Portfolio
Rajab Alnabih
Senior Full-Stack & Mobile Developer
Android • Flutter • Web • AI-Powered Development
Remote · Open to Intl. Teams
- 10+ years building production software
- 20+ apps shipped to Google Play
- Lead AI Developer at Halas LLC
- Senior roles across multiple teams
- AI-powered product development
- Fullstack: Mobile · Web · Backend
Mobile, web, and AI: one fullstack toolkit.
Professional summary
Senior Full-Stack & Mobile Developer with 10+ years of experience building production-grade Android apps (Kotlin, Java), cross-platform apps with Flutter, and modern web applications using React, Next.js, and Node.js. I integrate AI capabilities into products — chatbots, smart recommendations, NLP features — and use AI coding assistants (Claude, ChatGPT, GitHub Copilot) daily to accelerate delivery and raise code quality. Strong background in clean architecture (MVVM/MVP), Firebase, RESTful APIs, cloud services, and CI/CD. Open to remote opportunities with international teams.
Quick facts
- Location
- Remote · Open to Intl. Teams
- Languages
- Arabic · Native · English · Professional
- Availability
- Full-time remote roles · Contract & freelance projects · International teams welcome · MENA / EU friendly timezones
Technical skills
Mobile
- Android (Kotlin, Java)
- Flutter
- Jetpack (Room, Navigation, WorkManager, Lifecycle)
- Material Design
- MVVM
- MVP
Web & Frontend
- React
- Next.js
- TypeScript
- JavaScript
- HTML
- CSS
- Tailwind CSS
- Responsive Design
Backend & APIs
- Node.js
- Express.js
- Laravel
- Spring Boot
- Core Java
- REST / JSON / XML
- Retrofit
- RxJava
- Firebase Cloud Functions
AI & LLMs
- Claude
- ChatGPT
- GitHub Copilot
- Prompt Engineering
- RAG
- AI Workflow Optimization
- OpenAI / Anthropic / Gemini APIs
- Chatbots
- NLP
Cloud & Firebase
- Firebase (Firestore, Realtime DB, FCM, Auth, App Check, Remote Config, AdMob, Analytics, Crashlytics)
- Google Cloud
- Google APIs (Maps, Places, Drive)
Databases
- MySQL
- MongoDB
- PostgreSQL
- AWS DynamoDB
- Amazon RDS
DevOps
- AWS (EC2, S3, RDS, DynamoDB)
- Docker
- CI/CD pipelines
Tools
- Git
- SVN
- Gradle
- Maven
- Android Studio
- IntelliJ IDEA
- VS Code
- Eclipse
- NetBeans
Architecture & Patterns
- MVVM · MVP · Clean Architecture
- Repository & Use-Case patterns
- Dependency Injection (Hilt, Dagger)
- Reactive (RxJava, Coroutines, Flow)
- Modular & multi-module apps
- SOLID & design patterns
Methodologies
- Agile / Scrum
- Code Review & Pair Programming
- Test-Driven Development
- CI/CD & Automated Deployment
- AI-Assisted Development Workflow
Industries
- Document Management & OCR
- E-Commerce & Retail
- Fitness & Health
- Auctions & Marketplaces
- Automotive Services
- Productivity & Enterprise Tools
- Employee Management
Open to remote opportunities with international teams.
Work experience
Lead AI Developer
Halas LLC
CurrentFebruary 2026 - Present- Lead AI development initiatives, designing and shipping AI-powered features and intelligent product workflows.
- Architect integrations with leading LLM providers (OpenAI, Anthropic, Gemini) and orchestrate prompt engineering, RAG, and AI workflow optimization for production use cases.
- Mentor engineers on AI-assisted development practices using Claude, ChatGPT, and GitHub Copilot to improve delivery speed and code quality.
- Collaborate with cross-functional stakeholders to translate business goals into reliable, scalable AI solutions across web and mobile platforms.
Freelance Full-Stack & Mobile Developer
Freelance
November 2023 - January 2026- Delivered end-to-end mobile and web applications for international clients using Android (Kotlin/Java), Flutter, React, Next.js, and Node.js.
- Integrated AI-powered features into client products — chatbots, smart recommendations, and NLP capabilities — using OpenAI, Anthropic, and Gemini APIs.
- Modernized legacy systems and migrated mobile backends to Firebase and Google Cloud, improving performance and reducing operational costs.
- Adopted AI coding assistants (Claude, ChatGPT, GitHub Copilot) in daily workflow to accelerate delivery and maintain high code quality.
Mobile Developer
Sprono LLC
September 2022 - October 2023- Led development of mobile applications using Kotlin and Java for Android, delivering scalable and efficient solutions.
- Migrated legacy mobile systems to modern cloud-based architectures on Google Cloud and Firebase, improving performance and reducing maintenance costs.
- Integrated AI-powered features and third-party AI APIs into mobile products to enhance user experience and automate workflows.
- Collaborated with product managers and stakeholders to define project scope, prioritize tasks, and ensure on-time delivery.
- Implemented CI/CD pipelines to automate mobile app deployment, increasing release frequency and reducing manual errors.
Freelance Java & Android Developer
Freelance
July 2018 - August 2022- Developed a wide range of Android applications using technologies such as OpenCV, integrated maps, real-time chat, and comprehensive backend services tailored to diverse user needs.
Android Developer
Inspire IT Solutions
June 2016 - October 2018- Developed advanced document scanner apps and web tools, improving user productivity and providing accurate financial analysis.
Fullstack Java Developer
Avviv LLC
June 2012 - October 2016- Managed the complete software development lifecycle for an E-Discovery System.
- Implemented RESTful web services using Spring Boot and utilized AWS services for efficient storage and server management.
Notable projects
Gymna
Fitness app offering expert-guided health plans, nutritional guidance, and exercise routines.
FreelanceSomtak
Electronic auction platform with multiple categories for bidding and selling goods.
FreelanceU.R.Here
Employee management app for automating check-in/out, tracking work hours, and detailed reporting.
FreelanceCarty
Car service app supporting buying, selling, renting, maintaining, and washing cars.
FreelanceCars Rental App
Car rental service with separate user and company interfaces, maps, and chat functionality.
FreelanceCamScanner App
Document scanner app with advanced features for scanning, storing, and managing documents.
Inspire IT SolutionsProfit Calculator
Web tool built with Angular 4 for calculating profit and revenue based on receipts and gross margins.
Inspire IT SolutionsBackground
Education
- Bachelor's Degree in Information Technology
University of Palestine · 2012
Languages
- Arabic · Native
- English · Professional
Soft skills
- Leadership & Mentoring
- Clear Communication
- Problem-Solving
- Cross-Functional Collaboration
- Adaptability & Fast Learning
- Ownership & Delivery Focus
Focus areas
- AI-Powered Product Development
- Fullstack Architecture
- Mobile-First Experiences
- Clean Code & Developer Experience
- Mentoring & Team Enablement
Availability
- Full-time remote roles
- Contract & freelance projects
- International teams welcome
- MENA / EU friendly timezones
Interests
- Emerging AI tooling & LLMs
- Open-source contribution
- Developer productivity
- Continuous learning
References: Available upon request.
Let's work together
Open to remote roles, contract work, and international teams.
Remote · Open to Intl. Teams
Rajab Alnabih · Senior Full-Stack & Mobile Developer
Email me