Teacher
infoShare Academy
Jan 2021 - Dec 2022 (1 year 11 months)
Delivered instruction for a Junior C# Developer bootcamp, mentoring students on C# fundamentals and practical development skills.
Software Developer
IHS Markit
Mar 2018 - Mar 2022 (4 years)
Developed React and MaterialUI web-based Excel plugins and expanded data platform infrastructure while delivering custom features for internal customers to improve productivity and data workflows.
Software Developer
Honeti Interactive
Oct 2014 - Feb 2018 (3 years 4 months)
Created applications, games, and websites across Android, iOS, PC and web platforms for external clients, delivering cross-platform projects end-to-end.
Education
Degrees, certifications, and relevant coursework
GTGdańsk University of Technology
Engineer, Computer Science and Computer Engineering
2009 - 2014
Completed studies in Computer Science and Computer Engineering at the Faculty of Electronics, Telecommunications and Informatics from 2009 to 2014.
Tech stack
Software and tools used professionally
Availability
Location
PolandAuthorized to work in
Job categories
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