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Maisam Shah

Verified Expert in Engineering

Full-stack Developer

Lahore, Punjab, Pakistan

Toptal member since July 6, 2022

Expertise

Full-stack Dashboard Cloud Architecture Enterprise Architecture SaaS Front End MERN Stack Payment Processing Web Development Back-end Developers Startup Development

Bio

Maisam is a results-driven software engineer with more than eight years of experience in commercial application development. He brings over six years of expertise in front-end React Native development and more than five years in back-end development. Passionate about creating simple, efficient solutions to complex problems, Maisam excels in both analytical thinking and problem-solving. He consistently demonstrates the ability to see projects through from concept to completion.

Portfolio

Third Tone Project Inc.

React Native, Full-stack Development, Google Cloud, Web Development...

Leana Sindi

JavaScript, Artificial Intelligence (AI), AI Model Training, React Native...

BTR Labs, Inc

React Native, JavaScript, Expo, TypeScript, Mobile App Development, REST APIs...

Experience

JavaScript - 10 years
React Native - 8 years
React - 8 years
Full-stack Development - 8 years
Node.js - 6 years
Web UI - 5 years
TypeScript - 5 years
Back-end - 4 years

Preferred Environment

Windows, MacOS, Slack, Skype

The most amazing...

...thing I've worked on is developing an online marketplace application for e-vouchers from top retailers around the world with over 500,000 active users.

Work Experience

Full-stack React Native Developer

2026 - 2026

Third Tone Project Inc.

Designed an AWS audio streaming architecture that delivered Spotify-like play/pause/seek/skip for 200MB+ tracks using HLS segmented delivery instead of monolithic file streaming.
Implemented an audio processing pipeline that transcoded and segmented uploads into 2-second HLS segments with a 3-tier ABR ladder (64/128/256 kbps AAC) to ensure fast startup and smooth playback across network conditions.
Deployed a CloudFront CDN in front of private S3 origin storage to serve manifests/segments from edge locations, minimizing latency and reducing origin load during peak playback.
Secured streaming content by keeping S3 buckets private via Origin Access Control (OAC) and issuing time-limited signed CloudFront playback URLs (e.g., 10-minute TTL) from an authenticated API.
Built a resilient ingest workflow using S3 multipart upload for large files and event-driven processing (S3 events → queue/worker → transcode job submission) to prevent failures on long uploads.
Developed a “control-plane vs data-plane” split where the API handled only metadata/auth/playback authorization while CloudFront handled high-volume audio delivery, enabling scalable streaming without bottlenecking the back end.
Integrated React Native playback using react-native-track-player with queue management, enabling fast skip/next/previous/seek behavior by streaming HLS manifests and requesting only needed segments.
Optimized perceived responsiveness by designing client behavior for buffer-first playback and prefetching (fetching the next track’s manifest/initial segments ahead of time) to make skipping feel instant.
Implemented operational observability by logging and tracking the full lifecycle of a track (uploaded → processing → ready/failed), enabling clear troubleshooting of transcode and delivery issues.
Defined deterministic storage conventions and metadata models (track/category IDs, canonical S3 paths for raw + HLS outputs) to ensure repeatable processing, cacheability, and simple audit/debug flows.

Technologies: React Native, Full-stack Development, Google Cloud, Web Development, Mobile Applications, Full-stack, Audio Capture, Videos, IT Security, AI Design, AI Programming, Agentic AI, Distributed Architecture, Event-driven Architecture, Vercel, AI-generated Code, Claude Code, Cursor AI

AI-focused Full-stack Mobile App Engineer

2025 - 2026

Leana Sindi

Architected and built the full career onboarding front end with multi-step questionnaires, step summaries, fine-tune (highlights/topics), and profile history using Next.js App Router, TypeScript, and Tailwind CSS.
Designed and implemented the full career suggestion back end with REST APIs for onboarding, compute, and accounts, including question listing, answer submission, step summaries, fine-tune (highlights/topics), feedback, and profile history.
Integrated LangChain with OpenAI to power career-related logic, structuring prompts and chains so assessment inputs could be processed and used for suggestions and summaries.
Delivered a multi-type questionnaire UI supporting text (TXT), date (DT), single-select (SS), and multiple-select (MS) with step-by-step flow, per-step summaries, and answer submission to the back end.

