Yurii Vasylchuk
Frontend Engineer with 4+ years of experience in React and TypeScript, with a full-stack background. Specializes in improving developer experience and solving complex product and architectural challenges. Product-oriented, owning features end-to-end from cross-functional discussions through delivery.
Frontend Engineer at
OTAKOYI
Aug 2024 - Present
- Owned frontend architecture that unified cross-product permissions and 3 B2B license models into a single infrastructure, enabling engineers to build features without touching complex business logic.
- Designed a shared API proxy layer to standardize communication with a legacy backend, improving validation, logging, and error handling, reducing the average endpoint implementation from 150+ to ~20 lines of code.
- Led the UI framework migration by implementing a shared CSS-in-JS cache provider, enabling both frameworks to coexist during an incremental rollout across 3 frontend teams.
Frontend Engineer at
OTAKOYI
Aug 2024 - Present
- Owned frontend architecture that unified cross-product permissions and 3 B2B license models into a single infrastructure, enabling engineers to build features without touching complex business logic.
- Designed a shared API proxy layer to standardize communication with a legacy backend, improving validation, logging, and error handling, reducing the average endpoint implementation from 150+ to ~20 lines of code.
- Led the UI framework migration by implementing a shared CSS-in-JS cache provider, enabling both frameworks to coexist during an incremental rollout across 3 frontend teams.
Full-Stack Engineer at
Lumitech
Jul 2023 - Aug 2024
- Designed a custom, fully accessible UI kit (WCAG, ARIA) with 20+ components for an internal system of a leading identity verification platform, later reused across multiple other applications.
- Built an AI chat layout, leading API contract decisions, implementing bidirectional pagination, voice messaging, and optimistic updates while maintaining high performance.
- Developed an analytics dashboard with complex visualizations (D3.js, Recharts, TanStack Table), processing and transforming large datasets to power dynamic, interconnected views.
- Completed a Google CASA security audit within a strict 2-week deadline, preventing vulnerabilities that could expose sensitive user data and source maps.
Full-Stack Engineer at
Lumitech
Jul 2023 - Aug 2024
- Designed a custom, fully accessible UI kit (WCAG, ARIA) with 20+ components for an internal system of a leading identity verification platform, later reused across multiple other applications.
- Built an AI chat layout, leading API contract decisions, implementing bidirectional pagination, voice messaging, and optimistic updates while maintaining high performance.
- Developed an analytics dashboard with complex visualizations (D3.js, Recharts, TanStack Table), processing and transforming large datasets to power dynamic, interconnected views.
- Completed a Google CASA security audit within a strict 2-week deadline, preventing vulnerabilities that could expose sensitive user data and source maps.
Full-Stack Mentor at
Mate Academy (Part-Time)
Jun 2023 - Aug 2024
- Mentored trainees by reviewing pull requests and conducting technical Q&A sessions, helping them improve code quality and adopt engineering practices, leading to higher job placement rates.
Full-Stack Mentor at
Mate Academy (Part-Time)
Jun 2023 - Aug 2024
- Mentored trainees by reviewing pull requests and conducting technical Q&A sessions, helping them improve code quality and adopt engineering practices, leading to higher job placement rates.
Frontend Engineer at
DevelopsToday
Jan 2022 - Jun 2023
- Independently maintained a React Native finance application, focusing on the successful release of version 2.0, which increased active users by 25% and reduced bug reports by 17%.
- Contributed to the development of a digital accounting application using React, React Context, and Bootstrap.
Frontend Engineer at
DevelopsToday
Jan 2022 - Jun 2023
- Independently maintained a React Native finance application, focusing on the successful release of version 2.0, which increased active users by 25% and reduced bug reports by 17%.
- Contributed to the development of a digital accounting application using React, React Context, and Bootstrap.
Professional Resume
Explore my professional background, experience, and technical expertise. My CV highlights a track record of delivering impactful software solutions, leading projects from concept to launch, and collaborating with teams to achieve ambitious goals. You can download a PDF copy to review my work history, skills in detail, or reach out directly via email for collaborations, opportunities, or further information.