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English
$
USD
I will make your vibe coded app secure, fix bugs, and app store ready
Shahadat Sdt
Level 2
5.0
5.0
About this gig
Built your app with Lovable, Bolt, Cursor, Replit, v0 or Base44, and now it's buggy, slow or not safe to launch? I'll fix it and make it production ready.
I'm a software engineer with 5+ years of experience. A client who has built 12+ apps called me "the best developer I have ever worked with".
What I check and fix
- Exposed API keys and secrets
- Supabase/Firebase security rules (RLS), auth and user data
- Bugs, crashes and broken flows
- Messy code, structure and slow pages
- Payments, emails and API integrations
- App Store / Play Store readiness
What you get
- A clear report: what was wrong, how risky it was, what I fixed
- Fixes on a separate branch of your GitHub repo, tested before handover
- A retest of your main flows after the fixes
How it works
- Message me your app link and what's wrong
- I check it and confirm the right package, free
- You get the fixes, the report and a retest
Not sure which package fits? Message me first. I usually reply within an hour.
Get to know Shahadat Sdt
Shahadat Sdt
Software Engineer
Level 2
- FromBangladesh
- Member sinceJan 2021
- Avg. response time1 hour
- Last deliveryabout 22 hours
Languages
Bengali, English
Hi, I'm a passionate Software Engineer with over 5 years of experience. I am specializing in Android development, Software Testing, low-level programming and managing complex projects from start to finish. I have completed a wide range of Android projects. I have a deep understanding of building efficient, scalable, and high-performance Android applications.
My most used languages are C++, Kotlin, and Java,
My Portfolio
FAQ
Can you make my app App Store or Play Store ready?
Yes. I can help prepare the app for launch by fixing bugs, improving privacy, checking permissions, optimizing performance, and preparing release builds.
Which platforms do you work with?
Lovable, Bolt.new, Cursor, Replit, v0, Base44, Windsurf, Claude Code and Codex projects, plus hand-written React, Next.js, Vue, Node, Supabase and Firebase apps.
What access do you need?
Usually your GitHub repo (Lovable, Bolt and Replit can sync to GitHub) and a test login. For database work, temporary access to Supabase or Firebase. You can remove my access when we're done.
Will you break my live app?
No. I work on a separate branch and test every change before handover, so your live app keeps running until you review and merge.
How do I know which package I need?
Message me your app link and a short description of the problem. I'll take a look and tell you which package fits, or send a custom offer. It's free.
My app has a bigger problem. Can you still help?
Yes. Bigger rebuilds, migrations or new features go through a custom offer with a clear scope and price before I start.
Do you also test the app?
Yes. I also do QA and beta testing on Android, iPhone, Windows, macOS and Linux, and I retest your main flows after the fixes.
Reviews
2 reviews for this Gig
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| (0) | ||
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Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
B 
billmcc12
United States
Shahadat is a legend. LITERALLY. Ive built over 12 apps and worked with over 6 dev teams and he is the best developer I have ever worked with. sharp, super friendly, patient AND A GENIUS! He's both a dev and beta tester his builds are rocked solid and dont stop working suddenly like my past devs. his...
$1,000-$2,500
Price
3 weeks
Duration
S 
Seller's Response
Helpful?T tk123456789012
Germany
Shahadat delivered again, this time he recruited even more testers for my next game :D working with him truly is the best, he also cares about the result and offers genuinely good feedback on bugfixes and features, 10/10 would hire again
$50
Price
2 weeks
Duration
Helpful?
Reviews
2 reviews for this Gig
| (2) | ||
| (0) | ||
| (0) | ||
| (0) | ||
| (0) |
Rating Breakdown
- Seller communication level
- Quality of delivery
- Value of delivery
Sort By
Most relevant
B billmcc12
United States
Shahadat is a legend. LITERALLY. Ive built over 12 apps and worked with over 6 dev teams and he is the best developer I have ever worked with. sharp, super friendly, patient AND A GENIUS! He's both a dev and beta tester his builds are rocked solid and dont stop working suddenly like my past devs. his...
$1,000-$2,500
Price
3 weeks
Duration
S Seller's Response
Helpful?T tk123456789012
Germany
Shahadat delivered again, this time he recruited even more testers for my next game :D working with him truly is the best, he also cares about the result and offers genuinely good feedback on bugfixes and features, 10/10 would hire again
$50
Price
2 weeks
Duration
Helpful?
