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I will fix your frontend and backend projects and optimize performance
Wilson Huo
About this gig
I'm a full-stack developer with 15+ years of experience in debugging and optimizing complex systems. I fix critical errorsin native mobile apps (iOS/Android), H5 websites, and backend platforms from UI glitches to server crashes.
What I can fix for you:
- Native app bugs (Swift, Kotlin, Java, Flutter, React Native)
- Frontend issues (HTML5, CSS, JavaScript, React, Vue, Angular)
- Backend errors (Node.js, Python, PHP, Java, .NET, SQL/NoSQL)
- API integration failures, third-party SDK issues, and performance bottlenecks
- Core technical problems that block your release or business logic
Why choose me?
- Fast delivery: most issues resolved within 2448 hours
- Clear daily updates and responsive communication
- Thorough testing and clean, documented code
- Free revisions until you are 100% satisfied
I'm new to Fiverr but have solid commercial experience. I offer this special low price to build my reputation. Send me your code repo and error logs I'll reply within 2 hour.
Let's get your project back on track!
Get to know Wilson Huo
Wilson Huo
Senior AI Architect FullStack CTO AI Agents
- FromChina
- Member sinceJul 2026
Languages
English
Fractional CTO & AI Architect with 25 years building enterprise systems. I specialize in private LLM deployment (Qwen2, DeepSeek), RAG systems, and AI Agents that automate workflows—cutting costs by 60% and boosting output by 80%. Full-stack expertise: live streaming (million-DAU), e-commerce, blockchain, and computer vision. Stack: C++, Java, Python, LangChain, vLLM, Docker, K8s. I translate business goals into shipped products. Message me to scope your project.
FAQ
What information do you need from me before you start?
Please provide: (1) Your code repository link (GitHub/GitLab/Bitbucket) or the project files, (2) A clear description of the issue or bug, (3) Step-by-step instructions to reproduce the problem, and (4) Any error logs or screenshots if available. The more detail you give me, the faster I can diagnos
My project uses a tech stack not listed in your Gig. Can you still help me?
Possibly! I work with a wide range of technologies including Swift, Kotlin, React Native, Flutter, React, Vue, Angular, Node.js, Python, PHP, and Java. Even if your exact stack isn't listed, please send me a message with your project details and I'll let you know if I can help before you place an or
Do you offer free revisions? What if I'm not satisfied with the fix?
Yes, every package includes free revisions until you are fully satisfied with the result. My goal is to solve your problem completely, not just apply a temporary patch. If something isn't working as expected after delivery, simply let me know and I will make it right at no extra charge.
How do you handle complex or unknown issues that are hard to diagnose?
I follow a structured debugging process: First, I analyze your codebase and replicate the issue in my local environment. Then, I trace the root cause using systematic testing and logging. Once I identify the source, I implement a clean, permanent fix and thoroughly test it before delivery. If the is
Do you support ongoing maintenance or future bug fixes after delivery?
Yes! I offer 7 days of post-delivery support for all packages. If you encounter any new issues related to my work during that period, I will fix them for free. For long-term maintenance or regular updates, feel free to message me and we can set up a custom recurring arrangement.