Technologies: JavaScript, Artificial Intelligence (AI), AI Model Training, React Native, TypeScript, Node.js, Pinecone, REST APIs, LangGraph, OpenAI API, Claude API, iOS, Mobile App Development, Recommendation Systems, Supabase, Multi-agent Systems, Prompt Engineering, Cloud Architecture, Enterprise Architecture, IT Security, AI Design, AI Programming, Document Parsing, Agentic AI, Distributed Architecture, Event-driven Architecture, Vercel, AI-generated Code, Claude Code, Cursor AI

Senior React Native Developer

2025 - 2025

BTR Labs, Inc

Engineered and shipped a fully cross-platform mobile application using React Native (Expo SDK ≥ 50), achieving production-ready builds for both iOS and Android with seamless performance across devices.
Implemented comprehensive push and remote notification workflows leveraging Expo Notifications and native configuration for granular user engagement and background event handling.
Developed robust deep-linking and dynamic-routing architecture using Expo Router v3 and universal links, enabling smooth navigation and external launch compatibility.
Integrated full crypto token swap, launch, and staking modules with secure REST API interaction, delivering real-time token balances and on-chain status updates in-app.
Ejected the Expo managed workflow to a custom bare setup, enabling access to platform-specific APIs, native modules, and the new iOS 26 Glass View effects for modern UI polish.
Optimized performance and memory utilization through batched renders, lazy loading, and Hermes engine profiling—resulting in a 25 % reduction in app load time.
Automated EAS Build and Submit pipelines for iOS App Store and Google Play Store deployment, integrating CI/CD checks, OTA updates, and release channel promotion.
Collaborated with back-end and UI/UX teams to translate complex API responses and motion designs into responsive, accessible, and pixel-perfect mobile interfaces.
Instituted strong TypeScript typing, linting, and testing coverage (Jest, Expo testing library), reducing runtime errors and regression bugs by around 40%.
Led end-to-end release management, from internal QA and test flight provisioning to public rollout, ensuring consistent delivery cadence and version control discipline.

Technologies: React Native, JavaScript, Expo, TypeScript, Mobile App Development, REST APIs, Performance Tuning, Responsive UI, CI/CD Pipelines, Push Notifications, Crypto, Deep Linking, Web Push Notifications, Local Notifications, Mobile Navigation, Chart.js, App Development, Database Normalization, Database Schema Design, Bug Fixes, Code Refactoring, Cloud Architecture, Enterprise Architecture, Videos, IT Security, AI Design, AI Programming, Agentic AI, Distributed Architecture, Event-driven Architecture, AI-generated Code, Claude Code, Cursor AI

Mobile App Developer

2025 - 2025

Guevara Global International, LLC

Designed and delivered a cross-platform mobile application (via React Native) that extended the full feature-set of a leading “infinite-canvas/media-rich” design tool, including pan/zoom navigation across an unbounded canvas.
Implemented a seamless infinite-canvas experience supporting bidirectional (X-Y) scrolling, pinch-zoom, drag-to-move, and workspace reset functionality — drawing on best practices from modern creative tools.
Built full media drag-and-drop, upload, and placement workflows — enabling users to import images/videos, reposition and scale media assets on the canvas, and persist them via cloud back end (Firebase) with offline-ready caching for mobile.
Integrated a subscription/in-app-purchase mechanism using RevenueCat to manage entitlement status, cross-platform sync, and unlock premium features across devices.
Architected and delivered a custom web-tool UI for designers to create templates/frames which automatically sync to the mobile apps, enabling non-technical editors to author and publish new layouts.
Ensured robust offline functionality — users can continue editing, placing media, navigating the infinite canvas without connectivity, and changes sync reliably once back online — enhancing user engagement and reducing churn.

Technologies: JavaScript, React Native, Node.js, Amazon Web Services (AWS), Mobile App Development, Templates, Drag & Drop, Firebase, Android, iOS, RevenueCat, Firebase Web SDK, Firebase Hosting, TypeScript, Figma, Mobile UX, Technical Leadership, Full-stack Development, Mobile Web, Software Design, Scalability, Cloud, General Data Protection Regulation (GDPR), Authentication, Playwright, Auth, Chart.js, Dashboards, App Development, Database Normalization, Database Schema Design, Bug Fixes, Code Refactoring, Cloud Architecture, Enterprise Architecture, Videos, IT Security, AI Design, AI Programming, Document Parsing, Agentic AI, Distributed Architecture, Event-driven Architecture, Vercel, AI-generated Code, Claude Code, Cursor AI

Full-stack Engineer

2025 - 2025

Roomza, Inc.

Architected and launched a comprehensive cashback distribution platform from the ground up, utilizing a modern tech stack including Next.js, MongoDB, and a serverless AWS backend.
Integrated Stripe and Tremendous APIs to create a seamless, end-to-end financial workflow, enabling secure balance top-ups from hotels and automating cashback disbursements to guests.
Engineered a cost-effective, event-driven back end using the Serverless Framework and AWS Lambda to automatically track guest check-ins and check-outs, significantly reducing operational overhead and infrastructure costs.
Leveraged the MEWS API to directly interface with hotel property management systems, synchronizing guest data and transaction history to automate cashback calculations and provide real-time insights.
Developed a sophisticated WebSocket management system to establish persistent, real-time communication channels, enabling instant support and notifications between hotel staff and our internal team.
Managed the full deployment lifecycle across different environments, implementing robust subdomain strategies for staging and production to ensure stable and reliable feature releases.
Built intuitive and responsive web portals using Next.js for both hotel managers and guests, delivering a streamlined user experience for account management, transaction viewing, and cashback redemption.

