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$
USD
I will fix website bugs, boost speed and performance fast
Maxim Dev
About this gig
Got bugs dragging your site down? Pages taking forever to load? Broken layout, missing features, poor Core Web Vitals? I fix that. No gimmicks just real solutions that stick.
I'm a full-stack web developer fluent in React, Next.js, TypeScript, NestJS, PHP, MySQL, WordPress, and beyond. I debug critical issues, optimize architecture, and implement features that actually scale.
What I deliver:
- Bug fixing: layout breaks, JavaScript errors, backend crashes
- Performance upgrades: image minification, lazy loading, cache optimization
- Core Web Vitals: LCP, FID, CLS improvements across all devices
- Feature enhancements: plugin logic, dynamic components, custom APIs
- Security and patching: XSS, injection, outdated package mitigation
- Database optimization: query tuning, index fixes, structure cleanup
- Code refactoring: modular structure, reduced bloat, faster runtime
Why choose me:
- You get detailed changelogs and full transparency
- I don't bandaid I solve and future-proof
- Ultra-fast response and clear communication
- If its not better after my work it doesnt ship
Click Continue and dont forget to use promo code Noera20 in chat for 25% OFF your first order.
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 Maxim Dev
Maxim Dev
From idea to launch: clean scalable full stack websites
- FromKazakhstan
- Member sinceMay 2025
Languages
English, Russian, Kazakh
I’m a web developer experienced in building functional, high-performance web apps. I work with Next.js, React, NestJS, TypeScript, and more. Projects include EduHub - an educational platform praised by Eurasia Group, a CRMP site with full backend integration, and custom XenForo add-ons. I deliver quality, meet deadlines, and offer a tailored approach. Need a professional solution? Let’s work together!
My Portfolio
FAQ
What types of bugs can you fix?
I handle everything from layout issues and broken UI to backend logic failures, routing problems, and API errors. If it's a bug - I’ll squash it.
Can you improve the loading speed of my site?
Yes. I use techniques like code splitting, lazy loading, CDN optimization, and server tuning to boost speed significantly.
I’m not sure what’s wrong with my website — can you investigate?
Absolutely. I offer diagnostics if you're not sure where the issue lies. Just describe what you're experiencing, and I’ll take it from there.
Can you work with my existing codebase or CMS?
Yes. I work with all major stacks, CMS platforms, and frameworks - whether it’s raw code or a managed platform.
Do you add new features too, or just fix bugs?
I do both. Whether you want to fix something broken or build something new, I’ve got you covered.
What do you need from me to get started?
1. A brief description of the issue or request. 2. Access to your code, CMS, or staging environment. 3. Any screenshots, error messages, or reference materials.
Which platforms and technologies do you support?
I work across a wide range of platforms and stacks - from classic PHP and WordPress to advanced frameworks like React, Next.js, and NestJS. CMS systems, custom stacks, or legacy codebases - I can handle them all. Just send over your setup and I’ll take it from there.
Will you keep a backup before making changes?
Yes. I always create a backup or work on a separate branch/staging environment unless instructed otherwise.
What if the issue comes back after delivery?
I offer post-delivery support based on the package you choose. I stand by my work and ensure long-term stability.
Do you sign NDAs or work under white-label?
Yes, I sign NDAs and can work under your brand if needed.
