UI/UX Designer · Poland

Mikołaj
Kopciowski

Product designer and UX/UI with 8+ years of experience designing digital products across web and mobile. I specialize in creating intuitive interfaces, scalable design systems and brand-driven experiences, combining user research with AI-assisted design workflows.

LinkedIn Behance
8+ Years UX/UI
3+ Years AI Workflows
8+ Years HTML/CSS
50+ Brandings

Skills &
Expertise

User Research
Planning and conducting user interviews, surveys and usability tests to uncover real needs and translate findings into measurable product improvements.
Design Execution
High-fidelity UI design, interaction patterns and interactive prototypes — shipping production-ready assets and clear handoffs for engineering.
AI & Generative Design
Applying generative AI to design: prompt engineering, AI-assisted prototyping, and tooling (ChatGPT, Claude, Gemini/Nano-Banana, Cursor AI) to speed ideation and produce deliverables.
Branding
Designing brand identity systems, brand books, logos and visual language for digital products — building cohesive experiences from mark to interface.

Tools

Expertise
Figma ChatGPT Gemini (Nano Banana)
Additional
Cursor AI Claude Higgsfield Sketch Photoshop Illustrator Adobe XD

Hard Skills

Expertise
UX Research Product Thinking Accessibility Prompt Engineering Design Systems
Additional
Prototyping Vibe Coding AI-assisted Design Workflows Interaction Design Wireframing

Soft Skills

Expertise
Creativity Communication Open-mindedness Teamwork User-centered mindset
Additional
Analytical skills Collaboration Adaptability Project ownership Attention to detail Critical thinking

Selected
Projects

A curated selection of product design work spanning SaaS platforms, mobile applications, design systems and digital experiences.

The goal was to create a crypto wallet design that matches the quality and clarity of world-class banking apps, without losing the character of the Web3 space. The project blends clean UX with polished UI, using real-world materials like aerospace-grade aluminum as the foundation for the main screen, subtly reflecting Bitcoin's signature colors. It's meant to look professional, trustworthy and modern.

Stack Figma Mobile Prototyping
View on Behance

The main challenge was to design an app that feels familiar by using established user patterns, while also introducing new elements that make it stand out. One of the key innovations is a scroll-based browsing experience, inspired by the way people swipe through TikTok or Instagram content. Instead of videos, users explore individual lunch dishes in the same intuitive, swipe-driven flow — making discovering lunch options more engaging, effortless and aligned with modern digital habits.

Stack Figma Branding Mobile Web Dev
View on Behance

I decided to undertake this project after my bank changed the dashboard to one that doesn't provide any information at all (we can only check our account balance). The goal was to create a dashboard that gives us all the important information we need — so we can close the bank's website after a second.

Stack Figma Desktop Design System Data Visualization Fintech
View on Behance

During the redesign of the Cartier website, based on materials from cartier.com and analytical data, my main goal was to refresh the site with a focus on younger users — according to data, up to 50% of users are under 35. I aimed to enhance the clarity of the website and increase the exposure of individual items on the page.

Stack Figma Web Design Desktop Prototyping
View on Behance

The main goal was to design a simple and user-friendly food delivery app that uses a different algorithm — likes instead of restaurant ratings — for suggesting restaurants. All content was generated entirely by AI (text by ChatGPT, images by DALL-E). I also chose a less common color for this type of app: Debian Red.

Stack Figma Mobile Prototyping Generative AI
View on Behance

Experience
& Education

Base.com (formerly BaseLinker) September 2023 — Present

Product Designer · Fully Remote

  • Led the design of 30+ end-to-end SaaS modules for desktop & mobile (eCommerce, payments, analytics).
  • Built a Figma design system with 1300+ components, serving multiple product teams.
  • Created A/B tests and used Hotjar to analyze user behavior and validate design decisions.
  • Designed mobile apps for warehouse employees with full WCAG accessibility compliance.

Technologies: Figma, Photoshop, Illustrator, ChatGPT, Claude AI, Gemini (Nano Banana), Hotjar, ClickUp, Make/n8n, Cursor AI.

Gromar July 2022 — July 2023

UI Designer · Poland

  • Developing and implementing a completely new Design System for an SaaS Education Platform (WCAG 2.1 compliant, over 500 components and states).
  • Designed mobile and tablet application for WSiP, Poland's largest educational publisher, adapting complex desktop flows into intuitive mobile experiences.
  • Creating usability validation (A/B tests with Maze, guerrilla testing with employees, Figma prototypes), directly informing design iterations.
  • Delivered wireframes, prototypes, and high-fidelity UI mockups to align stakeholders and streamline decision-making.
  • Presented design strategies and rationale to senior management and clients, ensuring buy-in and clarity in decision processes.
  • Planning and developing a color palette for education portals for companies like Poczta Polska, Bank Ochrony Środowiska, etc.

Technologies: Figma, Photoshop, Illustrator, Zeplin, Maze, ChatGPT, Dall-E.

Artleit Design Agency March 2021 — July 2023

Product Designer / Owner · Poland

  • Delivered 100+ custom websites in 2.5 years, combining modern UI/UX practices with responsive layouts to boost usability and client conversion.
  • Created end-to-end design assets (wireframes, interactive prototypes, custom graphics & branding), ensuring a cohesive and distinctive visual identity for clients.
  • Supported business growth by implementing SEO optimization and digital marketing strategies, while independently managing project budgets, timelines, and client relations.

Technologies: Figma, Photoshop, Illustrator, Bootstrap, Tailwind, React, HTML, CSS, ChatGPT, Dall-E, Midjourney.

Freelancer Designer & Developer February 2017 — March 2021

Freelancer · Poland

  • Designed and developed a web platform for SBM Label, enabling seamless transfer of instrumentals between artists and producers.
  • Created custom visual assets and branding elements to strengthen client identity and recognition.
  • Delivered modern UI mockups and prototypes, improving clarity of requirements and accelerating development.

Technologies: Figma, Adobe XD, Photoshop, Illustrator, Bootstrap, React, Node JS, SQL.

Maria Curie-Skłodowska University October 2019 — July 2022

Bachelor of Science in Computer Science · Lublin, Poland

Bachelor's degree in Computer Science. Thesis focused on the application of UX design principles in modern web systems.