Technologies: TypeScript, JavaScript, PostgreSQL, React, Node.js, Supabase, Minimum Viable Product (MVP), Full-stack Development, Responsive UI, Performance Tuning, Technical Leadership, Mobile Web, Software Design, Scalability, Cloud, General Data Protection Regulation (GDPR), Authentication, Auth, Chart.js, Dashboards, Database Normalization, Database Schema Design, NGINX, AI Chatbots, Bug Fixes, Code Refactoring, Cloud Architecture, Enterprise Architecture, IT Security, AI Design, AI Programming, Agentic AI, Distributed Architecture, Event-driven Architecture, Vercel, AI-generated Code, Claude Code, Cursor AI

React Native Developer

2024 - 2025

Sidhom IT Consulting Ltd

Developed and deployed a React Native-based event management app for over 10,000 users, overseeing end-to-end development, testing, and production launch.
Implemented a retrieval-augmented generation (RAG) service using OpenAI’s language model to process and clean user data, delivering enhanced, personalized assistance for task and event management through stored vector representations.
Improved payment flow by integrating RevenueCat and expanding payment options, increasing accessibility and revenue potential for the app.
Deployed the app on both Google Play and iOS App Stores, managing the approval process and ensuring compliance with platform standards.
Resolved complex UI bugs and optimized user experience, resulting in a smoother, more intuitive app interface that increased user engagement and satisfaction.
Designed and integrated a real-time data handling and API workflow to support seamless task and event management, providing users with reliable and immediate access to essential app functions.
Provided ongoing support and enhancements to ensure the app remains high-performing and up-to-date with the latest features and platform requirements.

Technologies: React Native, JavaScript, TypeScript, Firebase, OpenAI, OpenAI GPT-3 API, RevenueCat, Google Pay, App Store, UI Components, Atomic Design, Headless UI, Minimum Viable Product (MVP), Text-to-Speech (TTS), Prototyping, Retrieval-augmented Generation (RAG), Large Language Models (LLMs), React Components, React Redux, Chatbots, Firebase Cloud Messaging (FCM), AI Tools, Responsive Web Apps, JSON, Make (formerly Integromat), n8n, Figma to React, Team Leadership, AI Integration, Responsive UI, Performance Tuning, Mobile UX, Technical Leadership, Full-stack Development, Mobile Web, Software Design, Scalability, Cloud, General Data Protection Regulation (GDPR), Authentication, Auth, App Development, Database Normalization, Database Schema Design, AI Chatbots, Bug Fixes, Code Refactoring, Cloud Architecture, Enterprise Architecture, IT Security, AI Design, AI Programming, Agentic AI, Distributed Architecture, Event-driven Architecture, AI-generated Code, Claude Code

Senior Mobile Engineer

2022 - 2024

Reward Gateway, Limited

Led the development of a hybrid mobile application that increased user engagement by 20% through the implementation of redeemable vouchers, leveraging React Native and GraphQL for optimal performance.
Improved user retention by 15% by using Google Analytics to track and optimize user journeys, identifying key areas for enhancement to boost user loyalty and engagement.
Enhanced app performance by nearly 40% through the implementation of GraphQL for efficient data management and caching, significantly reducing load times and increasing responsiveness.
Increased successful transactions by 25% by developing and optimizing in-app checkout flows, resulting in a more reliable and satisfying user experience.
Integrated Apple Pay and Google Pay using Checkout.com, expanding secure and convenient payment options and significantly enhancing the user experience.
Implemented PCI DSS-compliant checkout flows with Checkout.com, ensuring full protection of sensitive cardholder data and maintaining rigorous security standards.
Attended yearly PCI compliance meetings to stay updated on industry standards and best practices, ensuring all systems and processes adhered to the latest regulations.
Assisted in publishing apps to Google Play and Apple App Stores, ensuring seamless deployment and compliance with platform-specific requirements.
Supported a user base of over 500,000 through continuous optimizations and new feature additions, contributing to sustained growth and high user satisfaction.

