SENIOR MOBILE ENGINEER
I build apps that earn their place on the home screen.
Senior Mobile Engineer · Flutter & Cross-Platform Specialist · Available Worldwide
Last updated: April 2026
Five years ago I shipped my first mobile app. Tools changed, platforms changed, clients got bigger. The obsession with getting it right hasn't.
I've built for startups trying to find product-market fit and enterprise teams trying not to lose it. Either way, the job is the same: clean code, real performance, and a UI that doesn't make people think.
On the side, I consult independently. Teams come to me when they need someone who's already made the cross-platform mistakes so they don't have to. I've been that person enough times to know where things usually go wrong.
Ali Wajdan is a Senior Mobile Engineer from Pakistan with over five years of experience building iOS and Android applications. Based in Lahore, he works remotely with clients across North America, Europe, the Middle East, and Latin America. He has delivered 15+ projects across fintech, healthcare, blockchain, media, and construction, with a combined user base of over 500,000 people. His most prominent projects include Monetiza, a fintech app with 120,000+ active users, and DreamyBot, an AI-powered consumer app. Ali specializes in cross-platform mobile development using Flutter and Dart, mobile performance optimization, and full-cycle product delivery from architecture through App Store and Google Play submission. He has led engineering teams of up to eight people and consults independently for startups and enterprise clients worldwide. He is currently available for freelance and contract engagements.
What I Build
Flutter Developer · Mobile App Developer · Swift & SwiftUI Developer · Node.js Developer
Flutter Developer
I build cross-platform iOS and Android apps with Flutter and Dart, covering everything from architecture through App Store and Play Store delivery. State management with Riverpod or BLoC, REST API and GraphQL integrations, Firebase, Supabase, RevenueCat, and Stripe. CI/CD and release operations included. 15+ shipped apps, 500,000+ combined users.
A Flutter developer builds cross-platform iOS and Android applications using Flutter, Google's open-source UI framework built on the Dart language. The work covers the full delivery cycle: defining app architecture, implementing UI to pixel-accurate spec, integrating backends and third-party services (Firebase, Supabase, RevenueCat, Stripe, REST APIs, GraphQL), and deploying to the App Store and Google Play. Flutter uses Dart and state management solutions such as Riverpod, BLoC, and Provider for scalable application architecture. Flutter compiles directly to native ARM code and renders through its own graphics engine (Impeller), so UI behavior stays consistent across platforms without bridge layers. For products that need custom animations, complex state management, or strict performance benchmarks, Flutter tends to outperform React Native in practice. A senior Flutter developer also owns CI/CD pipelines, release operations, and crash and performance observability so a product team can ship and iterate with confidence. Ali Wajdan has delivered 15+ Flutter apps with 500,000+ combined users across fintech, healthcare, AI, blockchain, and enterprise.
Flutter DeveloperMobile App Developer
I ship mobile apps for iOS and Android, full lifecycle from the first architecture call through store submission. Flutter is my primary tool, backed by Firebase, Supabase, Node.js backends, and RevenueCat for billing. 15+ projects, 500,000+ combined users, working remotely with clients across North America, Europe, and the Middle East.
A mobile app developer designs, builds, and ships applications that run on smartphones and tablets, covering both iOS and Android. The role spans the entire product lifecycle: defining architecture, building user interfaces with Flutter or native frameworks, integrating APIs and cloud services such as Firebase, Supabase, and Node.js backends, setting up CI/CD pipelines, and managing App Store and Google Play releases. In modern delivery teams, mobile developers also handle analytics instrumentation, crash monitoring, subscription billing via RevenueCat, and incremental feature rollout. The best mobile app developers work from product outcomes backwards: they understand how mobile technical decisions connect to user retention, release velocity, and revenue. Ali Wajdan is a Senior Mobile Engineer with 5+ years of experience, 15+ shipped projects, and 500,000+ combined users across fintech, healthcare, AI consumer apps, blockchain, media, and construction. He works remotely with startups and enterprise clients across North America, Europe, and the Middle East.
