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$
USD
I will fix react nextjs typescript bugs and frontend issues
OlgaFrolova
About this gig
Are you experiencing bugs, errors, broken functionality, or performance issues in your React or Next.js application?
I will diagnose, debug, and fix issues in your existing React, Next.js, JavaScript, or TypeScript project. I focus on identifying the root cause and providing clean, maintainable fixes instead of temporary workarounds.
I can help you with:
- React & Next.js bugs
- JavaScript & TypeScript errors
- Broken components and application logic
- Redux / Redux Toolkit issues
- REST API integration issues
- Authentication, JWT & session problems
- Forms and validation
- Responsive design and UI bugs
- Rendering and hydration issues
- Performance problems
- Next.js routing and data fetching issues
- Dashboard and admin panel bugs
Tech stack:
React, Next.js, TypeScript, JavaScript, Redux Toolkit, HTML, CSS, SCSS, Tailwind CSS, Bootstrap and REST APIs.
Why work with me?
- Clean and maintainable fixes
- Root-cause debugging
- Existing codebase support
- Clear communication
- Source code included
Please contact me before ordering with a short description of the issue, screenshots or error messages, and relevant project details.
For complex issues or multiple bugs, I can provide a custom offer.
Get to know OlgaFrolova
OlgaFrolova
FullStack Developer ReactJs, NextJs TypeScript NestJs
- FromKazakhstan
- Member sinceAug 2026
- Avg. response time1 hour
Languages
English
Full-Stack Developer specializing in React, Next.js, TypeScript, and NestJS. I build fast, scalable, and user-friendly web applications — from responsive interfaces to secure backend APIs.
I can help with custom web development, bug fixing, API integrations, performance optimization, Redux state management, authentication, and full-stack features.
I focus on clean, maintainable code, clear communication, and solutions that solve real business problems — not just code that works.
Other Software Development Services I Offer
FAQ
Can you fix urgent production bugs?
Yes, depending on my availability and the complexity of the issue. Contact me with the details and required deadline before placing an order.
What information do you need to start?
Please send a description of the issue, screenshots or error messages, steps to reproduce the bug, your tech stack, and access to the relevant source code.
Can you work with existing React or Next.js projects?
Yes. I specialize in debugging and improving existing React, Next.js, JavaScript, and TypeScript applications while keeping the current architecture in mind.
Do I need to contact you before ordering?
Yes. Please contact me first and describe the issue. This allows me to review the scope and recommend the right package or create a custom offer.
What if my problem is more complex than your packages?
Send me the project details before ordering. I can evaluate the scope and create a custom offer based on the complexity and estimated workload.
Can you fix backend and API issues too?
Yes. I work with Node.js, NestJS, REST APIs, PostgreSQL, authentication, and API integrations. Please contact me first so I can evaluate the issue.