Technologies: React Native, Android, iOS, React, TypeScript, Swift, Java, DigitalOcean, HTTPS, MERN Stack, Firebase, API Integration, Data Visualization, Stripe, App Store, Google Play Store, React Query, Subscriptions, Apple Subscriptions, Communication, Testing, Design Systems, Styled-components, Mobile Apps, Architecture, Currency Exchange, DevOps, Storybook, Redux Toolkit, Front-end Architecture, Microfrontends, Full-stack, Google Cloud Functions, In-app Purchases, Mobile Architecture, Chrome Extensions, Git, Payment Gateways, NoSQL, Axios, JSON REST APIs, SOAP APIs, Wireframing, Mobile Applications, Jira, Material Design, CI/CD Pipelines, Deployment, SCSS, Version Control, Auth0, NPM, OAuth, Social Networks, Social Networks Development, App UI, Authorization, Payment Processing, Leadership, UI Animation, Databases, Apollo, React Native Reanimated, Mobile App Development, Swagger, Stripe Checkout, Stripe API, Checkout, Payment APIs, Caching, Lazy Loading, Social Media, Docker Compose, UI Components, Atomic Design, Headless UI, Minimum Viable Product (MVP), Prototyping, React Components, React Redux, Firebase Cloud Messaging (FCM), Responsive Web Apps, Financial APIs, JSON, Figma to React, Team Leadership, Responsive UI, Performance Tuning, Mobile UX, Technical Leadership, Mobile Web, Software Design, Scalability, Authentication, UI Testing, Auth, App Development, Database Schema Design, Bug Fixes, Code Refactoring, Cloud Architecture, Enterprise Architecture, Retool, Supabase Auth, IT Security, AI Design, AI Programming, Agentic AI, Distributed Architecture, Event-driven Architecture

Full-stack Web and Mobile Application Developer

2021 - 2022

An Online Freelance Agency

Developed custom solutions for Apple Pay and Google Pay integration using Node.js, tailoring the functionality to meet specific business needs.
Gained a deep understanding of PCI compliance requirements and seamlessly integrated Stripe into various platforms, ensuring secure and compliant payment processing.
Worked on a blockchain-backed mobile application. Handled transactions between fiat and cryptocurrency. Implemented Figma designs with great accuracy.
Implemented PayPal integration for a cutting-edge crypto finance application, enabling secure and efficient transactions for users.
Worked on mobile applications for the maintenance of a factory machine. Familiarized myself with the client's code quickly and provided efficient and fast output and results.
Managed and worked on three projects for the client simultaneously. Implemented feature updates and resolved bugs while understanding the immense code bases of multiple projects.

Technologies: JavaScript 6, React Native, React, Node.js, Localization, Mobile, Next.js, Tailwind CSS, Figma, Jest, Webpack, PostgreSQL, Android, iOS, REST APIs, Agile, HTML, CSS, UI Design, UX Design, Design, GraphQL, Firebase Cloud Functions, Full-stack, Front-end Development, Shopify, Shopify API, User Experience (UX), Software Architecture, User Interface (UI), Google Maps, Google Places SDK, Expo, Push Notifications, Location Tracking, SQL, ChatGPT, Generative Pre-trained Transformers (GPT), Twilio, Heroku, Mobile Development, Amazon Web Services (AWS), MySQL, GitHub, DigitalOcean, HTTPS, MERN Stack, Firebase, API Integration, Data Visualization, Stripe, App Store, Google Play Store, Subscriptions, Apple Subscriptions, RevenueCat, Stripe Subscriptions, OpenAI, Communication, Testing, Design Systems, Express.js, Google Cloud, Google Cloud Platform (GCP), Sequelize, Styled-components, Mobile Apps, Architecture, Currency Exchange, OpenAI GPT-3 API, OpenAI GPT-4 API, eCommerce, Stripe API, Back-end, Cloud Infrastructure, DevOps, Startups, D3.js, Material UI, Redux Toolkit, Front-end Architecture, Microfrontends, Svelte, SvelteKit, Firebase Authentication, Cloud Firestore, Expo.io, Google Cloud Functions, In-app Purchases, Mobile Architecture, Tailwind UI, Git, Payment Gateways, NoSQL, Axios, Artificial Intelligence (AI), Image Processing, Machine Learning, AWS Lambda, JSON REST APIs, SOAP APIs, Wireframing, FastAPI, Mobile Applications, Amazon Cognito, Jira, Material Design, Animation, Mobile First, Amazon S3 (AWS S3), CI/CD Pipelines, Deployment, SCSS, Vercel, Version Control, Database Management, PayPal, Auth0, ChatGPT API, Cross-browser Compatibility, NPM, Responsive Web Design (RWD), Web3, OAuth, Social Networks, Social Networks Development, App UI, Authorization, API Development, Webhooks, Payment Processing, Cryptocurrency, Back-end Development, MongoDB Atlas, Leadership, Blockchain, Crypto, UI Animation, Microsoft SQL Server, Databases, Apollo, Prisma, React Native Reanimated, Mobile App Development, Supabase, Amazon DynamoDB, Swagger, Bootstrap, Stripe Checkout, Checkout, Payment APIs, Caching, Lazy Loading, Social Media, SQLAlchemy, Redis, Docker Compose, OpenAI API, UI Components, Atomic Design, Headless UI, Web Components, SendGrid, Minimum Viable Product (MVP), Broadcasting, Streaming, Text-to-Speech (TTS), Prototyping, SDKs, Data Scraping, Retrieval-augmented Generation (RAG), Large Language Models (LLMs), React Components, Django, React Redux, Chatbots, Web Development, Agora, Firebase Cloud Messaging (FCM), AI Tools, Responsive Web Apps, Financial APIs, JSON, Make (formerly Integromat), n8n, AI Agents, Figma to React, Vite, HIPAA Compliance, Team Leadership, HTML5, Healthcare, AI Integration, Responsive UI, Performance Tuning, Mobile UX, Technical Leadership, Full-stack Development, Mobile Web, Software Design, HIPAA Electronic Data Interchange (EDI), General Data Protection Regulation (GDPR), Authentication, UI Testing, Auth, NestJS, Chart.js, Dashboards, App Development, Database Normalization, Database Schema Design, Terraform, NGINX, AI Chatbots, Bug Fixes, Code Refactoring, Cloud Architecture, Enterprise Architecture, SaaS, Retool, Supabase Auth, Audio Capture, Videos, Strapi, IT Security, AI Programming, Plaid API, Document Parsing, Agentic AI, Distributed Architecture, Event-driven Architecture, AI-generated Code, Claude Code, Cursor AI

