I'm Surendra Kumar Patel — an Android engineer with 5+ years shipping scalable, high-performance apps across healthtech and edtech. Kotlin and Jetpack Compose on the surface; Clean Architecture, MVI and BLE underneath.
I'm an Android engineer with 5+ years of experience building scalable, high-performance mobile applications with Kotlin, Jetpack Compose and modern Android architecture. I've shipped products across healthtech and edtech — designing reusable platform components, lifting user engagement, and optimizing performance.
More recently my work has gone deeper into the platform: BLE stack development, IoT security, biometric authentication and encrypted storage. I care about Clean Architecture, predictable MVI state, and code that a team can pick up and extend without friction.
Alongside engineering, I run Tejvon — a technology studio and personal brand — where I build tools of my own and write for developers. I'd rather ship the simplest design that works than the cleverest one that doesn't.
Tools & platforms: Android Studio · Xcode · Git & Bitbucket · Jira · Postman · Google Play Console · CS fundamentals: Data Structures & Algorithms · System Design · Material Design
MSM Consultancy · Client: Tata Elxsi
Indus Hindi · EdTech
Thinkhat Software Pvt. Ltd. · HealthTech
Tosko Technologies Pvt. Ltd.
Independent · Early-stage startups
Apps I designed and shipped on my own time. Download the APKs to try them on any Android device.
A production-grade habit tracker with encrypted local storage (SQLCipher), biometric authentication and gamification — XP, achievements and streaks. Built on multi-module Clean Architecture with an MVI (Orbit) pattern.
An AI-powered Android assistant with voice-to-text chat — Azure Speech Services for input and the OpenAI GPT-4 API for responses, wrapped in a modern Compose UI on a structured MVVM architecture.
A lightweight utility to preview, download and manage WhatsApp statuses locally — no root required. Uses Android file-system APIs to read media directories, with Glide and Picasso for smooth image loading.
A shared Drive folder with installable APKs of my personal apps — open for anyone who wants to try, test and review them on a real device.
Selected products built for companies and clients. Some are internal or hardware-bound, so not all are publicly downloadable.
A secure Bluetooth Low Energy stack for a connected hardware device — custom payload fragmentation, anti-MITM pairing, CRC-16 integrity checks and adaptive retry logic. Built in Kotlin with firmware-team collaboration.
Healthcare apps built with Kotlin, Compose, MVVM and Retrofit — featuring AI speech-to-text for clinical voice input and a multi-tenant Firebase authentication system with tenant-isolated token handling.
An edtech learning app launched on Google Play — Firebase authentication, an ExoPlayer-based video delivery system and a push-notification pipeline for course updates, with a 20% smaller APK after R8 tuning.
Additional production apps shipped across edtech, healthtech and commerce are published under my Google Play developer profile.
Led a six-member team to design an IoT-based automatic waste segregation system using Arduino, sensors and embedded systems. Won first place at the national level and received a ₹50,000 prize from the Government of India.
Completed a BCA with a First Division, building the computer-science foundation — data structures, algorithms and software design — behind my engineering work.