Hasan Siddiqui

Contributed to a high-scale home care platform with 45M+ records using .NET 8, EF Core, serverless AWS, GraphQL, caching, and event-driven architecture. Boosted API efficiency by 65%, mobile responsiveness by 30%, refactored EVV workflows into async C# microservices, built offline-first REST APIs, implemented two-way chat and custom scheduling via SignalR/Azure Service Bus, and applied CI/CD and mentoring for scalable, high-performing systems.

Modernized hospital compounding systems with .NET microservices, AWS Lambda, Azure DevOps, and AI automation, boosting reliability and scalability. Refactored distributed services with async programming, improving throughput. Built TDD suites with 92% coverage. Integrated DataMatrix for compliance. Automated cross-region orders with Power Automate (+64% throughput, −82% errors). Enhanced legacy apps with Roslyn and resilience with Polly.

Enhanced digital publishing platforms for researchers with high-performance, secure solutions. - Improved JWT-based authorization, implemented refresh token mechanisms. - Containerized Azure Functions & Service Bus with Docker for AKS deployment. - Integrated PCI-compliant payments and standardized UX/API contracts across teams.

Led modernization of mission-critical policing service applications via cloud migration and scalable architecture. - Built GDPR-compliant data masking on Azure, enforced OWASP standards. - Resolved legacy memory leaks, improving system stability by 60%. - Managed a team of 6 engineers migrating applications to Azure hybrid cloud.Led modernization of mission-critical policing service applications via cloud migration and scalable architecture.

- Integrated Authorize.net payment processing with fraud prevention. - Automated order workflows using TPL-based concurrency, increasing throughput 38%.

- Developed HRMS platform modules, improving system scalability and security. - Fixed multithreading issues and integrated Azure Blob Storage for media management.