Senior Software Engineer

2021 - 2022

Tkxel

Optimized existing React codebases to reduce load times and enhance user experience.
Handled the customization of clients' systems, including functional requirements documentation, use cases, actual coding, and unit testing.
Identified issues, analyzed information, and provided solutions to problems.
Supervised the work of contracted employees to stay on task for timely completion.

Technologies: JavaScript, React, Node.js, Web, Web UI, Tailwind CSS, Figma, AWS Amplify, Webpack, PostgreSQL, REST APIs, Agile, GraphQL, HTML, CSS, jQuery, Software Architecture, User Interface (UI), Push Notifications, Location Tracking, SQL, Heroku, Mobile Development, MySQL, GitHub, DigitalOcean, HTTPS, MERN Stack, Firebase, API Integration, Data Visualization, App Store, Google Play Store, React Query, Communication, Design Systems, Styled-components, Mobile Apps, Architecture, Cloud Infrastructure, DevOps, Material UI, Redux Toolkit, Front-end Architecture, Full-stack, Firebase Authentication, Cloud Firestore, Google Cloud Functions, Next.js, Mobile Architecture, Git, Payment Gateways, NoSQL, Axios, JSON REST APIs, SOAP APIs, Jira, Material Design, Mobile First, Amazon S3 (AWS S3), Deployment, SCSS, Version Control, Auth0, Cross-browser Compatibility, NPM, Responsive Web Design (RWD), OAuth, Social Networks Development, App UI, Authorization, Back-end Development, Leadership, UI Animation, Microsoft SQL Server, Databases, Mobile App Development, Swagger, Bootstrap, Checkout, Payment APIs, Caching, Lazy Loading, Social Media, SQLAlchemy, Docker Compose, Django, UI Components, Atomic Design, Headless UI, Web Components, SendGrid, Minimum Viable Product (MVP), Prototyping, React Components, React Redux, Web Development, Firebase Cloud Messaging (FCM), JSON, Figma to React, Vite, Team Leadership, HTML5, Responsive UI, Performance Tuning, Mobile UX, Technical Leadership, Full-stack Development, Mobile Web, Software Design, Authentication, Auth, Dashboards, App Development, Database Schema Design, NGINX, Bug Fixes, Code Refactoring, Cloud Architecture, SaaS, Videos, Strapi, IT Security, Document Parsing, Distributed Architecture

Senior Technical Content Engineer

2019 - 2021

Educative

Led multiple teams of engineers to attain the desired goal within the expected time frame.
Worked closely with the technical team, product managers, and CEO to strategize and plan new courses and their impact on the development of society.
Interviewed and mentored employees and new engineers on the team.

Technologies: JavaScript, Python 3, Docker, Web, React, jQuery, Search Engine Optimization (SEO), User Interface (UI), Push Notifications, Location Tracking, SQL, Heroku, Python, MySQL, GitHub, HTTPS, MERN Stack, Firebase, API Integration, Data Visualization, Communication, Design Systems, Architecture, Mobile Architecture, Git, NoSQL, JSON REST APIs, SOAP APIs, Jira, Deployment, Version Control, Leadership, UI Animation, Databases, Payment APIs, Caching, Lazy Loading, Social Media, Docker Compose, Minimum Viable Product (MVP), Prototyping, Web Development, JSON, Figma to React, Team Leadership, HTML5, Responsive UI, Performance Tuning, Mobile UX, Technical Leadership, Mobile Web, Software Design, Authentication, Auth, Database Schema Design, NGINX, Bug Fixes, Code Refactoring, Cloud Architecture, IT Security, Document Parsing, Distributed Architecture

Software Developer

2017 - 2019

An online freelance agency

Worked on three cross-platform mobile applications using React Native + Redux with Material UI.
Developed an app that utilizes an Uber-like functionality to connect to users with live tracking. This was achieved through the APIs provided by Google.
Worked on both WebRTC and Twilio to enable in-app audio/video calling for multiple applications.
Used Firebase functions to enable push notifications and automatic data updates.
Worked with Redux for global state management and Redux Thunk to handle asynchronous calls as middleware.
Gained a deep understanding and working experience in object-oriented JavaScript programming and the MVVM design pattern.

