I will fix or optimize your backend performance

Hello,

My name is Karyana Yandi. I have been working as a Full Stack Web Engineer for the last 5 years. I have built a portfolio, web based business applications, e-commerce applications, serverless applications, clone applications, cross-platform mobile apps, etc.

In this gig, I offer to fix or optimize your Rest API / Backend service

What I Can Do:

• Diagnose and provide a detailed performance report
• Fix bugs, errors, and broken endpoints
• Optimize slow queries and heavy API endpoints
• Refactor code for cleaner architecture and better readability
• Improve security and authentication
• Add logging, monitoring, and documentation
• Benchmark and show before-and-after performance results

Why Choose Me:

• 5+ years of full stack experience
• Clean and well-documented code
• Fast communication and clear progress updates
• Focus on long-term maintainability

Whether you need a small fix or a full backend overhaul, I will make sure your API runs faster, smoother, and more efficiently.

You can contact me before order to describe your request and i'll give best solution for you.