Your startup’s CTO or developer left? I can take over the project.

Hi, I’m Sergei, a senior PHP engineer with 25 years in development. I have built complex projects from zero many times. I will learn your code and support it.

Describe your problem See pricing
team chat — today

Our only developer left. Nobody knows how the app works.

The product still has to run.

  • Reply within 3 hours (CET business hours)
  • No fix — no fee
  • No hiring: you pay only when there is work

Sound familiar?

“Our only developer left, and nobody knows how the code works.”

“AI built our MVP. Now it breaks and we can’t fix it.”

“A new contractor says we have to rewrite everything.”

How it works

  1. 1You describe the problemIn plain words. You don’t need to know the technical cause.
  2. 2I look and name the priceYou know the cost before any work starts.
  3. 3I fix itOnly what the problem needs. No rewrite pushed on you.
  4. 4You get the invoiceAfter the result, once you’ve seen it work.

Why startups work with me

No hiring right nowYou get a senior engineer without a long hiring process.
No salaryYou pay only when there is work.
No rewrite pushed on youI repair what you built. Your money goes to the product.
Everything is in your accountsCode, repository, hosting, domain. I work with access you grant and can revoke.
The knowledge stays with youWhat I learn about your system gets written down, so your next developer can start faster.
No fix — no feeIf I can’t solve the problem, you owe nothing.

Pricing

Fixed price

from €100

I look at the problem and name the price before any work starts. It doesn’t change if the work takes me longer. If I can’t fix it, you don’t pay.

Scope unclear? Then I work by the hour at €45/h and agree the hours with you first.

I invoice after the result through my own company: SEPA or SWIFT, in EUR, the same way as any EU contractor. No card payments. No long-term contract.

Describe your problem

What I work with

  • Custom and legacy PHP
  • Laravel
  • Symfony
  • Yii
  • Complex WordPress / WooCommerce

Not a fit

  • Content edits
  • Page builders
  • Turnkey websites and new builds
  • Design
  • SEO and marketing

A typical job

Public search slowed down the main database

Problem. Public property search used the main MySQL database, so the search and the internal CRM were slow.

What I did. I moved the search to a separate MongoDB database and closed the main database to public traffic.

Result. The main database has much less load. The internal CRM is not slow anymore, and public search works fast.

FAQ

Do I need to hire a developer now?

Not for this. I fix the problem first. You can hire later, when you are ready.

Can you fix an MVP built with AI?

Yes, if it’s PHP. I’ll read the code, tell you what state it’s in, and fix what’s broken.

Do I need to rewrite my product?

Usually not. I fix what you have. If a part really should be replaced, I’ll tell you why, and the decision stays yours.

Can you work with us long-term?

Yes. After the first fix, I can stay on part-time as your PHP engineer. We’ll agree the terms when we get there.

Who owns the code?

You do, including everything I write for you.

How do I pay?

By invoice after the result. I invoice through my own company: SEPA or SWIFT, in EUR. I don’t take cards.

What if the problem can’t be solved?

You don’t pay. You still get what I found.

Describe your problem

I’ll reply within 3 hours during CET business hours.

Prefer email? sergei@onviser.com