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Summary

Expertise

Project Highlights

Agency

SK

English:

Upper Intermediate

Sergey K.

vetted by Youteam

Vetted by YouTeam

Ukraine

UTC +02:00

Ukraine/Kyiv

English:

Upper Intermediate

I’m a JavaScript / TypeScript software engineer specialized in developing web applications with React, Next.js, Node.js, Express, and GraphQL.

I’m proficient in developing web products for retail and booking; designing customizable dashboards for business intelligence and data analytics. Experienced in creating pixel-perfect page layouts with SCSS Less, and Stylus. I can take ownership of project delivery at all stages and at all levels, starting from the initial architecture to the overall application look & feel.

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Check if Sergey is available

Expertise

Years of commercial development experience

3 years of experience

Other technologies

CSS
Express.js
HTML5
JavaScript
MongoDB
Node.js
React.js
TypeScript
CSS3
HTML
Redux
Nest
GraphQL
Redux-saga
Firebase
Material-UI
Next.js

Project Highlights

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Front-End developer

​Hospitality System

Hospitality System (the real name is under NDA), developed for a large hotel network operating in Northern Europe. There I was responsible for designing and implementing the product from conception to release working closely with stakeholders at every stage. I also designed overall code architecture, took into account non-functional requirements and plans for future extension. The technology stack I used includes TypeScript, React, Next.js, Redux, Material-UI.

Responsibilities & achievements

Designing and implementing the product from the conception to release working closely with stakeholders at every stage. Designing overall code architecture, taking into account nonfunctional requirements and plans for future extension. Implementing and testing the core product features, including payment processing and the hotel catalogue with the intelligent search. Creating custom page layouts based on the high-level business requirements, initial templates, and mockups.

React.js
TypeScript
Redux
Material-UI
icon
Full-Stack dfeveloper

Retail BI Solution

The next one is Retail BI Solution (the name is under NDA), a custom business intelligence web application developed for a large US-based retail company to simplify day-to-day processes and consolidate goals and operation of the sales, finance, and marketing departments. The client-side web application is implemented in TypeScript and React and relies on a custom backend API developed with Symfony. The interaction between client and server is implemented using Apollo GraphQL. The custom responsive user interface is implemented on the base of Material-UI.

Responsibilities & achievements

I was designing and developing the frontend part of the project from the ground up, working together with a team of backend engineers. Implementing user interface relying on detailed prototypes provided by the UI / UX Design team. Integrating the frontend with the backend GraphQL API. Implementing charts and graphs for high-level business overview and forecasts. Working closely with stakeholders throughout the project development.

React.js
TypeScript
Redux
Chart.js
GraphQL
Material-UI

Agency

Web Software Development agency #281

50-100

GMT+2

Dnipro/Ukraine

Core Expertise

Cassandra
Express.js
Java
JavaScript
MongoDB
Node.js
PostgreSQL
React.js
React Native
Scala
Spark
Akka
Play Framework
Nest
GraphQL
Next.js

Industries

Education & Science, E-Commerce & Retail, Banking & Finance, Information services & Technologies, Sports & Fitness, Advertising & Marketing, Social Media & Communication, Healthcare & Medicine, Booking & Rent, Data Science & Machine Learning, Big Data, Internet of Things, Branding, design, web development, SaaS, ERP, Translation and Localization

Want to hire this engineer?

Check if Sergey is available