Marcin Gromek — Frontend Developer

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

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

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