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I'm Mariia Kolesnikova, a UX/UI designer focused on intuitive, research-driven interfaces for mobile and web. I create designs with proven efficiency and bring 3 years of hands-on experience working in both product teams and design agencies, which has taught me to collaborate effectively with PMs and engineers and to work independently when needed. Currently, I’m focused on growing as an individual contributor in a UX/UI designer role, and I’m comfortable working remotely or on-site in London. I’m eager to continue delivering user-centered, technically feasible interfaces and to contribute to cross-functional teams.…I'm Mariia Kolesnikova, a UX/UI designer focused on intuitive, research-driven interfaces for mobile and web. I create designs with proven efficiency and bring 3 years of hands-on experience working in both product teams and design agencies, which has taught me to collaborate effectively with PMs and engineers and to work independently when needed. Currently, I’m focused on growing as an individual contributor in a UX/UI designer role, and I’m comfortable working remotely or on-site in London. I’m eager to continue delivering user-centered, technically feasible interfaces and to contribute to cross-functional teams.

Mariia Kolesnikova

UX Designer, UI Designer, Product Designer, +2

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I'm Mariia Kolesnikova, a UX/UI designer focused on intuitive, research-driven interfaces for mobile and web. I create designs with proven efficiency and bring 3 years of hands-on experience working in both product teams and design agencies, which has taught me to collaborate effectively with PMs and engineers and to work independently when needed. Currently, I’m focused on growing as an individual contributor in a UX/UI designer role, and I’m comfortable working remotely or on-site in London. I’m eager to continue delivering user-centered, technically feasible interfaces and to contribute to cross-functional teams.…I'm Mariia Kolesnikova, a UX/UI designer focused on intuitive, research-driven interfaces for mobile and web. I create designs with proven efficiency and bring 3 years of hands-on experience working in both product teams and design agencies, which has taught me to collaborate effectively with PMs and engineers and to work independently when needed. Currently, I’m focused on growing as an individual contributor in a UX/UI designer role, and I’m comfortable working remotely or on-site in London. I’m eager to continue delivering user-centered, technically feasible interfaces and to contribute to cross-functional teams.

Available to hire

I’m Mariia Kolesnikova, a UX/UI designer focused on intuitive, research-driven interfaces for mobile and web. I create designs with proven efficiency and bring 3 years of hands-on experience working in both product teams and design agencies, which has taught me to collaborate effectively with PMs and engineers and to work independently when needed.

Currently, I’m focused on growing as an individual contributor in a UX/UI designer role, and I’m comfortable working remotely or on-site in London. I’m eager to continue delivering user-centered, technically feasible interfaces and to contribute to cross-functional teams.

Skills

Experience Level

Expert

Expert

Expert

Expert

Intermediate

Language

English

Advanced

Russian

Fluent

Work Experience

Middle Product UX/UI Designer at Flex2bet (igaming)

November 1, 2025 - Present

Designed and delivered core retention systems for the platform, including bonus mechanics, VIP progression, and tournament features. Reduced design-to-dev handoff time by 20% through systematization of components. Built a structured 4-step deposit flow, improving user journey clarity and increasing usability test success from 55% to 75%.

Junior UX/UI Designer at PixelWave (design & marketing agency)

June 1, 2025 - November 1, 2025

Completed two projects for two UK-based SaaS and e-commerce products (both NDA). Assisted in designing the main dashboard for a CRM system used by 2k+ businesses. Simplified the UI of product-cards for an e-commerce platform, increasing add-to-cart conversion rate by 12%.

Web & UX/UI Designer at Freelance & pet-projects

January 1, 2023 - December 31, 2024

Designed a full product from concept to MVP (140+ screens, iOS/Android). Conducted usability testing with 15 users; iterated flows based on feedback. Created a scalable design system, interactive prototypes, and motion UI. Projects included XR Place — Landing page for a 3D property visualization widget and Alpha Marketplace startup.

Junior UX/UI Designer at Есть дело (HR-tech startup)

July 1, 2024 - June 30, 2025

Redesigned core job search flow, achieving a usability test score of 8.6/10 for usability and 95% WCA AA compliance. Built and maintained a modular design system in Figma, reducing PM-to-design-to-dev handoff time. Collaborated with PM, 2 designers, and 4 developers.