• 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. • Focused on scalability, reliability, database performance, clean architecture, and production incident prevention.

• Developed and maintained backend services using Node.js, TypeScript, and MySQL across multiple production projects. • Worked on healthcare-related systems as well as 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. • Contributed to production systems with a focus on scalability, stability, performance, and maintainable backend architecture.

• 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.