Updated on 08/28/2026

Guilherme Kerber

contact@guikerber.com www.guikerber.com LinkedIn (55) 51 993431456
About me

Senior Product Designer with 15+ years designing complex digital products across Fintech, SaaS, AI and Gaming. I work across product strategy, UX and visual design — from early exploration through to interfaces, design systems and developer handoff, bringing AI in without losing product thinking.

Experience

Senior Product Designer for Koncepted

April 2019 — Aug 2026 · 7 yrs · Remote

  • Designed and launched an AI agent tool for creators and an AI NPC builder for game studios.
  • Led design on a SaaS product (NDA) that increased user acquisition and retention by 30%, through improvements across onboarding and core product flows.
  • Launched credit market and order-book trading features for a leading crypto wallet, extending the platform into new financial products.
  • Partnered with 50+ companies to launch new products and websites, owning design from early definition through implementation.

Mid Product Designer for 46graus

Oct 2016 — Apr 2019 · 2 yrs 7 mos · Porto Alegre, Brazil

  • Sole Product Designer at 46graus, growing the userbase from 100K to 200K+ as it evolved from a website builder into a multi-product platform for creators and small businesses.
  • Worked closely with development in an agile environment, from early definition and prototyping through implementation, and established the platform’s design system as it scaled.

Junior UI/UX Designer for Reweb

Aug 2014 — Oct 2016 · 2 yrs 3 mos · Porto Alegre, Brazil

  • Designed conversion-focused landing pages for the automotive industry, and built a design-code library of proven patterns that cut turnaround from weeks to days.

Design Intern for JOIN Tecnologia

Dec 2010 — Feb 2014 · 3 yrs 3 mos · Porto Alegre, Brazil

  • First design role — interfaces for internal systems and client web projects, alongside engineers.
Skills
Product
Strategy, user flows, information architecture
User experience & interface
UX and visual design, design systems, prototyping, responsive, handoff
AI
AI-assisted prototyping with Claude Code, AI image generation with ChatGPT and MJ
Soft Skills
Cross-functional collaboration, Stakeholder communication, Autonomous decision-making
Education
AI/UX Design Masterclass
UX Unicórnio · Aug — Dec 2025
Publicity and Advertising, BA
PUCRS, Porto Alegre, Brazil · 2009 — 2014