Jim S.
100% Job Success
Top Rated Plus

Senior Fullstack Engineer / Internal Tools / Startup Growth | Py | JS

Top 3% on UpWork - Internal tool development + SaaS Development + Startup Growth. Contractor in companies in the Fortune 500 and Inc. 5000 list. Specializing in: - Startup Development using React, React Native, Django, Stripe, and Supabase. - Building internal tools for complex systems (APIs, fraud prevention, AI integrations, dashboards, etc.) ✅ Engaged Innovator: As a serial tech founder with over 15+ startups under my belt and engineer in multiple high performing companies, I continuously work towards helping interesting companies achieve rapid growth through tech. My expertise lies in creating robust, scalable platforms that drive growth and adapt to evolving business landscapes. Delivering not just code, but a business advantage in both B2B and B2C products. ✔️ Adaptive Development Strategies tailored to meet unique market challenges. ✔️ Exceptional Communication that ensures project clarity and client satisfaction. ✔️ Comprehensive Startup experience that comes with not only agile tech skills but a business growth mindset. Happy to connect and help fellow innovators!
Work history


  • Python
  • Sass
  • RESTful Architecture
  • API Integration
  • Web Application
  • Redux
  • Progressive Web App
  • API

Get started working with Jim quickly with these predefined projects.

Get started working with Jim quickly with these predefined projects.

You will get an MVP in less than a week.

From $500
2 days delivery