MW

Marek Winiarski

Available to hire

Hi, I'm Marek. I'm a frontend developer based in Szczecin, Poland.

About

Hi, I’m Marek. I’m a frontend developer based in Szczecin, Poland. I have 4+ years of commercial experience building modern React-based web apps for international clients.

I specialize in scalable UI architecture, reusable component libraries, and close collaboration with designers, backend developers, and stakeholders to deliver high-quality user experiences.

  • 4 years' experience
  • Joined February 2026

Languages

  • PolishFluent
  • EnglishAdvanced

Industry experience

  • Software & Internet
  • Media & Entertainment
  • Professional Services
  • Retail

More experts in Szczecin, Poland

Work experience· 5 roles

Full Stack Developer · Agency Software HouseMay 2023 – Present · 3 yrs 7 mos

Developed and maintained full-stack web applications using React on the frontend and Node.js on the backend. Designed reusable React components and custom hooks to ensure scalability and consistency across projects. Built and integrated RESTful APIs and backend services for client-facing applications. Created and maintained a custom internal npm component library, improving development efficiency. Styled applications with Styled Components and implemented routing with React Router. Customised WordPress websites based on client requirements. Worked directly with clients in agile sprints to gather requirements and deliver production-ready solutions.

Full Stack Developer · Agencja SoftwareowaMay 2023 – Present · 3 yrs 7 mos

Developed and maintained full-stack web applications using React on the frontend and Node.js on the backend. Designed reusable React components and custom hooks to ensure scalability and consistency across projects. Built and integrated RESTful APIs and backend services for client-facing applications. Created and maintained a custom internal npm component library, improving development efficiency. Styled applications using Styled Components and implemented routing with React Router. Customized and extended WordPress websites based on individual client requirements. Worked directly with clients in agile sprints to gather requirements and deliver production-ready solutions.

Junior React Developer · Agency Software HouseMay 2022 – May 2023 · 1 yr 1 mo

Implemented UI components and features using React and modern JavaScript. Integrated REST APIs and supported backend development with Node.js. Contributed to shared npm component libraries. Styled applications with Styled Components and supported client WordPress customization.

Junior React Developer · Agencja SoftwareowaMay 2022 – May 2023 · 1 yr 1 mo
Junior Frontend Developer · AmplifierJan 2022 – May 2022 · 5 mos

Education

Bachelor of Engineering · West Pomeranian University of Technology, Szczecin2017 – 2021
Bachelor of Engineering – Digitization of Engineering · West Pomeranian University of Technology, Szczecin2017 – 2021
Bachelor of Engineering – Digitalization of Engineering · West Pomeranian University of Technology, Szczecin2017 – 2021

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