Software Engineer, Head of Mobile Development

Kareem Hazem Ahmed

I lead the mobile team at Core Tech in Dammam. We ship React Native apps in English and Arabic, from real-estate platforms to a marketplace checkout, and I build the release pipeline that gets them to users.

10+
production apps in the portfolio I lead
3
brands shipped from one codebase
2
languages, RTL included
Amer Customer app, Home screen in English

Work

Apps I built and shipped at Core Tech. Screens are from the live store listings.

Amer Customer

White-label customer app for property owners and tenants — units, financial reports, collections, requests, guest invitations. One codebase ships three live brands (Amer, Alnahdi, RREM), released through per-brand Expo EAS workflows with OTA updates. Bilingual English/Arabic with RTL.

React Native, Expo, TypeScript, White-label rebranding, EAS Workflows, OTA updates

  • Amer عامر مؤسسات
  • Alnahdi Remakers
  • RREM

Read the rebranding and release case study

Amer Tech

Technician app for maintenance work orders: claim and respond to tickets, live repair timer, spare-part requests, meter reads and photos. Arabic-first with full RTL; phone, tablet and foldable layouts.

React Native, Expo, TypeScript

More apps

  • Hero MartMobile, E-commerce

    E-commerce marketplace app in Saudi Arabia: catalog, cart, checkout and payment integration, with performance optimization. Live on both stores.iOS (opens in a new tab)Android (opens in a new tab)

    React Native, Expo, TypeScript, Redux Toolkit

  • Amer ManagerMobile, Real estate

    Manager-side mobile app in the Amer property-management ecosystem.

    React Native, Expo, TypeScript

  • Amer (تطبيق عامر)Mobile, Real estate

    Amer property app with maps-based unit discovery (two generations of the app).

    React Native, Expo, TypeScript

  • ErtiqaMobile + Web

    Member app with company profile, certificates, annual reports, check-in and device requests; paired with a Next.js web app.

    React Native, Expo, Next.js, TypeScript

  • MunzimMobile + Web, Events

    Events app: event listings, calendar, entrance codes and certificates, with a companion web app.

    React Native, Expo, React, Vite

  • Falco OSMMobile

    Mobile app upgraded from Expo 48 to Expo 57 / React Native 0.86.

    React Native, Expo

  • DFNPSMobile

    Expo 51 / React Native mobile app.

    React Native, Expo, TypeScript

  • Amer platform (web)Web, Admin & corporate

    Multi-tenant property-management admin panel (React, Ant Design, React Query, Arabic/RTL), a Laravel back-office system with CRM and finance modules, and a Next.js corporate site and landing pages.

    React, Ant Design, Laravel, Next.js, Vite

Projects

Products I designed and built end to end.

3Fit

3Fit, fitness and nutrition coaching

Personal diet plans, workout programs and live chat with a coach, in Arabic and English.

React Native, TypeScript, Redux Toolkit, React Navigation, i18next, Socket.IO, Node.js, Express, MongoDB

Read the write-up

tobher.com

Tobher — multi-tenant e-commerce platform

A “Shopify for Egypt”: Arabic-first, cash-on-delivery-native stores for small merchants.

TypeScript, Next.js 14, Express, MongoDB, Mongoose, Tailwind, pnpm + Turborepo, Playwright, Vitest

Read the write-upVisit tobher.com (opens in a new tab)

Earlier projects

  • Sadat City Jobs

    Job-finding website and mobile app for companies in Sadat City.Website (opens in a new tab)Google Play (opens in a new tab)

    React, React Native, Node.js, MongoDB, GCP

  • Darbi — Rider & Driver

    Two ride-hailing apps for Saudi Arabia, Uber-style, with payments and chat.

    React Native, Expo, TypeScript, Socket.IO, Redux Toolkit

Experience

  1. Oct 2024 – Present, Dammam, Saudi Arabia

    Head of Mobile Development, Core Tech

    Leading a team of developers across 10+ production mobile apps. Own implementation standards, code reviews, CI/CD pipelines and technical documentation; led e-commerce features including checkout, payments and catalog optimization. Rebranded and white-labelled the Amer Customer app into three shipped brands (Amer, Alnahdi, RREM), with per-brand Expo EAS release workflows and OTA updates.

  2. Jun 2024 – Oct 2024, Cairo, Egypt

    Senior React Native Consultant (Contract), NextGen Softwares

    Led a team delivering payments, chat and bug fixes for the Darbi Rider and Darbi Driver apps.

  3. Sep 2022 – Oct 2024, Sadat City, Egypt

    Software Engineer, Sharabati-Denim

    One of 8 developers responsible for internal software at a company of 5K+ employees.

  4. Sep 2022 – Jan 2023, Stockholm, Sweden

    React Native Developer (Contract), Swegit

    Built the Payl mobile app.

Skills

Mobile
React Native, Expo, Expo EAS (Build, Workflows, Update/OTA), White-label multi-brand apps, React Navigation, Native iOS/Android integration, App Store & Google Play releases
Frontend
TypeScript, React, Next.js, Redux Toolkit, React Query, Tailwind CSS
Backend & data
Node.js, Express, Firebase, AWS, GCP, MongoDB, PostgreSQL, MySQL, Redis, Socket.IO
Practices
CI/CD (GitHub Actions), Jest, Detox, RN Testing Library, Code review, Agile/Scrum

Have a mobile product to ship?

I’m open to leading mobile teams and to consulting on React Native, Expo release pipelines and white-label apps.

karemhz@protonmail.com

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