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Andrii – JavaScript, React, Node.js, experts in Lemon.io

Andrii

From Ukraine (GMT+3)

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Front-end Web DeveloperSenior
Hire developer
11 years of commercial experience
Cloud computing
Medtech
Project management
Transportation
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Andrii – JavaScript, React, Node.js

Meet Andrii - a Senior front-end engineer with over 10 years of commercial experience! During this career, Andrii was involved in projects as a Lead Engineer and a CTO, which greatly highlights his leadership abilities. Additionally, he made architectural decisions and built things from scratch—tackling the challenge head-on with the most efficient solution! Andrii was observed to have strong problem-solving skills, a solid understanding of React.js, and a thoughtful approach to code optimization and architecture. What a win-win blend! There is no way you can pass by such a wonderful fit!

Main technologies
JavaScript
9 years
React
6 years
Additional skills
Node.js
Typescript
MongoDB
Redux
PostgreSQL
React Query
Nest.js
Next.js
Formik
D3.js
Ready to start
ASAP
Direct hire
Potentially possible

Experience Highlights

Senior Full-Stack Engineer
Nov 2022 - Ongoing1 year 7 months
Project Overview

The project was one of several Andrii completed through this client. This instance was a platform to set up and run complex cloud environments based on multiple web services like AWS cloud instruments combined with custom services implemented by the core team.

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Responsibilities:

Andrii's responsibilities included the following:

  • participated in creating a page builder using Craft.js, which allowed users to create different front-end components and, as a result, presented a fully completed web page;
  • worked in multi-service environments and completed a lot of back-end work, which involved diving deep into the mature logic of enterprise-level application;
  • largely contributed to the implementation of a large multi-step form wizard.
Project Tech stack:
React
Node.js
Nest.js
PostgreSQL
Styled-components
Next.js
React Query
GitHub Actions
NATS.io
Kafka
React.js Developer
Nov 2021 - Nov 20221 year
Project Overview

This was the second project Andrii was a part of for this client. The aim of this project was to create a specialized environment, enabling users to run compute services, such as Jupyter Notebook, with complete customization.

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Responsibilities:

Andrii's successfully managed the following tasks:

  • participated in the implementation of the main dashboard;
  • implemented data analytics visualization;
  • participated in creating of separate UI component library;
  • worked with Storybook to deliver the best experience working with the UI component library.
Project Tech stack:
React
Redux Toolkit
Tailwind CSS
Typescript
Storybook
React.js Developer
Apr 2021 - Nov 20217 months
Project Overview

The project's aim was to automate the deployment and management of configurable assets on third-party clouds, such as Amazon Web Services.

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Responsibilities:

Among others, Andrii has successfully implemented the following:

  • contributed to the creation of a wizard tool to automate the deployment of predefined images on third-party cloud platforms;
  • developed a diverse range of React components for data display and storage.
Project Tech stack:
React
Redux
Formik
HTML
CSS
Styled-components
React.js Developer
Sep 2020 - Apr 20217 months
Project Overview

The project enabled users to create a personalized application using React.js widgets. By leveraging React.js's modularity and flexibility, it allowed users to create an application tailored to their specific needs and preferences, with the ability to add, remove, and configure widgets as required.

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Responsibilities:

Among the rest of the responsibilities, Andrii carried out the following:

  • participated in the creation of micro front-end architecture;
  • created a fully configurable Wizard based on configuration rules that are coming from the customer's back-end;
  • developed a wide variety of different React.js widgets to display or save data.
Project Tech stack:
React
Formik
Styled-components
Full-stack Developer
Aug 2020 - Sep 20201 month
Project Overview

Project to produce analytics data and charts based on provided formulas.

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Responsibilities:
  • Created high-loaded D3 charts which showed analytics data with great performance;
  • Created back-end service, which was parsing excel sheets with provided formulas.
Project Tech stack:
React
D3.js
Express.js
Sequelize ORM
HTML
CSS
Node.js Developer
May 2020 - Aug 20203 months
Project Overview

Project to organize new medical treatment for children that have eye issues.

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Responsibilities:
  • Created complete REST API on Nest.js using Typescript;
  • Integrated back-end service with customer's personal ORM;
  • Wrote integration tests with third-party services on the customer side.
Project Tech stack:
Node.js
Nest.js
Typescript
Full-stack developer
Apr 2019 - Mar 202011 months
Project Overview

Project to see, track and override cargo air transportation data values calculated by data science.

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Responsibilities:
  • Created a single-page application using a functional style combining HOCs with React Hooks;
  • Gained knowledge in testing using low-level testing, which gives you better coverage of components and application business logic;
  • Directly integrated into work with customers;
  • Had experience and became familiar with Azure Cosmos DB;
  • Had experience in developing low-level D3.js charts.
Project Tech stack:
React
Redux
Node.js
D3.js
Formik
Swagger
Redis

Education

2016
Software Engineering
Bachelor
2018
Software Engineering
Master

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