Kyle Buday

I’m a Senior Software Engineer with 10+ years of experience building full-stack, backend, and data engineering systems across AI product, e-commerce, and financial services domains. I focus on reliability, scalability, and delivering measurable business impact.

At Wayfair, I architected two flagship platforms: the Communications Platform (processing 50M+ messages per month across 5+ brands) and Decorify, a generative AI-powered visual commerce platform. I built an event-driven microservices foundation using Java, Go, Kafka, Amazon SQS, DynamoDB, and AWS to enable high-availability delivery at scale.

I also led core AI and data initiatives—building a Retrieval-Augmented Generation (RAG) pipeline with LangChain, Python, and OpenSearch to reduce AI hallucination and improve product relevance by 28%. On the engineering side, I created low-latency REST APIs and caching layers to reduce duplicate sends by 40%, and I developed streaming data pipelines and ETL workflows to turn behavioral signals into warehouse-ready datasets.

Earlier, at Fidelity Investments, I contributed to trading and order management and financial data/reporting platforms using Java/Spring and C#/.NET, including microservices for order routing and trade lifecycle management and ETL pipelines with data lineage for regulatory auditability. I’ve also mentored 3 junior and mid-level engineers and partnered across product and design to translate business requirements into scalable architectures.