Senior Product/UX Designer | Responsible AI, Accessibility, Research and Design Systems
Toronto, Canada | Remote or hybrid | contact@pixelperfectmarcela.com | linkedin.com/in/marcelamsouza/
Positioning
I bring 15+ years across digital design, including enterprise, fintech, SaaS and EdTech, with a focus on responsible AI, accessibility and product systems. My work
connects research, product strategy, clear information architecture and implementation-ready design.
Core Strengths
AI product UX: conversational interfaces, account states, operational dashboards and human control.
Accessibility-informed design: content, hierarchy, interaction patterns and usability testing.
Research synthesis, stakeholder alignment, service journeys and developer-ready documentation.
Design systems, 0-to-1 product definition, motion with purpose and editorial illustration.
Professional Experience
Senior Product Designer — Chalky AI
2025–Present
Lead end-to-end design of AI-assisted learning experiences across responsive web and mobile products.
Conduct usability testing with parents and children and apply findings to onboarding, dashboards and learning journeys.
Build reusable Figma components and responsive patterns, collaborating with product and engineering through implementation.
Senior UX Designer — Dakia Canada
2023
Redesigned an AI-assisted content creation flow, with reported outcomes of 15% less task completion time and 20% higher engagement.
Translated requirements into user flows, prototypes and high-fidelity interfaces, partnering with founders, product stakeholders and developers.
Senior UX Designer — GlobalHitss
2022–2023
Led design of a centralized conversational AI and bot management dashboard.
Conducted discovery workshops, research, journey mapping and workflow analysis.
Created user flows, prototypes and implementation-ready interfaces; reported a 30% reduction in iteration cycles through design clarity and stakeholder alignment.
UX Designer, Enterprise Products — Bradesco Bank
2021–2023
Designed loan and credit application journeys with product, engineering and compliance stakeholders.
Contributed to a 10% increase in FGTS-backed loan conversion through UX simplification and information hierarchy.
Improved design system consistency, with a reported 5% reduction in design errors.