Skills & Expertise

Augmented reality application development using ARKit and related technologies. This skill involves creating applications that overlay digital content onto the real world through device cameras, including facial recognition, 3D object placement, and interactive AR experiences.

Development of software for embedded systems and microcontrollers. This skill involves programming hardware with limited resources, integrating sensors, and building real-time control systems that operate reliably in constrained environments.

The discipline of efficiently allocating, using, and releasing computer memory in software applications. Proper memory management prevents leaks, reduces memory footprint, and ensures application stability especially when handling large data sets.

The practice of analyzing, measuring, and improving software performance across multiple dimensions including response time, throughput, memory usage, and resource efficiency. Performance optimization involves profiling, benchmarking, and systematic improvement of both code and architecture.

Advanced robotics expertise spanning competition robotics to industrial automation. This skill encompasses inverse kinematics, humanoid robot movement, sensor integration, and real-time control systems for both competition and commercial applications.

Creating visual representations of data for analysis and communication

The practice of designing and building Software Development Kits that enable other developers to integrate with a product or service. SDK development requires creating clean APIs, comprehensive documentation, and easy-to-use interfaces.

Apple's foundational framework for building user interfaces on iOS. UIKit provides the window and view architecture, event handling, drawing model, and app infrastructure required for iOS applications. It includes components like UIViewController, UITableView, and UICollectionView that form the backbone of most iOS apps.

AppKit is Apple's framework for building macOS desktop applications. It provides the user interface elements, event handling, and application infrastructure needed for native Mac applications.

Constraint-based layout system for iOS and macOS interfaces

Apple's framework for communicating with Bluetooth Low Energy (BLE) devices. Core Bluetooth enables iOS applications to discover, connect to, and exchange data with BLE peripherals such as beacons, sensors, and IoT devices. Essential for IoT integration and indoor positioning systems.

Apple's object graph and persistence framework for iOS and macOS. Core Data provides data modeling, persistence, caching, and undo functionality. It enables offline-first architectures where applications can function without network connectivity and synchronize data when available.

Apple's framework for determining device location and heading. Core Location provides GPS, Wi-Fi, and cellular-based positioning, as well as iBeacon region monitoring and ranging. Essential for location-aware applications, mapping features, and indoor positioning systems.

Apple's framework for managing object graphs and data persistence in iOS and macOS applications. CoreData provides an abstraction layer over SQLite, offering features like object-relational mapping, change tracking, undo/redo support, and memory-efficient data handling. It is essential for iOS apps that need to store structured data locally.

Apple's low-level concurrency framework for managing parallel tasks on Apple platforms. GCD provides a systematic approach to executing code asynchronously through dispatch queues, enabling efficient utilization of multi-core processors.

Apple's framework for health and fitness data management that provides a central repository for health information on iPhone and Apple Watch. HealthKit enables apps to securely read and write health data with user permission, including activity, nutrition, sleep, vital signs, and medical records.

Cross-platform mobile application development using React Native, enabling the creation of native mobile apps for both iOS and Android using JavaScript and React. This skill represents the ability to build production-quality mobile applications that share code across platforms.

Khaled developed Spring Boot expertise building enterprise-grade backend systems for industrial IoT applications. His experience includes creating microservices architectures handling thousands of beacon readings per second, integrating with Apache Kafka for message streaming, implementing WebSocket communication with automatic fallback to polling, and securing APIs with JWT authentication.

Visual interface design tool for iOS and macOS applications

Apple's framework for working with time-based audiovisual media on iOS and macOS. AVFoundation provides comprehensive APIs for capturing, editing, processing, and playing audio and video content.

Apple's machine learning framework that enables on-device machine learning inference on iOS and macOS. Core ML provides optimized performance for running trained models locally while maintaining user privacy.

Core web programming language for building interactive user interfaces and full-stack applications

Apple's modern programming language for iOS, macOS, watchOS, and tvOS development. Swift combines the performance of compiled languages with the expressiveness of modern scripting languages, featuring strong typing, optionals for null safety, and protocol-oriented programming patterns.

Algorithms and data structures form the foundation of efficient software development. This skill encompasses the ability to analyze problem complexity, select appropriate data structures, design efficient algorithms, and optimize performance for real-world applications. Khaled demonstrated advanced algorithmic competency through successful completion of Amazon's technical coding interviews, which evaluate complex problem-solving abilities at FAANG-level standards.

Khaled developed Java expertise through enterprise-scale backend development, particularly in building microservices architectures. His Java experience includes Spring Boot backend development for industrial IoT systems processing thousands of beacon readings per second, Android application development, and cross-platform code sharing using J2ObjC for translating signal processing algorithms between Java and iOS.

