Grzegorz Derdak
Tech Leader / Frontend Developer
I began my career in 2014 as a WordPress developer, building frontend interfaces with PHP and jQuery. In 2015, I joined STX Next as a Junior Python Developer and progressed to Senior Fullstack Developer, creating applications in JavaScript and Python. From 2020, I worked at Mirumee as a Fullstack Developer, architecting and maintaining REST and GraphQL APIs, delivering end-to-end solutions across diverse international projects. Since 2024, I've been serving as a Team Leader for both open-source and commercial initiatives, leading development teams, conducting code reviews, and mentoring developers, while collaborating with clients worldwide — from Japan to the USA — and shaping development strategies and system architecture.
Throughout this journey I’ve grown from frontend development to full-stack engineering and technical leadership, gaining extensive experience in distributed teams and cross-cultural collaboration.
Proficient in React, Next.js, and TypeScript, currently expanding my skills in Go and DevOps.
Bachelor's degree in Economics
Akademia Nauk Stosowanych im. Stanisława Staszica w Pile
Jan 2012 - Jan 2015
- Specialization: IT in Business and Administration
Junior Web Developer
Webtom, Piła, Poland
Jan 2014 - Jan 2015
- Developing themes and plugins for WordPress.
Junior Python Developer
STX Next, Piła, Poland
Jan 2015 - Jan 2016
- Developing and maintaining web apps written in Python and JavaScript.
Python Developer
STX Next, Piła, Poland
Jan 2016 - Jan 2019
- Developing and maintaining web apps written in Python and JavaScript.
Senior Fullstack Developer
STX Next, Piła, Poland
Jan 2019 - Jan 2020
- Developing and maintaining web apps written in Python and JavaScript.
Fullstack Frontend Developer
Mirumee Software, Remote, Poland
Jan 2020 - Jan 2024
- Speaking with the client to gather requirements, organizing and planning work for the team.
- Implementing frontend apps for Saleor using React, TypeScript, and Next.js (with Vercel).
Team Lead / Fullstack Frontend Developer
Mirumee Software, Remote, Poland
Jan 2024 - Present
- Leading a team consisting of several, multi-disciplinary team members.
- Taking care of the backlogs, organizing work for the team, concluding meetings with the client.