Who will build your project
You talk directly to the project lead who owns the outcome — no account manager relaying your words to the people doing the work.
What LIONEX AI First Agency is
LIONEX AI First Agency is a Ukrainian agency for website and online store development and technical SEO.
Working since 2015; the contractor is a registered sole proprietor, Vladyslav Chystiakov. Focus: online stores, mostly on OpenCart; websites and web applications on Next.js; technical SEO and integrations with Nova Poshta, payment and accounting systems. Clients in Ukraine and Europe, work is remote.
About the name
Several unrelated companies in different countries and industries use the name «Lionex». We are the one at lionex.com.ua; the full name is LIONEX AI First Agency. We have no connection to cryptocurrency exchange services or to other companies with a similar name.
Common questions
The things people ask most often — before the first conversation.
What is LIONEX AI First Agency?
A Ukrainian agency for website and online store development and technical SEO, at lionex.com.ua. The full name is LIONEX AI First Agency. Commercial development since 2015; the contractor is a registered sole proprietor, Vladyslav Chystiakov. We work remotely with clients in Ukraine and Europe.
Is LIONEX AI First Agency related to other companies called Lionex?
No. The name is used by several unrelated companies in different countries and industries, including cryptocurrency exchange services. We have no connection to them: our only website is lionex.com.ua, and the contractor is a sole proprietor registered in Ukraine.
Who does the work?
Vladyslav Chystiakov. Your task goes straight into work — no account managers, no passing it through third parties. We reply within two hours. A project does not move to another contractor halfway through.
How much does development cost?
There is no public price list, and that is deliberate: the scope of nominally identical work differs several times over between clients, so a «from» figure would mislead. First a free review of the task within 1–3 business days, then an estimate broken down by stage, then a contract with a fixed amount. The base currency is the euro; hryvnia at the NBU rate on the invoice date.
How is the work formalised?
A written contract for every project: scope, deadlines, amount, acceptance procedure. The contractor is a registered sole proprietor; payment goes to a bank account with closing documents. A 30-calendar-day warranty from the date the acceptance act is signed. Property rights to the code, design and materials pass to the client after full payment. Domain, hosting, repository and analytics are registered in the client's name.

Vladyslav Chystiakov
In development since 2015. Your task goes straight into the work — no account managers, no retelling through third parties: what you explained and what ends up in the code are the same thing. The project is not handed over to a different contractor midway, and the reply comes within two hours rather than the next day.
LinkedIn profile- years in development
- 11+
- projects in the portfolio
- 53
- online stores
- 33
- reviews on Kabanchik
- 144
What we stand for
- rules
- 04
We say "no" when we're not sure
If the task isn't ours or the deadline is unrealistic, we tell you upfront — not "we'll figure it out as we go".
You get access to everything
Hosting, domain, repository and analytics are registered to you. Want to leave — you take the project, no negotiations.
We don't promise rankings or ROI upfront
We promise speed, a deadline, and code that any other team can pick up.
We show work that actually works
Every case in the portfolio links to a live site you can open right now.
How we work
- stages
- 04
Audit & brief
We measure the current site: catalog size, speed, sitemap health, analytics.
Structure & design
Category tree, filter facets, mockups for home, category, product and checkout.
Build & launch
Markup, catalog, payments and shipping, integrations, analytics, an end-to-end order run.
Growth
Post-launch measurements, data-driven fixes, ads. By priority — not "everything at once".
Ready to start?
Send a site URL or a task description — we'll come back with numbers on scope, timeline and stages. Free, no obligation.
- Reply within 2 hours
- No obligation
- We work under contract