Technologies: Python 3, Selenium, Jupyter Notebook, Pandas, TensorFlow, React, JavaScript, TypeScript, C++, Java, Localization, Mobile, Figma, Webpack, PostgreSQL, REST APIs, Agile, HTML, CSS, UI Design, UX Design, Design, GraphQL, Firebase Cloud Functions, Full-stack, Front-end Development, User Experience (UX), Software Architecture, User Interface (UI), Google Maps, Google Places SDK, Expo, Push Notifications, Location Tracking, SQL, Twilio, Heroku, Python, Mobile Development, Amazon Web Services (AWS), MySQL, Maps, GitHub, HTTPS, MERN Stack, Firebase, API Integration, Data Visualization, Stripe, App Store, Google Play Store, React Query, Subscriptions, Apple Subscriptions, Stripe Subscriptions, Communication, Testing, Design Systems, Express.js, Google Cloud, Google Cloud Platform (GCP), Sequelize, Styled-components, Mobile Apps, Architecture, Currency Exchange, OpenAI GPT-3 API, OpenAI GPT-4 API, eCommerce, Stripe API, Back-end, Cloud Infrastructure, DevOps, Startups, Material UI, Redux Toolkit, Front-end Architecture, Microfrontends, Firebase Authentication, Cloud Firestore, Expo.io, Google Cloud Functions, In-app Purchases, Next.js, Mobile Architecture, Tailwind UI, Git, Payment Gateways, NoSQL, Axios, Artificial Intelligence (AI), Image Processing, Machine Learning, AWS Lambda, JSON REST APIs, SOAP APIs, Wireframing, FastAPI, Mobile Applications, Amazon Cognito, Jira, Material Design, Animation, Mobile First, Amazon S3 (AWS S3), CI/CD Pipelines, Deployment, SCSS, Vercel, Version Control, Database Management, PayPal, Auth0, Cross-browser Compatibility, NPM, Responsive Web Design (RWD), OAuth, App UI, Authorization, API Development, Webhooks, Payment Processing, Back-end Development, Microsoft SQL Server, Databases, Apollo, Prisma, React Native Reanimated, Mobile App Development, Supabase, Amazon DynamoDB, Swagger, Bootstrap, Stripe Checkout, Checkout, Payment APIs, Caching, Lazy Loading, Social Media, SQLAlchemy, Docker Compose, OpenAI API, UI Components, Atomic Design, Headless UI, Web Components, SendGrid, Minimum Viable Product (MVP), Broadcasting, Streaming, Text-to-Speech (TTS), Prototyping, SDKs, Data Scraping, Dating Apps, React Components, Django, React Redux, Web Development, Agora, Firebase Cloud Messaging (FCM), AI Tools, Responsive Web Apps, Financial APIs, JSON, Figma to React, Vite, Team Leadership, HTML5, Responsive UI, Performance Tuning, Full-stack Development, Mobile Web, Software Design, Authentication, Playwright, Auth, Chart.js, Dashboards, Database Schema Design, Terraform, AI Chatbots, Bug Fixes, Code Refactoring, Cloud Architecture, SaaS, Supabase Auth, Audio Capture, Strapi, Document Parsing, Distributed Architecture

Experience

Thrust.com

A cross-platform mobile application built using React Native and Expo, focused on delivering a polished, high-performance interface for a large non-Web3 system. I led end-to-end development across the full mobile lifecycle, implementing scalable architecture, responsive UI, and seamless API integrations. I collaborated closely with back-end and design teams to translate requirements into production-ready features, optimized app performance across iOS and Android, and contributed to CI/CD workflows for faster, reliable deployments. My responsibilities also included maintaining compatibility with new OS releases, writing clean and testable TypeScript code, conducting detailed code reviews, and ensuring best practices around performance, stability, and OTA delivery. The project benefited from my experience shipping multiple React Native apps and my expertise in Expo’s managed workflow.

Roomza

https://www.roomza.com/

Roomza is a Next.js app that finds hotels and shows credit card perks and loyalty benefits at each property, deployed on Vercel. The consumer app integrates the Amadeus API for real-time pricing and uses smart matching (hotel IDs and city-based searches). The admin dashboard supports full CRUD across programs, statuses, and benefits, implements auto-propagation so that new statuses are accepted at hotels that accept the parent program, and manages complex hotel-program links. MongoDB stores hotel and benefit data and handles relationships. Enables users to search with filters, view live prices, and compare perks; the dashboard ensures the data stays accurate and scalable.

