I've built and maintained backend services for CofeApp and Allup app at One Tech, using GraphQL, REST APIs, Node.js, Apollo, Express.js, PostgreSQL, Kafka, RabbitMQ, and Python.
At Cloudpoint, I developed microservices, maintained a legacy Python/Flask monolith, automated backend tasks with Google Cloud Scheduler, and added API endpoint tests. I also created an automated Microsoft Graph-to-BigQuery Beam pipeline that masks user emails through Firestore and runs through Google Dataflow.
At APPTCOM, I implemented backend microservices, added API testing across Node.js services, and introduced Redis caching to reduce redundant calls and improve performance.
I've also designed a Golang monolithic application and Flutter frontend for Bartam Shop, developed Odoo modules at Shebak, and built Easy Clinic, an Electron, Node.js, and MongoDB desktop clinic-management project.

