I'm Karthikeyan S, a driven Flutter & Android Engineer, MERN Stack Developer, and Cloud Deployer building real-world apps across HealthTech, EdTech, eCOMMERCE, and Enterprise Automation.
- 🛠️ Specialized in Full-stack Mobile/Web apps using Flutter, Native Android, React.js, Next.js, & Node.js
- 🚀 Delivered multiple production-grade projects, including enterprise tools and startup MVPs
- 📱 Published multiple apps on the Play Store with real-time features & AdMob monetization
- 💻 Skilled in performance tuning, secure API design, and scalable backend architecture
- 👨🏫 Tech mentor and bootcamp trainer with hands-on guidance for aspiring developers
- 📊 Strong believer in clean code, modular design, and measurable product impact
- 🌱 Currently exploring AI/ML integration in mobile apps and cloud-native architectures
--- ## 🚀 Featured Projects
| 🚧 Project | 💡 Description | 🧰 Tech Stack | 🔗 Link |
|---|---|---|---|
| 💰 CashSify Pro | Earning app with real-time leaderboard and referral-based AdMob monetization | Flutter, Supabase, AdMob | Play Store |
| 🏥 SAIL Health Portal | Internal enterprise portal for employee health records with 40% time reduction in reporting | React.js, Node.js, MySQL | Live Demo |
| 📞 CuroSync | Cross-platform telemedicine app with video consults and secure logins | Flutter, Firebase, WebRTC | Web App |
| 🎓 Track My Grade | Native Android app to calculate GPA & CGPA with Firebase sync and ads | Java, Firebase, AdMob | Play Store |
🧠 Consistently clocking hours across mobile, web, and backend stacks — delivering clean, production-grade code with discipline and deep focus. From Flutter builds to API integrations, every commit counts toward building real-world impact.
I’m always open to discussing new projects, mentorship, or collaborations. Feel free to reach out!
- 🌐 Portfolio – karthi-nexgen.tech
- 📧 Email – karthikeyanks463@gmail.com
- 📞 Schedule a Call – Calendly Booking Link
- 💼 LinkedIn – linkedin.com/in/k4rthi
- 📱 Play Store Apps – Student_developer
If you’ve found my projects, tutorials, or tools helpful, consider buying me a coffee. Your support fuels more open-source contributions and community learning! 🙌

