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English
$
USD
I will debug fix and finish your ai app
Sem Hiel
5.0
5.0
About this gig
Hi, I am Sem. Your AI app almost works, then the API call times out, the output comes back empty, or it breaks on mobile. That is what I fix.
I debug and finish AI apps in React Native, Next.js and Python, including projects that started in Lovable, Bolt.new, Cursor or Replit and stalled halfway.
What I fix:
- Failing API calls, rate limits and broken streaming
- Prompts that return empty or inconsistent output
- Slow responses and wasted token cost
- Exposed keys, broken auth and builds that will not deploy
- Features that were started and never finished
My process:
- I read the code and reproduce the bug
- You get a report: cause, priority and effort
- I fix, test and deploy
- Handover notes so it stays fixed
You keep the source code and your own API keys. Send me a message with your repo and what is broken, and I will tell you honestly what it needs.
Get to know Sem Hiel
Sem Hiel
AI app developer I build them, and I fix the ones that almost work
- FromNetherlands
- Member sinceMar 2020
- Avg. response time1 hour
- Last delivery1 week
Languages
English, Dutch
Hi, I'm Sem, a full-stack and mobile developer based in the Netherlands with 8+ years of programming experience. Native Dutch speaker, fluent English, working in European hours (CET).
I build and fix websites and apps: WordPress, Wix and Shopify, plus custom builds in Swift, SwiftUI, React Native, Next.js and Python. AI integrations (OpenAI, Claude, ElevenLabs), Supabase, Firebase, APIs and scalable backends.
New site, broken site, or an MVP that needs finishing: send me a message and I'll tell you straight what it takes.
My Portfolio
Other AI Development Services I Offer
FAQ
What do you need from me to start?
Access to the repo or project, a short description of what is going wrong, and the steps to reproduce it. If the app is live, a link helps too. You do not need to send me your API keys.
My app was built with Lovable, Bolt or Cursor. Can you still work on it?
Yes, that is a large part of what I do. AI generated projects usually work until the first real user hits them. I clean up the structure, fix what breaks, and hand it back as code you can keep building on.
What if the problem turns out to be bigger than the package?
I tell you before I start. You get the audit and an honest estimate of what the rest would take, and you decide whether to continue. I would rather scope it correctly than deliver half a fix.
Reviews
1 reviews for this Gig
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Rating Breakdown
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- Quality of delivery
- Value of delivery
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D danilodder2006
Netherlands
Incredibly fast response, very helpfull and fixed the app in no time!
1 day
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
D danilodder2006
Netherlands
Incredibly fast response, very helpfull and fixed the app in no time!
1 day
Duration
Helpful?
