Available for new opportunities

Subash
Manian B

Senior Mobile Developer · 8+ Years

Building production-grade iOS & Android apps that scale to millions. Expert in React Native and Flutter from biometric auth to offline-first architectures.

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8+
Years of experience
14L+
Users in production
6+
Client apps delivered
60%
Faster builds built
4.4★
App store rating
// core skills

What I build with

Cross-platform mobile first — from architecture to App Store release.

React Native
92% · Primary framework
TypeScript / JavaScript
90% · Strong typed everywhere
Flutter / Dart
89% · Production apps shipped
Mobile Platform Features
89% · SDK, native modules, performance optimization
CI/CD · DevOps
80% · Fastlane, Jenkins, Sentry
ReactJS / NodeJS
80% · Frontend + lightweight backend
iOS (Swift) · Android (Kotlin)
75% · Native modules, bridging
VAPT & Testing
70% . SonarQube, Jest, Unit testing
// work experience

Where I've worked

Senior Developer
Mar 2023 – Present · 3 yr 3 mo
Wipro · Chennai, India
  • Led mobile development of a government app serving 14+ lakh employees and pensioners with 20+ role-based dynamic modules
  • Implemented UIDAI-based Retina and Face Authentication for Annual Mustering — fully replacing legacy manual processes
  • Built financial reporting features with Jest unit test coverage, achieving zero regression deployments
  • Managed staged rollouts, security reviews, and compliance cycles with government stakeholders
React Native UIDAI SDK Redux Jest Fastlane Govt compliance
Mobile Developer
Sep 2021 – Feb 2023 · 1 yr 5 mo
Prometheus Group · Bangalore, India
  • Built an offline-first enterprise app using AWS Datastore + AppSync for industrial field operations without connectivity
  • Implemented geo-based filtering, navigation, and multi-lingual support (EN, ES, ZH) for US, Spain, and China deployment
  • Integrated Microsoft + AWS SSO and designed platform-adaptive UI from a single cross-platform codebase
React Native AWS Amplify AppSync GraphQL i18n SSO
Software Engineer
Dec 2018 – Sep 2021 · 2 yr 9 mo
Optisol Business Solutions · Chennai, India
  • Led a team of 4 developers delivering 6 client apps across Flutter and React Native with Redux + BLoC architecture
  • Integrated GPS, Barcode Scanner, Document Scanner, PDF generation, real-time Chat, and Firebase Push Notifications
  • Set up Sentry, Crashlytics, Fastlane, and CI/CD pipelines from scratch — reduced build times by 60%
  • Contributed to open-source Flutter packages
Flutter React Native BLoC Firebase Fastlane Crashlytics
Android Developer Trainee
Oct 2018 – Dec 2018 · 3 mo
FITA Training & Educational Services · Apprenticeship
  • Designed and developed Android application modules using Kotlin and Java.
  • Applied Android Jetpack components to build scalable and maintainable mobile applications.
  • Implemented user interfaces, data persistence, and API integrations following Android best practices.
  • Collaborated on training projects while strengthening skills in debugging, testing, and performance optimization.
Android Kotlin Java JetPack
// featured projects

Things I've shipped

Production apps with real users, real constraints, real compliance.

Kalanjiyam app icon
4.4★ Play / App Store
Kalanjiyam
Govt. Employee & Pension App for Tamil Nadu's Public Distribution System. UIDAI biometric auth for 14+ lakh users with 20+ role-based modules.
14L+users
20+modules
4.4★rating
React Native Redux UIDAI SDK Fastlane Jest
Savordex app icon
Live · Play / App Store
Savordex
Location-based food discovery platform with maps, geolocation, multimedia restaurant reviews, and real-time content feeds.
Liveon stores
Geolocation
RNcross-platform
React Native Redux Geo Location SDK Firebase
MDaaS Capture app icon
Enterprise · Global
Prometheus Field Ops
Offline-first industrial app for field operations across US, Spain, and China. Geo-filtered tasks, multi-lingual UI, Microsoft + AWS SSO.
3countries
3languages
100%offline
AWS Amplify AppSync GraphQL i18n
Albert Invent app icon
Live · Play / App Store
Albert — Invent
Lab management companion app To access inventory, tasks, and real-time collaboration from your phone. Scan barcodes, upload files, and invent faster on the go.
Fluttercross-platform
Liveon stores
Livechat
Flutter Dart Genius Scan Barcode Scanner Sentry
Pharmabox logo
E-Commerce · Kiosk
Pharmabox
React Native e-commerce app for purchasing medical products via automated kiosk networks with geolocation kiosk discovery, PayPal payment gateway, and QR dispensing verification.
PayPalpayments
QR+OTPauth
Geokiosk finder
React Native E-commerce PayPal SDK Geo-Location QR Code
// own product

Built something of my own

Beyond client work, a product I ideated, built, launched, and grew from zero.

Savordex
Savordex
Food Discovery Platform
Live · Play / App Store Personal Product

Savordex is a location-based food discovery app I built from the ground up, fully ideated, designed, developed, launched, and grown by our Team. It lets users discover restaurants and food spots nearby with rich multimedia reviews, geolocation-powered listings, and real-time content.

I wasn't just the developer, I was the product owner, team lead, and growth driver. I assembled and led a lean team, coordinated digital marketing campaigns, and kept the platform live with zero compromise on data security for all users.

React Native Redux Geo Location Navigation Product Leadership Digital Marketing
5K+
Registered users
2
Developers led
4
Support resources
100%
Product ownership
🏗️
Architecture & Engineering
Sole architect, designed the full system from data layer to UI, built with React Native and Firebase.
👥
Team Lead
Managed 2 developers and 4 support resources, sprint planning, code reviews, and delivery coordination.
📣
Growth & Marketing
Planned and executed digital marketing campaigns, aligned team on outreach strategy, scaled to 5K+ users.
🔐
Data Security & Maintenance
Maintained secure storage and user privacy for all accounts. Handled ongoing app maintenance and releases.
// tools & platforms

The full stack I work with

State Management
Redux BLoC Context API
Backend & APIs
AWS Amplify AWS AppSync GraphQL Firestore REST API SQL SQLite Postgresql
CI/CD & DevOps
GitHub Actions VS AppCenter Jenkins Fastlane
SDKs & Integrations
UIDAI Geo Map Google GenAI Payment Gateway Document Scanner BarCode Scanner & Generator
Monitoring & Testing
Analytics Crashlytics Sentry Jest SonarQube Jest JUnit React Native Testing Library (RNTL)
Dev Tools
VS Code Android Studio Xcode Figma Postman Swagger / OpenAPI Git / GitHub
App Distribution
Google Play Console AppStore Connect Apple Developer Program Firebase Distribution TestFlight
// publications & blogs

Writing & thinking out loud

Technical deep-dives shared with the mobile dev community.

Technical comparison
Flutter vs React Native — Performance & Architecture
fluttervsreactnativeperformance.blogspot.com
Architecture deep-dive
React Native vs Expo — Architecture deep-dive
medium.com/@maniansubash
Opinion
I Got Fired Because of AI
medium.com/@maniansubash
// contact

Let's build something

Open to senior mobile engineering roles, architecture consulting, and technical collaboration.

✉ maniansubash@gmail.com in linkedin.com/in/subash-manian ⌥ github.com/SubashManian ✆ +91 7358363650