Fullstack Engineer
Rostyk Z.
Available hours \ week
20 - 30 h/w
Seniority level
Senior
Years of experience
6 yrs.
Location
Ukraine, Lviv
Timezone
(GMT+02:00) Kyiv
Languages
German
Upper-Intermediate (B2)
Ukrainian
Fluent (C2)
English
Fluent (C2)
About
Software Engineer with over 5 years of hands-on experience developing sophisticated web and mobile solutions. Combining technical expertise with a passion for innovation, I'm eager to tackle challenging projects and drive exceptional results.
Core skills
  • JavaScript 6 yrs.
  • Axios 6 yrs.
  • React.js 6 yrs.
  • TypeScript 6 yrs.
  • React Native 5 yrs.
  • Redux.js 5 yrs.
  • Node.js 4 yrs.
  • Firebase 4 yrs.
  • Nest.js 4 yrs.
  • Next.js 3 yrs.
  • MySQL 3 yrs.
  • Django 3 yrs.
  • LESS/Sass/SCSS 3 yrs.
  • Python 3 yrs.
  • Django REST framework 3 yrs.
  • React Storybook 3 yrs.
  • React with Zustand 3 yrs.
  • React-Apollo 3 yrs.
  • Firebase Realtime Database 2 yrs.
  • Firebase Database 2 yrs.
Experience
Guardarian
SOFTWARE ENGINEER
About the Project

Guardarian is a web-based cryptocurrency exchange platform that offers the capability to trade over 400 different cryptocurrencies. Users can both buy and sell various cryptocurrencies on the platform. It provides a robust support system, including dedicated crypto pages and custom calculators that provide real-time price calculations for cryptocurrencies.

  • Cryptocurrency
Responsibilities

Responsibilities: - developing crypto pages and pagination - make admin-panel - optimizing SEO for the project - make a logination system - working on the Support functionality

Skills & technologies
  • Next.js
  • LESS/Sass/SCSS
  • TypeScript
  • Node.js
  • Nest.js
  • MySQL
Vibb
SOFTWARE ENGINEER
About the Project

The app gives you a complete overview of your energy consumption. It shows you your consumption in kilowatt-hours, kronor. In the app, You can see how much electricity costs, how high your electricity bills will be, and how it fluctuates. In this project, a lot of custom solutions are created that are unique and optimized as well.

Responsibilities

Responsibilities: - creating widgets and charts - working on the custom circle sliders - smart charging for E-Autos

Skills & technologies
  • React Native
  • Firebase
  • Firebase Realtime Database
  • Firebase Database
  • Node.js
Cryptonary
SOFTWARE ENGINEER
About the Project

The app was focused on providing users with cryptocurrency news, articles from various authors, and opinions on the industry’s development. It also offered essential features such as tracking key cryptocurrency data and a portfolio tracker to easily monitor crypto portfolios.

Responsibilities

I participated in a major project with 750k Instagram followers and over 100k on other platforms, with more than 200k registered users on the website. I was responsible for building the mobile app from scratch, covering everything from development to deployment on both the App Store and Play Market. Responsibilities: - Worked on authorization and authentication using Firebase (login via Google/Apple). - Set up and integrated push notifications via Firebase. - Implemented deep link functionality to improve user navigation and experience. - Managed the deployment process, generating all necessary certificates for the App Store and Play Market. - Designed and integrated a portfolio tracker with charts to monitor cryptocurrency portfolios.

Skills & technologies
  • TypeScript
  • React Native
  • React-Apollo
  • React Storybook
  • React with Zustand
  • Redux.js
  • Firebase
  • Axios
  • Python
  • Django
  • Django REST framework
Education
LPNU
2020 - 2024
Computer Engineering