Avinash Ranjan
12+ years building secure, high-performance products—mobile first (Android, Flutter, React Native, KMM) with hands-on web, Node/Express, and stateless backend delivery.
- Implemented payment integrations (Braintree) plus secure VPN/proxy automation with C++/JNI.
- Delivered audio/video calling via Amazon Chime and Twilio, handling one-to-one and group sessions.
- Hands-on with BLE/USB medical devices, offline sync, and performance tuning using profiling and LeakCanary.
Delivery strengths
Leading mobile builds in fintech and healthcare, with deep work in security, automation, and media stacks.
12+ yrs
Android-first engineer delivering cross-platform apps since 2013.
Architect/Lead
Defines MVVM/MVI/Clean architectures and mentors engineering teams.
Security & media
AES/SMALI reviews, VPN/JNI, Amazon Chime & Twilio for AV flows.
Automation
Espresso + ADB tool capturing 58-language UI screenshots for quality.
Android Core
Kotlin/Java · Compose · Jetpack
Retrofit/Hilt, coroutines/flows, offline sync, profiling with LeakCanary.
Flutter SDKs
Platform channels · Reusable modules
Flutter banking SDKs with native bridges for device capabilities.
React Native
Native modules · Cross-platform
Delivered RN apps with native integrations and performance fixes.
KMM & Shared Code
Shared business logic
Kotlin Multiplatform for shared healthcare features.
Security & Crypto
AES · SMALI · Pen tests
Encryption, SMALI analysis, and secure signing pipelines.
Automation & QA
Espresso · Appium · MCP
58-language screenshot harness and MCP-triggered test runs.
Audio/Video & RTC
Amazon Chime · Twilio
AV calling, wake-word, and custom gain pipeline.
IoT & Hardware
BLE · USB · OBD-II
Medical device and vehicle diagnostics integrations.
CI/CD & Delivery
Jenkins · GitLab · Gradle
Release automation and guardrails for mobile apps.
Architecture & Leadership
MVVM · MVI · Clean
Technical leadership, code reviews, UML/system design.