I will fix a react nextjs javascript or supabase web app bug


About this gig
Is a specific bug blocking your React, Nextjs, JavaScript, TypeScript, or Supabase web app?
I will investigate one clearly defined, reproducible issue, implement a focused fix, and verify the result using the tests and development workflow available in your project.
My process includes:
- reviewing your reproduction steps and expected behavior
- tracing the likely root cause
- making the smallest maintainable code change
- running relevant tests, type checks, or builds when available
- explaining what changed and how I verified it
I am the founder and sole builder of a live web product. I use AI-assisted development to work efficiently, while remaining responsible for understanding the task, reviewing every change, and validating the delivery.
Please message me before ordering if the issue involves production access, payments, authentication migrations, security incidents, or unclear scope.
Packages do not include redesigns, new applications, production deployment, hosting or account purchases, credential sharing, data migrations, or unlimited debugging. If the issue is larger than the selected package, I will explain the scope before additional work begins.
Respect third-party rights
Please be aware that it is against Fiverr's policies for sellers to include themes, templates, or any other elements that infringe third-party rights or applicable laws in the delivered work. Read more about in our Guide to Responsible Digital Creation.
Get to know Brenden
Founder and Web App Builder
- FromJapan
- Member sinceDec 2022
Languages
Japanese, English
FAQ
Do you guarantee every bug can be fixed inside the selected package?
No. I will assess the supplied reproduction steps and scope. If the work is broader than the selected package, I will explain that before beginning additional work.
Will you work directly in production?
Production changes are excluded. I prefer working from the repository in a local or staging environment so changes can be reviewed and verified safely.
Can I send passwords or API keys?
Please do not send passwords, API keys, customer data, or other secrets. Use sanitized examples and Fiverr-approved secure methods only when access is genuinely necessary.
Do you use AI?
Yes. I use AI-assisted development to work efficiently, while remaining responsible for scope, implementation, review, testing, and the final delivery.
What counts as one bug?
One reproducible problem with one expected outcome. Unrelated errors, new features, redesigns, and general cleanup are separate work.
