Ярослав

YAROSLAV
NUZHNENKO
Full Stack Engineer

D E TA I L S

[відкрити контакти](див. вище в блоці «контактна інформація»)
[відкрити контакти](див. вище в блоці «контактна інформація») (Telegram)
PROFILE

Experienced in building scalable web apps and delivering high-quality user experiences. Specializing in React,
React Native, TypeScript, Next.js, Firebase, and modern front-end libraries. Worked on both long-term
enterprise systems and fast-paced startup products.

Tech Stack: React, Redux, Typescript, Next.js, Zustand, Firebase, GraphQl, Node.js, NestJS, PostgreSQL,
MongoDB, WebSockets.
Strengths: API integration, cross-functional collaboration, clean architecture, maintainability.

Currently seeking a full-time remote role with a modern stack, technical challenges, and a strong team culture.

E M P LOY M E N T H I S TO R Y

Full-Stack JavaScript Developer, FFAIR
FEBRUARY 2021 — PRESENT

Key Responsibilities:

• Developed and maintained a task management platform initially on Firebase
• Designed front-end (React, Typescript) and back-end architecture
• Migrated core functionality from Firebase to NestJS backend for better scalability
• Design, develop, and maintain a marketplace UI built with Next.js.

Front-end Developer, Axon, Kiev
NOVEMBER 2019 — DECEMBER 2020

Key Responsibilities:

• Developed a subscription-based React application using TypeScript and custom state management
• Implemented secure and seamless Stripe payment integration
• Collaborated closely with cross-functional teams and Product Owner to align with business goals

Front-end Developer, Webbylab, Kiev
O C TO B E R 2 0 1 8 — O C TO B E R 2 0 1 9

Key Responsibilities:

• Built a React + Redux application from scratch with scalable, clean architecture
• Developed a custom document rendering solution with cross-browser support on pure React
• Maintained and optimized a GraphQL-based application (schemas, queries)
• Created a dynamic page generation system for a banking platform
 MAIN RESPONSIBILITIES

• Developed scalable frontend architecture using React, Next.js, Redux Toolkit, and Zustand
• Built and maintained production-ready applications with Next.js App Router, SSR/ISR, and dynamic routing
• Integrated and optimized GraphQL queries and schemas for real-time data fetching
• Designed and implemented UI/UX using TailwindCSS, Material UI, and custom design systems
• Designed and developed backend services with NestJS, Node.js, and Firebase, leveraging PostgreSQL for
structured data persistence.
• Configured efficient build systems using Webpack, Vite, and Babel
• Applied performance optimization techniques: lazy loading, code splitting, caching, and prefetching
• Followed clean architecture principles for better maintainability and testability

ADDITIONAL RESPONSIBILITIES

• Integrated third-party services (e.g. Stripe, SendGrid, Google Maps) for extended functionality
• Set up CI/CD pipelines using GitHub Actions and deployed to Google Cloud, Vercel, and Firebase Hosting
• Wrote reusable components with Storybook and ensured accessibility (a11y) and internationalization
(i18n)
• Built cross-platform mobile apps using React Native (iOS & Android) with shared business logic
• Maintained high code quality through code reviews, unit testing (Jest), and E2E testing
(Playwright/Cypress)
• Collaborated with cross-functional teams: designers, product managers, QA, and backend developers
• Regularly communicated with clients and stakeholders to gather requirements and provide updates

E D U C AT I O N

Bachelor of Computer knowledge, Kyiv State University of Telecommunications, Kiev
S E P T E M B E R 2 0 1 8 — M AY 2 0 2 0

Junior Specialist of Software development, Kyiv Hotel Management College, Kiev
S E P T E M B E R 2 0 1 4 — M AY 2 0 1 8

L A N G UAG E S

Ukrainian English

Czech

LINKS

Telegram