Siraj Ahmad

I’m a Full Stack AI Engineer with 7.2 years of experience building scalable AI-powered web applications, intelligent automation systems, and high-performance backend architectures using Node.js, Python, and FastAPI. I focus on scalable design, performance optimization, and smooth user experiences, especially when integrating modern LLM capabilities into production products.

At Hestabit Technologies, I engineered RESTful backend services that processed 1,000+ transactions per second, improving data handling efficiency by 40% and reducing server response time by 25%. I also integrated OpenAI NLP to reduce customer support queries by 40% within the first quarter and achieved a 30% reduction in query response time and a 25% increase in user engagement through AI-enhanced engineering.

Across projects like Gaia and Advida, I’ve delivered agentic GenAI workflows for campaign automation—covering LLM orchestration, RAG pipelines, vector database-driven retrieval, predictive optimization, and real-time analytics. I bring production-grade LLM engineering practices such as guardrails, hallucination reduction, semantic caching, token optimization, and observability, including secure identity verification with Amazon Rekognition in an AI-powered LMS.