Ezyorganizer

https://apps.apple.com/us/app/ezyorganizer-life-organizer/id1469144912?ls=1

As the full-stack and sole developer, I led the end-to-end development, testing, and deployment of a React Native-based event management app serving over 10,000 users. I also implemented a retrieval-augmented generation (RAG) service using OpenAI's language model. This service processes and cleans user data, runs it through an RAG pipeline, and stores vector representations in a database. These vectors enhance the model's ability to assist users effectively with task and event management, offering a more personalized and intelligent experience.

SmartSpending

https://play.google.com/store/apps/details?id=com.rewardgateway.mob_04&hl=en

A React Native-based online marketplace for e-vouchers from top global retailers, where I led the front-end development, testing, and deployment. I implemented smooth, PCI DSS-compliant checkout flows using Checkout.com, ensuring rigorous protection of sensitive cardholder data. Leveraging GraphQL, I optimized data management and caching, which enhanced app performance by nearly 40%, improving load times and responsiveness. By integrating Apple Pay and Google Pay through Checkout.com, I provided users with secure, convenient payment options, elevating the overall user experience. This application was successfully published on both Google and Apple App Stores, achieving high quality, security, and user engagement standards.

Edenred Discounts

https://play.google.com/store/apps/details?id=com.rewardgateway.mob_04_edenred&hl=en

GetBlossom

https://www.getblossom.ai/

I built a complete AI-driven matching portal for facial and dental surgeons using Next.js and deployed it on Vercel. Doctors had dedicated dashboards to manage their practice, upload verified before/after patient images, and provide voice-enabled descriptive tags. AI models analyzed facial and dental features, extracted embeddings, and generated similarity scores for each case. On the client side, users could upload their own photos, apply AI enhancement tools and a golden ratio filter to visualize potential improvements, and generate realistic before/after pairs. The system compared these user transformations with the doctors’ portfolios using OpenAI embeddings to calculate similarity, transformation, and procedure matching scores. The platform then recommended the most suitable surgeons for the desired results. This MVP was designed, developed, and deployed end-to-end within 30 days, showcasing an innovative and intelligent way to connect patients with the right aesthetic experts.

Preventa

I developed the MVP for Preventa, a React Native app, in one month, managing both the front end and back end. The app integrates with Apple HealthKit to fetch and store user health data on the server. It features an LLM-powered chatbot that provides personalized insights and allows users to interact with their data. I also implemented functionality to detect certain heart conditions, promoting early diagnosis and proactive management. This solution lets users use their health metrics in real time, improving health awareness and monitoring.

CoSafe

https://play.google.com/store/apps/details?id=com.cocrisis.live&hl=en&gl=US

CoSafe is a powerful and user-friendly critical communication platform for alerting, managing and preventing incidents.

Designed by crisis management experts and customized for building safe, resilient, and sustainable organizations. The platform helps organizations keep employees safe and informed by ensuring that the right information reaches the right person at the right time. I was the front-end developer in charge of designing interactive UI screens. I also managed the API integration to organize and display complex, real-time data to the users.

Third Tone

https://apps.apple.com/pk/app/third-tone-project/id6746461917

A React Native mobile audio streaming platform designed to deliver fast and reliable playback of large audio files (200MB+). I designed and implemented the full AWS-based streaming architecture, including secure audio storage, automated processing pipelines, and CDN-based delivery optimized for low-latency playback. I integrated react-native-track-player to support background playback, seeking, queue management, and smooth track switching.

The system used segmented audio streaming and edge delivery to minimize buffering and ensure fast startup times. I developed the APIs for track management, upload workflows, and secure playback access using signed URLs. This solution enabled the client to launch a scalable audio platform with a premium listening experience comparable to modern streaming apps.

Smart Factory

https://apps.apple.com/pk/app/smart-factory/id1510565698

Smart factory helps people see the productivity of machines and manage them accordingly. I was part of the front-end development team for the app. I built the user interface and integrated APIs to interact with the back end.

Finay

Finay is the virtual home the music community deserves, supporting artists and directly connecting them with their fans.

As the full-stack developer, I led the development, testing, and deployment of this application. Also, I successfully implemented PayPal integration, enabling users to make secure and efficient transactions. This mobile app was published on the App Store. Additionally, I managed and oversaw the tasks of the blockchain developer and ensured timely delivery to the client.

