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Stepan – React, Node.js, Typescript, experts in Lemon.io

Stepan

From Poland (GMT+2)

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Full-stack Web DeveloperMiddle
Hire developer
6 years of commercial experience
Automotive
E-commerce
Healthcare
Logistics
Manufacturing
Pharmaceutics
Transportation
Urban development
B2B
Mobile apps
POS systems
Lemon.io stats
2
projects done
300
hours worked
Open
to new offers

Stepan – React, Node.js, Typescript

Stepan is a Middle Full-Stack Engineer with 3 years of experience with React and Node. He is really passionate about blockchain and other cutting-edge technologies, which is complemented by his solid track of working with startups.

Main technologies
React
3 years
Node.js
3 years
Typescript
2.5 years
JavaScript
4 years
Additional skills
AWS
web3.js
Solidity
Docker
Express.js
Flutter
Firebase
Redux
HTML
SCSS
jQuery
Amplify
WordPress
Gatsby.js
GraphQL
Terraform
Cypress
Lambda
API Gateway
Amazon S3
DynamoDB
Serverless Computing
Salesforce
Algolia
Contentful
Next.js
Prisma
Truffle
CSS
Rewards and achievements
June 2024: Karina Summary
Ready to start
ASAP
Direct hire
Potentially possible

Experience Highlights

Software Development Engineer
Mar 2022 - Jul 20224 months
Project Overview

A new U.K. startup hooks directly into the U.K.’s NHS healthcare system to offer itself as a personalized pharmacy option, listed alongside local stores on GPs’ computers. It’s now raised $6 million in seed funding from Pear VC and Hoxton Ventures. The main features Stepan worked on were internal POS - Operational System aka Back Office; integration with EPS - Electronic Prescription Service; patient “onboarding” feature.

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Responsibilities:
  • refactored the majority of the code from Javascript to Typescript;
  • added e2e tests with 60% coverage, covering some parts by 100%, including some difficult cases like parsing and comparing pdf files that are printed in the pharmacy;
  • added CI/CD Pipeline for tests together with parallelization to several machines;
  • redesigned the front-end, added components UI library, and added layering with the help of Redux Toolkit as a state manager and Redux-Observable as a middleware.
Project Tech stack:
Cypress
Typescript
DynamoDB
Lambda
Amazon S3
Terraform
Docker
GitHub Actions
React
Software Development Engineer
Apr 2021 - Mar 202211 months
Project Overview

It is a B2B digital solutions marketplace and community for industrial innovators. It is a London-based startup that secured a $10M Series A investment backed by Boston Consulting Group, Traxys, ABCP, and Societe Generale.

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Responsibilities:
  • developed a homepage for search and view digital solutions using partially dynamic routing for SEO optimization along with filtering, searching, and linking multiple data sources - such as Contentful and Salesforce using and enhancing the Algolia engine;
  • improved the community network using Tribe and did various two-way integrations with the main platform;
  • refactored and redesigned many pages using React, SCSS Modules, and GraphQL;
  • added Google Analytics to track Cognito events on the backend using AWS Lambda;
  • developed many endpoints for different purposes using Express;
  • maintained e2e tests using Cypress.
Project Tech stack:
Gatsby.js
Typescript
GraphQL
Terraform
Cypress
Lambda
API Gateway
Amazon S3
DynamoDB
Serverless Computing
Pardot
Salesforce
Algolia
GTM
Contentful
React
Express.js
Web Developer
Jul 2020 - Apr 20218 months
Project Overview
  • A web application that allows building a map of mobile houses by customizing them.

  • A web application that allows you to customize the display of different landing pages depending on the arguments you pass.

  • A mobile app for connecting shippers and transporters.

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Responsibilities:
  • created many projects from scratch;
  • Google Maps API integration;
  • developed and supported different parts of the projects.
Project Tech stack:
Flutter
Firebase
PHP
Typescript
Redux
React
Front-end Developer
Mar 2020 - Mar 20211 year
Project Overview

It is a website development and promotion company for automotive dealers. Based in Portland, Oregon.

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Responsibilities:
  • created a website builder with the ability to add blocks from the catalog, move, edit all the lettering, change colors, pictures, etc.
  • created a builder from scratch using React/Redux;
  • implemented a fast, caching search of a large database of vehicles, including filtering by all parameters;
  • created different dealer website themes with HTML/SCSS, jQuery, and PHP.
Project Tech stack:
HTML
CSS
SCSS
jQuery
AMP
Redux
React
JavaScript
WordPress

Education

2022
Design of computer games and VR applications
Bachelor's

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