Гайда

Haida Danylo
Front-end Developer Uzhgorod, Ukraine | [відкрити контакти](див. вище в блоці «контактна інформація») | [відкрити контакти](див. вище в блоці «контактна інформація»)

LinkedIn | GitHub | Telegram: @Daniel_Haida1

SUMMARY

Results-driven Front-end Developer with over 2 years of experience building scalable web
applications. Proficient in React, Next.js, and TypeScript. Strong track record in developing
complex interfaces, from AI-powered Telegram Web Apps to healthcare SaaS platforms. Focused
on writing clean, type-safe code and delivering seamless user experiences.

CORE SKILLS

●​Languages: JavaScript (ES6+), TypeScript, HTML5, CSS3, SCSS, PHP, Ruby.
●​Frameworks & Libraries: React 19, Next.js, Redux Toolkit, React Query (TanStack), Zustand,
React Router, TanStack Router.
●​UI & Styling: Tailwind CSS, Shadcn UI, Ant Design, Material UI, Radix UI.
●​Tools & Backend: Node.js, Express, Docker, Axios, i18n, Lingui, Jest, React Testing Library.
●​Additional: PHP (Yii), Vue.js, Ruby on Rails, Shopify.

PROFESSIONAL EXPERIENCE

Appflame | Front-end Developer July 2025 – October 2025

Project: Macro Minder (Nutrition/Fitness Dashboard) LInk

●​ Developed a full-featured Telegram Web App using React 19 and TypeScript for nutrition
tracking.
●​ Implemented AI-powered food logging via photo analysis and a real-time analytics dashboard.
●​ Designed the application using TanStack Router and TanStack Query for type-safe routing and
efficient data fetching.
●​ Integrated auto-generated OpenAPI clients for robust backend communication.
●​ Designed a mobile-first UI using Tailwind CSS, Shadcn UI, and Radix UI components.

Axels | Front-end Developer September 2023 – June 2025

Project: Healthcare Tech App

●​ Engineered secure authentication flows and multi-role access systems using React , TypeScript,
and Redux Toolkit.
●​ Developed complex data management interfaces for patients and medical staff, leveraging
TanStack Table for high-performance data handling.
●​ Implemented robust form validation and dynamic UI components using React Hook Form and
Ant Design, significantly improving user data accuracy.
●​ Optimized application performance by streamlining state management and ensuring seamless
integration with backend RESTful services.

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Project: Internal Hiring Pipeline App (Internal Company Tool)

●​ Contributed to the development and maintenance of a large-scale internal hiring pipeline
application built with Next.js and TypeScript, used by multiple hiring managers.
●​ Worked on an existing configurable candidate pipeline, extending and refining custom hiring
stages and role-specific workflows.
●​ Enhanced and maintained a complex Ant Design data table with dozens of columns,
implementing and fixing advanced sorting, multi-level filtering, and exclusion-based filters.
●​ Implemented the Critical Changes feature in close collaboration with backend engineers,
surfacing business-critical updates (location changes, remote ↔ office type, country/city
changes) directly in vacancy lists and detailed modals.
●​ Integrated frontend features with an AWS-based serverless backend (Node.js, Lambda-like
architecture) using typed API clients.
●​ Improved filtering and data-handling logic, fixing edge cases and ensuring consistent behavior
across large datasets.
●​ Wrote and maintained unit tests, keeping test coverage above 80%

Confidential Company | Front-end Developer March 2023 – August 2023

●​ Microloan SaaS: Built onboarding and loan application flows featuring complex multi-step
forms using MUI and i18n for multi-language support.
●​ Course Aggregator: Developed a responsive UI with dynamic filtering and custom data hooks
using Zustand and Vite.

EDUCATION
Master's Degree in Automation and Computer-Integrated Technologies Uzhgorod National
University | 2013 – 2019

LANGUAGES
●​ English: Upper-Intermediate
●​ Ukrainian/Russian: Native