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Fiverr Pro
English
$
USD
I will fix backend bugs, normalize databases, and integrate apis
Dayyan Yasir
About this gig
Struggling with slow queries, broken APIs, or deployment headaches? Lets build a backend that is fast, scalable, and flawless.
A messy database or unoptimized architecture can ruin user experience. Whether youre launching a new platform or fixing bottlenecks, I deliver robust, production-ready solutions.
️ What I Do:
- Database Optimization: Restructure and normalize your schema to eliminate redundancy and unlock lightning-fast query speeds.
- API Integrations: Flawless connection of third-party services (payments, auth, maps) or custom RESTful external APIs.
- Full-Stack Connectivity: Bridge the gap between your frontend and backend for seamless, secure data flow.
- Production Deployment: Smooth cloud deployment with secure environment variable configuration.
Tech Stack:
FastAPI, Next.js, Supabase, PostgreSQL, MySQL, Python, C++, Java.
Why Choose Me?
I focus on clean, maintainable code and a performance-first mindset. No "works on my machine" excusesjust scalable results.
NOTE: Every backend architecture is unique. Please message me before ordering so we can map out the perfect technical solution.
Get to know Dayyan Yasir
Dayyan Yasir
Full Stack Developer, ML and Blockchain Engineer
- FromPakistan
- Member sinceJul 2026
Languages
Urdu, Punjabi, English
Full Stack Developer | ML Engineer | Blockchain Developer. I specialize in building modern web applications, AI-powered systems, Ethereum smart contracts, and DApps. Experienced with Python, JavaScript, FastAPI, PostgreSQL, Solidity, and modern development tools. I enjoy tackling challenging problems and delivering scalable, secure, and high-performance solutions that help businesses grow.
FAQ
What information or assets do you need from me to start?
To get started, I will need a clear overview of your project requirements, your current codebase repository (if applicable), access to the hosting/cloud platform for deployment, and documentation for any external APIs you want integrated.
Will my data be safe during database optimization and normalization?
Absolutely. Before making any changes to an existing database structure, I always create a full structural and data backup. If it's a live production app, I perform all schema optimization and migrations in a isolated staging environment first to ensure zero downtime or data loss.
What hosting and cloud platforms do you support for deployment?
I can deploy your backend application and databases to a variety of modern environments depending on your needs, including Supabase, Vercel, Render, Railway, AWS, or traditional Linux VPS servers. We can discuss the best, most cost-effective option for your specific traffic requirements.
Will I get the full source code, and is it documented?
Yes, you receive 100% ownership of the source code. I pride myself on writing clean, modular, and maintainable code. The backend logic and database migration paths will be clearly commented so that any developer can easily understand and scale the architecture in the future.
Do you build frontends, or just connect them?
This gig focuses on backend development, database optimization, and APIs. However, I specialize in full-stack connectivity—meaning I will write the precise integration code needed to seamlessly link your existing frontend (like Next.js or React) to the backend.
