You will get a technical due diligence audit before you buy a SaaS or AI-built app

David Q.Status: Offline
David Q.

Let a pro handle the details

Buy Assessments & Penetration Testing services from David, priced and ready to go.
David Q.Status: Offline
David Q.

Let a pro handle the details

Buy Assessments & Penetration Testing services from David, priced and ready to go.

Project details

You're about to pay real money for a SaaS or an AI-built app. The demo looks great. The question is what you'll inherit: can users read each other's data? Are there live keys sitting in the code? Do the Stripe webhooks actually work, or does revenue silently break? Can YOU deploy and maintain it after the seller walks away?

I answer those questions before you sign. What you get: a scan of the repository for exposed secrets, missing Supabase RLS, broken webhook handling and deploy problems — then manual verification of every finding that matters, because automated results are never reported as confirmed without reproduction. On the Standard tier I add a two-account isolation test on a staging environment, recorded on video. On the Advanced tier: code recoverability assessment (is this maintainable or a rewrite?), a fix plan with effort estimates, and 7 days of follow-up questions.

Hard rules: I never ask for production credentials or customer data. Everything runs on the repo and test environments. The report is written so you can take it to the seller and negotiate.

Technical review only — it complements, not replaces, legal and financial due diligence.
Cybersecurity Assessment Type
Vulnerability Assessment
Cybersecurity Expertise
Data Protection, Audit, Risk Assessment
Technology Type
Database, SaaS, Web Application
What's included
Service Tiers Starter
$149
Standard
$349
Advanced
$690
Delivery Time 1 day 3 days 5 days
Application Audit
Project Plan
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Cost Estimation
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David Q.Status: Offline

About David

David Q.Status: Offline
Stripe & Supabase Expert - Webhooks, Subscriptions, Fast Fixes
Carino, Spain - 6:39 pm local time
I fix broken code fast. Most small fixes and scripts delivered same day, often within hours - with a screen recording proving it works before you pay.

What I handle:
- Bug fixes: Flutter/Dart apps, Python scripts, JS/TS, REST APIs
- Backends: Cloudflare Workers, D1, Supabase, Stripe integrations
- Automation: web scrapers, data processing, API integrations, bots
- Trading tech: MQL4/MQL5 Expert Advisors and indicators (MT4/MT5)

How I work:
1. You describe the problem (repo access or code snippet helps)
2. I confirm scope and a fixed price - no hourly meters running
3. You get the fix + a short video showing it working
4. You approve when satisfied. That's it.

Working languages: English, Spanish, Galician. I'm also happy to handle all written communication in German, French, Italian, Portuguese or most other European languages - whatever is most comfortable for you.

I keep scope tight and communication fast (responses within the hour, European timezone). If I can't fix it, I tell you upfront - no wasted time.

Steps for completing your project

After purchasing the project, send requirements so David can start the project.

Delivery time starts when David receives requirements from you.

David works on your project following the steps below.

Revisions may occur after the delivery date.

Scan and review

I scan the repo (secrets, RLS, Stripe webhooks, deploy config), then manually verify every finding that matters. Automated results are never reported as confirmed without reproduction.

Report and decide

You get a prioritized report with evidence, business impact per risk, a buyer question list for the seller, and (Advanced tier) a fix plan with effort estimates + 7 days of follow-up questions.

Review the work, release payment, and leave feedback to David.