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Vitalii – JavaScript, React Native, Typescript, experts in Lemon.io

Vitalii

From Poland (GMT+2)

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Mobile DeveloperSenior
Hire developer
6 years of commercial experience
Food and beverages
Telecommunications
Mobile apps
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Vitalii – JavaScript, React Native, Typescript

Vitalii is an accomplished senior software developer with 5+ years of experience in delivering top-notch mobile and web applications. He is eager to apply comprehensive software creation and maintenance expertise for performant React Native applications and take care of team management. Vitalii is willing to apply cutting-edge approaches and solutions to deliver an exclusive user experience. He has a good eye for UI/UX, pragmatism, and a strong will to get things done while working independently.

Main technologies
JavaScript
8 years
React Native
5 years
Typescript
4 years
React
8 years
Additional skills
Git
Electron.js
Agile
Axios
Redux Saga
Redux
Web Sockets
Unit testing
Jest
MobX
Expo
Next.js
Ready to start
ASAP
Direct hire
Potentially possible

Experience Highlights

Senior React Native Engineer
Nov 2018 - Dec 20224 years 1 month
Project Overview

Orange Flex is a Mobile Plan in a Mobile Application that combines the convenience of a subscription, the flexibility of pre-paid offers, and a completely new way of managing the account through a special, extremely simple, and transparent application to which the user connects their payment card.

Skeleton
Skeleton
Skeleton
Responsibilities:
  • Worked on the app performance bottlenecks and UX/UI, which caused an increase in the work and feel of usage to 40% of the app (code optimizations, re-renders, app bundling, architecture, etc.) and growth of conversion;
  • Implemented theming for the app;
  • Helped drive the team’s React Native implementation and programming well-being by staying up-to-date regarding industry standards and direction, mentoring mid/jr team members;
  • Involved in development iterations planning;
  • Followed agile software development process and attended scrum meetings for incremental product development;
  • Evaluated and researched the latest device technology, coding patterns, software frameworks, and features and integrated them into the app;
  • Was responsible for developing and maintaining the web part of the application.
Project Tech stack:
React Native
Redux
Redux Saga
Web Sockets
Typescript
Unit testing
CI
Senior React Native Developer
Dec 2021 - Jan 20221 month
Project Overview

Actio is the live expert platform that gives the user access to experts in almost anything, like career, relationship, finance, or legal advice.

Skeleton
Skeleton
Skeleton
Responsibilities:
  • Implemented performant feed list;
  • Implemented settings screen;
  • Implemented complex calendar component with native components and date.js library;
  • Refactored existing UI library to improve scalability and reusability of components;
Project Tech stack:
React Native
Jest
Typescript
Axios
Senior React Native Developer
Feb 2021 - Mar 20211 month
Project Overview

Sunbasket is a San Francisco-based subscription meal delivery service that ships members fresh organic and sustainable ingredients and recipes every week, allowing them to cook their own meals. It is part of the meal kit industry.

Skeleton
Skeleton
Skeleton
Responsibilities:
  • Was responsible for features implementation and performance issues analysis;
  • Debugged and improved the performance issues of the delivery list;
  • Implemented scalable pixel-perfect UI components;
  • Refactored existing UI components library;
  • Dealt with the challenge of integrating into the development process as quickly as possible and boost the process of app delivery to accomplish application release before the deadline;
Project Tech stack:
React Native
Redux
Typescript
Axios
Unit testing
Senior React Native Developer
Dec 2019 - Jul 20206 months
Project Overview

A diet catering app that allows the user to manage their box diet, choose the menu, and change dates and delivery addresses.

Skeleton
Skeleton
Skeleton
Responsibilities:
  • Was responsible for app delivery, architecture, code quality, performance, tests, and debugging;
  • Mentored the team (code review, meetings, sprints planning, tasks delegation);
  • Integrated the best practices of the "React" ecosystem (code writing style, linting, code formatting, code review);
  • Maintained dev-friendly processes like Continuous Integration and Code Review;
Project Tech stack:
React Native
Axios
Unit testing
Redux
MobX
Redux Saga

Education

2016
Computer Science
Master's
2016
Computer Systems Networking and Telecommunications
Master's

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