I build marketplace and real-time SaaS products from zero to production. Over the past years, I’ve taken full ownership of multiple systems—from architecture and back-end APIs to frontend implementation, deployment, and infrastructure decisions. I’m strong at designing clean back end architectures (Node.js, REST APIs, JWT auth), connecting complex frontend flows to scalable back ends, and making system‑level decisions instead of just writing features. While some founder-led projects didn’t scale commercially, they strengthened my ability to think in systems, anticipate edge cases, and ship complete products.…

Seyed Hossein Razavi

I build marketplace and real-time SaaS products from zero to production. Over the past years, I’ve taken full ownership of multiple systems—from architecture and back-end APIs to frontend implementation, deployment, and infrastructure decisions. I’m strong at designing clean back end architectures (Node.js, REST APIs, JWT auth), connecting complex frontend flows to scalable back ends, and making system‑level decisions instead of just writing features. While some founder-led projects didn’t scale commercially, they strengthened my ability to think in systems, anticipate edge cases, and ship complete products.…

Available to hire

I build marketplace and real-time SaaS products from zero to production. Over the past years, I’ve taken full ownership of multiple systems—from architecture and back-end APIs to frontend implementation, deployment, and infrastructure decisions.

I’m strong at designing clean back end architectures (Node.js, REST APIs, JWT auth), connecting complex frontend flows to scalable back ends, and making system‑level decisions instead of just writing features. While some founder-led projects didn’t scale commercially, they strengthened my ability to think in systems, anticipate edge cases, and ship complete products.

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Skills

Experience Level

Node.js
Expert
Socket.IO
Expert
React JS
Expert
MongoDB
Expert
CSS
Expert
Docker
Expert
HTML5
Expert
PostgreSQL
Expert
MySQL
Expert
Kubernetes
Expert
TypeScript
Expert
GraphQL
Expert
Bootstrap
Expert
Java
Intermediate
Android
Intermediate
Python
Intermediate
GitHub Copilot
Intermediate
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Language

English
Fluent

Work Experience

Android Developer (Research & Product Development Project) at Self-Employed
January 1, 2025 - May 1, 2025
Designed and developed an Android-based gamified mathematics learning application for elementary students. Created 8 interactive mini-games covering core math concepts; implemented gamification with points, rewards, progress tracking, and achievements; built local data persistence and user progress management; crafted child-friendly UI/UX and offline functionality; integrated educational objectives with game design principles.
Freelance Full-Stack Developer at Self-Employed
August 1, 2024 - November 1, 2024
Developed a complete production-ready e-commerce web platform using the MERN stack: product catalog with categories, filters, sorting, search, and brand management; product management system (CRUD + image upload); responsive cart and checkout flow; order management with a simulated payment workflow; fully responsive UI optimized for desktop and mobile; admin dashboard for managing users, products, and orders; applied clean architecture, reusable components, and modular backend. Live demo: https://shrazavishop.vercel.app
Android & Back end Developer (Founder Project) at Self-Employed
January 1, 2023 - April 1, 2023
Developed a booking and scheduling platform for barbershops and beauty salons. Implemented appointment scheduling, availability management, and booking workflows; built backend services for authentication, scheduling logic, and user management; designed responsive mobile-first interfaces; managed full-stack development from MVP to deployment.
Full-Stack Developer (Founder Project / Startup Initiative) at Self-Employed
September 1, 2021 - February 1, 2022
Designed and developed a real-time legal consultation platform connecting lawyers and clients. Implemented one-to-one audio/video communication using WebRTC and Socket.IO; secured authentication and role-based access control; built real-time messaging and collaboration workflows; designed backend APIs and scalable server-side architecture using Node.js; managed full product lifecycle from MVP to deployment; implemented encrypted communication workflows.
Android & Back end Developer (Project-Based) at Far Tak Medical Systems
September 1, 2020 - August 1, 2021
Built a telemedicine Android application enabling real-time audio/video calls and chat. Integrated WebRTC for live communication and real-time data exchange; developed Node.js backend to handle authentication, messaging, and medical data transmission; implemented device connectivity features to transmit patient data from oxygen concentrators; collaborated with medical and technical stakeholders during COVID-19 to support remote patient monitoring.
Full-Stack Developer (Contract / Project-Based) at GitiServer
June 1, 2019 - September 1, 2019
Designed and developed an Android application to track employee working hours based on task-level activity. Integrated Trello APIs to fetch tasks, assignments, and activity data in real time; implemented logic to compute working hours and compensation based on task type and workload; collaborated with stakeholders to translate operational requirements into a functional digital tool.
Android & Back end Developer (Contract / Project-Based) at Sursiz (Startup)
March 1, 2019 - May 1, 2019
Developed a marketplace application connecting employers with skilled professionals. Implemented core marketplace features including user roles, profiles, and matching flows. Built Android client and back-end services using Node.js; contributed to rapid MVP delivery under resource constraints.

Education

Master’s degree of Information Technology (E-commerce) at Azad University (IAU)
September 1, 2019 - December 31, 2021
Completed a Master’s degree in Information Technology with a focus on E-commerce. Thesis: “The application of design patterns in reducing programming challenges.” Developed and defended a practical software project as part of the thesis, achieving the maximum score.

Qualifications

M.Sc. in Information Technology Engineering (E-Commerce)
January 11, 2030 - December 16, 2025
Master's degree in Information Technology Engineering (E-Commerce) – Thesis: Software Design Patterns
January 11, 2030 - December 16, 2025
M.Sc. in Information Technology Engineering (E-Commerce)
January 11, 2030 - December 16, 2025
MSc in Information Technology Engineering (E-Commerce)
January 11, 2030 - December 27, 2025
MSc in Information Technology Engineering (E-Commerce) - Thesis on Software Design Patterns
January 11, 2030 - December 27, 2025
Master of Science in Information Technology Engineering (E-Commerce)
January 11, 2030 - June 10, 2026

Industry Experience

Software & Internet, Retail, Professional Services, Media & Entertainment, Education
    Full-Stack E-Commerce Platform (React, Node.js, MongoDB)

    A production-ready full-stack e-commerce platform designed and developed from scratch.

    The platform includes a complete product catalog, advanced filtering and search, shopping cart, order management, admin dashboard, and secure checkout flow. The system is built with scalability and maintainability in mind, following clean architecture principles.

    The front-end is implemented with React and modern UI patterns, while the back-end is built using Node.js and Express, with RESTful APIs and MongoDB for data persistence. The project also includes authentication, role-based access control, and responsive design for mobile and desktop users.

    This project demonstrates my ability to provide end-to-end solutions, architectural decisions, and build reliable and real-world web applications.
    The frontend is fully responsive and optimized for desktop, tablet, and mobile devices.
    The backend provides secure REST APIs, business logic, and data management.

    Live demo:
    https://www.twine.net/signin