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Fiverr Pro
English
$
USD
I will find and fix problems in your app or website
Denis K
About this gig
Is your app, website or platform not working as it should? Are users seeing errors, losing updates or unable to finish what they started?
I will investigate the symptoms, find the cause, repair the agreed issues and add checks to help catch the same problems if they return. You do not need to know the technical cause.
You receive the updated code and a clear explanation of what changed and how I checked it. A round of changes is included to meet the agreed result.
Hosting setup, a full rebuild and ongoing support are not included unless we agree otherwise in advance. No repair can guarantee that an app will never have another problem.
Please message me before ordering so we can agree the work, price and delivery time. The listed package covers the work we agree in advance. Larger requests need a custom offer before purchase.
I use AI coding tools and personally plan, review and check the work. We agree which tools may see your code or data first. Never send passwords or secret keys in chat.
Get to know Denis K
Denis K
AI Automation Business Systems Engineer
- FromSerbia
- Member sinceSep 2026
Languages
English, Russian
I help businesses fix unreliable web apps, APIs, and AI integrations. With 8+ years in software engineering, I work with Python, Django, FastAPI, React, TypeScript, Web3, and MCP. I diagnose backend and frontend issues, connect services through APIs and webhooks, automate workflows, and add practical AI features. I focus on the root cause, make the smallest reliable change, test the result, and provide a clear handover. You get maintainable work, clear communication, and no unnecessary complexity.
Other Software Development Services I Offer
FAQ
Do I need to know what caused the problem?
No. Tell me what is going wrong and what should happen instead. Share examples if you can. Finding the cause is part of the agreed repair.
What is included?
Finding the cause, repairing the issues we agree on, checking the result and giving you the updated code with a clear explanation.
How do we agree the price?
Message me before ordering. We discuss what is happening, the work needed and the expected result. The listed price is the starting package price for agreed work. Larger requests need a custom offer before you purchase.
What if you find more work is needed?
I explain what I found and discuss the next step before doing work outside our agreement. I do not add charges without your approval. Investigation is already included in the repair we agreed.
What does one revision mean?
A round of changes to meet the result we agreed. Additional work, new features and ongoing maintenance need separate agreement.
Will the problem never happen again?
I add checks to help catch the same problems if they return. No repair can guarantee that an app will never have another problem.
Do you use AI?
Yes. I use AI coding tools and personally plan, review and check the work. We agree which tools may see your code or data first. Tell me before ordering if AI is not allowed, so I can confirm whether I can accept the work.
When does delivery start?
We agree the work and delivery time before you order. Fiverr starts its order timer when you submit the required information or that step is skipped. I follow the deadline shown on your order. This is not an emergency or round-the-clock service.
