About
One name on every decision.
Sublom is Dmytro Chornohor — a senior product designer who scopes your product, designs it and builds it with AI agents, with automated checks on every change. No account managers, no hand-offs.
01The path
From freelance to design lead — then his own studio.
2020 — 2021
Freelance UX/UI designer
More than 100 projects for clients worldwide: websites, mobile and desktop apps, landing pages, brand identities.
2021 — 2023
UX/UI designer
Enterprise and government platforms inside a company of 3,000+, among them an Australian government education system.
2023 — 2026
Design lead
Design strategy across enterprise, startup and Web3 products; design systems shared by several products; mentoring designers.
Now
Founder
The same senior on every call — now designing the product and building it, with AI agents and checks behind him.
The founder’s record
Designing web, mobile and SaaS products
Shipped as a freelancer, before Sublom
On Upwork, every one of them 5.0
To answer a brief, on business days
02What the work follows
Five rules, on every project.
- 01
Clarity before decoration.
If people don’t understand the interface, polish won’t save it.
- 02
Systems before screens.
A good screen solves today’s problem. A good system solves tomorrow’s.
- 03
Constraints are part of the design.
Technical and business limits are inputs, not excuses.
- 04
The work isn’t done in Figma.
It is done when it works in the product, in every state.
- 05
Details matter.
Small inconsistencies add up to a big impression.
- →See them in the workEight case studies: the problem, the decisions, what shipped.
03What he does
Product, interface, systems — and what happens after Figma.
Product
UX architecture · product design · information architecture · user flows
Interface
UI design · responsive design · interaction design · prototyping
Systems
Design systems · design tokens · components · documentation
Delivery
Developer handoff · design QA · frontend collaboration
Growth
Landing pages · conversion-minded design
Technology
HTML · CSS · JavaScript · AI-assisted development
04Background
The paperwork.
- Education
- Master’s degree in Cybersecurity — V. N. Karazin Kharkiv National University, 2026
- Certifications
- UX/UI design · Frontend development (HTML, CSS, JavaScript) · Cybersecurity
- Languages
- English — advanced, fluent · Ukrainian and Russian — native
Next step
Let’s build it.
Tell us what you’re launching and when. You’ll talk to the person who builds it.
Replies within 1 business day