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Overview
Fractional CTO and engineering leader with 25+ years designing scalable systems. Specializing in Next.js, React, TypeScript, GraphQL, and AWS. Proven record of system modernization, AI/RAG integration, and high-impact revenue growth.
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RAG on a Budget: How I Replaced a $360/Month OpenSearch Cluster with S3 and In-Memory Search
A technical deep-dive into migrating from OpenAI + OpenSearch to a cost-optimized RAG pipeline on AWS. Covers Amazon Bedrock, S3-based vector storage, in-memory cosine similarity search, DynamoDB rate limiting, tiered model routing, and the real-world tra
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