CTO & Co-Founder / Full-Stack AI Engineer
Tokyo, Japan
2x technical co-founder with 5+ years shipping end-to-end production AI systems. Built LLM pipelines with 75% cost reduction through intelligent caching, ML systems achieving 92%+ accuracy at scale, and platforms serving 200K+ users. Full-stack AI: Agentic Systems, Harness Engineering, fine-tuning, RAG, agents, computer vision, edge deployment. Led 10-person team from 0→1. IEEE-published researcher.
Salary
USD 150,000 – 200,000
Adora Inc.
Jul 2023 — Present
Led technical development of Kodomamo, a child safety platform serving 200K+ users. Built unsafe website detection API with 4-layer LLM pipeline (P50: 5ms, 1000+ req/s), fine-tuned BERT/ShieldGemma for Japanese toxicity classification (92% accuracy), built AI code review agent analyzing 2300+ PRs, NSFW detection ML pipeline with 40% FP reduction, event-driven serverless GCP backend, LINE message monitoring system scaling to 1000+ concurrent sessions, and 10+ Flutter native plugins. Led 10-person engineering team.
Rapyuta Robotics
Jun 2021 — Oct 2022
Built multi-model object detection system (RetinaNet, CenterNet, SSD+FPN) for autonomous warehouse robotics. Achieved 10X faster training via data pipeline optimization. Deployed edge inference using OpenVINO INT8 quantization on Intel NCS2 with ROS integration for real-time obstacle detection.
MTX Group
Feb 2021 — May 2021
Built Action Quality Assessment system using I3D for spatiotemporal feature extraction and LSTM with temporal attention for athletic performance scoring. Integrated pose estimation for biomechanical analysis with real-time coaching feedback pipeline.
Smartbooks Inc.
Jan 2021 — Present
Built Japanese audiobook mobile platform. Developed internal audiobook production QA tool in Go with FFmpeg and GCP TTS, EPUB-to-audiobook ETL pipeline using parallel processing, and Flutter audiobook player with offline support, RevenueCat IAP, Algolia search, and Firebase integration.
Nokia
Dec 2019 — Aug 2020
Built graph digitization system using LSTM-based OCR for network topology extraction from scanned engineering diagrams. Achieved 6X speedup via recursive image segmentation. Designed failure detection pipeline correlating topology with real-time network telemetry.
Yahoo! JAPAN
May 2019 — Jul 2019
Built demographic estimation model using DSSM + attention-BiLSTM on user browsing patterns, achieving 92% gender and 70% age prediction accuracy. Integrated model into news/ads personalization pipeline. Received Pre-Placement Offer.
B.Tech · Electrical Engineering
2016 – 2020