For founders who built with Lovable, Bolt, v0 or Replit
Your app works in the demo. I make it safe for real users.
I'm Fahim, a Next.js developer. I find and fix what AI builders leave behind: open database rules, weak login, exposed keys and payments nobody checks. Audit in 3 days, fixes in 2 weeks, at a fixed price, in code you own.
3 free checks a week. Read-only access, nothing in your app changes.
Demo: a database rule is added so a signed-in user can only see their own orders. Before the fix, the orders page shows every customer's orders. After it, only the user's own.
- Fixed price before work starts
- Code and accounts in your name
- A working demo every Friday
- Calls during US working hours
Hi, I'm Fahim. You talk to me, and I write the code.
I build in Next.js and TypeScript from Dhaka, and I'm on calls during the US working day. Before this I built, and still run, a live e-commerce store that books its own couriers across Bangladesh.
(01)Sound familiar?
AI got you to a working app. These are the parts it usually skips.
- 01
“Any signed-in user can see everyone's data.”
The fixDatabase rules written and tested for every table, so each user only reaches their own records.
- 02
“Payments work. Until someone fakes one.”
The fixEvery payment event is verified with the provider's signature, and duplicates are rejected before they touch your orders.
- 03
“An investor's developer is about to read the code.”
The fixA clean repository in your GitHub, secrets moved out of the browser, and a handover document a new developer can follow.
(02)What I do
Three ways to get your app production-ready
Every job starts with the audit. Its $500 comes off the sprint or launch price if you book within 30 days.
Audit
$500
3 business days
Find out exactly what's wrong before you spend more.
I go through your app with read-only access and write up every risk I find, ranked by how much damage it could do.
- Login, roles and database rules
- Secrets, API routes and payment webhooks
- Backups, error logging and page speed
- A fixed price to fix all of it
Hardening Sprint
$2,500
2 weeks
Fix what the audit found, and prove it's fixed.
I close every critical and high-risk finding in your codebase, then retest each one and give you the results in writing.
- Database rules written and tested
- Login and permissions corrected
- Keys moved out of the browser and rotated
- Payment events verified
- Error alerts and daily backups switched on
30 days of free fixes on my work.
Production Launch
$4,500
3–4 weeks
For apps about to launch, raise money or take serious payments.
Everything in the sprint, plus the work that makes the app maintainable by any developer, not just the one who fixed it.
- Code moved to your own GitHub, Vercel and database accounts
- Tests on sign-up, login and checkout
- Speed work on your 5 key pages
- A staging site to test changes safely
- 2 weeks of launch support
Building something new instead? I also build Next.js stores and web apps. Other builds →
(03)See what an audit finds
See what an audit actually finds
I built a small app in Lovable in one afternoon, with login, a database and a test checkout. Then I audited it the same way I audit client apps. This is the real report, unedited.
Studio test · built and audited by Zordev
Being written up
The sample report is being written up from a real audit of my test app. Until it's published, a free 3-risk check shows you the same kind of findings on your own app.
(04)Selected work
Real projects, honestly labelled
Client work, studio tests and demos, each marked for what it is.
A store that books its own couriers
A live import store shipping across Bangladesh, with courier booking automated for repeat customers.
Next.js · MongoDB · Live since 2026
(05)How a job runs
You see progress every Friday, not just at the end
Step 01
You find out if there's a real problem before you pay.
A free 3-risk check or a 20-minute call. If your app is fine, I'll say so.
- You get
- The 3 biggest risks, recorded on video.
(06)How I use AI
Yes, I use AI tools. I still read every line.
I use Claude, Claude Code and ChatGPT to move faster on routine code. That's part of how the prices stay fixed and the timelines short.
Every change that reaches your app has been read, tested and understood by me. AI wrote some of the problems I fix. It doesn't get the final say on the fixes.
Your code and data never go into any tool that trains on them.
(07)After launch
Keep it safe after launch
Apps need updates. Packages get security fixes, and new features change your database. Pick the level of cover you need.
Essentials
$149/mo
Add to my project- Monthly security and package updates
- Uptime and error monitoring
- A monthly backup restore test
- 1 hour of fixes
Replies within 2 business days
App Care
$299/mo
Add to my project- Everything in Essentials
- 4 hours of development
- A security re-check whenever your database or login changes
- A monthly one-page health report
Replies within 1 business day; urgent issues the same day in US hours
Product Partner
$1,500/mo
Add to my project- 40 hours a month (about 10 a week)
- Weekly security and package updates
- A weekly planning call
- A Friday demo
Same-day replies in US hours
3-month minimum on Essentials and App Care, then month to month with 30 days' notice. Unused hours don't roll over. Hosting is billed to you directly, in your name.
(08)What happens next
What happens after you click
- 1
You book a 20-minute call or ask for a free check.
I reply within one business day.
- 2
We talk, or I send your 3 risks on video.
You get an honest view, even if the answer is "you're fine".
- 3
You get a written scope and a fixed price.
Nothing starts until you approve it.
- 4
Work starts within 5 business days.
First Friday demo the week after.
(09)FAQ
Questions founders ask before they book
Anything else? Ask on the call or email [email protected].
Login and user roles, database access rules, secrets and API keys, server routes, payment webhooks, input validation, known vulnerable packages, error logging, backups and page speed. You get a written report with every finding ranked, plus a fixed price to fix them.
Yes. Most of these tools produce React code, often with Supabase or a similar database behind it. That's the stack I work in every day. If yours is different, I'll tell you on the first call.
No. Both use read-only access. Nothing changes until you approve a fix and its price.
Not necessarily. The audit tells you whether to keep building there or move to a normal codebase, and what to avoid touching if you stay.
The audit is $500, credited in full if you book fixes within 30 days. A hardening sprint is $2,500 and a production launch is $4,500, for apps within the scope on the pricing page. Larger apps get a fixed quote after the audit.
You do. The code lives in your GitHub, and the hosting and database accounts are in your name. I hand everything over in full.
I take calls from 10 PM to 4 AM Dhaka time. That's the working day across the US and the evening in the UK and EU. Between calls you get written updates, and a working demo every Friday.
In USD by invoice through Payoneer: bank transfer (ACH in the US), card or international wire. Audits are paid upfront. Sprints are 50% to start and 50% on delivery. Launches are paid in three milestones.
Then the report says so, and you don't pay for it: if the audit finds no critical or high-risk issues, the audit is free.
Yes, under your brand and NDA, at $40 an hour in 20-hour blocks or a fixed price per job. The agencies page has the details.
Next step
Find out what breaks before your users do
A free 3-risk check takes me 90 minutes and costs you nothing. If your app is fine, I'll tell you. I reply within one business day. Live calls 10 PM to 4 AM Dhaka time, which is the US working day.