Hi! I’m Olesia K.
6 years designing complex B2B and B2C systems across fintech, e-commerce, and EdTech — for tens of thousands of users across European, African, and emerging markets. I work end-to-end: research, system design, UI, and design QA in production.
About me
Senior Product Designer with 6 years building B2B and B2C products across fintech, e-commerce, and EdTech. I work end-to-end: discovery, research, information architecture, design systems, high-fidelity UI, and design QA on production.
Recent impact:
  • Led redesign of a B2B broker platform serving 30,000+ active agents — cut key transaction time from 30 to 5 minutes
  • Built an atomic design system from scratch — reduced design review issues from 40+ to ~5 per new flow, brought consistency across design and code, and accelerated delivery of new flows
  • Designed multi-role architecture for systems with up to 5 user roles in one product (managers, agents, buyers, operators, admins)
  • Run regular qualitative and quantitative research to validate every major design decision
How I work: I run discovery interviews to frame the problem, validate hypotheses through qualitative and quantitative research, design systems and flows that scale, and stay close to engineering through grooming, handoff, and design QA before release. Comfortable presenting to clients and stakeholders, advocating for design decisions across cross-functional teams.
Industries: Fintech · E-commerce · EdTech · Enterprise SaaS
Skills: Design Systems · User Research · Information Architecture · Multi-role UX · Mobile & Web · Figma · Design QA
Markets: Europe · Africa · Central Asia · Russia
6
years as a product designer
30K +
users in shipped products
3
Industries: Fintech · E‑commerce · EdTech
My works
End-to-end design of a B2B payments app
How I re-designed and shipped a European fintech app for international IBAN transfers — mobile and web, 1,000+ screens, in 8 weeks.
Redesign app and design system for fintech
How I designed a design system from scratch and a new UX, reducing credit agent training time from weeks to minutes
Designing an LMS from scratch
How UX design reduced student data entry time by 70% and prevented financial loss
Redesign of the educational app
How a UX audit and a new design system solved the low conversion problem in an educational app
Made on
Tilda