Sekiguchi Takumi
Full-stack engineer building scalable apps end-to-end
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Veteran-Work.com (http://Veteran-Work.com) is a digital platform designed to support military veterans in their transition to civilian careers. The platform connects veterans with employment opportunities, career resources, and organizations that recognize the valuable skills developed through military service. Our team contributed to the development and maintenance of the web platform, focusing on creating a reliable system where veterans can access job opportunities, professional resources, and networking support in a user-friendly environment.
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OmniRogue.com (http://OmniRogue.com) is an AI automation platform designed to help businesses, creators, and entrepreneurs deploy powerful AI agents and workflows without complex development. The platform provides a large library of pre-built AI automations that enable users to streamline operations such as content generation, lead management, marketing automation, and workflow optimization. Our team contributed to the development and improvement of the platform, focusing on building scalable web infrastructure and automation systems that allow users to quickly deploy AI-powered workflows across different business functions.
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Winki – Get Social With Map is a mobile social networking application designed to help people discover and connect with others nearby through a real-time location map. The platform enables users to see people within a short distance and start conversations or social interactions directly through the app. The app focuses on spontaneous real-world connections by combining geolocation technology with a dynamic social map, allowing users to find people with similar interests for activities such as coffee meetups, conversations, or local outings.
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Overview
An AI-first telehealth platform that enables patients to understand their health conditions, communicate with doctors, and manage medical data—all in one place.
The system combines real-time communication (chat, voice calls, and voice messaging) with AI-driven symptom analysis to create a faster and more accessible healthcare experience.
Key Features
🤖 AI Symptom Checker
Users can describe their symptoms in natural language and receive:
Risk level assessment (Low / Medium / High)
Immediate guidance
Suggested next steps
💬 Real-Time Communication
Patient ↔ Doctor chat
WebRTC-based voice calls
Voice messaging support
This enables both synchronous and asynchronous communication, improving accessibility and response time.
📅 Appointment Management
Book and manage appointments
Structured patient–doctor interaction flow
Appointment-based communication sessions
🧾 Medical Records System
Upload and manage medical documents
Structured health data (diagnosis, symptoms, medications)
Centralized patient history
🔔 Notification System
Appointment updates
New messages and call events
System alerts
Technology Stack
Frontend
Next.js (Web)
React Native / Expo (Mobile)
Backend
NestJS (modular architecture)
PostgreSQL with Prisma ORM
Real-Time & Communication
WebSockets (Socket.io (http://Socket.io))
WebRTC (peer-to-peer voice calls)
AI Integration
LLM-based symptom analysis
AI-assisted health insights
Infrastructure
Cloud-based deployment (Docker-ready)
Secure file storage for medical records
System Highlights
AI-first approach: Guides users before doctor interaction
Real-time communication: Chat, voice calls, and voice messages
Scalable architecture: Modular backend with clean separation of concerns
Healthcare-focused design: Structured records and controlled access
Cross-platform: Web and mobile support
Vision
The goal is to make healthcare more:
Accessible
Intelligent
Proactive
By combining AI with real-time communication, this platform reduces friction in the healthcare journey and helps users make faster, more informed decisions.
Status
MVP completed with:
AI symptom checker
Chat system
Voice calls (WebRTC)
Voice messaging
Appointment management
Medical records
Actively improving with plans for:
AI-powered health insights
Advanced analytics
Enhanced medical data structuring
Scalable production deployment
Conclusion
This project demonstrates how modern technologies like AI and WebRTC can be combined to build a next-generation healthcare platform that is both practical and scalable.
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ChickenDerby.com (http://ChickenDerby.com) is a blockchain-based play-to-earn racing game where players own, race, and trade unique NFT chickens. Built on the Polygon network, each chicken is represented as a digital collectible (NFT) that can participate in competitive races to earn cryptocurrency rewards. In the game, players purchase or collect chickens and enter them into races against other players. Each chicken has unique attributes, abilities, and rarity levels that influence performance in races. The platform combines strategy, collectibles, and competitive gameplay within a Web3 gaming ecosystem.
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StepUpTutoring.org (http://StepUpTutoring.org) is a nonprofit digital platform that provides free one-on-one online tutoring and mentorship for elementary students from underserved communities. The platform connects trained volunteer tutors with students to deliver personalized academic support in subjects like math and reading through virtual sessions. Our team contributed to building and maintaining the web platform that supports tutor–student matching, online learning sessions, and program management. The system helps scale high-impact tutoring programs by combining human mentorship with technology-driven learning tools.
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Contributed to the development and maintenance of ASCD.org (http://ASCD.org), a large-scale digital platform serving educators, school leaders, and education professionals worldwide. The platform provides access to professional learning resources, publications, courses, and community-driven content. My work involved enhancing platform performance, implementing new features, and maintaining scalable backend and frontend components. I collaborated with cross-functional teams to improve user experience, optimize APIs, and ensure the reliability of high-traffic content delivery systems.
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eClinicForYou.com (http://eClinicForYou.com) is a telemedicine platform designed to connect patients with healthcare professionals through secure online consultations. The system enables users to schedule appointments, communicate with doctors remotely, and receive medical guidance without visiting a physical clinic. Our development team worked on building a scalable and user-friendly platform that supports remote healthcare services, secure patient–doctor interactions, and efficient appointment management. The goal was to create an accessible digital healthcare solution that improves convenience for patients and workflow efficiency for healthcare providers.
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