Open to freelance & full-timeshashankranjantech@gmail.comNoida, Uttar Pradesh, IndiaLinkedInGitHub
Available for freelance & full-time

Shashank Ranjan

Android and Multiplatform Developer

I build production-grade apps for Android Mobile, Android TV (Leanback), and cross-platform stacks — from real-time platforms serving 100K+ users to ML-powered health solutions. Experienced in Kotlin, Compose, iOS (SwiftUI & UIKit), and TV-optimized UIs.

KotlinJetpack ComposeAndroid TVLeanbackKMPCMPSwiftUIUIKit

Mobile · Multiplatform · AI

0K+
App Downloads
0+
Projects Shipped
0.6
Play Store Rating

About Me

I'm a Software Development Engineer with deep expertise in native Android development — including Android Mobile and Android TV apps using the Leanback library for immersive 10-foot UI experiences. I also work across iOS (SwiftUI & UIKit), Kotlin Multiplatform, Compose Multiplatform, React Native, and Flutter to deliver performant, user-centric applications with clean architecture and robust testing.

Career Highlights

  • Scaled CricRadio to 100K+ users with real-time socket-based cricket scoring
  • Achieved 95% data compression and 10% speed boost through custom server strategies
  • Collaborated with Bristol University on Federated Learning for mental well-being detection
  • Built ML-powered SkinLens app with custom TensorFlow Lite models
  • Mentored interns and led technical evaluations at Lifease Solutions

Education

Kunwar Satya Vira College of Engineering and Management

Bachelor of Technology (B.Tech) in Computer Science

Bijnor, Uttar Pradesh · April 2025

Skills & Expertise

phone_android

Android Mobile

Jetpack Compose · Kotlin

Jetpack Compose95%
Kotlin95%
MVVM / Clean Architecture90%
Room / SQLite85%
Testing (JUnit, Espresso, MockK)85%
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Android TV & Leanback

Leanback · Android TV

Leanback Library80%
RowsSupportFragment75%
D-pad / Focus Navigation80%
TV-Optimized UI (10-foot)78%
Android TV Compose72%
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Kotlin Multiplatform

Shared logic · Multiplatform

Shared Business Logic80%
Ktor Client75%
SQLDelight70%
KMP Networking75%
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Compose Multiplatform

Web · Mobile · Desktop UI

Shared UI Components85%
Web / Wasm Target80%
Responsive Layouts85%
Material 3 Theming90%
phone_iphone

iOS Development

SwiftUI · UIKit

SwiftUI75%
UIKit70%
Auto Layout & Storyboards65%
iOS Architecture Patterns70%
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Cross-Platform

React Native · Flutter

React Native70%
Flutter65%
KMP Shared Logic80%
cloud

Backend & APIs

REST · WebSockets · Firebase

RESTful APIs90%
Retrofit / OkHttp90%
Socket.IO / WebSockets85%
Firebase / Supabase85%
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AI & Machine Learning

Gemini · OpenAI · TFLite · ML Kit

On-device ML (TensorFlow Lite)85%
ML Kit & Vision APIs82%
AI API Integration (Gemini / OpenAI)80%
Federated Learning75%
Prompt Engineering & RAG78%
build

Tools & Technologies

Git · Gradle · CI/CD

Git / GitHub90%
Gradle / CI/CD85%
TensorFlow Lite80%
Performance Optimization85%

Work Experience

SDE-1 - Android

Lifease Solutions LLP

Noida, Uttar Pradesh, India · June 2025 – Present

  • Developed CricRadio, a real-time cricket app using Kotlin, Jetpack Compose, Ktor, and Socket.IO, scaling to 100K+ users
  • Implemented 95% data compression and 10% speed boost via custom server strategies
  • Led feature optimization, UI/backend collaboration, and tech strategy based on competitive benchmarking
  • Wrote robust tests (JUnit, MockK, Espresso) and managed intern hiring through technical evaluations

Android Research Collaborator

Bristol University

Bristol, United Kingdom · Nov 2024 – May 2025

  • Collaborated on Federated Learning solutions for early mental well-being detection
  • Developed digital health app tracking physical activities via Activity Recognition, Google Fit, Sleep API
  • Built offline-first system using Room DB syncing to Firebase with Jetpack Compose UI

SDE 1 Intern

Putatoe Solution Pvt. Ltd

Gorakhpur, Uttar Pradesh, India · Feb 2024 – May 2024

  • Implemented Agile methodologies and CI/CD using Retrofit, JSON, and WorkManager
  • Applied MVVM and Clean Architecture with Broadcast Receivers and Services
  • Developed product adding system with push notifications and Google Maps API integration

Android Developer Intern

Flexo Technology

Maharashtra, India · Nov 2023 – Jan 2024

  • Redesigned UI and added features for crypto news and status apps, improving user retention
  • Optimized code, resolved bugs, and enhanced UI/UX with custom bottom bar and view graphs

Helping Organisations Build Apps

Partnering with teams and institutions to ship production-ready mobile products.

