I will fix bugs and optimize your mern stack web application fast and safely

I need access to your code (Git repo or zip), a brief description of the app, tech stack details (React/Next, Node/Express, MongoDB), and a clear list of bugs or issues you’re facing. Share any error screenshots or logs you have—that helps me reproduce and fix faster.

Yes. Most of my work in this gig is fixing and optimizing existing MERN projects. I’ll first review the structure, then focus on the specific bugs or performance problems you mention. If I see bigger architectural issues, I’ll flag them and suggest next steps, but won’t change major patterns without

I handle front‑end errors (UI glitches, broken components), backend/API issues (500 errors, auth problems), database bugs (query errors, schema issues), performance bottlenecks, and deployment/config problems. For very large refactors or new features, we’ll use a custom offer instead of the standard

If a new bug is directly caused by the changes I made, I’ll fix it within the revision window of your package. If it’s unrelated or part of a different feature, we can handle it via a new order or custom offer. This keeps the scope clear and protects both of us.

That depends on the package. Basic focuses on 1–2 critical bugs. Standard and Premium include performance checks (slow pages, heavy queries, large bundles) and targeted optimizations. I’ll share a short summary of what was improved and what still needs work for long‑term scaling.

Small tweaks connected to a bug fix (e.g., minor UI adjustments) are fine. Larger new features (dashboards, new modules, payments, etc.) are better handled as a separate “feature development” or MERN MVP gig so we can estimate properly and avoid scope creep.