Robert J.

Senior Frontend Developer

Gdańsk, Pomorskie, Poland

About

I'm a Senior Frontend Developer with 10 years of with expertise in building web applications mostly based on React with Next and Node.js. I have successfully developed components library for internal client systems and also deliver high-quality solutions. Went a long path from jQuery DOM manipulation, through AngularJS and Vue frameworks to modern SSR rendered React applications.

Experience

  • Senior Frontend Developer at OLX
    Mar 2025 - Present · 1 yr 4 mos

  • Senior Frontend Developer at First Line Software
    Jun 2021 - Mar 2025 · 3 yrs 10 mos

    - Collaborated with USA team to gather requirements and implement new features and improvements - Developed new frontend features for USA client - Rewire old legacy system in modern way (frontend-cache, react-router, form-hooks) - Resolved optimized issues and improve application performance - Participated in code review and agile development processes - Writing unit tests based on storybook stories and use cases

  • Frontend Web Developer at Xebia
    Nov 2020 - May 2021 · 7 mos

    - Worked on accounting and payroll software services - Developed frontend components and interfaces for client micro-frontend services - Participated in code review and agile development processes - Reaching 100% unit tests code coverage using React Testing Library as per Client requirements

  • Frontend Engineer at CodiLime
    Nov 2019 - Oct 2020 · 1 yr

    - Working as a part of the team cooperating with Deutsche Telekom - Developed system for monitoring and analysis network traffic “observability platform” with live time polling for Frontend Graphs (similar to Grafana) - Improved system to be accessible for people with disabilities, creating required tab indexes, contrasts and keyboard access to move components and graphs using keyboard

  • Frontend Engineer at Xebia
    Jun 2018 - Oct 2019 · 1 yr 5 mos

    - Developed admin panel for cinema industry client - Improved CI/CD process, split components and core parts for private npm packages - Worked with docker for testing and keeping proper node and packages versions - Using tools like "Verdaccio" to test splitted libraries, using local(fake) private npm repository - Worked with flexible and reusable Vue.js and Sass components (like storybook) library based on mockups, for client user-interfaces