Haruto Sakaguchi
From: United States of America
Location: Osaka, JP
On Useme since 23 December 2025
About me
πͺπππ π¬ππππππππ π - SaaS architecture & multi-tenant systems - AI applications & intelligent agents(LLM, NLP, Generative Ai) - PWA & cross-platform web/mobile application development - Hybrid mobile apps(Ionic, Cordova, Capaitor) - Chrome extensions & browser-based solutions - Secure backend APIs & System integrations - Performance, optimization, scalability & cloud-native development - Individual contributor & technical team lead managing development workflows
πΎπππ π°'ππ π«ππππππππ β¨ - End-to-end SaaS products from MVP to production-ready systems - AI-powered features using third-party AI and LLM APIs - Cross-platform web, mobile and hybrid applications - Iterative development with clear milestones and deliverables - Testing, deployment & long-term post-launch support
Categories
CV / RΓ©sumΓ©
Nov 2023 - Nov 2025
Senior AI & Full Stack Engineer
Sakana AI
Jun 2019 - Oct 2023
AI Engineer
Cognitech Labs
May 2017 - May 2019
Frontend Developer
Captii Limited
Portfolio
Listing creation time dropped over 50%, accuracy rose 40%, with 90%+ image matching and 95%+ voice recognitionβdriving higher user satisfaction and setting the stage for platform-wide AI like dispute bots and shopper aids.