Yaroslav Zhyvylo

I build the custom tool your business is missing. With AI, in weeks.

Off-the-shelf software almost fits. Spreadsheets hold the rest together, and someone on your team types the same order into three places. I look at how your business actually runs, work out what's worth building, and build it myself - at a fixed price, usually in four to six weeks.

Book a 30-minute call Free, 30 minutes, no pitch. If it isn't worth building, I'll tell you on the call.
6X revenue growth
76% lower hosting bill
$8.5K in month one from a pilot

What businesses have me build

A few examples. If your team does it by hand every week, it can probably be built.

How it works, and what it costs

  1. A call, 30 minutes, free

    You tell me what's slowing the business down. I tell you honestly whether software is the answer and whether I'm the right person to build it.

  2. The review, five working days

    $2,000fixed price, credited against the build

    I look at your numbers, your tools and how the work actually gets done. You get a written report you keep, whether or not we work together afterwards.

    • What is costing you time or money, with a yearly figure
    • What is worth building, and what you should not spend money on
    • A fixed price and a timeline for the build, so there is no guesswork
    See a real review, anonymised
  3. The build, usually four to six weeks

    $8,000-30,000fixed price, agreed in the review

    I build the tool myself, end to end, and you see it working along the way. Paid in stages as the work lands, not all up front. If you already know exactly what you need, the review turns it into a plan and a price.

  4. Keeping it running

    Once it's live, I host it, watch it, fix it and make small changes for a fixed monthly fee. You don't have anything to manage.

Other work - solution architecture, technical due diligence, or a second pair of eyes on software you already have: $150 / hour, scoped after a call.

What that has looked like

Parqlet, residential parking sharing, US · built through Data Science UA

They needed a whole product live, fast, while the scope was still moving.

So I built the web side end to end: the landing page, admin and super-admin dashboards, the backend, and the infrastructure behind it - CI/CD, deployment on Google Cloud, Cloudflare and transactional email. I also made targeted fixes in the mobile app.

~2 monthsto production
5.0early user rating
Web + backend + infraone engineer

Read the full case

DTC supplements brand

They needed to know which products actually made money.

So I built the tracking, turned the catalogue into three-month courses based on what the data showed, and added a subscription so customers reorder without being sold to again.

$12K/yr → $6K/morevenue, 6X
360%return on ad spend
52%contribution after ads

Read the full case

Fashion rental marketplace

They needed to sell partner products alongside rentals, without a team to write the listings.

So I built a system that reads every partner catalogue, writes each product description with AI and matches it to the right customer. We piloted it on one category out of twelve.

5%pilot conversion
$8,500first month, one category
$170per converting customer

Read the full case

E-commerce platform

They needed a $2,500 monthly hosting bill to stop growing.

Everyone was fixing the obvious causes. The real one was in the architecture. I found it, fixed it, hardened the site after a live attack, and made it measurably faster.

$2,500 → $600per month, -76%
~$22,800saved per year
70 → 95page speed score

Read the full case

Is this for you?

This is for you if

  • you run a business with real customers and a team - a store, a service business, a firm
  • the same manual work eats hours every week, or money leaks somewhere you can't point at
  • you've tried off-the-shelf tools and none of them quite fit how you work

This is not for you if

  • you need IT support - email accounts, office Wi-Fi, laptops
  • you want a startup built from an idea - that's a different offer: AI MVP development
  • you're looking for the cheapest hourly developer

Why the review is paid

I charge for the review so my answer isn't shaped by what I'd like to build for you afterwards.

Agencies scope for free and always find a reason to sell you a big project. I'd rather be paid for an honest answer - including when the honest answer is "don't build it." If you do go ahead, the fee comes off the price of the build.

Who I am

Yaroslav Zhyvylo

Twelve years as a software engineer across e-commerce, marketplaces, fintech and manufacturing. Co-founder and sole engineer of an AI startup through Techstars Miami '22, backed by J.P. Morgan. I've built complete platforms on my own - front end, back end, infrastructure - so the person who reviews your business is the same person who builds the tool.

I build with modern AI tooling. That's how one senior engineer delivers in weeks what used to take a team months, and it's why the tools I build can read, write and answer questions in your business's own words.

Based in Ukraine. I work with businesses in the US and Europe, in English, during US mornings and the full UK working day.

Doing something by hand that software should do?

Tell me about it in 30 minutes. If it isn't worth building, I'll say so.

Book a 30-minute call or email yaro@workwithyaro.com