Mobile App DeveloperSwift & SwiftUI Developer
I build native iOS apps with Swift and SwiftUI, with UIKit integrations and Apple framework depth across StoreKit, HealthKit, CryptoKit, CoreData, and ARKit. 3+ years of professional Swift and SwiftUI experience alongside 5+ years of Flutter-to-iOS delivery. iOS portfolio includes Somos Blockchain, an ETH wallet with biometric auth and MetaMask integration.
A Swift and SwiftUI developer builds native iOS and macOS applications using Apple's primary language and declarative UI framework. The work includes architecting apps with SwiftUI and UIKit, integrating Apple ecosystem frameworks such as StoreKit, HealthKit, CryptoKit, CoreData, and ARKit, configuring code signing, and managing the full App Store Connect release process. SwiftUI enables state-driven, composable UI across iPhone, iPad, and macOS targets, while UIKit remains essential for components requiring deeper platform control. Ali Wajdan has 3+ years of professional Swift and SwiftUI experience building client iOS apps, alongside 5+ years of Flutter-to-iOS delivery across 15+ projects. His iOS portfolio includes Somos Blockchain, an ETH-based crypto wallet for iPhone built with biometric authentication, seed phrase management, and MetaMask wallet integration. For projects requiring deep Apple platform integration, an iOS-only feature set, or maximum native performance, Swift and SwiftUI are the right tools.
Swift & SwiftUI DeveloperNode.js Developer
I build the server-side layer that mobile apps run on: REST and GraphQL APIs, PostgreSQL and MySQL databases, cloud deployment on GCP or AWS. Production work includes a Node.js and GCP backend for Care Compass (HIPAA-compliant, AES-256 encrypted), a FastAPI and PostgreSQL service for DreamyBot's AI streaming via SSE, and Firebase or Supabase integrations across multiple Flutter apps.
A Node.js backend developer builds the server-side layer that powers mobile and web applications: REST and GraphQL APIs, authentication systems, database integrations, real-time features, and cloud infrastructure. The work spans API design, database modeling with PostgreSQL or MySQL, cloud deployment on GCP or AWS, and integrating third-party services. Ali Wajdan has delivered backend systems across multiple production projects: a Node.js and GCP backend for Care Compass, a HIPAA-compliant health records app with AES-256 encryption and audit logging; a FastAPI and PostgreSQL backend powering DreamyBot's AI streaming via SSE; and Firebase and Supabase integrations across a range of Flutter applications. Backend work also covers GraphQL, REST API design, CI/CD pipeline setup, and multi-environment configuration. For teams that need a mobile engineer who can own the full stack from Flutter or Swift frontend through to a Node.js or Firebase backend, Ali works across both layers.
Discuss a Backend ProjectSelected Works
Selected Mobile Applications
A fintech app that gave Peruvian users free access to their own credit history. I built the frontend from scratch: Face ID onboarding, credit score visualization, an AI copilot, and a loan flow connecting to multiple banks. 120,000+ active users on iOS and Android.
Monetiza is a Flutter-based fintech app built for the Peruvian market, giving users free access to their personal credit history. Ali Wajdan built the complete iOS and Android frontend using Flutter and Firebase, implementing Face ID biometric onboarding, a credit score visualization dashboard, an AI-powered financial copilot, and a multi-bank loan application flow. The app integrates TikTok Pixel and Meta Pixel for marketing attribution, RevenueCat for subscription management, and CI/CD pipelines for automated App Store and Google Play releases. Monetiza reached 120,000 active users across iOS and Android since launch. The project demonstrates full-cycle Flutter mobile development: from initial architecture design through App Store Connect and Google Play Console submission, with production-level performance optimization and analytics instrumentation throughout.
