Available to hire
I am Ammar Tariq, a Senior Mobile Architect with 8+ years of experience building scalable cross‑platform applications across health tech, fintech, e-commerce, and IoT. Based in Karachi, Pakistan, I enjoy turning complex problems into robust products and collaborating with cross-functional teams.
My strengths include React Native architecture, native mobile integrations in Java/Kotlin and Swift, AI-powered applications, and performance optimization. I thrive on modernizing legacy systems, engineering scalable backend integrations, and delivering production apps with React Native, TypeScript, Node.js, GraphQL, and native Android/iOS tech. I also prototype AI workflows and apply ML-powered features to real-world domains.
Skills
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Intermediate
Intermediate
Intermediate
Language
English
Fluent
Urdu
Fluent
Work Experience
Fullstack Mobile Engineer (Part Time Contract) at TM Tech
January 1, 2026 - PresentPart‑time contract role focusing on mobile architecture, native integrations, and scalable backend communications.
Senior Software Engineer - Technical Lead at Pixel Genesys
January 1, 2025 - January 1, 2026Designed scalable React Native architectures, implemented AI‑powered features, built microservices, and led technical reviews.
Senior Full-Stack Engineer at Pixel Genesis
March 1, 2023 - PresentArchitected and delivered scalable SaaS fintech-like features using React, TypeScript, Node.js (NestJS) and NoSQL/SQL backends (MongoDB, PostgreSQL, Firebase). Built high-performance, real-time UI components and dashboards using WebSockets for live market and trade updates; implemented optimized rendering for large streaming datasets. Implemented LLM integrations (OpenAI GPT API) for chat assistants and automation to enhance workflows. Collaborated with backend teams to design robust API contracts and reduce end-to-end latency; improved API response times and frontend perceived performance via caching and memoization. Implemented CI/CD pipelines and cloud deployments on AWS/GCP, improving release reliability and rollback procedures.
Senior Full-Stack Engineer at Pixel Genesis
March 1, 2023 - PresentArchitected and delivered scalable SaaS fintech-like features using React, TypeScript, Node.js (NestJS) and NoSQL/SQL backends (MongoDB, PostgreSQL, Firestore). Built high-performance, real-time UI components and dashboards for live market updates; implemented optimized rendering for large streaming data sets. Implemented LLM integrations (OpenAI GPT API) for chat assistants and automation to streamline workflows and reduce manual support requests. Collaborated with backend teams to design robust API contracts and improved end-to-end latency via caching and memoization strategies. Implemented CI/CD pipelines and cloud deployments on AWS/GCP, enhancing release reliability and rollback procedures.
Senior Full-Stack Engineer at Pixel Genesis
March 1, 2023 - PresentArchitected and delivered scalable SaaS and fintech-like features using React, TypeScript, Node.js (NestJS) and NoSQL/SQL backends (MongoDB, PostgreSQL, Firebase). Built real-time UI components and dashboards with WebSockets and WebRTC; optimized rendering for large streaming data sets and improved frontend data fetch performance. Collaborated with backend teams to design robust API contracts and reduce latency; implemented CI/CD and cloud deployment on AWS/GCP to improve reliability and scalability.
Head of Department at Meta Frolic Labs (Pvt.) Ltd
February 28, 2023 - September 22, 2025Led a cross-functional engineering organization (10+ engineers) to design cloud-native architectures and implement AI/ML features across products. Standardized frontend architecture and TypeScript patterns; introduced CI/CD and automated testing frameworks, reducing release cycle time by ~40%. Drove adoption of LLMs and data-driven features, launching conversational assistants and recommendation systems that increased user engagement. Mentored engineers on frontend performance, WebRTC integration, and observability best practices.
Head of Department at Meta Frolic Labs (Pvt.) Ltd.
February 28, 2023 - September 22, 2025Led a cross-functional engineering organization (10+ engineers) to design cloud-native architectures and implement AI/ML features across products. Standardized frontend architecture and TypeScript patterns; introduced CI/CD and automated testing frameworks, reducing release cycle time by ~40%. Drove adoption of LLMs and data-driven features, launching conversational assistants and recommendation systems that increased user engagement. Mentored frontend/ performance/ observability best practices.
