Portfolio: https://leoantun.es Product Designer focused on complex systems, Developer Experience, and AI‑assisted workflows. I co‑founded Simpli Studio (design + Webflow development) and previously contributed to IBM’s TechXchange programs.

2025 — NowAnysphereCursor Ambassador

2025 — Now

San Francisco Bay Area

Part of a small team that is bringing together the Cursor community through meetups, code collaborations, and shared expertise. Passionate about fostering a vibrant network of developers and pushing the boundaries of AI-driven coding innovation.

2024 — NowNomadProduct Designer (Web/Visual) - Growth

2024 — Now

Delivered high‑quality web design, prototypes, and production assets across multiple client engagements

Improved site structure and visual systems for consistency, readability, and responsive behavior

Collaborated with developers to ensure design feasibility and maintainable CSS/component structures

Standardized handoff practices (component specs, states, accessibility notes) to reduce rework

2023 — NowSimpliCo‑founder, Product Designer & Front-end Developer

2023 — Now

Remote

Led end‑to‑end product design for startups and SMEs: discovery, information architecture, prototyping, usability validation, and Webflow implementation

Built and maintained modular design systems to accelerate delivery across multiple client sites and MVPs

Translated business goals into measurable UX outcomes; instrumented analytics and ran iterative improvements

Established accessibility and performance baselines (semantic structure, responsive patterns, WCAG‑aware components)

Managed client relationships and scoped work for speed, quality, and maintainability

2022 — 2023IBMSenior Web Designer

2022 — 2023

United States

As the lead web and digital focal for IBM's TechXchange global events team, I oversaw all web development, design, and digital marketing for technical conferences, summits, and seminars.

My core responsibilities included:

Collaborating with event managers to define digital experience and promotion strategy for 5-10 events per year.

Leading development of event websites and registration portals using WordPress.

Creating web content, email campaigns, social media graphics and ads for event promotion.

Analyzing website traffic, social engagement, email stats to optimize conversion rates.

Coordinating with IBM cloud and security teams on technical integrations.

Managing junior designers to build out digital assets and web pages.

Ensuring websites and campaigns followed IBM brand guidelines and accessibility standards.

Staying on top of web/digital trends and technologies to elevate IBM's events.

Presenting website analytics reports and optimization recommendations to stakeholders.

2020 — 2022IBMWeb Designer | Javascript - Figma - CSS - React

2020 — 2022

United States

As a web designer for IBM's TechU technical events team, I was responsible for designing and building event websites, registration portals, and other digital experiences.

My key responsibilities included:

Collaborating with event producers and managers to understand goals and requirements for each event's digital presence.

Creating wireframes, mocks, and prototypes for event sites and pages using design tools like Figma and Adobe XD.

Building responsive, mobile-friendly event sites using HTML, CSS, and JavaScript. Integrating with backend platforms like WordPress and Drupal.

Ensuring all web deliverables met IBM’s brand guidelines and accessibility standards.

Designing promotional web content, email templates, digital ads and social media graphics.

Optimizing web conversion funnels by A/B testing calls-to-action, page layouts, etc.

Analyzing web analytics and generating reports to share performance insights.

Mentoring entry-level designers on web best practices and IBM’s digital style guide.

Keeping up-to-date on web design trends, techniques, and technologies.

During my tenure, I successfully delivered digital experiences for over 20 IBM technical events, including Think and several TechU virtual summits. I consistently received positive feedback for my creative ideas, technical skills, and commitment to event marketing goals. My work helped generate over 30,000 event registrations.