
Cihan Nam
Founder–Engineer in
AI-Powered Fitness & Digital Health
About Me
I’m a founder–CTO focused on AI-powered fitness and digital health. Over the last decade I’ve built and led products such as PureFit (AI coaching with real-time 3D pose estimation in physical studios and on the web) and Bewell (award-winning online dietitian platform with 35K+ app installs and 1.1M+ web visits).
My work combines full-stack engineering (Next.js, Node.js, MongoDB, AWS) with computer vision, machine learning, and exercise science to deliver autonomous coaching systems that count reps, track posture, and personalise training and nutrition.
What I build
I design and implement end-to-end AI coaching systems:
- ● Real-time 3D pose estimation, rep counting, and posture feedback
- ● Web and mobile apps for personalised training and nutrition
- ● Admin dashboards and data pipelines for coaches, studios, and health professionals
Backend
I build APIs and services in Node.js / Express with MongoDB, hosted on AWS (EC2, S3, CloudFront). These backends power AI-driven workout engines, nutrition plans, and analytics dashboards.
Frontend
I use Next.js and React to build high-performance web apps and admin panels, including the PureFit AI studio software and Bewell’s online dietitian platform.
Mobile
I use React Native + Expo to deliver mobile coaching apps with real-time feedback and push-based habit support.
ML & AI
I work with TensorFlow.js and computer-vision frameworks (e.g. MediaPipe/BlazePose) to build real-time pose estimation, rep counting, range-of-motion tracking, and posture analysis for fitness and rehab use-cases.
Tech Stack
I work primarily with JavaScript / TypeScript in a MERN-style stack, plus AI and computer vision:
- ● AI & CV: TensorFlow.js, MediaPipe / BlazePose, custom pose and ROM analysis
- ● Web: Next.js, React, JavaScript, HTML, CSS
- ● Backend & Data: Node.js, Express, MongoDB, Mongoose
- ● Cloud: AWS (EC2, S3, CloudFront)
- ● Mobile: React Native, Expo
UI/UX & Product Management
I’m experienced in UI/UX and Figma, and I design flows for assessments, workouts, and nutrition journeys. I use behaviour data and tracking to iterate product features and improve adherence to training and healthy habits.
Digital Marketing
I have hands-on experience with SEO, Google Ads, Meta Ads, and ASO, mainly for acquiring users to AI coaching and digital-health products.
Portfolio
I’ve built and launched multiple products including:
- ● PureFit AI Studios – AI-powered functional fitness studios with real-time pose analysis
- ● PureFit AI Web Coach – browser-based form and posture coaching
- ● Bewell – online dietitian platform and 35K+ install mobile app
- ● Fitness Hocam – holistic wellness platform (exercise, nutrition, psychology)
- ● Zone Club – Tech-Enabled Hybrid Training Platform
See my portfolio →