Sandhya Harshakumar

Full-stack developer with knowledge in front-end technologies including HTML5, CSS3, JavaScript, Bootstrap, and React, alongside back-end proficiency in Node.js, Express, SQL, PostgreSQL, and PHP. Currently focused on integrating AI and Generative AI into development workflows. Experienced as a self-employed Company Director, delivering SEO and digital support to small businesses, ensuring project completion from concept to deployment in collaborative environments.

• Fiorellino – Responsive Event Florist Website (sandhya80.github.io/Fiorellino)
• Used HTML5, CSS3, JavaScript, and Bootstrap 5 to design and develop a floral services website with reusable components (image carousels, modal popups for login/registration with form validation logic, animated service flip cards) for elegant UI/UX
• Integrated >3 interactive features: newsletter subscription modal, search functionality, and animated testimonials slider
• Implemented SEO and accessibility enhancements (structured data, e.g. JSON-LD, and WAI-ARIA role), alongside lazy loading, defer scripts, and semantic markup to achieve a performance score of 100% on Google Lighthouse, which was used to conduct extensive validation via W3C (HTML/CSS), JSHint/ESLint
• Used GitHub Copilot to streamline debugging, refactoring, and maintaining code quality

Python FastAPI Application 

• Created endpoints for data submission and retrieval, documented by auto-generated interactive docs via Swagger UI and ReDoc. Configured and tested endpoints with Uvicorn for local development and hot-reloading
• Leveraged Python Type Hints, alongside Pydantic models for runtime data validation, type enforcement, and clear error reporting
• Followed best practices for API security, maintainability, and extensibility, guided by the OWASP Top 10 principles, e.g. environment variable management to handle API keys securely

Custom Flashcards – Interactive Quiz Web App (sandhya80.github.io/Custom-Flashcards/)

• Developed a dynamic, category-based flashcard app with add/edit/delete functionality using vanilla JavaScript, HTML5, and CSS3
• Built a responsive, mobile-friendly UI with Dark/Light Mode toggle and accessible colour schemes
• Implemented modular JS architecture for maintainability, handling state management, DOM updates, and event-driven user interactions, and used array methods (map, filter, forEach, etc.) and input validation for efficient and secure data handling
• Added support for category filtering, random shuffling, and a countdown timer with real-time alerts and score tracking, with an enhanced Edit Flashcard UI, where users can filter questions by category and update them via dynamic dropdowns
• Integrated localStorage for persistent data saving and user progress retention

• Full-Stack Engineer Pro Career Path - Codecademy
• API Development with Swagger and OpenAPI - Codecademy
• jQuery - Codecademy
• Python 3 - Codecademy
• PHP - Codecademy