I'm Ahmed Zahid

Flutter & Firebase Developer with 5+ years of experience building production-ready mobile applications across health tech, fintech, e-commerce, and real-time platforms. Based in Rawalpindi, Pakistan.

Hire Me View Experience
Ahmed Zahid
const developer = new AhmedZahid();
developer.skills = [
'Flutter',
'Firebase',
'Stripe API',
'HealthKit',
'REST APIs',
'GetX/Provider'
];

Services & Expertise

📱

Cross-Platform Mobile Development

Production-ready Android, iOS, and web applications using Flutter with optimized performance and native integrations.

🔥

Firebase Backend Solutions

Complete Firebase ecosystem: Authentication, Firestore, Cloud Messaging (FCM), Cloud Functions, and Storage.

💳

Payment Integration

Stripe integration, in-app purchases (iOS & Android), and secure payment processing for e-commerce platforms.

❤️

Health Tech Integration

Apple HealthKit and Google Health Connect integration for advanced health and fitness tracking features.

⚡

Performance Optimization

API optimization, null-safety migration, crash resolution, and comprehensive performance debugging.

🔗

REST API Integration

Expert integration of third-party APIs using Dio/HTTP with optimized response handling and error management.

Featured Projects

Health & Fitness App

Health & Fitness Tracking App

Integrated Apple HealthKit and Google Health Connect for real-time health data synchronization across iOS and Android platforms.

Flutter Dart HealthKit Health Connect Firebase
Food Delivery App

Food Delivery Ecosystem

Three-app suite (user, rider, vendor) with real-time order tracking, Firebase backend, and REST API integrations for a complete delivery platform.

Flutter Firebase REST APIs Real-time Updates GetX
E-Commerce Web App

Web-Based E-Commerce Platform

Flutter web application with full end-to-end Stripe payment processing, verified Stripe account, and complete checkout workflow for live client.

Flutter Web Stripe API Firebase Payment Gateway REST APIs
E-Library

Digital E-Library Platform

Firebase-backed digital library with web admin panel for content management, user authentication, and real-time content synchronization.

Flutter Firebase Web Admin Panel Cloud Storage
Dating App

Real-Time Dating App

Feature-rich dating platform with real-time chat, user matching, admin moderation panel, and Firebase-powered backend infrastructure.

Flutter Firebase Real-time Chat Provider
AI Chatbot

AI Chatbot Application

Intelligent conversational AI chatbot with natural language processing, context awareness, and multi-turn conversation support for engaging user interactions.

Flutter AI/ML Integration NLP REST APIs GetX
Storytelling App

Interactive Storytelling Platform (Rippl)

Immersive interactive narrative experience platform with branching storylines, user choices affecting narrative outcomes, and engaging multimedia content integration.

Flutter Firebase Media Management State Management Cloud Storage
AI Art Illusion

AI Art Illusion Image Generator

Advanced AI-powered image generation app that creates stunning artwork from text prompts with support for various styles, sizes, and artistic effects. Real-time image processing with cloud-based AI models.

Flutter AI/ML APIs Image Generation Cloud Functions Firebase Storage
CookieBubu App

CookieBubu – Baby & Parenting Companion

Comprehensive baby and parenting app with pregnancy tracking, baby growth monitoring, sleep & feeding logs, memory journal, health symptom tracking, doctor finder, and expert-backed content. Features interactive sounds, lullabies, and personalized recommendations for parents from pregnancy through early childhood.

Flutter Firebase Cloud Storage
Ultimate Thermometer

Ultimate Thermometer

Ultimate Thermometer is the most precise thermometer app available for iOS, offering real-time weather forecasts and room temperature measurements tailored to your specific location. Designed with cutting-edge technology, this free thermometer app for iPhone combines the best of meteo iOS to deliver unparalleled accuracy in temperature readings, down to a tenth of a degree. Ad integration.

iOS Swift Weather APIs Ad Integration
AI Chat Assistant

AI Chatbot - AI Chat Assistant

Introducing ChatBot, your personal AI assistant and companion. Powered by the best AI technology on the market, this AI Bot is capable of answering a variety of questions and completing multiple tasks. Whether you are a student, a professional copywriter, or just someone who needs to communicate effectively, the AI Chat Bot is the perfect solution for you!

Flutter AI/ML NLP REST APIs In-App Purchases Ad Integration

Professional Experience

Flutter Developer

Codavjas AB (Sweden - Remote)

April 2023 - April 2026

• Built and shipped production-level cross-platform mobile applications for Android and iOS used by clients across Europe
• Integrated Apple HealthKit and Google Health Connect, enabling advanced health and fitness tracking features across 2+ major projects
• Migrated legacy Flutter codebases to null safety, eliminating a category of runtime crashes and improving long-term maintainability
• Integrated REST APIs and third-party services; reduced average API response handling time through optimized Dio configurations
• Resolved critical production bugs under tight SLAs, maintaining app stability across releases
• Managed source code via GitHub using branching strategies and pull request workflows in a remote team environment

Freelance Flutter Developer

Fiverr (International Clients)

November 2021 - Present

• Delivered 20+ mobile and web applications for international clients across health, fitness, food delivery, e-commerce, and fintech industries
• Integrated Stripe payment processing into web-based Flutter applications with verified account setup
• Built real-time chat, food delivery, admin panel, and AI chatbot applications from requirements through deployment
• Integrated Firebase, REST APIs, and in-app purchases (iOS & Android) across multiple client projects
• Maintained consistently high client satisfaction through reliable delivery, bug fixes, and performance optimization

Flutter Developer

Geek Select

January 2021 - March 2023

• Developed cross-platform mobile applications using Flutter for Android and iOS across multiple product verticals
• Integrated Firebase services including Authentication, Realtime Database, and Cloud Messaging (FCM) in production apps
• Contributed to a food delivery ecosystem comprising three separate apps: user, rider, and vendor
• Built real-time features and REST API integrations; improved debugging workflows that reduced issue resolution time

Intern Flutter Developer

RISETECH

September 2020 - December 2020

• Assisted in Flutter app development and implemented UI components under senior developer guidance
• Integrated Android platform channels and SMS-based functionality into a live application
• Supported debugging and manual testing workflows, gaining hands-on exposure to the full mobile development cycle

BS Information Technology

University of Gujrat, Pakistan

Graduated: 2022

• GPA: 3.5/4.0
• Focus on software development and mobile application architecture
• Completed capstone projects in cross-platform application development

Get In Touch

Ready to collaborate on your next project? I'm available for freelance work, contract positions, or full-time opportunities. Let's discuss how I can help bring your ideas to life.

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