Head of Department at Meta Fol ic Labs (Pvt) Ltd
February 28, 2023 - September 11, 2025Led cross-functional engineering org (10+ engineers) to design cloud-native architectures and implement AI/ML features across products. Standardized frontend architecture and TypeScript patterns; introduced CI/CD and automated testing frameworks, reducing release cycle time by ~40%. Drove adoption of LLMs and data-driven features, launching conversational assistants and recommendation systems that increased user engagement. Mentored engineers on frontend performance, WebRTC integration, and observability best practices.
Senior Software Engineer - Technical Lead at Meta Frolik Labs (Pvt.) Ltd.
January 1, 2023 - January 1, 2026Designed scalable React Native architectures by separating business logic from UI layers using TypeScript patterns and reusable components; built NestJS microservices with PostgreSQL supporting high-volume fintech workflows and reliable transaction processing; developed AI-driven recommendation features and improved user engagement through personalized experiences; led technical reviews and mentored a 10-person engineering team on mobile architecture and development practices.
Senior Software Engineer - Technical Lead at Salssoft Technologies (Pvt.) Ltd.
January 1, 2023 - January 1, 2026Designed scalable React Native architectures, led AI‑driven recommendations, and mentored a 10‑person mobile engineering team.
Senior Mobile Application Developer (React Native) at Sals Soft Technologies (Pvt) Ltd
April 30, 2022 - September 22, 2025Delivered 10+ high-performance mobile applications across health tech, e-commerce, social networking and internal SaaS products using React Native, TypeScript, and Redux. Architected Android posture-correction app leveraging accelerometer data with lightweight ML inference; implemented persistent background services to monitor and notify users while minimizing battery impact. Implemented scalable WebRTC-based real-time video & voice calling using Janus Gateway; created multi-party sessions and NAT traversal logic. Built a reusable cross-project UI & module library and integrated WooCommerce APIs for rapid feature rollouts (≈80% faster delivery). Led migration from Ionic to React Native; improved startup time and maintainability. Optimized rendering and memory usage to boost perceived performance by ~25% across flagship apps. Collaborated with QA and backend teams to implement telemetry and crash reporting, reducing crashes and increasing stability.
Senior Mobile Application Developer (React Native) at Soft Technologies (Pvt) Ltd
April 30, 2022 - September 22, 2025Delivered 10+ high-performance mobile applications across health tech, e-commerce, social networking and internal SaaS products using React Native, TypeScript, and Redux. Built Posture Correction App (Android) with native module integration capturing accelerometer data and applying lightweight ML for posture detection; implemented persistent background services to monitor and notify users while minimizing battery impact. Real-time video & voice calling: designed and implemented scalable WebRTC solution using Janus Gateway; handled signaling, media routing, multi-party sessions, reconnection, and NAT traversal for robust in-app calls. Created a reusable component library and integrated WooCommerce APIs for rapid feature rollouts, reducing delivery time by ~80%. Migrated from Ionic to React Native, defining migration plans and coding standards to improve performance, startup time, and maintainability. Optimized rendering and memory usage to boost UI responsiveness by ~25% across flagship
Senior Mobile Application Developer (React Native) at Soft Technologies (Pvt) Ltd
April 1, 2022 - September 11, 2025Delivered 10+ high-performance mobile applications across health tech, e-commerce, social networking, and internal SaaS products using React Native. Implemented native-integrated solutions capturing accelerometer sensor data and applying lightweight ML inference for posture detection; implemented persistent Android background services to continuously monitor and notify users while minimizing battery impact.
Senior Mobile Application Developer (React Native) at Technologies (Pvt) Ltd
May 31, 2019 - September 22, 2025Developed and maintained cross-platform React Native apps; contributed to multiple product launches. Implemented real-time data sync via Firebase and REST APIs; added push notifications and offline-first patterns. Improved component lifecycle and state management (Redux) to reduce redraws and optimize UX on low-end devices.
