6+ years with legacy Java EE stacks. I extend, stabilize and modernize complex systems without breaking production.

Large-scale CRM migrations. OAuth flows, REST pipelines, field mapping at scale — Bullhorn, Carerix, Adfinity.

React/TS, Jetpack Compose and SwiftUI. Clean architecture, shared design systems, platform-native feel.

Node-RED for business-critical pipelines: placement-to-invoice, CRM sync, notification triggers and dashboards.

Merise methodology, MySQL/MariaDB schema design, complex query optimization and MongoDB aggregation.

Deep expertise in Java SE/EE 6, JSF 1.2, Hibernate ORM and Crystal Reports 2008. Memory leaks, session management.

OAuth 2.0 for enterprise CRM APIs. Token management, refresh flows and secure integration patterns.

React, TypeScript and Vue.js. ReactFlow editors, bulk dashboards and interactive data UIs.