Piskarov Oleksii
Fullstack & React Frontend Developer
Kyiv, Ukraine
Professional Summary
Developer with over 5 years of experience building scalable, responsive web
applications. With a strong fullstack background and a recent focus on React and React
Native frontend development, I excel at designing modern user interfaces and
collaborating with cross-functional teams to deliver high-quality digital solutions.
Core Skills & Technologies
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Languages: JavaScript, TypeScript
Frontend: React, Next.js, React Native, SASS, WebGL, Three.js
Backend: Node.js, ExpressJS, NestJS, GraphQL, Fastify, Postgres, Mongo
Tools & Platforms: Docker, Webpack, Socket.io, Pixi.js, Stripe API, Heroku,
Google cloud platform, Google play, Digital Ocean, AWS, Copilot, OpenAI.
● Other: Unit Testing, CI/CD pipelines
Professional Experience
React, React Native Frontend Developer – Savvyy LLC
October 2022 – Present (3 years)
● Develop and maintain responsive, high-performance web interfaces using React
and React Native.
● Collaborate with UI/UX teams to translate design concepts into interactive
applications.
● Optimize code for speed and scalability while ensuring cross-browser
compatibility.
● Integrate with backend services and APIs to deliver dynamic, data-driven
experiences.
Full Stack Developer, CTO (part-time) – Activechat
May 2022 – February 2025
● Developed and deployed microservices for a chat-botting platform using
TypeScript, Node.js, React, MongoDB, ExpressJS, and Stripe API.
● Worked in a collaborative team environment to enhance the platform’s scalability
and feature set.
Full Stack Developer – Anywear
June 2020 – February 2022
● Built a full stack application focused on maintaining 3D content in the browser
using React, Next.js, GraphQL, Three.js and NestJS.
● Led front-to-back integration efforts to ensure seamless performance and user
experience.
Full Stack Developer – Coelix
August 2018 – May 2020
● Contributed to an Israel-based medical startup by developing a chat module and
other web services using Express, Docker, Webpack and Websockets.
● Played a key role in adopting a microservices architecture and implementing unit
tests for critical features.
Education
Electronic Engineer
National Aviation University | September 2008 – June 2014
Languages
● Ukrainian: Native
● Russian: Native
● English: Upper-Intermediate
