Himel Das

- Engineered full stack application serving 20K+ users, optimizing Vue.js/Python/Django achieving 12x throughput and sub-100ms latency - Built Python analytics processing 20K+ user data, reducing infrastructure costs by 4.61% while maintaining 99.99% availability - Architected AWS microservices (Lambda, ECS, RDS) with Django REST Framework scaling to 100K+ daily requests across 4 services - Led enterprise IAM for Mercedes-Benz with OAuth 2.0/JWT serving 50K+ users, zero security incidents, 99.9% uptime

• 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%.