CricRadio

Lifease Solutions LLP

CricRadio

Real-time cricket scoring app scaled to 100K+ Play Store downloads with sockets, compression, and Compose UI.

View app
Mental Well-being Tracker

Bristol University

Mental Well-being Tracker

Research collaboration — offline-first health app with Federated Learning, Google Fit, and Jetpack Compose.

View app
RRBMU Studies

RRBMU College

RRBMU Studies

University learning app with Firebase, push notifications, and content workflows — 1000+ student downloads.

View app
Putatoe : One Solution

Putatoe Solution Pvt. Ltd

Putatoe : One Solution

One-stop local business platform — search, compare, and book services with maps, chat, and push notifications. 10K+ Play Store downloads.

View app

Featured Projects

CricRadio

CricRadio

Real-time cricket score app with socket-based live updates, serving 100K+ users on the Play Store.

  • Real-time scoring via socket communication
  • Unit & instrumentation tests with Kover coverage
KotlinJetpack ComposeMVVMSocket.IO
CodersAidHub

CodersAidHub

Social media platform for coders with infinite scroll feed, messaging, and AI image processing.

KotlinFirebaseFirestoreCoroutines
RRBMU Studies

RRBMU Studies

Academic app for Rajasthan university with 1000+ downloads and 4.6★ rating on Play Store.

KotlinFirebaseAdMobPush Notifications
SkinLens

SkinLens

ML-powered skin disease detection app with custom TensorFlow Lite model and CameraX integration.

Jetpack ComposeClean ArchitectureTensorFlowTFLite
DHM3

DHM3

Bristol University research collaboration — digital health monitoring app with Federated Learning, Activity Recognition, Google Fit, and offline-first Room sync.

  • Android Research Collaborator at Bristol University
  • Offline-first health tracking with Room + Firebase sync
KotlinJetpack ComposeRoomGoogle Fit
Yaad Diary

Yaad Diary

Note-taking app with Room DB, MVVM, search, and priority settings.

KotlinRoom DBMVVMCoroutines
College Registration

College Registration

Real-time student registration app built with Hilt, MVVM, and Firebase Realtime DB.

KotlinHiltMVVMFirebase Realtime DB

Freelancing Services

Select a service to explore — the featured panel updates automatically.

10Services
50+Projects
100K+Downloads
24hResponse
phone_android
Android App Development

Typical MVP: 4–8 weeks

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End-to-end native Android mobile apps with Jetpack Compose, MVVM, and Clean Architecture.

home
Android TV Development

TV-ready builds & sideload support

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Android TV apps with Leanback library, D-pad navigation, and immersive 10-foot UI experien…

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Kotlin Multiplatform Development

Shared modules + platform shells

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Shared business logic across Android, iOS, and Desktop with KMP.

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Compose Multiplatform Development

One codebase, all screens

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Unified UI across platforms with Compose Multiplatform for web and mobile.

share
Cross-Platform Mobile Development

Platform-native feel

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React Native, Flutter, SwiftUI, and UIKit solutions for multi-platform reach.

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UI/UX Implementation

Design handoff → production UI

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Pixel-perfect, animated interfaces with modern design patterns and responsive layouts.

cloud
API Integration

Real-time & offline-first

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RESTful APIs, WebSockets, Firebase, and third-party SDK integrations.

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Performance Optimization

Measurable speed gains

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Multithreading, caching, compression strategies, and app profiling.

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AI Integration & On-Device ML

From AI chat to on-device inference

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Trending AI features — Gemini/OpenAI APIs, ML Kit, TensorFlow Lite, chatbots, and smart au…

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App Maintenance & Support

Monthly retainer available

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Bug fixes, feature updates, testing, and long-term app maintenance.

Client Testimonials

What clients and collaborators say about working together.

"Shashank partnered with our data team to ship mobile KPI dashboards and reliable API layers. He translated analytics requirements into clean Kotlin architecture, met every sprint deadline, and communicated blockers early. A dependable engineer who delivers production-ready work."

Krishna Nand Yadav — Data Analyst, Analytics & Insights

"Shashank built RRBMU Studies for our university — 1000+ downloads and strong Play Store ratings. He handled Firebase, push notifications, AdMob, and content workflows with professionalism. Students love the app; we recommend him for any academic or campus-tech project."

RRBMU College — Academic Partner, Rajasthan, India

"During our Federated Learning collaboration, Shashank delivered an offline-first health-tracking Android prototype with Room sync, Google Fit integration, and Jetpack Compose UI. His engineering discipline and research mindset made remote cross-border teamwork seamless."

Bristol University — Research Collaborator, Bristol, United Kingdom

Get In Touch

Recruiters & clients — reach out directly. I typically respond within 24 hours.

Let's work together

Recruiters & clients — reach out directly. I typically respond within 24 hours.

shashankranjantech@gmail.com

+919927904424

Noida, Uttar Pradesh, India

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