Usama Sadiq

React Native & Full Stack Developer | Expo · Supabase · Next.js · Node.js · RevenueCat · TypeScript | Mobile · Web · Automation | 4+ yrs | Open to freelance & work

Talent

KarachiMember since May 22, 2026

ExpoSupabaseNext.jsNode.jsRevenueCatTypeScriptMobileWebAutomationReact Native DeveloperJavascriptExpressMongodbPostgresqlFirebaseHtml5Css3React.jsDatabase ManagementSqlTest AutomationTailwind Css

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ExpoSupabaseNext.jsNode.jsRevenueCat

About

I'm a React Native & Full Stack Developer with 4+ years of professional experience building and shipping 15+ production-grade mobile and web applications.

I specialize in cross-platform mobile development using React Native and Expo — from initial architecture to App Store and Google Play Store deployment. My work involves deep integrations with Supabase (auth, real-time database, edge functions), RevenueCat (subscription flows, Apple & Google server-to-server notifications), and TypeScript-first development practices.

On the web side, I bring solid experience in Next.js, Node.js, Express.js, MongoDB, PostgreSQL, and REST API development — having delivered full-stack solutions across multiple client projects, including remote work for a US-based company.

I also build workflow automation solutions using n8n — including WhatsApp bots, AI integrations, and custom business automations that save teams hours every week.

If you're a startup or business struggling with a slow or outdated website, a missing or broken mobile app, or manual workflows eating up your team's time — I can help. Whether you need a web platform, a cross-platform iOS & Android app, or smart automations that run on their own — I build it the right way, on time, and without the back-and-forth.

What I bring to every project:

→ End-to-end ownership — from architecture decisions to store deployment

→ Production mindset — clean code, performance, and real-world reliability

→ Clear communication — I understand requirements quickly and deliver on time

→ 4+ years across 4 companies — stability, depth, and diverse exposure

Currently open to

✦ Freelance mobile, web & automation projects

✦ Remote clients worldwide

DM me with your project idea — I'll get back within 24 hours.

Experience

Experience:

React Native & Full Stack Developer | ConceptRecall — Dec 2023 to Present

Built and shipped multiple production mobile apps using React Native and Expo to App Store and Google Play Store. Integrated RevenueCat for subscription flows, paywalls, and Apple/Google server-to-server notifications. Implemented Supabase for authentication, real-time database, and edge functions. Connected Shopify APIs for premium content eligibility validation. Developed custom paywall UI and account flows using TypeScript and clean architecture patterns.

Frontend Developer (Remote) | Jobit Technologies — Feb 2023 to Dec 2023

Worked remotely with a US-based tech company delivering React Native and Next.js features. Gained experience in async international workflows and deadline-driven delivery.

Full Stack Developer | SoftAppsio — Jun 2022 to Dec 2022

Built marketplace and mobile app features using React Native, Next.js, Node.js, MongoDB, and Express.js. Worked on HLS/DRM video streaming with Socket.io.

Full Stack Developer | Panacloud Pvt Ltd — Jun 2021 to Jun 2022

Developed scalable web applications using JavaScript, React.js, Node.js, and Express.js. Built custom HTML email template systems for client communication workflows.

Frontend Developer Intern | Jawan Tech Pakistan — Feb 2021 to May 2021

Built React.js web apps including a quiz platform with Firebase backend. Established core skills in component-based architecture and modern JavaScript.