• Developed backend systems using NestJS and Rust to improve performance in compute-heavy operations • Implemented core logic for a real-time gaming engine, focusing on efficient state management and concurrency handling • Optimized and maintained server infrastructure using Nginx and Docker • Improved system performance and reliability through backend and infrastructure enhancements

• Optimized database performance by identifying slow queries and indexing issues, reducing system latency by 40% • Refactored legacy backend systems to improve maintainability and reduce technical debt • Designed and implemented REST APIs for web and mobile applications • Improved data consistency across platforms through better API design

• Defined API contracts to support frontend and backend decoupling, improving development efficiency • Developed and maintained backend services on AWS • Worked with AWS services including AppSync, Amplify, DynamoDB, and Cognito • Created technical documentation and supported onboarding for new developers

• Developed backend features for a GDPR-compliant data protection platform • Implemented role-based access control (RBAC) for secure data handling • Refactored monolithic services into a Docker-based architecture • Improved system performance and reliability through backend and infrastructure changes • Created technical documentation and contributed to onboarding processes