
Ahmad A
Verified Expert in Engineering
Mobile Application Developer
Lahore, Pakistan
Toptal member since August 4, 2026
Ahmad is a senior mobile application developer with 6+ years of experience building production iOS and Android apps for startups and growing businesses. He helps teams ship reliable mobile products—from new features and performance improvements to payments, notifications, and store releases. Ahmad specializes in cross-platform mobile development with a strong focus on clean architecture, smooth UX, and on-time delivery.
Portfolio
Experience
- Mobile Development - 6 years
- React Native - 6 years
- TypeScript - 6 years
- React - 6 years
- Expo - 6 years
- Next.js - 5 years
- Payments - 5 years
- Firebase - 5 years
Preferred Environment
Git, Agile
The most amazing...
...success has been leading the REI BlackBook rebuild on React Native Expo, redesigning the UI, adding Twilio Voice calling, and shipping iOS and Android releases.
Work Experience
Web and Mobile Developer
Self-employed
- Delivered production React Native applications for international clients, owning architecture, implementation, and store deployment.
- Built offline-first support for a security mobile application so core flows stayed usable without network connectivity.
- Designed and shipped an SVG rendering and editing module that let users manipulate vector graphics inside the application.
- Integrated complex REST and GraphQL APIs, auth, payments, and push notifications into client products.
- Partnered directly with founders to clarify requirements, prioritize scope, and improve performance and scalability.
- Managed the full project lifecycle independently, consistently meeting agreed delivery dates with high client satisfaction.
Senior Mobile Application Developer
Tkxel
- Architected and shipped production React Native features for client applications, owning delivery from technical design through release.
- Improved application performance through state management and caching refinements that reduced load times and improved perceived responsiveness.
- Integrated authentication, payments, and push notifications into live mobile products with back-end and QA partners.
- Drove sprint planning and estimation in Agile ceremonies, keeping mobile deliverables aligned with product priorities.
- Mentored on reusable component patterns and release practices to speed feature delivery without sacrificing quality.
Front-end and Mobile Developer
Staunch
- Built three web products from scratch with React and Next.js, delivering production-ready UIs and client-facing flows.
- Developed two React Native applications independently, implementing core features and stabilizing performance for release.
- Created reusable standalone modules, including a typed CSV parser, that reduced duplication across projects.
- Contributed to architecture discussions that shaped scalable front-end and mobile technical decisions.
- Collaborated with clients, design, and back-end teams to ship features on schedule with clear handoffs.
Mobile Application Developer
Helpling
- Architected and refined reusable React Native UI components that sped up feature delivery and kept UI consistent.
- Integrated and customized a 3rd-party chat SDK to enable real-time communication in the marketplace application.
- Supported iOS and Android release cycles with an international remote team under Agile delivery.
- Partnered with cross-functional teammates to estimate work, meet sprint goals, and ship production features.
Experience
Helpling | On-demand Home Services Marketplace
https://www.helpling.com/I designed and developed scalable, reusable UI components to accelerate feature delivery and maintain a consistent interface across flows. I integrated and customized a 3rd-party chat SDK to enable real-time in-app communication, and I supported mobile release cycles for iOS and Android using Expo Application Services (EAS). Working with a remote international team, I helped estimate tasks, define sprint goals, and ship production features on schedule.
This role deepened my experience building marketplace UX, real-time messaging, and reliable store release processes in a cross-functional Agile environment.
REI BlackBook | Real Estate CRM and Lead Management App
https://www.reiblackbook.com/download-mobile-app/I redesigned and implemented a modern UI to improve usability, integrated Twilio Voice so users could place calls directly from the app, and optimized performance while maintaining backward compatibility during the migration from the legacy codebase. I also owned testing and production releases for both iOS and Android through EAS, coordinating with stakeholders to ship a stable upgrade without disrupting existing users.
This project strengthened my experience taking a production mobile product through a full architectural rebuild—from UI redesign and 3rd-party SDK integration to store deployment.
RITP | Therapy and Reflex Integration Application
https://www.integratingreflexes.com/app/I implemented native monthly and yearly subscriptions for iOS and Android using React Native IAP, built offline support with optimistic UI updates so core flows remained usable without a reliable connection, and integrated push notifications and progress-tracking features. I worked with GraphQL APIs and MongoDB-backed data flows, and I managed the full App Store and Play Store release process from build configuration through submission.
Owning the product from architecture to store launch gave me strong experience with subscriptions, offline-first mobile UX, and production release ownership for a healthcare-related consumer application.
StellarGRE | GRE Test Preparation Platform
http://stellargre.com/On mobile, I built the app from scratch with a pixel-perfect UI based on Figma designs, integrated GraphQL APIs for seamless data management, and implemented secure authentication and session management so learners could reliably access courses and practice content. On the web, I contributed to the React front end to ensure consistent experiences across platforms. I also managed end-to-end deployment and release of the mobile app on both the App Store and Google Play.
Delivering across web and mobile—from design handoff through API integration and store submission—strengthened my ability to ship complete cross-platform education products with clean UI, solid auth flows, and production-ready release practices.
Education
Bachelor's Degree in Computer Science
Lahore University of Management Sciences (LUMS) - Lahore, Pakistan
Certifications
React Certification
HackerRank
Foundations of UX Design
Skills
Libraries/APIs
React, Stripe
Tools
Git, Expo
Languages
JavaScript, TypeScript, GraphQL, Swift, Kotlin
Frameworks
React Native, Next.js, Express.js, NestJS
Paradigms
Mobile Development, Agile, REST
Platforms
Firebase, iOS, Android
Other
APIs, Authentication, Payments, Push Notifications, User Experience (UX), EAS, Cross-platform App Development, API Integration, App Store Acceptance Process, Performance, In-app Purchase (IAP), iOS App Development, Android App Development, Artificial Intelligence (AI), Full-stack Development, React Native IAP
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