Resume
izaias
Product designer, UX researcher, and writer with over 25 years in user experience. I reduce cognitive distance — the gap between how designers imagine interaction and how people actually understand a system.
Available for remote work · Timezone-flexible · Async-first
Skills
Research & Strategy
- UX Research (mixed methods)
- Experiment Design
- Survey & Interview Design
- Think-aloud Protocols
- Cognitive Distance Analysis
- Systems Thinking
- HCI
Design & Craft
- Product Design
- Design Systems
- Accessibility (WCAG 2.1)
- Information Architecture
- Interaction Design
- Voice & Tone
Engineering & Tools
- Next.js / React / TypeScript
- Tailwind CSS
- HTML / CSS / Semantic Markup
- Figma
- AI-Assisted Development
- Prototyping in Production Stack
Selected work
Personal · Public
2026Design Lead & Sole Author
The tokens, components, patterns, voice, and diagrams behind this portfolio. Documented as a working site, not a Figma deck.
Design SystemDocumentationVoice & ToneAccessibilityOpen Source, MIT
2026Sole designer
A free image optimizer that runs entirely in your browser. The first design system was warm, editorial, and completely predictable. This is the case study for the second one, built on a single rule: the photograph is the only colour on screen.
Product DesignDesign SystemMicrointeractionsLocalisationIndependent UX Research
2025 to 2026Researcher & Engineer
International HCI experiment that isolates interface language as the only variable across banking, healthcare, and government flows. Empirically validating cognitive distance as a measurable construct distinct from cognitive load.
UX ResearchCognitive DistanceHCIExperiment DesignAccessibilityIndependent product exploration
2025 to 2026Senior Product Designer
How I designed approval, document creation, and signature tracking on a phone while preserving the context each decision required.
Product DesignMobile UXContract WorkflowsInteraction DesignRádio Alvorada TV
2025–2026Product Designer & Design Engineer
Custom live TV: OBS publishes RTMP, nginx writes HLS segments, a Next.js viewer handles mobile unmute policy and YouTube fallback.
Live StreamingDesign EngineeringMobile UXHLSRádio Alvorada TV
2025 to 2026Design Systems Lead
The foundational design system behind the platform: semantic tokens, component variant rules, accessibility foundations, and 24 documented sections that ground the website, audio tooling, and live TV.
Design SystemDesign TokensAccessibilityComponent LibraryRádio Alvorada TV
2025–2026Product Designer & Design Engineer
Public Next.js platform with persistent Shoutcast radio, São Paulo schedule engine, PWA install, and CMS-ready editorial.
Product DesignPWAAudio UXEditorialRádio Alvorada TV
2025–2026Product Designer & Design Engineer
Self-hosted Icecast on Oracle Always Free with a WebSocket bridge — operators go live from the browser, listeners tune in via MP3.
Design EngineeringWebRTC-adjacentIcecastStreamingEnterprise CLM
2024Lead Product Designer
A real-time collaborative CLM workflow engine that reduced Time to Audit by 70% for Fortune 500 legal teams.
EnterpriseLegal TechSystems DesignOpen Source
2024Design Engineer
From personal friction to 14K+ Figma views and a framework-agnostic library used in production.
Design EngineeringOpen SourceAccessibilityVisa
2023Lead Product Designer
Unifying fragmented onboarding across 15+ regions while negotiating user friction and business constraints.
AuthenticationGlobal ScaleMobile-First
Writing
Essays on UX research, systems thinking, cognitive distance, and the space between designer intent and lived experience.
Available for remote work
Open to full-time remote positions, contract work, and research collaborations.