Xinghui Jin
AI-Powered B2B SaaS Platform Engineer
New to Contra
Xinghui is ready for their next project!
AI Padel Referee Platform
This project presents a web platform for an AI-based refereeing system that automatically analyzes and adjudicates padel matches. The landing interface highlights key features such as ball tracking, real-time decisions, and multi-camera analysis. The analysis screen visualizes match processing using computer vision. The detection images show real-time tracking of players, ball movement, and court boundaries. Unlike traditional sports analytics that mainly record statistics, this project integrates automated refereeing and match analysis in a single interface. During development, challenges occurred with fast ball detection and multi-player tracking, solved using a multi-stage computer vision pipeline combining high-speed frame processing and object tracking.
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Betting site | I developed this site with three friends over six months. It was designed to accommodate tens of thousands of users and features a very modern and attractive design.
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Social media platform | Over 1,500 users
This website, a social network, attracted over 15,000 visitors. I developed it while working at my previous company. I worked on the project for six months, and although it initially had just over 500 users, it underwent several updates and achieved marketing success.
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Ayurveda Yoga Care - Digital Health App
Ayurveda Yoga Care is an integrated health app that combines traditional Ayurvedic wellness with modern digital health. Through expert-led yoga and meditation programs, you can find balance between body and mind and experience personalized health routines. It also supports systematic health management, providing patient profile management, storage of exam results and documents, and media record management. Voice and video consultations allow you to connect with experts anytime, anywhere, and scheduling makes managing treatments and appointments easy. This smart wellness platform helps you practice a healthy, Ayurvedic-based lifestyle in your daily life.
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I developed Travel eSIM Platform for Africa.
Millions of travelers visit Africa every year for safari, business, culture, and connection. Yet one of the most basic needs, reliable mobile internet upon arrival, remains surprisingly painful. Airport SIM kiosks are overpriced, carrier roaming charges are predatory, and finding a local prepaid card while jet-lagged in a new city is nobody's idea of a good time. AfriSIM exists to eliminate that friction entirely.
The platform lets a traveler sitting in London, New York, or Tokyo browse data plans for their African destination, purchase one in under 60 seconds, and receive an eSIM QR code instantly via email and on-screen. When they land in Nairobi, Dar es Salaam, or Cape Town, they scan the code, and they are online — no physical SIM swap, no language barrier at a kiosk, no downtime.
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