2013 - 2017
Bachelor Degree
The University of Electro-Communications
- Machine Engineering
- Modeling of the Neuron-Astrocytes communication (Tripartite synapse)
About Me
A quick overview of my mobile and backend work, technical stack, and development history.
Profile
IntroductionI work as a software engineer at an IT company in Tokyo, mainly on mobile and backend development.
My core experience is in iOS / iPadOS / watchOS products, especially workflow support features that use speech recognition.
Currently, I am also working on backend server development with C# and Python, and contributing to a hospital manual search system that uses Japanese text embedding models.
I also build iOS apps independently. One recent app is “Shuuuukan,” a lightweight habit-tracking app.
For UI implementation, I mainly use SwiftUI, while continuing to improve backend and AI search related skills.
I also write tech articles on other platforms:
My Journey
Education and product experience are organized separately so you can quickly scan responsibilities and technologies.
Education
Academic2017 - 2019
Master Degree
The University of Electro-Communications
- Machine Engineering
- Modeling of the Neuron-Astrocytes communication (Tripartite synapse)
- Modeling of the neuronal oscillation between Awake and Sleep state
Experience
Product Work2019 - 2020
New watchOS app development
For healthcare professionals
- In-hospital social platform
- Speech recognition on Apple Watch
- Sticker posting
Swift Objective-C MVC WebSocket SpeechRecognition
2019 - 2020
New iOS app development
For private tutoring
- Matching service for tutors and students
- Tutor selection by learning goals
- Chat feature
- Lesson booking
Swift MVC Firebase
2020 - 2021
iOS app version upgrade
For healthcare professionals
- In-hospital social platform
- Voice memo via speech recognition
Objective-C MVC MVP XCTest WebSocket SpeechRecognition
2020 - 2021
iPadOS app version upgrade
For healthcare professionals
- Data entry via speech recognition
- Export of recorded data
- Photo markup annotations
Objective-C MVC SpeechRecognition
2022 - 2023
New iOS app development
For healthcare professionals
- Voice memo via speech recognition
- Transfer text and images to PC via Bluetooth
- Photo-based recording
Swift MVP VIP XCTest Alamofire SpeechRecognition
2023 - 2024
New iOS app development
For general users
- Review TODOs in a date-based list
- Quick TODO capture with one tap
Swift SwiftUI MV XCTest
2023 - 2024
New iOS app development
For healthcare professionals
- Information search via speech recognition
- Reminder registration via speech recognition
Swift SwiftUI MV XCTest Alamofire SpeechRecognition
2024 - 2026
Development of a hospital information search system from speech recognition results
For healthcare professionals
- Search hospital information from recognized speech text
- Design and implementation of backend APIs with ASP.NET Core
- Optimization for operational use in medical settings
ASP.NET Core C# Web API SpeechRecognition
2025 - 2026
Development of an in-hospital document search RAG system
For healthcare professionals
- RAG-based retrieval for internal hospital documents
- API implementation with FastAPI
- Embedding pipeline using Sentence Embedding
FastAPI Python RAG Sentence Embedding
Coding Skills
Relative proficiency for the languages I use most, based on practical development experience.