Arnav Singha

Designed a high-throughput webhook processing engine in NestJS for Facebook & Instagram Graph APIs, routing real-time customer direct messages over WebSockets with sub-50ms message latency. Integrated a Shopify API synchronization layer with webhook-based product tracking, building an integration-aware LLM context pipeline in FastAPI that achieved 99.4% checkout recommendation accuracy and eliminated AI hallucinations. Created a real-time reasoning streaming architecture with Server-Sent Events (SSE), delivering incremental chain-of-thought deltas, while optimizing PostgreSQL indexes via Prisma to accelerate state queries by 25%.

Full-Stack / AI Engineer Intern at GemAI (SylusAI) (2026-06 – Present)

• Designed a high-throughput webhook processing engine in NestJS for Facebook & Instagram Graph APIs, routing real-time customer direct messages over WebSockets with sub-50ms message latency.
• Integrated a Shopify API synchronization layer with webhook-based product tracking, building an integration-aware LLM context pipeline in FastAPI that achieved 99.4% checkout recommendation accuracy and eliminated AI hallucinations.
• Created a real-time reasoning streaming architecture with Server-Sent Events (SSE), delivering incremental chain-of-thought deltas, while optimizing PostgreSQL indexes via Prisma to accelerate state queries by 25%.

Software Engineer Intern at MuxGrow (2026-02 – 2026-05)

• Architected state-machine-based AI agent workflows using the Mastra framework, integrating dynamic tool-calling and deterministic model routing to support complex automation sequences with 30+ functional nodes.
• Engineered a highly interactive visual Flow Builder using Next.js and React Flow, implementing strict branching rules and UI micro-animations that reduced workflow configuration friction by 40%.
• Implemented a custom field management system via NestJS and Prisma, synchronizing frontend state with backend contexts to eliminate infinite loop regressions and achieve 100% execution reliability.

Master of Computer Applications – Kalinga Institute of Industrial Technology (2024 – 2026)

Bachelor of Computer Applications – Dr. B. C. Roy Engineering College (2020 – 2023)