Backend development with Spring Boot, NestJS, and Laravel. Implementation of RabbitMQ and Kafka for distributed systems. Design of shared libraries and reusable components. Participation in architecture, technical mentoring, and DevOps practices.

Leadership in enterprise application development using Angular and Microfrontends. Migration of 4 applications and libraries from Angular 15 to 20. Implementation of MFA and biometric authentication.

Design of critical APIs and microservices. Implementation of modern and legacy authentication. Development of WebSocket infrastructure. Creation of an MCP server with OAuth. Technical mentoring throughout the development cycle.

Transformation of legacy backend to a standardized API ecosystem. Development of auto-onboarding that drove 650% growth. Reduction of billing errors by over 99%.

Operational support for 50 active users. Integration of key functionalities for business management.

Complete development of an enterprise CRM and integration of calls into the application. Customer, portfolio, and payment management.