Mobile Application Developer (React Native) at Soft Technologies (Pvt) Ltd
May 31, 2019 - September 22, 2025Developed and maintained cross-platform React Native apps using ES6+ and TypeScript; contributed to 4 major product launches. Integrated real-time data sync via Firestore and REST APIs and implemented push notifications and offline-first patterns. Improved component lifecycle and state management strategies (Redux) to reduce redraws and improve UX on low-end devices.
Mobile Application Developer (React Native) at Soft Technologies (Pvt) Ltd
May 1, 2019 - September 11, 2025Delivered and maintained cross-platform React Native apps using ES6+ and TypeScript; contributed to 4 major product launches. Integrated real-time data sync via Firebase REST APIs and implemented push notifications and offline-first patterns. Improved component lifecycle and state management (Redux) to reduce redraws and enhance UX on lower-end devices.
Senior Mobile Application Developer at Salsoft Technologies (Pvt.) Ltd.
January 1, 2019 - January 1, 2023Delivered 10+ production mobile applications across health tech, e-commerce, and social platforms using React Native and TypeScript; built native Android integrations with Java/Kotlin including sensor-based apps, background services, and custom device functionality; integrated Janus WebRTC solutions for real-time communication and developed reusable component libraries for faster product development; migrated legacy Ionic applications to React Native, improving maintainability and performance.
Senior Mobile Application Developer at Salssoft Technologies (Pvt.) Ltd.
January 1, 2019 - January 1, 2023Delivered 10+ production mobile apps across health tech, e‑commerce, and social platforms using React Native and TypeScript.
Junior Software Engineer at S / Anonymous
January 1, 2018 - January 1, 2018Supported React Native and Ionic applications through feature development, debugging, testing, and production maintenance.
Senior Mobile Application Developer at Soft Technologies (Pvt.) Ltd.
January 1, 2018 - January 1, 2019Developed React Native applications with API integrations, Firebase services, offline workflows, and performance optimizations; contributed to Unblock Keyboard, a custom keyboard platform focused on consent-based data monetization and reward-based participation.
Junior Software Engineer at Soft Technologies (Pvt.) Ltd.
January 1, 2018 - January 1, 2018Supported React Native and Ionic applications through feature development, debugging, testing, and production maintenance.
Mobile Application Developer at Soft Technologies (Pvt.) Ltd.
January 1, 2018 - January 1, 2019Developed React Native apps with API integrations, native module support, offline workflows, and performance optimizations.
Education
Bachelor of Science in Software Engineering at University of Karachi
January 11, 2030 - September 22, 2025Bachelor of Science in Software Engineering at University of Karachi
January 11, 2030 - September 22, 2025Bachelor of Science in Software Engineering at University of Karachi
January 1, 2015 - January 1, 2019Bachelor of Science in Software Engineering at University of Karachi
January 1, 2015 - January 1, 2019Qualifications
Bachelor of Science (Computer Science)
January 11, 2030 - September 11, 2025Building Systems with ChatGPT — deep learning AI (Completed)
January 11, 2030 - September 11, 2025Machine Learning in Python — Coursera (2 modules completed)
January 11, 2030 - September 11, 2025Building Systems with ChatGPT
January 11, 2030 - September 22, 2025Machine Learning in Python
January 11, 2030 - September 22, 2025Building Systems with ChatGPT — AI/Deep Learning
January 11, 2030 - September 22, 2025Machine Learning in Python — Course
January 11, 2030 - September 22, 2025Building Systems with ChatGPT — DeepLearning.AI
January 11, 2030 - June 22, 2026Full-Stack Engineering — Meta
January 11, 2030 - June 22, 2026AI & Machine Learning in Python — IBM (Coursera)
January 11, 2030 - June 22, 2026Building Systems with ChatGPT — DeepLearning AI
January 11, 2030 - June 26, 2026Full-Stack Engineering — Meta
January 11, 2030 - June 26, 2026AI & Machine Learning with Python — IBM (Coursera, In Progress)
January 11, 2030 - June 26, 2026Industry Experience
Software & Internet, Financial Services, Professional Services, Media & Entertainment, Education, Healthcare
Hire a App Developer
We have the best app developer experts on Twine. Hire a app developer in Karachi today.