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Oleksandra H.

Oleksandra H.

Frontend Developer

Verified expert

middle
Ukraine
$30/hour
English – Advanced
Ukrainian – Native
Top skills
React TS NextJS Redux RTK Query Tailwind CSS PostgreSQL WebSockets Docker Material UI
Oleksandra H.
Frontend Developer

Verified expert

native
Ukraine
$30/hour
English – Advanced
Ukrainian – Native

Meet Oleksandra ✨

A Frontend Developer with 3.5 years of experience building complex, data-intensive web applications using React and TypeScript across healthcare, AI, and CRM domains. Oleksandra specializes in developing high-performance interfaces for dashboards, real-time collaborative features, and applications that handle large datasets and deep-zoom medical imaging.

She has delivered production platforms including a digital pathology system with deep-zoom slide viewing and real-time collaborative annotations via Socket.IO, an enterprise AI NLP platform with analytical dashboards and data visualization for sentiment analysis and business intelligence, and a CRM dashboard with task management, role-based access control, and interactive real-time statistics.

Oleksandra brings strong expertise in scalable frontend architecture, state management with Redux Toolkit and RTK Query, and integration with rich UI component libraries like Material UI, Shadcn, Syncfusion, and Fluent UI. She maintains high code quality through reusable components, testing, and modern development practices including code reviews and cross-functional collaboration.

If you need a frontend developer who can translate complex business and domain requirements into performant, intuitive user interfaces with clean architecture and reliable code, Oleksandra is ready to deliver results from day one 🚀

Download the CV

Hard skills

JavaScript

TypeScript

React

Next.js

Redux

Redux Toolkit

Zustand

RTK Query

React Query

Axios

React Hook Form

Formik

Joi

Yup

Zod

Express

NestJS

TypeORM

Material UI

Hero UI

Fluent UI

Syncfusion

Chart.js

Tailwind CSS

Shadcn

OpenSeadragon

Annotorious

WebSockets

Socket.IO

REST APIs

SQL

PostgreSQL

MySQL

SQLite

Redis

MongoDB

Firebase

Docker

GitHub Actions

HTML5

CSS3

Vite

Tools

Git

GitHub

Azure

Postman

Jest

Storybook

VS Code

Cursor

Recharts

Soft skills

Attention to detail

Problem solving

Communication

Team collaboration

Adaptability

Ownership

Code quality focus

Continuous learning

Digital Pathology Slide Viewer and Annotation Platform

Frontend Developer
Duration:

1.5 years

Domains:
Healthcare Technology Digital Pathology Medical Imaging
Project Description:

Developed complex frontend features for a digital pathology platform enabling pathologists to review, annotate, and collaborate on high-resolution whole slide images. Implemented deep-zoom slide viewing with OpenSeadragon and custom annotation tools, built real-time collaboration with Socket.IO, and optimized performance for large images and heavy annotation data.

Tools & Technologies:

TypeScript, React, Vite, Redux Toolkit, RTK Query, Material UI, Socket.IO, OpenSeadragon, Annotorious, React Hook Form, Zod, PostgreSQL, Redis, Docker

AI SaaS Platform for Natural Language Understanding

Frontend Developer
Duration:

1 year

Domains:
AI & Machine Learning NLP Data Analytics
Project Description:

Developed a standalone Survey Service microservice with Next.js including form builder, CRUD flows, and response collection. Built analytical dashboards and data visualization features for NLP insights, and established unit testing with Jest and component documentation with Storybook.

Tools & Technologies:

TypeScript, React, Next.js, Redux Toolkit, RTK Query, Tailwind CSS, Material UI, Ant Design, PostgreSQL, Jest, Storybook, Postman

CRM Dashboard & Team Management Platform

Frontend Developer
Duration:

1 year

Domains:
CRM Systems Data Visualization
Project Description:

Built responsive, interactive user interfaces for a CRM and project management dashboard with real-time statistics, task lifecycle management, and role-based access control. Implemented dynamic dashboards with charts and tables using Syncfusion, Fluent UI, and Chart.js, and optimized frontend performance through code splitting and memoization.

Tools & Technologies:

React, TypeScript, Redux, Context API, REST API, Chart.js, Recharts, Syncfusion, Fluent UI, Ant Design, Git, Docker

Bachelor's Degree in Ecology

National University of Kyiv-Mohyla Academy

Full Stack Web Developer Course

Provider: GoIT

Full Stack Web Developer Course

Provider: GoIT

Meet Oleksandra ✨

A Frontend Developer with 3.5 years of experience building complex, data-intensive web applications using React and TypeScript across healthcare, AI, and CRM domains. Oleksandra specializes in developing high-performance interfaces for dashboards, real-time collaborative features, and applications that handle large datasets and deep-zoom medical imaging.

She has delivered production platforms including a digital pathology system with deep-zoom slide viewing and real-time collaborative annotations via Socket.IO, an enterprise AI NLP platform with analytical dashboards and data visualization for sentiment analysis and business intelligence, and a CRM dashboard with task management, role-based access control, and interactive real-time statistics.

Oleksandra brings strong expertise in scalable frontend architecture, state management with Redux Toolkit and RTK Query, and integration with rich UI component libraries like Material UI, Shadcn, Syncfusion, and Fluent UI. She maintains high code quality through reusable components, testing, and modern development practices including code reviews and cross-functional collaboration.

If you need a frontend developer who can translate complex business and domain requirements into performant, intuitive user interfaces with clean architecture and reliable code, Oleksandra is ready to deliver results from day one 🚀

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