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Marcin – React, Next.js, Node.js, experts in Lemon.io

Marcin

From Poland (GMT+2)

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Full-stack Web DeveloperSenior
Hire developer
13 years of commercial experience
Analytics
Cryptocurrency
Data analytics
Healthcare
Healthtech
Insurance
Marketing
Real estate
Retail
AI software
Dev tools
Lemon.io stats
1
projects done
222
hours worked
Open
to new offers

Marcin – React, Next.js, Node.js

Marcin is a Senior Developer with 10+ years of experience in high-level web and mobile solutions. He is proficient in front-end development, mainly in React and Next. He’s also experienced in back-end development in PHP, Python, and Node.js. Marcin's experience includes helping develop fully functional and robust client applications and managing small teams. He is motivated by innovative, challenging projects with extensive research/development initiatives and complex technical requirements.

Main technologies
React
6 years
Next.js
4 years
Node.js
1 year
Additional skills
Gatsby.js
React Native
PHP
jQuery
Python
Django
Redux
Google Analytics
Firebase
Ready to start
ASAP
Direct hire
Potentially possible

Experience Highlights

Senior Front-end Developer
May 2022 - Aug 20223 months
Project Overview

Withpower.com is a platform helping people discover promising clinical trials and get in touch with the researchers directly.

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Responsibilities:
  • created front-end components
  • refactored code debugging
  • fixed bugs
Project Tech stack:
React
Next.js
Senior Software Developer/Frontend Technical Lead
Aug 2021 - Feb 20226 months
Project Overview

Free-to-list property portal that uses innovation and technology to provide better services to both agents and consumers.

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Responsibilities:
  • Led a small frontend team
  • Developed the web page and web applications using React/Next
  • Planned and executed legacy code removal and refactoring, improving SEO
Project Tech stack:
React
Redux
Redux Saga
Next.js
Senior Software Engineer
Jan 2021 - Aug 20217 months
Project Overview

AxiomHealth is an AI-based system that helps to make decisions in the healthcare industry.

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Responsibilities:
  • Led a small frontend team
  • Made decisions on the frontend architecture
  • Collaborated with backend on the API creation
  • Implemented the web app that presents large datasets and predictions in a user-friendly way.
Project Tech stack:
React
React Query
Typescript
Senior Frontend Developer
Dec 2019 - Jan 20211 year 1 month
Project Overview

Decent.com is a health insurance company that wanted to provide affordable health insurance for everyone in the US.

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Responsibilities:
  • Was responsible for developing a web application and company website in React and Gatsby
  • Was in charge of ensuring the implementation of best practices
  • Cooperated with backend team in creating API interfaces
  • Worked on client web panel and company website migration from Wix to Gatsby
Project Tech stack:
Redux
React Query
React
Gatsby.js
Software Developer
Feb 2018 - Dec 20202 years 10 months
Project Overview

Heartgrenade is a Software House.

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Responsibilities:
  • Developed web applications in React/Next
  • Created and optimized Next based app
  • Built innovative mobile applications using React Native
Project Tech stack:
React
React Native
Next.js
Redux
React Query
Typescript
Software Developer
Jun 2015 - Dec 20183 years 6 months
Project Overview

Rais.io is a solution that helps brands use their customer data to increase acquisition and retention through machine and human intelligence. Marcin was involved in migrating the app from PHP to Python and implementing new features in Python/Javascript.

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Responsibilities:
  • Worked on integrations with webshops API: Magento, Woocommerce, BrightPearl, Shopify
  • Added new functionalities and improved UI - PHP, YII, Django, jQuery, React
Project Tech stack:
PHP
Django
Yii
React
jQuery
Senior Software Developer
Mar 2017 - Dec 20179 months
Project Overview

Apart from creating games Bushido Games was also involved in creating cryptocurrency mines and creating software that supports them.

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Responsibilities:
  • Developed web applications using React
  • Created and designed mobile applications using React Native.
Project Tech stack:
React Native
React

Education

2012
Information Technology
Master's Degree

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