Harshavardhanreddy Vintha

Associate Software Developer at EffiaSoft Pvt. Ltd. (2024-06 – 2026-06)

Implemented offline-first sync flows for billing and inventory modules, reconciling locally stored transactions with backend APIs after network recovery
Improved product-list loading speed by 40% using a custom internal performance time tracker by replacing full-dataset fetches with offset-based pagination, enabling smooth infinite scrolling across master-data screens handling 10,000+ records
Refactored legacy network modules from monolithic API fetches to offset-based paginated downloads, reducing network timeout issues by ~50% during heavy data transfers
Cut SQL write time by 60% for 500+ item sync batches using internal performance tracking by replacing record-by-record saves with batch inserts, keeping the main thread non-blocking
Improved sales order processing efficiency by ~30% by engineering custom workflows for business-specific order rules and integrating RESTful backend APIs using URLSession, Alamofire, and Codable
Integrated SignalR and Redis Streams for real-time KOT/order updates, eliminating manual refresh and replacing repeated polling with event-driven order delivery

Associate Software Developer at EffiaSoft Pvt. Ltd. (2024-06 – 2026-06)

Built a server-driven manifest form system that renders form screens from backend configuration, handles required-field validation, stores previous passenger responses, and submits the final form payload as structured JSON.
Developed an interactive table reservation engine by converting backend layout coordinates into a visual seat map, reducing manual table-selection effort by ~60% through real-time reserved, selected, and capacity-based table states.
Integrated Kotlin Multiplatform shared business logic into native iOS screens, consuming shared ViewModel states such as loading, success, failure, and initial states to keep API handling consistent across 20+ modules.
Applied shared KMM repository flows for cruise reservation APIs, keeping 50+ request/response models, serialization, and service-layer logic reusable while allowing the iOS layer to focus only on screen state and user interaction.
Handled Swift-to-Kotlin data mapping from converting native iOS models to KMM-compatible models across workflows, reducing duplicate API request-construction logic by ~35%.
Executed, tested, and integrated Firebase Cloud Messaging (FCM) into the eVoyager application built using Kotlin Multiplatform Mobile (KMM), implementing iOS notification permissions, APNs registration, FCM token retrieval, and backend device-token mapping.

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