Alex Cerezo

Senior Design Engineer | Product Design, AI & Design Systems

Greater Barcelona Metropolitan Area

About

Design Engineer with 10+ years of experience building complex B2B SaaS products at the intersection of design, engineering, and AI. Currently working with Elastic and PepsiCo, leveraging AI tools (Cursor, Claude) to move faster from idea to production-ready solutions. Strong focus on design systems, product strategy, and scalable workflows. Skills: - Product Design & UX Strategy - AI-assisted Design & Prototyping (Cursor, Claude, LLM workflows) - Experimentation & A/B Testing - Design Systems (Figma, Tokens, React, CSS) - Frontend (React, Vue, HTML, CSS, JS, Git) - Cross-Functional Collaboration - Tools: Figma, Cursor, Claude, Storybook

Experience

  • Senior Design Engineer at Contractor
    Oct 2024 - Present · 1 yr 10 mos

    - Designing and improving B2B SaaS products with a focus on usability, scalability, and performance. - Collaborating closely with product and engineering to define and deliver solutions. - Using AI-assisted tools (Cursor, Claude) to prototype and validate ideas faster. - Contributing to design systems and aligning design–engineering workflows. - Working on areas such as onboarding, internal tools, and data-driven interfaces. Selected clients: Elastic — Documentation platform, design systems (EUI), IA improvements. PepsiCo — Internal tools, complex workflows, enterprise environments.

  • Lead Design Engineer at Greyfinch
    May 2023 - Oct 2024 · 1 yr 6 mos

    - Redesigned scheduling system for orthodontic clinics, reducing appointment management time by 40%. - Co-designed and contributed to a custom frontend framework built on top of a new Design System created from scratch. - Redesigned reporting and payment workflows, simplifying financial processes for both clinics and patients.

  • Lead Product Designer at Wolters Kluwer
    May 2021 - May 2023 · 2 yrs 1 mo

    - Contributed to 197% revenue growth in two years by improving product usability and supporting business expansion. - Designed analytics dashboards for financial advisors, improving clarity and usability of key metrics. - Led design efforts to localize and scale the product for new markets (Spain and Denmark).

  • Design Engineer at eDreams ODIGEO
    Mar 2017 - Jan 2021 · 3 yrs 11 mos

    - Built the Design System for five brands from 0→1, defining tokens, components, and documentation. - Partnered with engineers to ensure consistent implementation across platforms. - Mentored designers on system adoption, improving design-to-dev efficiency.

  • Senior Product Designer at Enfusión - Diseño & Comunicación
    Apr 2016 - Nov 2016 · 8 mos

    At Enfusión we designed simple and delightful products for startups and big companies. I led the Product Design team.