Professional Collaborations

My Contributions to Innovative Digital Products

Frontend React Developer

October 2021 - Present

BETFAN

Warsaw, Poland

  • Actively contributed to the development lifecycle by engaging in analysis, technical design, time estimation, and the implementation of both Frontend and Backend components for various features. Ensuring a smooth development process and the timely delivery of high-quality features.
  • Delivered responsive, cross-browser-compatible features based on Figma mockups, ensuring smooth UX across a range of devices and platforms.
  • Enhanced user engagement by implementing advanced betting functionalities and managing complex states using Redux as a global application state.
  • Created and standardized a set of React-Typescript components, achieving a significant reduction in development lead time and promoting cohesive design and uniformity across applications.
  • I took ownership of critical features within the app, managing key functionalities and serving as the primary point of contact for development, reporting, and troubleshooting
  • Implemented Google Analytics tracking campaigns to capture user insights across key areas of the app, delivering actionable data for both Acquisition and Retention strategies.
  • Add A/B tests on features to optimize frontend design decisions and improve user Retention rates.
  • Leveraged modern development tools such as ESLint and Prettier to enforce coding standards and best practices, ensuring that the codebase remained clean, readable, and maintainable.
  • Regularly participated in code reviews, sharing best practices, which helped to maintain high code quality and development.
  • ReactJS
  • Typescript
  • Redux
  • Tailwind CSS
  • NestJs
  • NodeJs
  • Storybook
  • Jira

FQA Tester

Jun 2021 - Oct 2021

Testronic

Warsaw, Poland

  • Responsible for performing end-to-end testing of new features before the deployment.
  • Verifying, performing and creating different check plans.
  • Testing UI/UX across various platforms.
  • Jira
  • Test Plans

Freelance Web Developer

Jan 2021 - Jun 2021

Warsaw, Poland

  • creating/administrating websites for businesses.
  • Manual and automated testing for the website.
  • Performing major & minor upgrades as per the client’s request.
  • Bug fixing and assuring proper behaviour of the website.
  • React
  • HTML
  • javascript
  • SCSS
  • Wordpress