Sławomir Mazgaj

– Developing an adaptive learning platform that empowers mission-critical learning with measurable impact. – Working on big rewrite of user-facing portal from Clojure script to Next.js – Built a Visual Content Editor (VCE) from the ground up using Puck and TipTap, delivering inline editing, side-by-side comparison, drag-and-drop block management, and branding-aware styling – Developed a full-featured Partner Portal and CMS, including Knowledge Space management, organisation settings, multi-language support, role-based access controls, and content lifecycle workflows – Implemented an end-to-end Question Creator, covering authoring, editing, publishing, topic filtering, and CKEditor integration for rich text content – Delivered Two-Factor Authentication (2FA) across the platform, including OTP login, setup flows, per-organisation rollout, global sign-out, and in-app support widget integration – Created a guided content upload Wizard with drag-and-drop file uploads, real-time processing status, learning objective configuration, and session state management – Built an immersive 360° VR video player using Three.js, featuring interactive hotspots, a navigation minimap, in-VR multiple-choice questions, and custom camera controls

– Employee Listening team - delivering real-time employee sentiment analysis and actionable insights to improve the employee experience.

– Yoti sign team - Working on document signing platform. – JS, React, GraphQL, NodeJS – React, React Query, React testing library, NodeJS, TypeScript, AWS Lambda, Prisma, Micro-frontends

– Making games using FLASH (ActionScript 3.0) and FLEX. – Fb social games for Wooga.

– QA Engineer

– Making web sites using FLASH and PHP.