Cross-platform mobile and full-stack developer building practical products from concept and UI/UX through backend integration and release.

I work across Flutter, React, Firebase, Supabase, REST APIs, payments, and applied AI. I choose the stack that fits the product instead of forcing every project into one framework.

Upwork · Behance

• Cross-platform iOS and Android applications
• React web applications and role-based admin platforms
• Firebase, Supabase, MongoDB, and serverless backends
• Authentication, REST APIs, payments, notifications, and third-party integrations
• AI-assisted document, reading, translation, and automation workflows
• Product UI/UX and design-to-development implementation

A deterministic, local-only release-readiness CLI for Flutter, Vite, React, and Node applications. It detects placeholder app identifiers, unsafe transport configuration, credential-bearing files, client-exposed secret names, development endpoints, missing release metadata, and oversized assets. It includes stable CI baselines, expiring exceptions, JSON and Markdown reports, a typed library API, tests, and cross-platform CI.

npm install --save-dev github:subhan900/app-release-audit
npx app-release-audit . --strict

I also maintain focused reference implementations for Flutter service operations and a React operations console. They use fictional sample data and document reusable architecture, testing, and extension points.

Mobile product for importing PDF, EPUB, and TXT files, extracting clean chapter content, synchronized reading and audio playback, contextual vocabulary, reading analytics, and multilingual translation and listening—including English-to-Urdu workflows.

Multi-dashboard web platform with financial account connectivity, guided onboarding, role-based administration, MongoDB-backed services, and REST API integrations.

Flutter and Firebase marketplace for neighbourhood requests, public and private groups, location-aware discovery, real-time notifications, ratings, and connected payments.

React product experience for reviewing complex documents, generating source-linked answers, comparing clauses, and extracting structured obligations.

Responsive product workflow for scheduling field jobs, route planning, service checklists, customer communication, documentation, and job completion.

Mobile: Flutter, Dart, Firebase, push notifications, native integrations
Web: React, TypeScript, responsive UI, admin dashboards
Backend: Firebase, Supabase, MongoDB, REST APIs, Cloud Functions
Integrations: Stripe, Plaid, Google APIs, authentication, notifications
AI: Document analysis, multilingual workflows, summarization, and automation

• Clear scope and realistic delivery milestones
• Product thinking alongside implementation
• Maintainable architecture and documented integrations
• Transparent communication and verifiable progress

Commercial project source remains private. Public repositories focus on original reusable tooling and reference implementations built with fictional sample data—never client code or production information.

View my Upwork profile · View selected UI/UX work on Behance