A dream journaling app where users log entries and get AI interpretations through a live streaming chat. I built all three layers: Flutter frontend, FastAPI backend, and the OpenRouter AI server. Responses stream via SSE so users see the reply as it types rather than waiting. Tiered RevenueCat subscriptions control feature access, with 100,000+ users on iOS and Android.
DreamyBot is an AI-powered dream journaling app on iOS and Android with 100,000 users since launch. Ali Wajdan architected and built all three layers: a Flutter and Dart frontend, a FastAPI and Python backend, and a Node.js AI server integrating OpenRouter for large language model responses. AI-generated dream interpretations stream to the user via Server-Sent Events (SSE), delivering a real-time chat experience without page waits. Subscription tiers are managed through RevenueCat, with Firebase handling authentication and push notifications, PostgreSQL as the primary database, and CI/CD pipelines automating App Store and Google Play releases. The project covers full-stack mobile development across Flutter, FastAPI, Python, TypeScript, Node.js, and PostgreSQL, demonstrating end-to-end product ownership from architecture through production deployment.
An ETH-based crypto wallet app for iOS. I built the full frontend: 16-word seed phrase generation and recovery, buy and withdrawal flows for crypto assets, and MetaMask-based wallet management. Biometric authentication was built into the wallet access flow from the start, not added as an afterthought. The app also covers portfolio tracking across assets, letting users monitor holdings & transaction history in one view.
Somos Blockchain is an Ethereum-based cryptocurrency wallet application for iOS, built with Flutter and Dart. Ali Wajdan developed the complete iOS frontend, including 16-word BIP-39 seed phrase generation and recovery, MetaMask-based wallet management, biometric authentication via Face ID and Touch ID, and secure asset buy and withdrawal flows using Ethers.js and Web3 integrations. The app covers portfolio tracking across ETH and ERC-20 assets, giving users a unified view of holdings and transaction history. Security was central to the architecture: private key handling uses secure enclave storage via Flutter Secure Storage, and biometric authentication gates wallet access at the app level. Shipped through App Store Connect using Flutter iOS build toolchain with full code signing and provisioning profile management.
A content platform for exploring Chassidic teachings through audio, video, and PDF lectures across multiple traditions. I built the full frontend: API integrations, a custom audio and video player, and live streaming via MQTT. Media playback was the core of the product, so most of the work went into keeping it smooth and reliable across content types and connection conditions. Live on iOS and Android.
Inside Chassidus is a Flutter-based mobile content platform on iOS and Android for exploring Chassidic Jewish teachings through audio lectures, video content, and PDF materials across multiple rabbinic traditions. Ali Wajdan built the full Flutter and Dart frontend, including REST API integrations for content delivery, a custom audio player and video player with playback controls and media caching, and live streaming via MQTT protocol. Media reliability across varying network conditions was the central engineering challenge: the player implementation prioritizes smooth playback continuity and graceful degradation under poor connectivity. The app integrates Firebase for authentication and push notifications, with state management handling complex media session state across content types. Available on iOS through App Store Connect and on Android through Google Play Console.
A health records app for families, built so every member's medical history lives in one place. Tracks visits, allergies, medications, vaccinations, insurance, and doctor contacts, with reminders for appointments and medications. I built the Flutter frontend with Firebase, backed by a Node.js service on GCP. Built to HIPAA standards with AES-256 encryption, access controls, and audit logging.
Care Compass is a HIPAA-compliant family health records application built with Flutter and Dart for iOS and Android. Ali Wajdan built the Flutter frontend and a Node.js backend deployed on Google Cloud Platform, implementing full family health management: medical visit history, allergy tracking, medication schedules, vaccination records, insurance details, and doctor contact management, with push notification reminders for appointments and medications. Security and compliance were core requirements throughout: the application uses AES-256 encryption for data at rest, role-based access controls, and comprehensive audit logging to meet HIPAA standards. The backend uses Firebase for real-time data and authentication, PostgreSQL on GCP for relational health records, and REST APIs connecting the mobile client to cloud services. Development also covered test-driven development practices and A/B testing for feature validation.
