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SawanKumar

Mobile app developer/Bangalore, India

iOSAndroid

Mobile app developer with 3+ years building cross-platform applications in React Native, TypeScript and Expo. Shipped 3 apps to the App Store and Google Play — 4.5+ star ratings and 95%+ crash-free sessions, serving 10,000+ active users.

Also builds the web side of the product: 10+ production applications across enterprise and startup teams, serving 50,000+ users. Currently a Project Engineer at Wipro Technologies, building enterprise web applications in React, Next.js and TypeScript.

4.5
Store rating
10K+
Active users
3
Apps shipped
3+ yrs
Experience
RésuméGet in touchGitHubLinkedIn
Preview

Preview

Drag, scroll or use ← →

FlipperLive chart to trade
FlipperHistory & withdrawals
Flipper — Leaderboard
FlipperLeaderboard
Spectent DMS — Dashboard & calendar
Spectent DMSDashboard & calendar
Spectent DMS — All documents
Spectent DMSAll documents
Spectent DMS — Quick actions
Spectent DMSQuick actions
Spectent DMS — SIA assistant
Spectent DMSSIA assistant
Spectent DMS — Share & permissions
Spectent DMSShare & permissions

Work

What I’ve shipped

F

Flipper

Finance · iOS · Android

Cross-platform crypto trading app

Full-stack React Native mobile application with TypeScript, implementing Redux for state management and custom native modules for secure wallet connectivity.

Real-time market data streams over WebSocket into TradingView charts, with rendering tuned to hold 60 FPS on both platforms. Published to the App Store and Google Play.

  • Real-time TradingView charts with WebSocket connections
  • Accelerated rendering to 60 FPS on both iOS and Android
  • Custom native modules for secure wallet connectivity
  • Published to App Store and Google Play
60 fps
Chart rendering
iOS + Android
Single codebase
Real-time
WebSocket feed
  • React Native
  • TypeScript
  • Redux
  • Expo
S

Spectent DMS

Productivity · iOS

Enterprise document management system

Native iOS document management application for enterprises, featuring AI-powered document insights via SIA (Spectent Intelligent Assistant), role-based sharing with granular access controls, and a calendar-driven renewal tracker.

Documents are tagged by type (Generic, Renewable) with expiry tracking surfaced in a GitHub-style contribution heatmap. The built-in AI assistant answers natural-language queries about stored documents, while bulk actions (rename, move, archive, lock, download) keep large workspaces manageable.

  • SIA — AI assistant for natural-language document queries
  • Role-based sharing with viewer/editor permissions
  • Document expiry tracking with calendar heatmap
  • Bulk actions: rename, move, archive, lock, download
  • Approval workflows and activity logging
177+
Documents managed
AI-powered
Document assistant
Role-based
Access control
  • Swift
  • UIKit
  • Core Data
  • AI/ML
S

Shiksha Samadhan

Education · Web · Android

College admissions platform

Full-stack education platform with Next.js, React.js, and TypeScript serving 1 Lakh+ students, featuring College Predictor, Branch Predictor, and Choice Filling tools for JEE, NEET, BITSAT counseling.

Server-rendered for search, with TanStack Query caching the prediction results students re-run dozens of times during counselling. A college comparison engine handles long result sets with virtualized lists, and a companion Android app ships the same tools on mobile.

  • College Predictor, Branch Predictor & Choice Filling tools
  • Coverage across 500+ colleges and 200+ courses
  • Server-side rendering (SSR) with TanStack Query for caching
  • College comparison engine built on virtualized lists
  • Companion mobile app on Google Play with cross-platform support
1 Lakh+
Students served
500+
Colleges covered
200+
Courses listed
  • Next.js
  • React.js
  • TypeScript
  • TanStack Query

What’s new

Version history

  1. 2.0.0

    Current

    Project Engineer

    Jan 2025 — Present

    Wipro Technologies · Bangalore, India · Full-time

    • Developed 5+ enterprise web applications using React.js, Next.js, and TypeScript, building 20+ reusable UI components with Material UI and Tailwind CSS following atomic design principles.
    • Implemented Redux Toolkit, React Query, and React Hooks for scalable state management across multiple enterprise projects serving 25,000+ users, achieving 30% improvement in page load speed and 25% reduction in API calls through caching.
    • Architected 12+ responsive dashboards with data visualization, integrated REST API endpoints, and streamlined deployment workflows reducing deployment time by 40%.
    • Optimized application performance reducing build size by 35% through code splitting and lazy loading, improving page load speed and user experience.
    • React.js
    • Next.js
    • TypeScript
    • Redux Toolkit
    • React Query
    • Material UI
    • Tailwind CSS

  2. 1.0.0

    React Native Developer

    Mar 2023 — Dec 2024

    Spectent · Remote

    • Delivered 3 production-ready cross-platform mobile applications from scratch serving 10,000+ active users using React Native, TypeScript, and Expo, implementing 50+ screens with React Navigation and deep linking.
    • Engineered offline-first mobile architecture using AsyncStorage and Redux Persist with background sync, reducing data loading time by 30% and handling 500+ API requests/minute with efficient caching.
    • Published 3 applications to App Store and Google Play achieving 95%+ crash-free sessions, managing OTA updates with Expo Updates reducing release cycles by 60%.
    • Fine-tuned React Native performance using useMemo, useCallback, FlatList virtualization, and Hermes engine, achieving 20% faster cold startup and reducing bundle size by 40% across iOS and Android.
    • React Native
    • TypeScript
    • Expo
    • Redux Persist
    • AsyncStorage
    • Expo Updates
    • Hermes

Performance

Measured, not claimed

Numbers from shipped production apps — every one of them is on the résumé.

95%+
Crash-free sessions

Across 3 apps published to iOS and Android

60 fps
Sustained frame rate

FlatList virtualization, useMemo/useCallback, Hermes

40%
Smaller bundle

React Native builds, iOS and Android

20%
Faster cold start

Hermes engine and startup path tuning

60%
Shorter release cycle

OTA updates shipped with Expo Updates

30%
Faster data loading

Offline-first sync with AsyncStorage and Redux Persist

Information

Specification

Mobile
React Native, Expo, React Native CLI, React Navigation, AsyncStorage
Frontend
React.js, Next.js, TypeScript, JavaScript (ES6+), HTML5, CSS3, Tailwind CSS, Material UI
State
Redux, Redux Toolkit, React Hooks, Context API, MobX, React Query, Zustand
Tooling
Webpack, Vite, Chrome DevTools, Flipper, Git, Docker
Release
App Store, Google Play, GitHub Actions, AWS, Vercel, Netlify
Backend
Node.js, Express.js, REST APIs, PostgreSQL, MongoDB, Firebase, Agile/Scrum, JIRA
Education
B.Tech, Information TechnologyNoida Institute of Engineering and Technology2018 — 2022 · 71%
Certifications
  • Full Stack Web DevelopmentSpecialization in Cross-Platform Mobile Development
  • React Native — The Practical GuideUdemy
Based in
Bangalore, IndiaOpen to remote & hybrid
Learning
Currently exploring AI/ML integrations

Developer

Get in touch

build@sawankumar.xyz
+91 9693550919
Based in
Bangalore, India
Open to remote & hybrid
Status
Open to work