I provide professional bug fixing and backend troubleshooting services for Django, FastAPI, REST API, PostgreSQL, MySQL, Docker, Nginx, and existing web applications.
If your backend application has errors, broken APIs, database issues, slow performance, deployment problems, authentication bugs, or unexpected crashes, I can help you find the root cause and fix it properly.
My services include:
• Django bug fixing
• FastAPI bug fixing
• REST API error fixing
• Backend logic troubleshooting
• Database query and relationship issues
• PostgreSQL and MySQL error fixing
• Authentication and permission issues
• API request/response issues
• Frontend-backend connection issues
• Docker and Nginx deployment issues
• Server and environment configuration problems
• Slow API and report optimization
• POS and e-commerce backend issue fixing
• Existing project code review and improvements
• Error logs analysis and debugging
I have practical experience working on real business systems including POS software, e-commerce backends, order management, inventory systems, customer/supplier ledgers, reporting modules, courier integrations, payment workflows, and API-based automation.
Why choose me?
• 3 years of professional backend development experience
• Strong knowledge of Django, FastAPI, REST APIs, PostgreSQL, and Docker
• Ability to understand existing code quickly
• Root-cause focused debugging, not temporary patches
• Clean, secure, and maintainable fixes
• Clear communication and regular updates
• Experience with real business applications
Before starting, I will review the issue, understand the current flow, check the error logs or code, and then provide a clean and reliable fix.
Whether your project has API errors, database issues, deployment problems, broken backend logic, or performance problems, I can help you fix it professionally.