Fullstack Developer

Serhii O

Information

Available hours \ week
40 h/w
Seniority level
Middle
Years of experience
5 yrs.
Location
Ukraine, Kyiv
Nationality
Ukraine
Timezone
(GMT+02:00) Kyiv

Languages

English
Upper-Intermediate (B2)

About

Serhii is a skilled Fullstack Developer with 5 years of experience specializing in JavaScript, Node.js, and React.js. He effectively managed front-end and back-end development while ensuring robust communication with clients and delivering comprehensive unit test coverage. Having contributed to diverse projects, he adeptly resolved issues and optimized performance across platforms. Serhii holds a degree in Computer Science from the National Technical University of Ukraine 'Kyiv Polytechnic Institute'.

Experience

Tvii Lis

Software developer

About the Project

The goal of the project was to collect and provide information about investors. The service allowed users to track the investment process and communicate. The project itself was a mono repository built using Bitbucket

  • Environmental Services

Responsibilities

- Front-end and Backend development; - Communications with the client; - Investigating and fixing issues; - Providing appropriate unit test coverage for new and existing components;

Skills & technologies

Collinson

Frontend developer

About the Project

Development of a digital platform designed to enhance the travel experience at airports. The platform provided access to airport lounges, premium services, in-terminal navigation, membership management, visit history, and wellness features.

Responsibilities

- Implemented user interfaces for displaying lounge lists, premium services, and in-terminal navigation features; - Built and integrated reusable UI components with Contentful CMS to enable dynamic content management across the platform; - Integrated a digital membership card with real-time status, visit history, and usage tracking; - Contributed to wellness modules (breathing exercises, meditation, travel adaptation tips) to enrich user engagement; - Ensured high test coverage with unit and integration tests across new and existing components; - Optimized performance of critical UI flows, reducing load times and improving responsiveness; - Collaborated closely with UX/UI designers to deliver adaptive, user-friendly interfaces;

Investment Fund Website

Fullstack dev

About the Project

The goal of the project was to collect and provide information about investors. The service allowed users to track the investment process and communicate. The project was a monorepository built using Bitbucket.

  • Fintech

Responsibilities

- Front-end development; - Backend development, creating routes, services, validations, guards, etc. - Communications with the client; - Investigating and fixing issues; - Providing appropriate unit test coverage for new and existing components;

Education

National Technical University of Ukraine 'Kyiv Polytechnic Institute'

1987 - 1992
computer science