Apple's secure inter-process communication framework for macOS applications

C++ is a powerful, high-performance programming language that extends C with object-oriented features. It is widely used in system programming, game development, embedded systems, and performance-critical applications. C++ provides fine-grained control over hardware resources while supporting modern programming paradigms.

Dart is a client-optimized programming language developed by Google for building fast apps on any platform. It is the primary language for Flutter development, offering strong typing, null safety, and excellent tooling for building cross-platform mobile, web, and desktop applications.

Microsoft's cross-platform framework for building enterprise applications

Apple's legacy programming language for iOS and macOS development, extending C with Smalltalk-style messaging. While largely superseded by Swift for new development, Objective-C remains essential for maintaining legacy codebases and bridging with older frameworks.

Open-source ERP platform customization using Python for business management systems

Python is a high-level, interpreted programming language known for its readability and versatility. Widely used in machine learning, data science, automation, and backend development, Python has become one of the most popular programming languages in the world due to its extensive library ecosystem and ease of learning.

Native iOS application development using Swift and Apple's development ecosystem. This skill encompasses building applications for iPhone and iPad devices, from conception through App Store deployment.

The ability to implement services that run at the operating system level on iOS, continuing to operate even when the app is not in the foreground or the phone is locked. This involves leveraging Apple's BGTaskScheduler, background modes, and careful state management to perform tasks like data sync, location tracking, or processing while respecting iOS battery and resource constraints.

Development for Apple CarPlay, Apple's in-car interface that mirrors iPhone apps on vehicle displays. CarPlay development requires understanding of driver-safe UI design, simplified navigation patterns, voice integration with Siri, and strict Apple guidelines for automotive safety compliance.

Native macOS application development using Swift, Objective-C, and Apple's Cocoa frameworks. This skill encompasses building desktop applications for Mac computers, from system utilities to complex enterprise software.

Development for Apple TV using tvOS, Apple's operating system for living room entertainment. tvOS development requires understanding of focus-based navigation using the Siri Remote, large-screen UI design principles, media playback optimization, and creating lean-back viewing experiences.

Development for Apple Vision Pro using visionOS, Apple's operating system for spatial computing. visionOS development requires understanding of 3D spatial interfaces, mixed reality experiences, eye and hand tracking interactions, immersive environments, and designing comfortable experiences for extended wear.

Development for Apple Watch using watchOS, Apple's operating system for wearable devices. watchOS development requires specialized knowledge of small-screen UI design, glanceable interfaces, complications, health and fitness APIs, and power-efficient background processing for wrist-worn experiences.

Google's mobile and web application development platform. Firebase provides backend services including real-time databases, authentication, cloud functions, analytics, and crash reporting. It enables rapid development of mobile applications without managing server infrastructure.

Leading payment processing platform for internet businesses. Stripe provides APIs and SDKs for accepting payments, managing subscriptions, and handling complex financial workflows. The iOS SDK enables secure in-app payment experiences without handling sensitive card data directly.

Managing client relationships, expectations, and project delivery in professional services

Technical leadership encompasses the ability to guide teams, make strategic technical decisions, mentor engineers, and align technical work with business objectives. This includes both people management skills and the ability to set technical direction for projects and organizations. Khaled demonstrated leadership capabilities through multiple CTO and lead developer roles, and validated these skills through Amazon's rigorous Leadership Principles assessment during their interview process.

The skill of translating business objectives and user needs into detailed, actionable product requirements documents. PRD writing involves defining feature specifications, user stories, acceptance criteria, and success metrics. A well-crafted PRD serves as the blueprint that guides development teams, ensures stakeholder alignment, and provides clear success criteria for product delivery.

The ability to create structured implementation roadmaps that break down complex technical projects into manageable phases. Roadmap planning involves sequencing features based on dependencies, estimating effort, identifying risks, and recommending technology stacks. An effective roadmap provides development teams with clear direction and stakeholders with realistic expectations for delivery timelines.

The ability to analyze complex business problems, understand client needs, and translate them into comprehensive technical strategies. Technical consulting involves creating product requirements documents, designing system architectures, developing implementation roadmaps, and facilitating knowledge transfer to development teams. Unlike hands-on development roles, consulting focuses on strategic guidance and decision-making frameworks.

FFmpeg is a comprehensive multimedia framework for handling video, audio, and other multimedia files and streams. It is the industry standard for media encoding, decoding, transcoding, and streaming.

The ability to raise capital for startup ventures through various channels including angel investors, venture capitalists, and research institutions. This skill encompasses pitch deck creation, investor presentation, negotiation, and understanding term sheets and funding structures.

