Erfan S.

Full-Stack & Frontend Developer | React, Angular, JavaScript, Spring, Django, .NET 💻 Building Scalable, High-Performance Web Applications I am a Full-Stack Developer with expertise in React, Angular, JavaScript, Spring, Django, and .NET. With several years of experience developing complex web applications, mapping platforms, and data-driven visualizations, I specialize in creating high-performance, interactive user interfaces and scalable backend solutions. 🔹 My Key Expertise ✅ Frontend Development – React, Redux, Angular, Next.js, TypeScript ✅ Backend Development – Spring (Java), Djngo (Python), .NET (C#), FastAPI, Node.js ✅ Databases – MySQL, PostgreSQL, Oracle ✅ Web & Mapping Technologies – CesiumJS, Mapbox, Leaflet ✅ Cloud & DevOps – AWS, GCP, Docker, Kubernetes ✅ 3D & GIS Integration – Web-based visualization of point clouds, 3D models, and terrain data 🔹 Notable Work Experience ✔ Learning Management Platform – Built a React frontend with a Spring Java backend, supporting video conversion to HLS and live watermarking ✔ Time-Series Visualization System – Developed CesiumJS-based mapping and real-time data dashboards for visualizing sensor and 3D datasets ✔ Drone Imagery & 3D Processing – Built a React/Redux frontend and optimized backend workflows for large-scale geospatial data processing ✔ Construction Digital Twin – Engineered a 3D visualization platform for BIM models, terrain datasets, and city planning I have a strong problem-solving mindset and focus on performance optimization, clean UI/UX, and scalable architecture. Whether you need a dynamic frontend, a robust backend, or a full-stack application, I deliver reliable, maintainable, and high-quality code. 🔹 Let’s Build Something Great Together! ✔ Available for both short-term and long-term projects ✔ Skilled in cross-functional collaboration and agile development ✔ Open to frontend-heavy roles or full-stack development Message me today to discuss your project!