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YSAYuri Subach

Independent technical and AI due diligence for software acquisitions.

Before you close, find out what actually works, what will scale, what is going to break, and what it costs to fix. Delivered fast enough to fit a live deal.

For private equity, growth investors, independent sponsors and search-fund buyers.

An outside read on whether the software is an asset or a liability.

I built the systems I assess.

Twenty years as a software architect and engineering leader, scaling production systems and delivering inside regulated environments. That includes seeing an acquisition from the target’s side of the table.

The same person, start to finish.

I take the first call, read the code, write the report and walk you through it. There is no junior team behind me.

AI-native depth.

Most technical reviewers stop once the feature works. I keep going: where the training data came from and whether anyone had the right to use it, whether the model holds up outside the demo, how the team versions and monitors what it ships, and how much of the product is someone else’s API.

Fast enough for a live deal.

A working read in days. Tell me your closing date and I work back from it.

Client reference

On source code due diligence engagements, handled under escrow, for a specialist provider:

“Yuri worked with us on a number of source code due diligence engagements, where handling highly sensitive source code and technical assets with absolute precision was fundamental to the role. Yuri provided excellent support and has the skills required to assess the technical side of an acquisition.”

Evan Lever, Founder and CEO, The Escrow Company

The code base can look fine and still be a liability.

The software design may live in one engineer’s head, with nothing written down, so the value walks out with them. The architecture may hold today and collapse at the scale your model assumes. The AI may be a thin wrapper over someone else’s API. None of that shows up in a demo, and a motivated seller has a good answer for all of it.

On a live deal you rarely have the time to find out yourself. So buyers borrow a portfolio-company CTO, stretch a generalist consultant, or take the founder’s deck at face value. None of those gives you an independent answer that holds up in front of an investment committee.

Signature question

Real AI, or an API wrapper?

It’s the first question I answer, and often the most expensive one to get wrong. Two companies can show the same demo; only one of them owns anything defensible.

How I answer it →

Who I work with

Private equity & growth investors

A technical and AI go/no-go, pricing input, and risk-flagging on a live deal.

Corporate development / M&A teams

The same independent technical read, without pulling your own engineers off the roadmap.

Search funds & independent sponsors

You are under contract, you have a date to close, and the software is the asset. What you need is someone qualified to assess it and a report you can put in front of your investors.

QoE & financial-DD firms

You sit in every deal and stop at the technical line. I become your technical arm on the engagements that need one, without touching your scope or your fees. Quoted through you or direct, whichever you prefer.

Sector-specific: healthcare software and fintech and financial software.

Twenty years building the systems I now evaluate.

I’ve architected AI document-processing pipelines, scaled a platform from one million to twenty million users, led engineering in regulated clinical environments, and been through acquisitions from the inside. So I assess a system the way someone who has had to keep one running does.

More about my background →

Common questions

Do you work with search funds and independent sponsors?
Yes — alongside private equity and growth investors, corporate development teams, and the QoE and financial due diligence firms they work with. Search funds and independent sponsors are a core client: you are under contract, you have a date to close, the software is the asset, and you need both a qualified assessment and a report you can put in front of your investors.

Have a deal in motion?

Tell me the target, what you need to know, and your timeline. I will tell you whether and how I can help, usually the same day.

Engagements are confidential and run under a mutual NDA.