A software design approach where applications are built to function without network connectivity as the primary mode, treating network availability as an enhancement rather than a requirement. This involves local data storage, conflict resolution strategies, and synchronization mechanisms to merge local and remote data when connectivity is restored.

Design and integration of RESTful web services

The design and implementation of systems that synchronize data between local storage and remote servers. Sync architecture involves managing data consistency, handling conflicts, maintaining ordering, and ensuring reliability across network state transitions. This skill is critical for applications that need to work offline and sync changes when connectivity is restored.

System design encompasses the ability to architect large-scale software systems that handle millions of users, maintain reliability, and scale efficiently. This skill involves understanding trade-offs between different architectural approaches, designing APIs, selecting appropriate databases, implementing caching strategies, and ensuring system resilience. Khaled demonstrated this expertise through intensive preparation for and successful completion of Amazon's technical interview process, which specifically evaluated system design capabilities at FAANG-level standards.

Shopify's templating language for creating dynamic e-commerce themes and custom functionality

Khaled developed PWA expertise through e-commerce and service platforms requiring web applications that work offline and provide app-like experiences. His experience includes implementing service workers for offline support, enabling add-to-home-screen functionality, and designing offline-first architectures for seamless user experiences during connectivity issues.

E-commerce platform development using Shopify and Liquid templating for online stores

Content management system development for websites and web applications

Apple's integrated development environment for iOS, macOS, and other Apple platforms

Distributed version control system for tracking code changes

Dependency manager for Swift and Objective-C projects

The ability to evaluate AI technologies and design integration strategies that enhance existing products or create new AI-powered capabilities. This skill involves understanding AI capabilities and limitations, identifying appropriate use cases, designing system architectures that accommodate AI components, and planning implementation approaches that balance innovation with practical feasibility.

Machine Learning is a subset of artificial intelligence that enables systems to learn and improve from experience without being explicitly programmed. It involves algorithms that can identify patterns in data and make predictions or decisions. Khaled's experience includes integrating ML SDKs for emotion detection in video applications.

Computer Vision is a field of artificial intelligence that trains computers to interpret and understand visual information from the world. It enables machines to identify objects, recognize faces, track movement, and extract meaningful data from images and videos, powering applications from autonomous vehicles to medical imaging.

Natural Language Processing (NLP) is a field of artificial intelligence that focuses on enabling computers to understand, interpret, and generate human language. NLP powers applications like chatbots, voice assistants, translation services, and text analysis tools by bridging the gap between human communication and computer understanding.

Business leadership and entrepreneurial skills encompassing market opportunity identification, resource optimization, commercial ventures, and innovation ecosystem building. This skill represents the ability to identify market gaps, build businesses, and create value through innovative solutions.

Apple's declarative UI framework for building user interfaces across all Apple platforms

Flutter is Google's open-source UI framework for building natively compiled applications for mobile, web, and desktop from a single codebase. It uses the Dart programming language and provides a rich set of pre-designed widgets for building beautiful, responsive user interfaces.

Khaled developed MongoDB expertise through industrial IoT applications requiring high-velocity data ingestion and horizontal scaling. His experience includes designing zone-based database partitioning strategies, self-managing MongoDB clusters on AWS EC2, implementing backup and failover strategies, and optimizing queries for real-time map visualization systems.

A lightweight, serverless, self-contained SQL database engine that is embedded directly into applications. SQLite is the most widely deployed database in the world, found in every smartphone and most computers. For mobile development, it provides reliable, high-performance local data storage without requiring a separate database server.

Khaled gained Apache Kafka experience through industrial IoT systems requiring high-throughput message streaming. His experience includes processing thousands of beacon readings per second in real-time, integrating Kafka with Spring Boot microservices, and designing message queue architectures for distributed systems.

OpenCV (Open Source Computer Vision Library) is an open-source library of programming functions mainly aimed at real-time computer vision. It provides tools for image processing, video analysis, face detection, object recognition, and machine learning integration. OpenCV is widely used in robotics, augmented reality, and AI applications.

Technical interview preparation encompasses the systematic approach to succeeding in software engineering interviews at top technology companies. This includes mastering algorithmic problem-solving, system design discussions, behavioral interviews, and communication techniques. Khaled developed expertise in this area through intensive preparation for Amazon's interview process, successfully passing all stages and receiving an offer for a Senior Team Leader position.

Khaled developed Unreal Engine expertise for non-gaming applications, specifically industrial 3D visualization. His experience includes building real-time factory visualization applications with 3000+ beacon updates, CAD integration via SolidWorks Datasmith plugin, WebSocket communication for live data feeds, and optimization techniques for handling thousands of updating objects without lag.