Denys

[open contact info](look above in the "contact info" section)

DENYS HOLEI @ianimeden
[open contact info](look above in the "contact info" section)
Frontend Developer
LinkedIn
Chernivtsi, Ukraine

Summary Skills
Frontend Developer with 5 years of commercial experience in Next.js TypeScript Jest
frontend development. I focus on building reliable user
Tailwind React Query Redux
interfaces, writing clean and maintainable code, and working
with complex web layouts. Experienced in setting up clean Zustand React Rest API
API integrations, handling application state, and refactoring
legacy systems to improve performance. Looking to join a
team where I can take full ownership of the frontend, build Interests
scalable architecture from scratch, and deliver clean, high-
Gaming Puzzle Solving
performance user experiences.
Collecting Cards Baking
Experience
React Front End Developer Oct / 2021 - August / 2026 Strengths
Quant Azimuth Flexible Resilient
Developed and optimized scalable frontend applications
Dedicated Self-motivated
with React and TypeScript, focusing on high performance
and smooth user experience.

Built modular UI component libraries and shared design Languages
systems using Tailwind CSS to speed up the development
of new features.
English(B2)
Developed interactive analytical dashboards for data rich
Ukrainian(Native)
applications, using advanced visualization tools to
present structured datasets clearly.

Built high performance data tables and complex catalog Education
interfaces with advanced server side filtering, sorting,
Master’s Degree in Software
and pagination.

Engineering from Yuriy Fedkovych
Handled complex user workflows, multi step wizards, and Chernivtsi National University,
dynamic client side data validation.

Ukraine.
Integrated backend services using Axios and React
Query, optimizing data fetching and API request caching.
Achievements
Managed complex application states with Redux and
React hooks, keeping the architecture predictable and Accelerated new feature
maintainable.
delivery by 30% across the
Covered core logic and interactive UI components with team by architecting a custom
unit tests using Jest to ensure high code quality.
UI component library from
Collaborated closely with backend developers and scratch.

product managers to plan system architecture and Improved web vitals and
maintain good security practices.
rendering speeds by 40% when
Implemented multi language support and localization handling complex datasets.

tools across global market applications. Refactored a massive legacy
codebase which decreased the
production bug rate by 25%
and improved system stability.