
Khawar Shahzad
AI and Automation Specialist: Web and Mobile Apps, Bots, Data Solution
Compétences

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Expérience professionnelle
Software Engineer
Upwork • Freelance
Mar 2023 - Present • 3 yrs 4 mos
Developed high-performance systems and applications using C, C++, Java, and Python, applying low-level programming concepts, memory management, and object-oriented design principles across both systems-level and application-level projects. Built dynamic, responsive front-end interfaces using HTML5, CSS3, Bootstrap, JavaScript (ES6+), and React.js, ensuring cross-browser compatibility, mobile responsiveness, and optimized UI/UX across custom websites and web applications. Engineered robust back-end systems and server-side logic using Node.js and Python, designing and consuming RESTful APIs and GraphQL APIs for efficient, scalable data communication between client and server layers. Integrated and automated workflows using AI automation tools and APIs (OpenAI/LLM-based), building intelligent features such as chatbots, content generation pipelines, and process automation into client applications. Delivered full e-commerce and CMS solutions using WordPress and Shopify, including custom theme development, plugin/app customization, payment gateway integration, and performance tuning for production deployments. Executed thorough unit testing, integration testing, and splash/stress testing in C/C++ environments, debugging at both the compiler and runtime level to ensure code reliability, stability, and security. Delivered end-to-end custom software and website development, managing the full development lifecycle from architecture design and coding to deployment, version control (Git), and ongoing technical support.