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Arnold Durazo
Senior Full-Stack Engineer specializing in AI/LLM and cloud-native SaaS
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About
Software engineer with strong end-to-end ownership across frontend, backend, data, and infrastructure, including real-time systems (Kafka/Postgres) and observability (Datadog). Built and productionized an AI-native RAG support assistant (OpenAI embeddings + Pinecone) with prompt/guardrail design, achieving 48% agent adoption and 30% faster responses. Experienced in legacy modernization and reliability work using feature flags, event/transaction replay, and rapid embedded delivery.
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Key Strengths
- Owned end-to-end real-time order tracking (React + Node.js + Kafka + Postgres) with monitoring and runbooks
- Reduced 'where is my order' support tickets ~22% in 2 months
- Productionized RAG support assistant (OpenAI embeddings + Pinecone) with evaluations and citation guardrails
- Drove adoption to 48% of tickets and reduced support response time 30%
- Uses AI-assisted dev tools (Cursor) to accelerate refactors; validates via tests plus staging event replays and Datadog metrics
- Led incremental legacy modernization (monolithic billing to services) using feature flags and transaction replay to avoid regressions
- Translated ambiguous churn-reduction goal into billing retry roadmap and tracked recovered revenue
- Rapid embedded execution across teams; shipped checkout reliability fix within 2 weeks
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