Marcin Gromek — Frontend Developer

Specializing in React, Next.js, Shopify, and WordPress

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About me

10+ years of experience in e-commerce & web development

Frontend developer with a passion for building fast, responsive, and user-friendly web applications. I specialize in the React ecosystem and e-commerce platforms like Shopify and WordPress.

Tech stack

React Next.js TypeScript Tailwind CSS Shopify WordPress Astro Node.js

Featured projects

WojanShop.pl

E-commerce store on Shopify with ERP integrations and custom theme

Shopify Liquid JavaScript

Miior7.com

International e-commerce platform with multi-language support

Shopify React TypeScript

Bellman Espresso

Product website with configurator and payment integration

Next.js Shopify Tailwind CSS

Desky

Custom video gallery and enhanced PDP functionality

Shopify React Custom Apps
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Experience

  • Efigence

    2014–2016

    Frontend Developer

    Building advanced e-commerce platforms for large clients. Working with proprietary frameworks and frontend tools.

  • Avon

    2016–2017

    Frontend Developer

    Developing web applications for an international cosmetics company. Optimizing performance and responsiveness of interfaces.

  • MyWorld

    2017–2018

    Frontend Developer

    Building loyalty platforms and cashback applications. Integration with payment systems and partner APIs.

  • BitBag

    2018–2019

    Senior Frontend Developer

    Specializing in Sylius e-commerce. Creating advanced online stores based on Symfony and modern frontend technologies.

  • Wunderman Thompson

    2019–2020

    Senior Frontend Developer

    Delivering projects for major brands (Bank Pekao S.A., PLAY, Emirates NBD). Working in an international agency environment.

  • Media4U

    2020–2021

    Frontend Developer

    Creating solutions for fashion and e-commerce industries. Projects for brands such as Marilyn, Tatuum, Cosmedica.

  • MachinePortal

    2021–2022

    Fullstack Developer

    Developing a B2B platform for machinery and equipment industry. Working on frontend and backend, ERP system integrations.

  • Brand Active

    2022–2023

    Frontend Developer

    Implementing Shopify Plus projects for international clients. Expanding store functionality and optimizing conversions.

  • Desky

    2023–present

    Senior Frontend Developer / Team Lead

    Leading the frontend team. Developing an e-commerce platform with advanced features (video galleries, custom PDP). React, Next.js, TypeScript.

Interested in working together?

Get in touch to discuss your project

Contact me