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Fiverr Pro
English
$
USD
I will fix bugs and errors in your web app or software
Andrew Maksakov
Vetted Pro
Level 2
5.0
5.0
Vetted by Fiverr Pro
Andrew Maksakov was selected by the Fiverr Pro team for their expertise.
About this gig
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.
Get to know Andrew Maksakov
Andrew Maksakov
Vetted Pro
Vetted Pro, Mobile, Web, SaaS, AI and Design Development
Level 2
Andrew Maksakov is part of the Fiverr Pro catalog and has been hand-picked by a dedicated Fiverr Pro team for their skills and expertise.
Vetted for
App Design
Mobile App Development
Mobile App Maintenance
Software Development
Website Development
- FromCanada
- Member sinceDec 2020
- Avg. response time3 hours
- Last delivery1 month
Languages
English, Ukrainian, Russian, Polish
100+ production apps shipped. 4.9 stars maintained across every single one. That's the standard I've held for 10 years as Founder of Marrix Power — a Vetted Pro software agency building mobile, web, SaaS, AI and design products for startups worldwide.
We cover the full stack: React Native, Flutter, React, Node.js, Python, Firebase, AWS, OpenAI API — from discovery and UI/UX design through development, App Store launch, long-term support and consulting. Our clients range from first-time founders launching their MVP to established businesses scaling their platforms worldwide.
My Portfolio
Other Software Development Services I Offer
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.
Reviews
1 reviews for this Gig
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
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lahcenessayeh
United States
Andrew was very professional, answered all of our questions, and provided clear action steps which is exactly what we needed. Highly recommend
$50-$100
Price
3 days
Duration
Helpful?
Reviews
1 reviews for this Gig
| (1) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
L lahcenessayeh
United States
Andrew was very professional, answered all of our questions, and provided clear action steps which is exactly what we needed. Highly recommend
$50-$100
Price
3 days
Duration
Helpful?
