Jakub Wojnar-Płeszka
Now booking for October 2026

Design for AI B2B SaaS & startups that stall at adoption

I design and build the flow that makes them stay, and ship it to you in code. Move your north star metric in 4 weeks.

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Proven through outcomes

Fix the flow that's losing you users

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Adoption Sprint

Perfect for founders and product heads building AI tools for professionals.
What you get:
  • 3-4 week outcome-oriented sprint
  • A flow map showing where product adoption breaks and why
  • A working prototype in code you can test, with states and edge cases
  • Source files, system, and documentation ready for your team to ship
Book an intro call
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Workflow Audit

A short engagement focused on diagnosing one workflow.
What you get:
  • 1-week sprint scoped to one workflow
  • A flow map showing where product adoption breaks and why
  • The top friction points and suggested long-term solutions
  • A next-step plan your team can execute (with or without me)
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Trusted by 25+ companies around the globe

“Jakub is not only an excellent designer, but he's also an excellent listener. He does a great job understanding the WHY behind the design. By understanding the why, he has created an incredible user experience that has proven to keep customers coming back. I highly recommend working with Jakub!”
Sean Tepper, Founder & CEO at Tykr

Sean Tepper

Founder & CEO at Tykr
“My experience working with Jakub has been phenomenal. We’ve worked together on different projects at different companies and his designs have always been clean, clear, and thoroughly cover all the requirements.”
Omar Abuhashish, Co-Founder & CEO at Reform (YC W24)

Omar Abuhashish

Co-Founder & CEO at Reform (YC W24)
"Working with Jakub has been a genuinely positive experience. His thoughtfulness, talent, and eye to detail are evident throughout his work. His ability to incorporate creative ideas while being receptive to feedback is highly valued. I look forward to future opportunities to work together."
Ewelina Skłodowska, UX Designer

Ewelina Skłodowska

Interaction Designer at Google
"Jakub did an outstanding job designing the Design System for our app as well as the core product. His work is consistently high quality, with a sharp eye for detail and a deep sense of structure. He works fast, translates complex design principles into clean, scalable components, and adds real value to any team. Working with him is a pleasure."
Nordin Bouchrit, Co-Founder & CPO at Zeno

Nordin Bouchrit

Co-Founder & CPO at Zeno
“Jakub is creative, productive, and creates designs that are clean, simple, functional and aesthetically pleasing. He is great to work with and consistently delivers excellent work.”
Jon Lerner, Co-Founder & CEO at CoinTracker

Jon Lerner

Co-Founder & CEO at CoinTracker
"Working with Jakub transformed our project. He brought exceptional design skills and strategic thinking to the user experience. His attention to detail and ability to create elegant, intuitive interfaces consistently exceeded expectations. The result is a product that looks great, feels seamless, and truly resonates with our users. I'd highly recommend him to anyone serious about great design."
Jad Shakhashir, Founder & CEO at Sahra Events

Jad Shakhashir

Founder & CEO at Sahra Events

Frequently asked questions

Building something new or improving an existing product?

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Jakub Wojnar-Płeszka
30 minute intro to see if we're a fit