A Flutter app for construction teams: resource allocation, quality control, BOQ billing, and RFA processing in one place. Built the full frontend including Primavera WBS integration and real-time notifications. Shipped on Android.
Data Plain is an enterprise Flutter application for Android, built for construction project management teams. Ali Wajdan built the complete Flutter and Dart frontend, covering resource allocation management, quality control workflows, BOQ (Bill of Quantities) billing, and RFA (Request for Approval) processing in a unified interface. The app integrates with Oracle Primavera for work breakdown structure (WBS) data, pulling project hierarchies and task assignments directly into the mobile interface. Real-time push notifications keep field and office teams aligned on project status changes and approval workflows. The product is live on Google Play and serves enterprise construction clients through Senarios Private Limited. It demonstrates Flutter capability for complex, data-heavy enterprise applications with multi-role user access and third-party ERP system integration.
Career Architecture
5+ Years of Mobile Engineering
Different companies, different problems. The bar I held myself to never changed.
Sparkix Technologies | Remote
Led 3 client projects as both technical lead and project manager, overseeing a team of 8 across mobile, backend, AI, and QA. Owned deployment pipelines end to end, introduced multi-environment build configs, Git tag versioning, and Fastlane automation that cut release overhead significantly. Brought in AI-assisted workflows that changed how the team shipped daily.
Senarios Private Limited | Lahore, Pakistan
Shipped multiple apps across different industries, owning the full cycle from architecture to store deployment. Reduced bug turnaround time through performance and maintainability work on existing projects.
Coding Age | Lahore, Pakistan
Built and shipped client apps while delivering an internal product in the same period. Grew from junior execution to handling architecture decisions and direct client communication within the first six months.
Quick Answers
Mobile engineering centers on Flutter and Dart on iOS and Android at the core, though most projects go further than that. Over five years I've shipped 15+ projects across fintech, health, blockchain, media, and construction, from the first architecture call through store submission. Firebase, FastAPI, Node.js, and RevenueCat are regulars in my stack. I've built live AI features using SSE streaming and OpenRouter, and led teams of up to eight across mobile, backend, and QA.
Yes. 15+ projects across a 5+ year career, with 6 highlighted in the portfolio. The range covers fintech (Monetiza, 120,000+ active users on iOS and Android), AI consumer apps (DreamyBot), an ETH crypto wallet (Somos Blockchain), a media platform for religious content (Inside Chassidus), a HIPAA-compliant health records app (Care Compass), and an enterprise construction tool (Data Plain). Combined user base across all delivered projects: 500,000+.
Yes. Based in Lahore, Pakistan, I work with clients remotely across North America, Europe, the Middle East, and Latin America. I take on full mobile builds (Flutter is the primary tool), but also architecture reviews, code audits, and consulting when that's what a team actually needs. Time zones have never been a real blocker. The contact form on this site comes straight to me.
Monetiza is the main one: a Flutter app I built for Peruvian users giving them free access to their own credit history. Face ID onboarding, an AI copilot, a loan flow connected to multiple banks, and 120,000+ active users on iOS and Android. I also built Somos Blockchain, an ETH-based crypto wallet for iOS: seed phrase generation, MetaMask wallet management, biometric login, and asset portfolio tracking. Both had real security constraints and needed to hold up under scrutiny.
The most useful signal is apps they've shipped to real users, not side projects or UI demos, but products that went through App Store and Play Store review, had backend integrations, and needed maintenance after launch. Ask them to walk through a tradeoff they made: state management, architecture, a performance problem they solved. Anyone can list technologies. Fewer can explain why they chose one approach over another. I work with startups on fixed-scope engagements or consulting when a team needs architecture direction without a full build.
