Dominik Księżyk
Senior Product Designer who ships products.
I specialise in financial products like neobanks, mobile banking, leasing platforms used by millions of people. Currently at Erste Bank. Previously leading design at ICEO Venture Builder, and at Ailleron working on products for BNP Paribas, Santander and VeloBank.
Using AI tools like Claude Code and Figma AI, I've built workflows that reduce back-and-forth between design and development. I introduced these tools to the whole team, cutting time spent on research, documentation, and handoff.
Experience
2026 → present
Senior Product Designer · Erste Bank
Leading product design for an internal advisor tool serving one of the largest banking networks in Poland, covering end-to-end customer service workflows and legacy system migration. Evaluating and introducing AI tools (prototyping, workshop facilitation, design assistance) into the design workflow at enterprise scale.
2025 → 2026
Senior Product Designer · ICEO Venture Builder
Owning product design for a neobank from KYC onboarding and card management to a cross-platform design system with 50+ components. Leading a design team within a 20–30 person cross-functional team.
2023 → 2025
Senior Product Designer · Ailleron S.A.
Worked across Poland's biggest banking and fintech brands: BNP Paribas, Santander, VeloBank (1.7M customers), SGB, Credit Agricole EFL, and Bank Pocztowy. Delivered banking apps, leasing platforms, and design systems. Ran design teams, facilitated stakeholder workshops, and mentored mid-level designers across multiple projects.
2022 → 2023
UI/UX Designer · BBK / Home and you
Sole designer for one of Poland's largest furniture e-commerce stores. Built a design system from scratch and led the dev rollout resulting in increased site traffic and fewer abandoned checkouts.
Certifications
WCAG — Utilizing Web Content Accessibility Standards · Poland Ministry of Digitization
Credential ID CERT/7/2026/00661
Accessible Design · kinaole
Credential ID 012/012025
Accessibility for Designers · Smashing Magazine
Conscious Approach to UX Design — Wojtek Kutyła · Learn Design
Certificate No. 2023/11/7
Sztuka Projektowania Course · Sztuka Projektowania
Certificate No. 8.13