Olena

OLENA SAVYTSKA
FRONTEND DEVELOPER

[open contact info](look above in the "contact info" section) | [open contact info](look above in the "contact info" section) | Kyiv, Ukraine
LinkedIn | GitHub | Portfolio

SUMMARY
Frontend Developer with 3+ years of commercial experience building production web applications with React,
Next.js and TypeScript. Experienced in SaaS platforms, admin dashboards, Telegram Mini Apps, browser
extensions and marketing websites. Strong in reusable architecture, responsive UI, API integration and
performance optimization. Currently expanding AI expertise through personal projects with LLM APIs, AI
agents and workflow automation.

SKILLS
Frontend: JavaScript (ES6+), TypeScript, React, Next.js (App Router), HTML5, CSS3, SCSS
UI & Styling: Tailwind CSS, Material UI, shadcn/ui, Framer Motion, Responsive Design, Accessibility
State & Data: Zustand, Redux Toolkit, TanStack Query, REST APIs
Forms & Auth: React Hook Form, Zod, NextAuth, OAuth 2.0
Architecture: Component-Based Architecture, Frontend Architecture, i18n, RTL
AI & Tools: LLM APIs, AI Agents, AI-assisted Development, Git, GitHub, Figma, Jira, ClickUp

EXPERIENCE
Frontend Developer | Freelance
Apr 2025 - Present
- Delivered production-ready web applications and marketing websites using React, Next.js and
TypeScript, working directly with clients across the full development lifecycle.
- Built responsive interfaces from Figma using reusable components, dynamic forms, SEO-friendly
solutions and accessibility best practices.
- Implemented client-side caching with 30-minute TTL, reducing redundant API requests by
approximately 70%.
- Improved performance through code splitting, lazy loading, image and bundle optimization, achieving
99+ Lighthouse Performance and reducing page load time from ~8s to ~1s.
- Integrated REST APIs, multilingual interfaces and AI-assisted development tools such as Claude Code.
Tech: React, Next.js, TypeScript, Tailwind CSS, SCSS, Vite, Zustand, TanStack Query, React Hook Form,
Zod, Framer Motion, i18n, Git

Frontend Developer | VERV Digital
Mar 2023 - Mar 2025
- Developed and maintained production React applications from feature planning through release,
collaborating with backend, QA, designers and product teams.
- Built a customer-facing SaaS platform and internal admin dashboard with filtering, search, pagination
and data management.
- Developed a Telegram Mini App with MetaMask wallet integration and authentication, supporting
blockchain-related user flows.
- Integrated REST APIs and managed server state with React Query; refactored legacy modules and
implemented new features while preserving existing business logic.
- Created reusable UI components, forms, tables and shared utilities, improving consistency and
development efficiency.
Tech: React, TypeScript, Tailwind CSS, MUI, Redux Toolkit, React Query, React Hook Form, REST APIs,
GitHub, ClickUp, i18n

EDUCATION
MSc Ecology | Donetsk National Technical University 2004 - 2010
Frontend Development (Basic and Pro) courses | Hillel IT School 2022 - 2023
Additional: JavaScript Course (Udemy) | Tech English (English for IT) | Node.js Essential (ITVDN)

Languages: English - B1 (Intermediate), Ukrainian - Native