Yaroslav
From Ukraine (GMT+3)
8 years of commercial experience
Lemon.io stats
4
projects done927
hours workedOpen
to new offersYaroslav – JavaScript, React, Next.js
Yaroslav is a skilled front-end developer with a keen eye for visual aesthetics. He began his career working with pure JavaScript and later specialized in React development. Yaroslav's natural curiosity drives him to explore new technologies, making him a valuable asset for any project.
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Additional skills
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Potentially possibleExperience Highlights
Senior front-end developer
A product that can help clients analyze their assets and their maintenance history to help optimize maintenance efforts. The company also offers advanced analytics services. It can help customers predict when their machine will fail so that they can be proactive in managing their assets while also minimizing costs.
- created front-end architecture;
- implemented advanced custom charts and flow diagrams with React Flow;
- redesigned the existing front-end;
- built front-end components library;
Senior front-end developer
Project for creating shipments and trips to deliver goods from one point to another.
- created client-side architecture
- designed REST API
- implemented components library
- optimized app requests and caching
JavaScript Engineer
A CMS system for managing articles content for news websites. A lot of different APIs (Twitter, Instagram, Facebook) were used there. Users were able to use rich text editors, and upload videos/images. After article creation, they had a possibility to publish articles to chosen destinations and select publishing date.
- built app architecture
- added new features
- fixed issues
- wrote unit tests
React Native Developer
It was an application where users were able to scan and upload photos of flower seeds and detect it’s type with Google Vision API , also rate this products and leave reviews.
- built app structure
- developed API
- added new features
JavaScript Engineer
The project was a big marketing survey tool. Users were able to take part in the survey, see their results, graphics, charts, etc.
- built app from scratch according to the design
- wrote tests
JavaScript Engineer
Monitoring tool for servers. It monitors different servers fails and warnings in realtime. It was a big calendar screen with events from monitored servers, which were updated via socket connection.
- created REST API
- developed client web app with React + Material UI
FullStack engineer
A product for managing social medias. The main feature was to control all user's social profiles (IG, TW, FB) from one place. Users were able to like posts, comment them, publish photos / videos to all their social accounts from one place.
- developed NodeJS server with sockets
- rewrote ReactJS app from scratch