Available to hire
Hi, I’m Kateryna Serdiuk, a UI/UX Designer focused on delivering visually refined and technically robust solutions for global SaaS, Fintech, and mobile platforms. I bridge high-level design strategy with seamless development hand-off to ensure every interface is user-centric and scalable.
I’m proficient in Figma (Advanced Components, Variables, Auto Layout), Framer development, and the Adobe Creative Suite (Illustrator and Photoshop). I enjoy turning complex problems into intuitive experiences and collaborating with cross-functional teams to ship delightful products.
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Language
English
Fluent
Czech
Advanced
Ukrainian
Fluent
Russian
Fluent
German
Intermediate
Work Experience
UX/UI Designer at Upwork
January 1, 2021 - PresentLeading end-to-end UX/UI design for a global portfolio including FinTech and SaaS, web platforms, and native mobile apps. Conducting user research, usability testing, and heuristic evaluations to define problems, map customer journeys, and validate solutions before development. Collaborating with product managers and engineers to translate business goals into scalable, user-centered designs. Building scalable design systems in Figma using Variables and Auto Layout to streamline hand-offs. Implementing motion design and micro-interactions with Lottie and Rive to enhance feedback and delight.
UX/UI Designer at CleanBee
September 1, 2023 - November 1, 2024Created and implemented a comprehensive, scalable digital design system in Figma, leveraging Auto Layout, Variables, and Components to standardize the visual language across platforms. Coordinated design-to-development hand-off with Product Managers and Front-End Engineers to ensure high-quality UX/UI implementation. Analyzed data and redesigned core user flows and critical interfaces using a data-driven mindset and iterative A/B testing to identify friction points and solve usability issues.
UX Designer at Amazon
July 1, 2021 - January 1, 2022Designed solutions for online platforms to integrate complex data and improve visibility of logistics and transportation processes. Contributed to the UX design of a large-scale internal enterprise platform, operating under strict corporate guidelines and compliance requirements. Transformed dense data into intuitive, user-friendly dashboards; prepared design specifications and conducted hand-off to developers for pixel-perfect implementation.
Education
Master of Arts at University of Europe for Applied Sciences
March 1, 2023 - July 1, 2024Bachelor of Business Administration at Alfred Nobel University
September 1, 2017 - July 1, 2021Qualifications
UX/UI Professional
October 1, 2021 - March 7, 2026UX Designer (Micro1)
May 1, 2024 - March 7, 2026Industry Experience
Software & Internet, Financial Services, Professional Services, Transportation & Logistics
Experience Level
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Expert
Intermediate
Intermediate
Hire a UX Designer
We have the best ux designer experts on Twine. Hire a ux designer in Barcelona today.