Mariia

Mariia Poshyvak
Product Designer
UX/UI Designer
Product Designer with 3.5+ years of experience designing web and mobile products.
Focused on translating user insights and product hypotheses into measurable product improvements.
Experienced in user research, experimentation, and design systems. Recently deepened product thinking through the Product Design program at Projector Institute.
Experience
Contacts
Warsaw, Poland
Senior Design Mentor
MateAcademy (part-time)
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December 2022
Present
mariia.poshyvak@gmail.
Guided students through complex design concepts, portfolio
co
building, and interview preparation via 1:1 calls and detailed
LinkedI
feedback

Reviewed assignments, provided detailed critiques, and Behanc

supported critical thinking development
Telegra

Handled mentor onboarding, answered technical queries,
and offered guidance on challenging cases

Assisted in scheduling, communications, and maintaining a
productive mentor-student environment

Conducted technical interviews and evaluated test tasks
Skills
during mentor recruitmen
Competitor analysis
User researches
UX/UI Designer
Monoface
Job stories & User stories
September 2022
February 2026
Designed end-to-end experiences for both
CJM
web and mobile
User Personas
platforms

W orked on Mavii, an AI-powered search engine, focusing on
Product hypotheses
intuitive UX and responsive UI for desktop and mobile apps

Information arAhitecture
Led design for Hiro, a product developed in direct

collaboration with Mozilla, with emphasis on accessibility,
User flow
performance, and modern design standards

Prototyping & Wireframes
Designed visually impactful landing pages, marketing
Usability testing
visuals, and UI assets with a strong focus on aesthetics and
branding consistency

Design system
Conducted stakeholder interviews, synthesized research
insights, and translated them into clear user flows and
wireframes

Built and maintained scalable design systems to ensure
Tools
visual and functional consistency

Delivered high-fidelity prototypes and collaborated closely
with developers to ensure smooth implementation

Figma
Iterated on designs based on usability testing, stakeholder
Notion
feedback, and real user data

Maze
Analyzed user behavior and feedback to identify
opportunities for improving product experience and
Miro
engagement
Jira
education
COURSES
Bachelor in Marketing |
Product Design
Projector
Ivan Franko National University of Lviv
UX/UI Design Full Course
Mate academy