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Muhammad Mahdi
Open to opportunitiesSenior React Developer
Senior React & React Native Developer | Fintech, SaaS & Enterprise | 6+ Years Remote
PakistanSenior React Developer at Tenen Payments Ltd.
About
I’m a Senior React Developer with 6+ years building high-performance web and cross-platform mobile apps for clients across the US, EU, and Pakistan. I’m known for owning a codebase end-to-end—from architecture decisions to App Store / Play Store submissions—while shipping products that move business metrics.
Recently at Tenen Payments Ltd., I architected an Expo cross-platform app from a single TypeScript codebase, built a shared Storybook component library with design tokens, and integrated payment APIs with real-time WebSocket pipelines under PCI-DSS constraints using strict mode and feature flags. Previously, I cut page load times and improved Core Web Vitals at Wavenest, led an enterprise Next.js UI/UX overhaul with WCAG 2.1 AA compliance at Empower Associates, and migrated legacy sites to React/Next.js while delivering accessible, mobile-first UI. I bring a mentoring mindset, micro-frontend/feature-flag practices, and strong testing and code review habits to help teams deliver reliably and fast.
Experience
Senior React Developer
Architected a cross-platform Expo app (Android/iOS/Web) from a single TypeScript codebase, replacing multiple native builds and significantly reducing maintenance overhead. Built a shared Storybook component library with design tokens across React Native and Next.js, integrated payment APIs and real-time WebSockets under PCI-DSS constraints, and set up EAS Build pipelines to automate OTA updates a
React NativeExpoTypeScriptStorybookWebSocketsPCI DSSCI CDEAS Builds
Senior React Developer
Improved page load times by 40% and achieved passing Core Web Vitals (LCP, CLS, FID) through Vite code-splitting and lazy loading. Built and maintained a 30+ component Storybook design system with full TypeScript typings, cutting feature delivery time by 60% and reducing developer ramp-up from days to hours.
ReactTypeScriptViteLazy Loading
Education
University of Management and Technology
Completed a Master of Computer Science (MCS) at the University of Management and Technology (UMT) in Lahore, Pakistan.