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UX Case Studies

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Hi! I’m Jacek, a research-driven product designer based in Rzeszów, PL.

I design web and mobile apps. I've worked with startups and scaleups, including Eneba.com & G2A.com — the world’s leading gaming marketplaces.

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Resume

Design Experience

25y

Research Exp.

7y+

Freelance Projects

200+

Mentoring Sessions

100+

Design Experience

25y

Research Exp.

7y+

Freelance Projects

200+

Mentoring Sessions

100+

Latest works

Check out my latest works od check all Case Studies

Latest works

Pergato.com

Nov. 2024

Pergato's Branding: From Naming to Brandbook

Process of logo design—from naming and concept creation to finalizing the brandbook and supporting trademark registration.

Brand book with visual language and tone of voice guidelines

Published an online branding asset package

Released App Store and Google Play materials in 3 languages

Pergato's Branding: From Naming to Brandbook

Process of logo design—from naming and concept creation to finalizing the brandbook and supporting trademark registration.

Brand book with visual language and tone of voice guidelines

Published an online branding asset package

Released App Store and Google Play materials in 3 languages

Eneba.com

Mar - Apr. 2019

Marketplace Checkout Optimization & Redesign

A UX research-driven approach to improving the eCommerce checkout experience—identifying friction points, implementing quick fixes, and leading the complete redesign.

17 identified issues for optimization

NPS increased from 64 to 69-75

28% increased CR on mobile devices

~10% decreased drop-off rate

Marketplace Checkout Optimization & Redesign

A UX research-driven approach to improving the eCommerce checkout experience—identifying friction points, implementing quick fixes, and leading the complete redesign.

17 identified issues for optimization

NPS increased from 64 to 69-75

28% increased CR on mobile devices

~10% decreased drop-off rate

Eneba.com

Jul - Sep. 2021

Eneba Marketplace Mobile App MVP

Design high-fidelity, ready-to-develop mobile app interface of gaming  e-commerce and classified with games and gaming gear.

+129% mobile CR growth, reaching 3.5%

~30% reduced avg. offer creation time

Boosted sales in the "Gift Cards" category

Increased mobile user registrations

Eneba Marketplace Mobile App MVP

Design high-fidelity, ready-to-develop mobile app interface of gaming  e-commerce and classified with games and gaming gear.

+129% mobile CR growth, reaching 3.5%

~30% reduced avg. offer creation time

Boosted sales in the "Gift Cards" category

Increased mobile user registrations

Eneba.com

Apr. 2023

Discovery & Search Initiatives: Prioritizing Impactful Strategies

Identifying synergies between digital and physical products through research and effort-impact analysis to select the most promising strategies.

13 initiatives formulated, reviewed and evaluated

4 high-impact, low-effort initiatives led to successful A/B experiments

Discovery & Search Initiatives: Prioritizing Impactful Strategies

Identifying synergies between digital and physical products through research and effort-impact analysis to select the most promising strategies.

13 initiatives formulated, reviewed and evaluated

4 high-impact, low-effort initiatives led to successful A/B experiments

Get in touch.

Feel free to reach out for collaborations or just follow me ☺️