Summary

Expertise

Project Highlights

Education

Agency

OH

English:

Upper Intermediate

Oleksii H.

vetted by Youteam

Vetted by YouTeam

Ukraine

UTC +02:00

Ukraine/Kyiv

English:

Upper Intermediate

Senior JavaScript developer with more than 8 years of professional work experience in web development.

I’m a front-end developer with more than 8 years of professional work experience in web development. I specialize in developing complex client-side web applications. I have participated in a range of projects connected to e-commerce, mobile development, UI frameworks, and analytics.

Want to hire this engineer?

Check if Oleksii is available

Expertise

Years of commercial development experience

8 years of experience

Core technologies

React.js 7 years
Node.js 3 years
JavaScript 7 years
TypeScript 2 years
Redux 7 years
Next.js 3 years

Other technologies

AWS
GitHub
JIRA
Linux
Meteor
MongoDB
Jenkins
Ansible
Confluence
Vagrant
Docker
Zeplin
GitLab
Bitbucket
GraphQL
Figma
Redux-saga
Material-UI
Terraform

Project Highlights

icon
JavaScript Developer

Mat3ra

Feb `23 - Oct `23

8 months

Cloud-native digital materials R&D platform. It enables materials scientists and engineers to adopt and deploy a wide variety of modeling techniques to develop new materials.

Responsibilities & achievements

• Developing user interface. • Extending UI functionality.

Meteor
MongoDB
React.js
TypeScript
Redux
Material-UI
icon
JavaScript Developer

Quant Technologies

Jun `21 - Feb `23

2 years

Quant Technologies

A retail platform for managing Socar gas stations.

Responsibilities & achievements

• Developing Point Of Sale UI interface. • Developing Customer Screen UI interface. • Developing Self Checkout UI interface. • Integration with REST API.

React.js
TypeScript
Redux
Redux-saga
icon
JavaScript Developer

Easel

Mar `21 - Jun `21

3 months

Content management system.

Responsibilities & achievements

• Developing user interface. • Integrating with REST API.

React.js
Redux
Material-UI
icon
JavaScript Developer

XJS

Excel engine which allows converting and calculating Excel documents in Javascript (Browser and Node.js).

Responsibilities & achievements

• Extending and supporting Excel functions.

Excel
Node.js
icon
JavaScript Developer

IVD

Web application to create interactive presentations.

Responsibilities & achievements

• Extending presentation editor functionality. • Generating PPTX reports. • Generating Word documents. • Enhancing UI functionality.

Node.js
React.js
icon
JavaScript Developer

Ramo

Platform for clothing customization where you can create a unique t-shirt or hoodie.

Responsibilities & achievements

• Extending UI functionality. • Developing functionality to add multiple images on Canvas. • Developing functionality for image transformation on Canvas (move, rotate, scale, delete). • Extending the order configuration menu.

AWS
React.js
SVG
Redux
Contentful CMS
icon
JavaScript Developer

MoveData

Fundraising platform.

Responsibilities & achievements

• Extending API for new integrations. • Implementing email reports using SES. • Developing GraphQL API. • Refactoring lambda heartbeat functionality. • Extending Terraform configs to support new AWS services.

AWS
GraphQL
Terraform
icon
JavaScript Developer

Welcome To Country

E-commerce platform for selling travel experiences in Australia.

Responsibilities & achievements

• Developing UI based on the Shopify platform. • Creating AWS Lambda functions to send emails for order creation, updates, and reminders. • Integrating with third-party plugins for Shopify.

Shopify
DynamoDB
AWS Lambda
icon
JavaScript Developer

Toyzwave

E-commerce platform for IoT selling toys.

Responsibilities & achievements

• Developing store and admin UI. • Developing backend and API for managing orders and products. • Integrating with the Stripe payment system. • Creating product lists and cards.

Node.js
React.js
Stripe
icon
JavaScript Developer

Ezlo

Ezlo company site.

Responsibilities & achievements

• Developing and supporting a company site. • Creating new pages. • Integrating with the Medium platform to retrieve company-related articles. • Implementing complex animations for new products.

AngularJS
React.js
GatsbyJS
icon
JavaScript Developer

Uber

Data visualization tool for representation expenses between distribution channels (TV, Radio, Internet, etc.)

Responsibilities & achievements

• Developing interactive charts using the uber React-vis library. • Implementing parsing and indexing big data files up to 100Gb. • Implementing search through a large amount of data.

React.js
icon
JavaScript Developer

Secure Swiss Data

Email encrypted service including a mobile app, a web app B2B, and B2C.

Responsibilities & achievements

• Developing a webmail client. • Developing a mobile application. • Developing signup and login functionality for mobile and web. • Integration with payment systems Stripe, and CCBill. • Backend for email exchange. • Working with email parts.

Node.js
React.js
React Native
Stripe
SMTP
icon
JavaScript Developer

OpenMedia

OpenMedia - newspaper.

Responsibilities & achievements

• Creation of user interface and admin for news creation. • Developing the main article page, a news feed, article tag system. • Developing signup and login functionality. • Developing admin form for article creation.

Node.js
React.js
Redux
icon
JavaScript Developer

UI toolkit

UI framework for building UI interfaces. The project represents a set of UI components for quick UI development.

Responsibilities & achievements

• Developing a reusable set of UI components (buttons, popups, dropdowns, checkboxes etc.)

React.js
icon
JavaScript Developer

Premix

Data visualization and data analytic mobile application.

Responsibilities & achievements

• Developing UI and animation components. • Creating animation controls (sliders, buttons, sidebars, popups). • Managing scenarios. • Integrating with Excel model. • Integrating with the Vablet system. • Developing charts with the D3 library. • Generating PDF reports.

React.js
Redux

Education

Higher education in Computer Science

Agency

Development agency #31

400+

GMT-11

Remote

Want to hire this engineer?

Check if Oleksii is available