At OCA Solutions, I develop and maintain backend functionality for a business management platform using Node.js, Express.js, and MongoDB. I build REST API endpoints and business logic for workflows involving employees, customers, contracts, work schedules, approvals, and invoicing.
I contribute to a profitability tool that covers revenue, credit notes, employee costs, overhead expenses, and contribution margin calculations. I also integrate a Python-based service with the Node.js backend for AI-related functionality, and my diploma project explored n8n automation for GitHub validation, AI-assisted code analysis, and documentation generation.

