Arpan Basu

Developed the Catalog Builder module for the EYJA Agent Portal, a high-performance SaaS platform enabling homebuilders, brokerages, and clients to create interactive, data-driven digital property catalogs.

• Designed and deployed a robust, modular backend utilizing Golang (Go) for microservices, managed with the Gorilla Gin router, ensuring extreme concurrency and low latency for real-time catalog editing.
• Implemented a WebSocket Hub to handle real-time, bidirectional communication, enabling instant updates for collaborative editing and live preview without requiring manual page reloads.
• Integrated Single Sign-On (SSO) capabilities. Comprehensive Unit Tests verified the end-to-end authentication flow and token exchange.
• Implemented RESTful APIs using Golang and the Gin framework for catalog creation, template management, and publishing workflows, emphasizing resource efficiency.
• Used PostgreSQL as the primary data store, focusing on schema optimization, indexing, and connection pooling to efficiently handle thousands of concurrent user requests.
• Leveraged Amazon S3 for the secure and scalable storage of catalog assets (high-resolution images, interactive media). Integration Tests validated secure file management and access controls.
• Implemented Redis for application-level caching of frequently accessed catalog metadata and configurations, significantly reducing database query load and enhancing API response times.
• Implemented sophisticated Role-Based Access Control (RBAC) and transactional versioning logic.
• Containerized all Golang microservices using Docker for consistent deployments. Implemented centralized logging by streaming application and access logs to MongoDB for rapid operational analysis.
• Collaborated on detailed API documentation and design reviews, improving developer onboarding and cross-team maintainability.

EZRX (Healthcare B2B Platform)

Worked as a Programmer Analyst on EZRX, a healthcare B2B platform that streamlines pharmaceutical operations through digital ordering, distribution, and workflow automation.

• Developed microservices using Java and Spring Boot, improving deployment speed, scalability, and system modularity.
• Integrated Redis for distributed session management and application-level caching, reducing database load and improving response times for high-volume order transactions.
• Designed and implemented workflow management services to automate pharmaceutical order processing, tracking, and approval workflows.
• Utilized Amazon S3 for secure, scalable storage of large binary files, such as digitized invoices and audit logs, ensuring high durability.
• Integrated GraphQL and REST APIs for seamless data interaction and efficient communication across distributed services.
• Utilized Grafana and monitoring dashboards to analyze custom metrics and system logs, enabling real-time tracing of critical workflows and rapid identification of performance bottlenecks.
• Utilized PostgreSQL for data management and optimized queries to ensure data integrity and performance consistency across the platform.

Digital Patient Care Platform (DPC)

Worked as a Mid Software Developer on DPC, a scalable digital healthcare platform that enables providers to manage patient data, treatment plans, and reporting securely.

• Developed high-performance microservices architecture using Golang (Go), significantly enhancing concurrency and reducing resource consumption across the platform.
• Integrated GraphQL with Go services (using libraries like gqlgen) to provide efficient, flexible, and client-driven data querying, optimizing data retrieval for diverse healthcare reports.
• Leveraged Go's concurrency model (goroutines) to manage real-time updates and handle a high volume of simultaneous provider queries without service degradation.
• Optimized PostgreSQL schemas and queries to significantly improve report generation speed and data accuracy, ensuring timely and accurate insights for healthcare providers.
• Collaborated with cross-functional teams to ensure seamless integration between internal modules and external healthcare APIs, supporting comprehensive, integrated patient care workflows.