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Charles I
@cinwald
Full Stack Developer
United States
English
About me
Full Stack Developer | React Expert | AI Integration | 5+ Years Experience
I build scalable web & mobile apps that drive results. Proven track record: $3M+ revenue generated, 600K+ users served.
Services:
✅ Full Stack Development (React, Node.js, Python FastAPI)
✅ Mobile Apps (React Native)
✅ API Development & Integration
✅ AI/ChatGPT Integration
✅ E-commerce Platforms
✅ AWS Cloud Deployment
Tech: React | TypeScript | Python | FastAPI | PostgreSQL | MongoDB | AWS
Clean code, responsive design, performance-optimized. Flexible timelines.
Message me to discuss your project! 🚀
Skills
Charles I
Offline •
Average response time: 1 hour
See my services
Online Coding Lessons
I will teach you react and jsx
Cross-Platform Development
I will build your cross platform mobile app with react native
12 Reviews
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
1-5 out of 12 Reviews
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fredchernow
United States
Charles was very friendly and knew what he was talking about.
Helpful?
jinwald12
United States
Charles I is an exceptional mobile app developer! The professionalism in his work, coupled with detailed documentation and code expertise, really stood out. Plus, his politeness, quick responses, and going above and beyond made the collaboration truly pleasant. 👌
Helpful?
lynnechernow
United States
Cinwald was so professional. He taught me well. He has very good communication skills. He knows React really well and explained it to me very clearly. I'll contact him again for other skills I need to know. He has a lot of patience!
Helpful?
danielk1285
Israel
Highly recommend working with Charles, self starter and fast delivery. Very professional.
Helpful?
sheree1990
United States
I asked him to help me with an assessment but the work he did was not accepted. He didn’t pay enough attention to the requirements. He completed the assessment in an hour which was surprising, but then I found that that it’s not working properly. I wasted money that I could’ve used to hire someone else to help me. He really ruined many chances for me!
Seller's Response
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