Berkay Sezer

I am 24 years old UI/UX Designer with a strong background in visual design and experience across sports, esports, web3, and e-commerce products. I work end-to-end on mobile and web apps — from user flows and wireframes to high-fidelity UI and scalable design systems in Figma. I'm comfortable collaborating with product and engineering teams to ship features, improve usability, and maintain a consistent design language across product and marketing surfaces.

UI/UX Designer at Beşiktaş JK (2025-07 – Present)

• Design end-to-end mobile app flows and interfaces for membership, ticketing, fan engagement and club service modules.
• Contribute to the SuperApp design system (components, typography, color, spacing) to ensure a consistent look & feel across the product.
• Collaborate with product and development teams to iterate on features based on user needs, feedback and business priorities.

UI/UX Designer at Diamandtech (2024-08 – 2025-07)

• Designed web and mobile interfaces for internal and client-facing products, from wireframes to final UI.
• Created reusable Figma components and layout systems to speed up delivery and keep visual consistency across projects.
• Worked closely with developers and stakeholders to clarify requirements, refine flows and hand off pixel-perfect design assets.

UI/UX Designer at Multiplayer (2023-08 – 2024-08)

• Designed UI for mobile games and companion apps, focusing on clear navigation, in-game readability and engaging visuals.
• Produced interface assets and layouts for live ops, events and promotions within games.
• Supported marketing campaigns with adapted in-game and app visuals that matched each game's art direction and brand.

UI/UX Designer at Mallconomy (2022-10 – 2024-01)

• Designed user flows and interfaces for web and mobile apps in the web3/metaverse ecosystem (reward & bounty-based products).
• Created dashboards, onboarding flows and interaction patterns that balanced usability with a visually rich, futuristic style.
• Prepared pitch decks and product presentation screens, aligning visual language with brand, product vision and investor expectations.

UI/UX Designer at KSO Bilişim Ltd. Şti. (2021-11 – 2022-10)

• Designed web interface elements, campaign pages and product listing layouts for a leading e-pin and digital products platform.
• Created banners, social media visuals and product card designs, ensuring visual consistency across website and marketing channels.
• Improved clarity and hierarchy in e-commerce listings, supporting marketing campaigns with conversion-focused layouts and assets.

Graphic Design in Graphic Design – Yasar University (2020 – 2023)