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I will fix python, javascript, react, node js, fastapi, api bugs, authentication issues
mamteem
About this gig
Professional Python, JavaScript, React, Node.js,& API Bug Fixing Services
Is your application broken, showing errors, or not working as expected? I will quickly diagnose and fix bugs in your Python, JavaScript, React, FastAPI, Node.js, JSON or API based project with clean and reliable solutions.
I specialize in identifying root causes not just temporary fixes so your application runs smoothly and efficiently.
I can fix:
Python errors, JavaScript bugs, React issues, FastAPI/Node.js backend problems, REST API integration errors, authentication issues, database connection problems, CORS errors, deployment issues, and performance bottlenecks.
What You'll Receive
- A professional investigation of the issue
- Clean, maintainable code
- Fully tested fixes
- Performance improvements where applicable
- Clear communication throughout the project
- An explanation of the root cause and implemented solution
I focus on delivering long term stability, not just quick patches. Your code will be optimized, structured, and ready for production use.
Please contact me before ordering so I can understand your issue and suggest the best solution.
Get to know mamteem
mamteem
AI Automation Developer, Python Expert, API Integration and Custom Web Solutions
- FromNigeria
- Member sinceJul 2026
Languages
English, French, Spanish
Hi! I am a professional Python developer with expertise in AI automation, API integration, and custom software solutions that help businesses save time and improve efficiency.
I build reliable, scalable applications using Python, FastAPI, Flask, JavaScript, React, SQL databases, and modern development tools. Whether you need workflow automation, API integration, AI powered solutions, web scraping, bug fixing, or a custom web application, I focus on delivering clean, maintainable code and practical solutions tailored to your business goals.
Other Software Development Services I Offer
FAQ
Can you fix bugs in an existing project?
Yes. Whether it's a personal project, startup application, or business software, I can work with existing codebases and identify the root cause of issues.
Do you work with urgent bug fixes?
Yes. If you're facing a critical issue, contact me before ordering. I'll let you know my availability for priority or same day delivery.
What types of bugs can you fix?
I fix issues related to Python, JavaScript, React, Node.js, FastAPI, REST APIs, databases, authentication, deployment, and third party integrations.
Can you improve my code while fixing bugs?
Yes. If appropriate, I can refactor sections of your code to improve readability, maintainability, and performance.
Will you explain what caused the bug?
Absolutely. I explain the root cause of the issue and the changes made so you understand what was fixed.
Will my source code remain confidential?
Yes. Your project, source code, credentials, and business information are treated as confidential.
Do you provide support after delivery?
Yes. I offer post delivery support for issues related to the completed work within the agreed scope.