It means building one app that runs on both iOS and Android from a single codebase, rather than writing two separate native apps. The main frameworks are Flutter, React Native, and Xamarin. Flutter, built by Google, compiles to native ARM code and uses its own rendering engine, with no platform-native components, so the UI stays consistent across both platforms. React Native bridges JavaScript to native components, which works fine for simpler apps but adds overhead as animations and custom layouts get more complex. For apps with heavy animation, custom UI, or strict performance requirements, Flutter tends to be the right call.
What is the difference between Flutter and React Native?
The core difference is how they render. Flutter has its own graphics engine (Impeller, previously Skia) and compiles directly to native ARM code with no JavaScript bridge. React Native bridges JavaScript calls to native platform components, which is workable for straightforward UIs but becomes a performance constraint as complexity grows. Flutter gives you more control and performs better for anything visually demanding. React Native is easier to staff if you already have a JavaScript team, which matters more for some companies than raw rendering performance. Both are production-grade; the choice usually comes down to what your app actually needs.
How much does it cost to hire a Flutter developer?
Rates vary by experience and location. Junior developers typically charge $15–$40/hr. Mid-level engineers range from $40–$80/hr. Senior engineers with a real production track record (shipped apps, store submissions, architecture ownership) run $60–$150/hr depending on location and specialisation. Senior engineers based in South Asia generally sit at the mid-market end of that range. For fixed-price projects, scope determines the number: a focused MVP is a different conversation than a full product with backend, CI/CD, and store submission. I can give a project-specific estimate through the contact form.
Do you build native iOS apps with Swift or SwiftUI?
Yes. Beyond Flutter, I have over two years of professional Swift and SwiftUI experience building iOS apps for clients. Those projects were for client companies and do not appear in my public portfolio, but the work covers SwiftUI-based UIs, UIKit integrations, Apple framework usage (CoreData, StoreKit, HealthKit), and App Store Connect releases. For projects that need platform-native iOS features or are iOS-only by requirement, Swift is a path I can deliver on alongside Flutter cross-platform builds.
What industries have you shipped apps for?
Fintech (Monetiza, a credit scoring and loan platform with 120,000+ active users, and Somos Blockchain, a crypto wallet), healthcare (Care Compass, a HIPAA-compliant family health records app), AI consumer apps (DreamyBot, an AI dream journaling app with 100,000+ users), media (Inside Chassidus, an audio and video content platform), and enterprise construction (Data Plain, a resource allocation and project management tool for construction teams). Each vertical brought different constraints: compliance requirements in fintech and healthcare, real-time streaming in media, and complex data models in enterprise. Across 15+ projects the consistent requirement was clean architecture that the next engineer can reason about.
How long does a typical Flutter project take?
A focused MVP with core screens, backend integration, and App Store and Play Store submission typically takes 6 to 12 weeks. A more complex product with custom UI, multiple third-party integrations, CI/CD setup, and multi-environment configs can take 3 to 6 months. The most useful way to think about it: the more precisely the scope is defined upfront, the more accurate the timeline estimate. I give project-specific estimates after an initial conversation about requirements, constraints, and what needs to be built versus what already exists. Use the contact form to share project details.
Can you work within an existing codebase or team?
Yes. Architecture consulting and code audits are one of the three engagement models I offer, specifically for teams with an existing Flutter codebase that need a senior perspective. That could be a state management redesign, a performance investigation, a CI/CD setup, or a full code review before a major release. I also joined projects mid-build at Sparkix Technologies, taking over architecture direction on work already in progress. Remote collaboration with existing teams across time zones has been a consistent part of my career.
Client Echoes
What Clients Say About Working With Ali
“Ali delivered excellent work ahead of schedule and kept communication clear at every stage. The attention to detail came through in the final product. Would not hesitate to work together again.”
“Ali brought real technical depth to PetBuddy. He solved problems quickly, communicated clearly, and made daily collaboration feel effortless. A smooth, professional experience from day one.”
“Strong mobile architecture instincts and the confidence to push back when something didn't add up. Took ownership of hard problems and delivered code that was clean and easy to build on.”