Education

2015 - 2019

Bachelor's Degree in Computer Science

National University of Computer and Emerging Sciences - Lahore, Pakistan

Certifications

MARCH 2024 - PRESENT

Application Security – The Complete Guide

Udemy

DECEMBER 2020 - PRESENT

Learn HTML, CSS, and JavaScript from Scratch

Educative

Skills

Libraries/APIs

React, Node.js, React Navigation, REST APIs, Google Maps, Stripe, React Query, Apple Subscriptions, Stripe API, SOAP APIs, API Development, SQLAlchemy, OpenAI API, React Redux, Auth, Chart.js, WebRTC, jQuery, Playwright, Plaid API, Pandas, TensorFlow, AWS Amplify, MobX, Shopify API, D3.js, HealthKit, Firebase Web SDK, Claude API

Tools

Slack, Skype, Figma, Xcode, Android Studio, Google Places SDK, Expo, ChatGPT, GitHub, Redux Toolkit, Firebase Authentication, Expo.io, Git, Amazon Cognito, Jira, Auth0, NPM, MongoDB Atlas, Stripe Checkout, SendGrid, Agora, Firebase Cloud Messaging (FCM), Make (formerly Integromat), n8n, Claude Code, Webpack, Sequelize, Prisma, Docker Compose, NGINX, Retool, Mongoose, Terraform

Languages

JavaScript, TypeScript, HTML, CSS, GraphQL, SQL, Python, SCSS, HTML5, Swift, Python 3, JavaScript 6, C++, Java

Frameworks

React Native, Redux, Next.js, Tailwind CSS, Material UI, Swagger, Django, NestJS, Selenium, Express.js, Bootstrap, Jest, Svelte, LangGraph

Paradigms

Agile, UI Design, UX Design, Mobile Development, Microfrontends, Responsive Web Design (RWD), App Development, Code Refactoring, Event-driven Architecture, Testing, DevOps, HIPAA Compliance, Search Engine Optimization (SEO)

Platforms

Windows, MacOS, Web, Amazon Web Services (AWS), Firebase, Mobile, Android, iOS, AWS Lambda, Vercel, Twilio, Heroku, DigitalOcean, Google Cloud Platform (GCP), Docker, Jupyter Notebook, Shopify, RevenueCat, Blockchain

Storage

PostgreSQL, MySQL, Cloud Firestore, NoSQL, Database Management, Microsoft SQL Server, Databases, Amazon DynamoDB, JSON, MongoDB, Google Cloud, Amazon S3 (AWS S3), Redis

Industry Expertise

Social Media, Healthcare

Other

Full-stack Development, Mobile Web, Front-end, Back-end, APIs, Design, Firebase Cloud Functions, Full-stack, Front-end Development, Software Architecture, User Interface (UI), Push Notifications, Generative Pre-trained Transformers (GPT), Maps, HTTPS, MERN Stack, API Integration, App Store, Google Play Store, Subscriptions, Stripe Subscriptions, Communication, Design Systems, Styled-components, Mobile Apps, Architecture, Currency Exchange, Startups, Front-end Architecture, Google Cloud Functions, In-app Purchases, Mobile Architecture, Payment Gateways, Axios, Artificial Intelligence (AI), JSON REST APIs, Wireframing, Mobile Applications, Material Design, Mobile First, Deployment, Version Control, Cross-browser Compatibility, OAuth, Social Networks, Social Networks Development, App UI, Authorization, Payment Processing, Apple Pay, Google Pay, Back-end Development, Leadership, UI Animation, Apollo, React Native Reanimated, Mobile App Development, Supabase, Checkout, Payment APIs, Caching, Lazy Loading, UI Components, Atomic Design, Headless UI, Web Components, Minimum Viable Product (MVP), Broadcasting, Streaming, Text-to-Speech (TTS), Prototyping, SDKs, Data Scraping, Retrieval-augmented Generation (RAG), Dating Apps, Large Language Models (LLMs), React Components, Chatbots, Web Development, AI Tools, Responsive Web Apps, Financial APIs, AI Agents, Figma to React, Vite, Team Leadership, AI Integration, Responsive UI, Performance Tuning, Mobile UX, Technical Leadership, Software Design, Scalability, General Data Protection Regulation (GDPR), Authentication, Dashboards, Database Normalization, Database Schema Design, AI Chatbots, Bug Fixes, Cloud Architecture, Enterprise Architecture, SaaS, Supabase Auth, Audio Capture, IT Security, AI Design, AI Programming, Document Parsing, Agentic AI, Distributed Architecture, AI-generated Code, Cursor AI, Localization, User Experience (UX), Location Tracking, Data Visualization, OpenAI, OpenAI GPT-3 API, OpenAI GPT-4 API, eCommerce, Cloud Infrastructure, Tailwind UI, Chrome Extensions, Image Processing, Machine Learning, FastAPI, Animation, CI/CD Pipelines, PayPal, ChatGPT API, Web3, Webhooks, HIPAA Electronic Data Interchange (EDI), UI Testing, Videos, Strapi, UI Development, Web UI, Security, PCI DSS, Storybook, SvelteKit, Cryptocurrency, Crypto, Open-source LLMs, Templates, Drag & Drop, Firebase Hosting, Big Data, Vercel Analytics, Mobile Ready, Cloud, Deep Linking, Web Push Notifications, Local Notifications, Mobile Navigation, AI Model Training, Pinecone, Recommendation Systems, Multi-agent Systems, Prompt Engineering

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