● Designed and developed scalable backend services using Node.js, NestJS, TypeScript, and PostgreSQL. ● Built backend architecture for SaaS platforms, including hotel ordering, payment processing, and real-time communication systems. ● Integrated multiple payment providers and implemented reliable payment flows using idempotency, database locking, and recovery mechanisms. ● Designed asynchronous workflows with RabbitMQ and Redis for background processing and inter-service communication. ● Implemented real-time features using WebSockets and worked with distributed backend architecture and horizontal scaling patterns. ● Containerized applications with Docker and worked with AWS infrastructure and deployment environments.

● Developed and maintained backend services using Node.js, TypeScript, and MySQL across multiple production projects. ● Worked on healthcare-related systems and a delivery/logistics platform, implementing backend APIs and business logic for route planning and order assignment. ● Designed and optimized backend components for high-traffic production systems, with a focus on scalability and performance. ● Improved database queries, backend reliability, and application performance in production environments. ● Participated in architecture decisions, code reviews, technical discussions, and mentoring within the engineering team.

● Spent the majority of the role focused on backend development, building and maintaining REST APIs, business logic, database integrations, and server-side features using Node.js, TypeScript, PHP/Laravel, and relational databases. ● Worked across 20+ client projects in an outsourcing environment, adapting to different codebases, architectures, business domains, and technical requirements. ● Worked on API design, database queries, third-party integrations, debugging, production issue resolution, and backend performance improvements. ● Contributed to frontend development with Vue.js, primarily during the first year of the role. ● Took increasing ownership of backend features and server-side application logic as the role progressed. ● Collaborated with frontend developers, QA engineers, and client-facing teams to deliver production features.

● Developed and maintained web applications using PHP, Laravel, Vue.js, and MySQL. ● Worked on a logistics/shipping platform for a US-based company involved in container transportation by sea. ● Built backend functionality, REST APIs, business logic, and database-driven features with PHP/Laravel and MySQL. ● Developed frontend interfaces and reusable components using Vue.js. ● Integrated frontend applications with backend APIs and third-party services. ● Participated in debugging, feature development, bug fixing, and maintenance of production applications.