Senior React Developer, Senken
September 2022 - Present
Developing the application senken.io for buy/sell/retire carbon credits token (using newest technologies like Next.js, React, Redux, web3 libraries, ethers.js). On the backend side used cryptocurrency and blockchain for saving and maintaining transactions. Setup architecture & choose libraries/tools on the frontend side, converting Javascript-based project to TypeScript, refactoring application from Mobx to Redux, optimizing performance (SSR, dynamic imports, code splitting etc.), code reviews for other team members
Senior React Developer, Jit Team
February 2021 - July 2022
Created an application for Nordea Bank for managing financial data (add/edit/remove data, generating reports based on that data etc.), built a casino site for Genesis Global Limited that allows users to play in different online games. Optimizing performance of the site with Next.js & Static Side Generation.
Senior Frontend Developer, EMPIK S.A.
August 2018 - January 2021
Created new features, maintenance, bug fixing on empik.com, maintaining the application used in stores by store employees, substantive support & doing code reviews for other team members
Frontend Developer, HRS Global Hotel Solutions
March 2014 - July 2018
Created new features on hrs.com, maintenance site & bug fixing, rewriting application to React.