Hi, I’m Muhammad Shabbar, a software engineer specializing in full-stack architecture, cross-platform development, and scalable SaaS solutions. I enjoy turning complex problems into robust, maintainable systems and delivering measurable value for users and businesses.\n\nI thrive on rapid iteration across stacks, clean architecture, strong test coverage, and collaborative teamwork. My passion is building reliable products that empower teams and customers while continuously learning and improving.…

Muhammad Shabbar

Hi, I’m Muhammad Shabbar, a software engineer specializing in full-stack architecture, cross-platform development, and scalable SaaS solutions. I enjoy turning complex problems into robust, maintainable systems and delivering measurable value for users and businesses.\n\nI thrive on rapid iteration across stacks, clean architecture, strong test coverage, and collaborative teamwork. My passion is building reliable products that empower teams and customers while continuously learning and improving.…

Available to hire
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Skills

Experience Level

JavaScript
Expert
Node.js
Expert
SQL
Expert
TypeScript
Expert
C#
Expert
Docker
Expert
Express
Expert
PostgreSQL
Expert
React Native
Expert
Python
Expert
Azure
Expert
GraphQL
Expert
Redis
Expert
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Work Experience

Lead Mobile Engineer at RetailFixIt
February 1, 2026 - Present
Architected and shipped a greenfield Expo and React Native vendor operations app across two production releases (V1 and V2) using expo-router, TanStack Query, and Zustand, writing 20,000+ lines of TypeScript powering check-in, check-out, estimates, invoices, signature capture, and media workflows for field vendors. Engineered and modernized backend services in C# across a .NET 8 API and a legacy ASP.NET codebase, building and refactoring endpoints over 250+ EF Core entities to deliver features end-to-end from mobile UI to database without separate backend handoffs. Built a resilient data-fetching layer with endpoint-specific timeouts (90s for heavy job-list endpoints vs. 30s default) and 5-minute stale-time caching, improving perceived load times by 40%. Designed a proactive JWT refresh system with a single-flight mutex in Axios interceptors, eliminating token-refresh collisions across 151+ concurrent endpoint calls and cutting auth-related request failures. Integrated OneSignal push n
Software Engineer (Mobile and Full Stack) at Yarkib - Early-Stage US AI Startup (Adventure Biking)
July 1, 2025 - January 31, 2026
Architected a turn-by-turn navigation system using Mapbox GL and the Directions API, writing custom GPX-parsing algorithms to render 500+ waypoint terrain routes with full offline support. Constructed a live tracking backend with Supabase and PostgreSQL, using WebSockets to synchronize location data for 50+ concurrent group ride sessions with sub-second update latency. Delivered a high-performance, type-safe frontend with end-to-end schema validation using Zod, achieving 60 frames per second animations via React Native Reanimated and Gesture Handler across iOS and Android. Streamlined the deployment pipeline using EAS Cloud Builds for CI/CD, reducing release cycle time by 60% compared to previous manual build processes.

Education

Bachelor of Science in Computer Science at FAST University
January 11, 2030 - June 1, 2025

Qualifications

Add your qualifications or awards here.

Industry Experience

Software & Internet, Professional Services, Media & Entertainment

Skills

Experience Level

JavaScript
Expert
Node.js
Expert
SQL
Expert
TypeScript
Expert
C#
Expert
Docker
Expert
Express
Expert
PostgreSQL
Expert
React Native
Expert
Python
Expert
Azure
Expert
GraphQL
Expert
Redis
Expert
See more