Software Engineer at Kilanka GmbH

Extended features by implementing RPC-based backend endpoints on Node.js, extending typed frontend features with React.js, and writing PostgreSQL migrations. Built a reusable component library with TypeScript, CSS, Storybook stories, and clear usage documentation for other teams. Implemented export and migration utilities for transferring customer domains (entities, storage/files, and associated resources) to support offboarding workflows. Introduced an authorization layer with JWT access tokens and automated refresh handling, enforcing granular role-based access. Contributed to frontend testing and architecture alignment with the existing platform.

Built an access-matrix platform on React.js with dedicated client and admin views, using WebSockets for real-time updates of approval chains, reducing manual review time for access requests by 40–50%. Set up deployment in infrastructure with containerized services, configuring routing via Nginx, provisioning AWS environment, and automated deployments through GitHub Actions. Established the React.js frontend data layer using RTK Query with normalized data, predictive caching, and unified error handling. Designed an authorization layer with JWT access tokens and automated refresh handling, enforcing granular role- and permission-based access.