Freelance / Self-Employed - Full-Stack Web & Mobile App Developer
Self-employed
Mar 2023 - Current (3 years 4 months)
Build responsive web applications and websites using React and Next.js; provide UX/UI guidance during implementation (layout, hierarchy, accessibility, mobile-first design). Develop backend APIs and services using Node.js (Express), Ruby on Rails, and Python (FastAPI/Flask); implement database-backed features and third-party integrations. Developed a Python-based ETL web application (Streamlit) to automate data extraction, transformation, and analysis; built SQL-based reporting and dashboards (Power BI/DAX). Created Python/OpenCV utilities for image analysis and defect detection; engineered microcontroller-based data logging tools that replaced commercial instruments and delivered $100K+ in cost savings.