Hi, I'm Sathishkumar Ranganathan
Full Stack Developer
UI/UX Designer
Flutter Developer
Cross-Platform App Developer
Mobile App Developer
Full-stack Software Developer passionate about creating scalable web applications and smart systems with React.js, Next.js, PHP, and Flutter.
Featured Projects
Check out some of my recent work
- Integrated dual AI engines (Google Gemini & OpenAI) for intelligent and context-aware chatbot interactions
- Built a fully responsive and animated UI using TailwindCSS, Framer Motion, and ShadCN components
- Deployed across multiple client sites with 500+ active security staff managed daily
- Reduced incident reporting time by 40% through real-time mobile app submissions
- Enabled offline patrol logging and auto-sync to backend, ensuring 100% data accuracy
- Reduced incident reporting time by 50% through real-time mobile submissions
- Deployed across 20+ client facilities with thousands of monthly visitor check-ins
- Reduced lobby congestion by 50% using QR code–based fast check-in/out
- Streamlined visitor and contractor check-in with QR code scanning
- Delivered push notifications to hosts for real-time visitor arrival alerts
- Deployed across 20+ condominium and corporate facilities with thousands of monthly visitor and vehicle check-ins
- Reduced lobby and gate congestion by 50% with QR-based and LPR-based fast access
- Delivered real-time visitor arrival notifications to residents via push alerts
- Enabled seamless facility booking and e-form submissions through mobile
Technical Skills
My expertise across various technologies and tools
C#
PHP
Java
Python
JavaScript
TypeScript
Dart
Kotlin
SQLAchievements
Recognition and milestones from my technical journey
Built and deployed iSecure360 – Security Workforce Management System (Web & Mobile)
Developed Visitor Management System (VMS) with QR-based check-in/out & real-time notifications
Optimized guard tour feature for offline-first mode with seamless sync
Deployed and managed scalable infrastructure on AWS for high availability
Mentored junior developers and led cross-functional project teams
Integrated authentication & role-based access control with Spatie Permissions
Streamlined IT infrastructure by migrating Windows servers & configuring firewalls
Delivered enterprise solutions for security, visitor, and inventory management across industries
Recommendations
What mentors and colleagues say about my work
"Sathishkumar is an exceptional full-stack developer with deep expertise in Laravel, Flutter, and AWS. His ability to design scalable architectures and deliver reliable solutions like iSecure360 has been a huge asset to our team."
Arun Kumar
Senior Software Engineer at Pedro
Colleague • August 15, 2025
"Leading projects with Sathishkumar is always smooth. He consistently meets deadlines while maintaining high-quality standards. His leadership in building systems like iSecureVMS shows his strong ownership and problem-solving skills."
Meera Iyer
Project Manager at Pedro
Manager • July 10, 2025
"Sathishkumar has a rare ability to bridge backend complexity with user-friendly interfaces. His collaborative work on security applications ensured our designs translated into seamless user experiences on both web and mobile."
Ravi Shankar
UI/UX Designer at Pedro
Collaborator • June 20, 2025
"During his time as an IT Engineer, Sathishkumar played a key role in configuring secure email servers, managing firewalls, and ensuring high system availability. His strong foundation in IT infrastructure complements his software development expertise."
Anita Joseph
IT Infrastructure Lead at Digital Alarm Technologies
Former Manager • March 5, 2020
"I worked with Sathishkumar in the early days of his career. His dedication to solving IT issues and eagerness to learn stood out. It’s no surprise he has grown into a skilled full-stack developer today."
Karthik Subramanian
Support Engineer at Hinduja Global Solutions
Former Colleague • January 12, 2018