I will fix bugs and errors in your web app or software


Vetted Pro
Level 2
Certifié par Fiverr Pro
Andrew Maksakov a été sélectionné par l'équipe Fiverr Pro pour son expertise.
À propos de ce service
Looking for a Pro agency to fix bugs and errors in your web app or software frontend, backend or both?
You've found the right partner.
I'm Andrew, Founder of Marrix Power and a Vetted Fiverr Pro. My team has debugged and fixed 100+ web applications and software systems worldwide from simple UI bugs to complex backend errors, broken APIs and performance issues.
What we deliver:
- Bug fixing for React, Next.js, Node.js and Python
- Backend and API error resolution
- Database and query performance fixes
- Authentication and security bug fixes
- Payment integration fixes (Stripe, PayPal)
- Third-party integration debugging
- Performance and slow loading fixes
- Code review and cleanup
Stack: React, Next.js, Vue.js (frontend) · Node.js, NestJS, Python, Laravel, Firebase (backend) · PostgreSQL, MongoDB, MySQL (database).
The Marrix Power Advantage:
- Agency team, personal oversight from Andrew on every project
- We identify root causes, not just symptoms
- Vetted Pro independently approved by Fiverr for technical excellence
- We work with any existing codebase
- Clean fix with documented changes every time
Message us before placing your order.
Découvrez Andrew Maksakov
Vetted Pro
Vetted Pro, Mobile, Web, SaaS, AI and Design Development
Level 2
Andrew Maksakov fait partie du catalogue Fiverr Pro et a été trié sur le volet par une équipe Fiverr Pro agréée pour ses compétences et son expertise.
Certifié pour
Développement d'applications mobiles
Développement de logiciels
Développement de sites Web
Maintenance des applications mobiles
Mobile design
- DeCanada
- Membre depuisdéc. 2020
- Temps de réponse moy.3 heures
- Dernière commande1 mois
Langues
Ukrainien, Russe, Anglais, Polonais
Mon portfolio
Autres services de Développement de logiciels I Offre
FAQ
Can you fix bugs in any web application?
Yes. We fix bugs in React, Next.js, Node.js, Python, Laravel and most modern stacks. Share your codebase and describe the issue — we review and confirm we can fix it before you order.
How do you charge for bug fixing?
Basic covers up to 3 bugs. Standard covers up to 10 bugs or one complex issue. Premium covers unlimited bugs within 30 days. For large or unknown scope message us first.
What if the bug is in a framework you don't support?
We review your code first and tell you honestly. We never accept an order we cannot complete. If it falls outside our expertise we tell you before you pay.
1 avis concernant ce service
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Détails de la notation
- Niveau de communication avec le freelance
- Qualité de la livraison
- Valeur de la livraison
Trier par
L 
lahcenessayeh

États-Unis
Andrew was very professional, answered all of our questions, and provided clear action steps which is exactly what we needed. Highly recommend
50 $US-100 $US
Prix
3 jours
Durée
Utile?
1 avis concernant ce service
| (1) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Détails de la notation
- Niveau de communication avec le freelance
- Qualité de la livraison
- Valeur de la livraison
Trier par
L 
lahcenessayeh

États-Unis
Andrew was very professional, answered all of our questions, and provided clear action steps which is exactly what we needed. Highly recommend
50 $US-100 $US
Prix
3 jours
Durée
Utile?

