Sayuri Santibáñez

Mobile application - Customer-facing (solar monitoring, battery & EV charger control)

• Led UX/UI for a solar monitoring app, giving customers real-time insights into energy production, battery status, EV charging, and savings.
• Improved feature discoverability and engagement by +30% through intuitive flows and usability testing.
• Reduced onboarding-related support issues by -35% via clearer navigation and data visualization.
• Built and maintained a scalable design system, cutting UI development time by 25% and ensuring faster, more consistent handoffs.
• Collaborated closely with developers to align designs with technical feasibility and reduce rework during implementation.
• Product reached pre-launch phase and was scheduled for customer release; development was paused two weeks before launch due to internal business readjust.

Web App – Internal Platform for Sales & Project Management

• Led UX and UI design for an internal platform supporting solar product sales, customer pipelines, and installation workflows.
• Reduced sales creation time by 45% and project management effort by 35%, streamlining operations and minimizing revenue loss from inefficiencies.
• Built and maintained a scalable design system, cutting UI development time by 30% and ensuring visual and functional consistency.
• Took on Product Owner responsibilities, prioritizing features based on user research, stakeholder needs, and business goals.
• Helped automate repetitive tasks, allowing teams to shift focus to strategic work and improving overall project delivery.
• Platform was declared core to business growth and is now positioned to support the company during Sweden’s solar industry downturn by increasing operational efficiency and aligning with strategic goals.

• Led UX for digital products across E-commerce, Fintech, and cybersecurity sectors.
• Managed and mentored a team of 5 designers through the launch of a scalable e-commerce platform.
• Drove UX strategy, design execution, and collaboration with PMs, engineers, and stakeholders.
• Facilitated workshops, led research, and created flows, wireframes, and high-fidelity prototypes.
• Contributed to UX research for U.S.-based clients to support data-driven design improvements.

Key Projects:

• E-commerce: MVP definition, mobile/web design, usability testing. Today, the platform is used by nearly 200,000 users across Mexico. Client: Betterware de México SAPI de CV.
• Fintech: Competitive analysis, POC research, product strategy input. Client: Walmart de México.
• Security tools: UX improvements, data visualization, retention flows. Client: F5, Inc.

• Improved enterprise tools using IBM's Carbon Design System and Agile practices.
• Designed responsive interfaces and collaborated with engineering teams to modernize legacy systems.
• Participated in design review meetings to brainstorm new UX developments through collaborative thinking.
• Presented design concepts to executive leadership, effectively communicating rationale behind decisions and advocating for user-centric approaches.
• Managed cohesive design quality across one large project (IBM Partner Plus, formerly known as IBM PartnerWorld), adhering to prescribed themes and functional choices.
• Consistently received positive feedback from end-users, validating the effectiveness of design solutions in meeting user needs and enhancing overall satisfaction.

Managed web projects for IBM.com, working closely with stakeholders including digital strategists and portfolio managers to ensure deliverables met agreed timelines and budgets (per DOU). Oversaw cross-functional teams (design, development, QA), led project planning, and facilitated clear communication across teams. Strong focus on team coordination, client alignment, and delivery management within fast-paced digital environments.

Built and maintained front-end features for CMS-based websites, contributing to responsive UI development and collaborating across teams to ensure efficient delivery. Supported IBM.com web projects, applying strong understanding of technical complexity, time management, and cross-functional communication.