AI Engineer
Available for work

I'm Nagano Shingo

AI Engineer building intelligent automation solutions through LLMs, RAG, and Voice AI for enterprise applications.

Nagano Shingo

Experience

HappyRobot Inc.

AI Engineer (Customer Success & Pilot · Forward Deployed)

Jul 2025 - Oct 2025

San Francisco, California, United States

Reazon Holdings, Inc.

AI Engineer Intern

2024 March - 2025 May

Remote

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Education

University of Southern California

Master of Science in Computer Science

2023 - 2025

Los Angeles, CA

San Diego State University

Bachelor of Science in Computer Engineering, Minor in Computer Science

2019 - 2023

San Diego, CA

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Projects

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Personal

Voice Enabled Salon Reservation System

Full voice AI salon reservation system built in a single day. Handles booking, modification, and cancellation through natural conversation.

PostgreSQLFastAPIREST APIsAWS Lambda
Personal

Multi Client FastAPI Serverless Platform

Serverless platform hosting multiple FastAPI microservices, each deployed as its own AWS Lambda function.

FastAPICI/CDAWS Lambda
Personal

SKGO Japanese Learning Platform

AI-assisted online learning platform for Japanese language learners. Achieved 400+ active users and 80%+ retention.

Next.jsJavaScriptHTML/CSSAWS S3

Why "95% Accuracy" Becomes a "5% Time Bomb" on the Front Lines

In a warehouse, 95% accuracy isn't enough. That remaining 5% isn't just a "margin of error"—it's a delayed shipment and a broken promise to a customer.

Dec 24, 2024 • 10 min

Silence is Not Empty

Voice AI still has a simple challenge: handling silence. In Japanese conversations, a pause often signals thinking or respect. In English, the same pause can feel uncertain.

Jan 15, 2025 • 8 min

Phonemes Don't Translate

When an English TTS model struggled with "Odenwa", replacing it with "Oden wa" (Japanese hot pot) made it speak perfectly. Meaning? Wrong. Rhythm? Perfect. The "Oden incident" revealed: AI learns rhythm before meaning.

Jan 10, 2025 • 7 min
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