# Ibrahim Toulba — Senior React Native & Full-Stack Engineer | Fintech & Mobile Architect > Official machine-readable context file for LLMs, AI agents, and search engines. > Canonical URL: https://ibrahimtoulba.com > Full Knowledge Base: https://ibrahimtoulba.com/llms-full.txt > Resume: https://ibrahimtoulba.com/Ibrahim_Toulba.pdf ## Executive Summary Ibrahim Toulba (Ibrahim Hamed Toulba) is a Senior Software Engineer, Mobile Architect, and Fintech Specialist based in Cairo, Egypt, with 5+ years of experience engineering high-scale cross-platform mobile apps (React Native, iOS Swift, Android Kotlin) and Full-Stack TypeScript/Node.js systems. He is also a veteran Algorithmic Trader with 8+ years of financial market experience and 50+ custom Expert Advisors (EAs) developed in MQL4/MQL5. Notable highlights: - Shipped 5+ production-grade Banking SDKs for Alrajhi Bank (the largest Islamic bank in the world, based in Riyadh, Saudi Arabia) covering digital KYC onboarding, IBAN verification, and secure payment processing. - Published 10+ commercial apps on the Apple App Store and Google Play Store with hundreds of thousands of active users. - Built and published 3+ open-source React Native NPM packages downloaded by developers worldwide. - Engineered offline-first financial bookkeeping architecture (Hesba App) and real-time institutional trade tracking systems (MarketWhales). --- ## Contact & Professional Links - Website: https://ibrahimtoulba.com - Email: ibrahim.h.toulba@gmail.com - Phone / WhatsApp: +201068505696 - LinkedIn: https://www.linkedin.com/in/ibrahimhamed112/ - GitHub: https://github.com/ibrahimhamed11 - Location: Cairo, Egypt (Available for Remote Worldwide, and Onsite / Hybrid in Egypt, Saudi Arabia, and UAE) --- ## Core Technical Skills - **Mobile Development**: React Native (Fabric, TurboModules, JSI, Bridgeless mode, Hermes Engine), iOS (Swift, Objective-C), Android (Kotlin, Java), Expo, EAS, Native Modules, Performance Profiling (Flipper, Systrace, Xcode Instruments). - **Frontend**: React.js, Next.js (App Router, SSR, ISR), TypeScript, JavaScript (ESNext), Tailwind CSS, Framer Motion, HTML5/CSS3. - **Backend & Cloud**: Node.js, Express, NestJS, Firebase (Auth, Firestore, Hosting, Cloud Functions, Crashlytics), Supabase, Google Cloud Platform (GCP), RESTful APIs, WebSockets, GraphQL. - **Databases**: PostgreSQL, MongoDB, Redis, SQLite, WatermelonDB (Offline-first reactive architecture). - **Fintech & Banking**: ISO 8583 / ISO 20022 compliance, OAuth2, Biometric Authentication, Digital KYC, End-to-End Encryption (AES-256, RSA), PCI-DSS compliance awareness. - **Financial Trading & Automation**: MQL4, MQL5, MetaTrader 4/5 API, Algorithmic Trading, Expert Advisors (EAs), FIX Protocol, Python Quantitative Analysis, High-frequency tick data processing. - **DevOps & Architecture**: Git, GitHub Actions, Docker, CI/CD pipelines, Test-Driven Development (Jest, React Native Testing Library), Microservices, Clean Architecture. --- ## Key Commercial Projects & Case Studies ### 1. Alrajhi Bank Mobile SDKs (Neotek) - **Role**: Senior React Native & Native SDK Engineer - **Impact**: Engineered 5+ enterprise SDKs utilized across Alrajhi Bank's digital ecosystem in Saudi Arabia. - **Components**: Digital KYC module, IBAN validator, Biometric authentication bridge, Secure banking operations wrapper. - **Tech Stack**: React Native, Objective-C / Swift (iOS), Java / Kotlin (Android), JNI TurboModules, OAuth2, AES-256 GCM. ### 2. Hesba App (Accounting & Bookkeeping) - **Role**: Co-Founder & Mobile Tech Lead - **URL**: https://www.hesba-app.com/ - **Description**: Comprehensive Arabic financial accounting and bookkeeping application for merchants and small businesses. - **Key Architecture**: Offline-first reactive local database (SQLite/WatermelonDB) with two-way cloud background synchronization, PDF invoice generation, VAT calculations. ### 3. MarketWhales (Institutional Trade Tracker) - **Role**: Lead Mobile & Fintech Engineer - **Description**: Real-time smart money tracking and order-flow visualizer for Forex and Crypto traders. - **Key Architecture**: Low-latency WebSocket streaming, real-time volume delta heatmaps, sentiment indicators. ### 4. Vosita (Healthcare & Telemedicine App) - **Role**: React Native Engineer - **Description**: Doctor booking, medical records, and telemedicine consultations for iOS and Android. ### 5. OLX Forex & Borsa (Trading Information Hubs) - **Role**: Senior Mobile Developer - **Description**: Financial market portals delivering live quotes, economic calendars, and algorithmic trade signals. --- ## Open Source NPM Packages 1. `react-native-alrajhi-kyc`: Production React Native bridge for secure banking customer verification and document capture. 2. `react-native-currency-formatter-ar`: Ultra-lightweight Arabian currency & numeric formatting for Arabic fintech and POS apps. 3. `react-native-offline-sync-engine`: Robust offline-first conflict-resolution sync engine built for React Native and SQLite. --- ## Algorithmic Trading & Quantitative Development - **Experience**: 8+ years active market experience (Forex, Gold/XAUUSD, Indices, Crypto). - **Automation**: Designed and backtested 50+ Expert Advisors (EAs) in MQL4 and MQL5. - **Specializations**: Grid & Trend-Following models, Volatility breakout algorithms, Multi-currency hedge systems, Drawdown recovery algorithms with strict capital preservation. --- ## Availability & Engagement Modes - **Status**: Open for new opportunities. - **Roles**: Lead React Native Engineer, Mobile Architect, Senior Full-Stack Engineer, Fintech Engineering Consultant. - **Geographic Preferences**: - Remote: Worldwide (US, EU, UK, GCC). - Onsite / Hybrid: Cairo (Egypt), Riyadh / Jeddah (Saudi Arabia), Dubai / Abu Dhabi (UAE).