Kartikeya Kumaria Portfolio

Experience

Feb 2024 – Present

Built and deployed volunteer registration mobile app for Santa Cruz Mountain Arts Center (SCMAC) using Expo, React Native, and CSS, reducing manual sign-up time by 60% and increasing volunteer conversions by 40% within first 3 months
Translated over 12 Figma components into fully responsive UI for both iOS and Android platforms, ensuring consistent performance across various screen sizes including tablets, improving cross-device compatibility by 95%
Integrated Firebase Firestore to fetch and render user-specific data (name, date of birth, email) on profile views, enhancing data accessibility and improving profile load times by 30%
Implemented custom error-handling for login and profile update workflows using Firebase Authentication, resulting in 50% decrease in failed login attempts and improved user feedback during credential validation
Designed and launched YFIOB, a survey-based web app for K–12 career discovery using React.js, Next.js, Tailwind CSS, and Firebase, achieving 100% functional test coverage with React Testing Library, and onboarding 5+ contributors via documented Notion workflows and pair programming sessions
Successfully deployed YFIOB application to production at https://yfiob2--yfiob2.us-central1.hosted.app/, providing live access to K–12 students for career exploration and survey completion

Oct 2024 – Apr 2025

Implemented Figma designs for CruzHacks websites, contributing to a 20% increase in task completion
Built 15+ reusable React components, reducing future dev time by 30%
Maintained the website codebase and updated 2025 content
Led weekly meetings and boosted team collaboration by 25%

Apr 2024 – Aug 2024

Updated and cleaned client onboarding data by modifying null entries in MySQL and correcting CSV inputs, resolving data mismatches that were causing API ingestion failures and restoring full client onboarding functionality within 2 days
Onboarded 3 backend developer interns by setting up local environments with Python virtualenv, resolving MySQL port and credential issues, and configuring dependency installs using pip, enabling full backend run-time setup in under 1 day
Developed custom Django REST Framework API endpoint to validate user authentication flow, tested POST and GET HTTP response statuses in Postman, and verified accurate field mappings in relational database schema
Managed API enhancement tasks using GBCS University's internal workflow system, identifying and escalating deprecated endpoint logic to executive director, and coordinating updates that reduced internal bug reports by 20%
Participated in cross-team sprint planning to ensure backend timelines aligned with frontend delivery schedules, helping reduce integration rework by 15% and ensuring milestone completeness on time

Oct 2023 – Dec 2023

Extended Open Energy Dashboard (OED) by implementing feature modules to meet federal compliance requirements for agencies focused on climate analytics, contributing to dashboard readiness for real-time sustainability data reporting
Successfully merged Pull Request #1087 to the official OED repository, implementing BTU conversion functionality that enables dual-unit energy reporting for federal compliance requirements
Built custom JavaScript-based conversion engine to process uploaded CSV files and transform kWh energy readings to BTUs, integrating unit logic directly into OED's backend workflow to support dual-unit reporting with zero data loss
Wrote and validated unit and integration tests using Mocha.js for energy conversion functions, CSV parsers, and edge cases (e.g., null/zero energy values), achieving full validation coverage for all energy data types
Used Git version control, configured Docker containers, and resolved merge conflicts for multi-developer collaboration, reducing environment-related setup issues by 40% and ensuring consistent builds across local and containerized setups
Debugged and deployed Node.js features using Mac/Linux terminal utilities, diagnosing cross-platform dependency issues and improving deployment reliability across development and staging environments

June 4 – July 10, 2025 | GitHub Repository

Developed comprehensive full-stack blog platform with AI tutorial generation featuring user authentication, password reset, blog CRUD operations, and ML-powered content creation using Django REST Framework
Built responsive frontend with React 18, JavaScript ES6+, React Router, Context API, and Tailwind CSS with Vite build tool for optimized bundling and hot module replacement
Engineered advanced ML pipeline with SentenceTransformer, PyTorch neural networks, scikit-learn TfidfVectorizer, and NLTK for text preprocessing with cosine similarity matching
Architected production-ready microservices: Django backend on Railway, PostgreSQL on Supabase, React frontend on Vercel with custom domain and global CDN distribution
Implemented advanced features including tutorial progress tracking, rating systems, content categorization, ML-powered suggestions, and fully responsive mobile-first design

Developed full-stack CRUD number guessing game with randomly generated number between -1,000,000 and 1,000,000, integrated background music, sound effects, and dynamic button visibility based on game states
Optimized user experience with interactive elements and real-time feedback, utilizing HTML, CSS and vanilla JavaScript for frontend to toggle button visibility and send user's guess
Used Node.js and MongoDB for backend to store game logic, separated logic into API routes for each game state, processes user's guess data from frontend and delivers appropriate response messages
Implemented game logic to decide responses (Too High, Low, or Exact) and handle user surrender functionality with real-time backend communication

February 21 – May 23, 2025 | GitHub Repository

Developed full stack task manager application using React for frontend, Redux for state management, HTML, CSS, JavaScript, Node.js, Express.js for backend, and PostgreSQL17 with PgAdmin4 for database
Implemented user authentication with JSON Web Tokens (JWT), created RESTful APIs using Express.js for CRUD operations for adding, updating and deleting tasks once user logs into their account
Optimized backend performance to handle high concurrency and utilized libraries including Axios for HTTP requests, Sequelize as ORM for PostgreSQL, and React Router for client-side navigation
Enhanced task management efficiency and provided intuitive user interface with seamless task operations and responsive design