Himel Das

• Optimized data pipeline by 12x using Python algorithms and query optimization, processing 1M+ records with reduced latency. • Analyzed 20K+ user data to implement resource strategies, reducing infrastructure costs by 4.61% while maintaining 99.99% uptime. • Architected scalable systems with Django REST & PostgreSQL serving 100K+ daily API requests with sub-100ms response times. • Built data integration layer connecting 10+ APIs with error handling, achieving 99.5% synchronization rate.

• Automated test infrastructure for 10+ Python packages in CI/CD pipelines, reducing manual testing time by 70%. • Achieved 95% test coverage writing 200+ unit/integration tests, preventing 50+ potential production bugs pre-deployment. • Renovated 10+ legacy Python packages to comply with Dolby Guidelines, refactoring 5K+ lines ensuring 100% compliance. • Designed automated test frameworks increasing test execution efficiency by 60% and reducing regression testing by 50%.

• Developed Python scripts for IoT devices with SHA-256 checksum, ensuring 100% data integrity across 1K+ deployments. • Engineered middleware layer using Python, improving processing efficiency by 35% and enabling seamless FreeRTOS integration. • Optimized driver performance in FreeRTOS, reducing memory footprint by 20% and improving system responsiveness. • Designed modular libraries for IoT management, increasing code reusability by 40% and reducing development time by 30%.