Grzegorz – JavaScript, React, Vue.js

Hosting Services website and CRM

• designed (UI + architecture), coded and deployed the whole solution
• built CRM based Notion API
• used Directus as at-build-time headless CMS
• built PM2 managed microservices using Polka.js
• configured continuous deployment via GitHub Actions to a FreeBSD VPS
• built client/service status CRON jobs
• implemented automations with invoicing system API

A mobile application and a multi-usage API communicating with corporate's instance of SAP CRM/ERP, handling all in-field chores for contractors, their reporting, and documentation of work being done

• Maintained and fixed existing API functionalities;
• Added various new API features;
• Initiated and led a migration process to "API v2" (from VanillaJS to Typescript).

A bespoke system to see and control the processes of wind farm installation for Vattenfall.

• Contributed to the analysis of client's needs and wire-framing of the UI;
• Created bootstrap project and base front-end components;
• Mentored junior developers.

Art market Due Diligence platform that is helping organizations and private investors comply and succeed with challenging regulations through an elegant, easy-to-use set of forms and creators.

• Created the whole front-end architecture for the new version of the app from scratch;
• Built an engine for easy creation of step-by-step React forms;
• Built StoryBook documentation for the components library.

This is a main corporate website for Germany (they also have others).

• Was responsible for templating and migrating jQuery front-end to OOP VanillaJS and VueJS;
• Touched almost all parts of the legacy JavaScript and moved it to Azure Cloud;
• Added CI/CD and unit testing.

This were bespoke two-touchscreen "vending" machines serving betting opportunities for the clients.

• Developed new betting categories;
• Fixed a handful of bugs;
• Increased test coverage and performance;
• Decreased bundle size and build time;
• Migrated unit tests from Karma to Jest.