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I am a Front-end Developer focused on efficiency, usability, and accessibility. I build interfaces that meet WCAG standards and collaborate with design teams to ensure solid end-user experiences. I bridge engineering and design, shape UI libraries, and explore innovative front-end technologies like WebGL. I enjoy leading collaborative teams and continuously learning to translate creative vision into a smooth user experience.…I am a Front-end Developer focused on efficiency, usability, and accessibility. I build interfaces that meet WCAG standards and collaborate with design teams to ensure solid end-user experiences. I bridge engineering and design, shape UI libraries, and explore innovative front-end technologies like WebGL. I enjoy leading collaborative teams and continuously learning to translate creative vision into a smooth user experience.

Lionel Ferrer

Front-End Developer, Web Developer, UX Designer, +1

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I am a Front-end Developer focused on efficiency, usability, and accessibility. I build interfaces that meet WCAG standards and collaborate with design teams to ensure solid end-user experiences. I bridge engineering and design, shape UI libraries, and explore innovative front-end technologies like WebGL. I enjoy leading collaborative teams and continuously learning to translate creative vision into a smooth user experience.…I am a Front-end Developer focused on efficiency, usability, and accessibility. I build interfaces that meet WCAG standards and collaborate with design teams to ensure solid end-user experiences. I bridge engineering and design, shape UI libraries, and explore innovative front-end technologies like WebGL. I enjoy leading collaborative teams and continuously learning to translate creative vision into a smooth user experience.

Available to hire

I am a Front-end Developer focused on efficiency, usability, and accessibility. I build interfaces that meet WCAG standards and collaborate with design teams to ensure solid end-user experiences.

I bridge engineering and design, shape UI libraries, and explore innovative front-end technologies like WebGL. I enjoy leading collaborative teams and continuously learning to translate creative vision into a smooth user experience.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Language

Spanish; Castilian

Fluent

English

Fluent

Portuguese

Beginner

Work Experience

Principal Software Development Engineer at Oracle

October 1, 2025 - October 15, 2025

Key driver in product development, delivering major features while upholding WCAG Accessibility standards. Collaborated with Design and documented a shared component library to boost code reuse across all product teams, significantly improving Developer Experience (DX).

Web UI/UX Developer / Technical Manager Consultant at Oracle

February 1, 2020 - October 15, 2025

Managed task delegation, team alignment, and ensured comprehensive technical documentation. Served as the primary technical point of contact, translating customer and business requirements into structured development plans.

Web UI Developer & SCA Consultant at Oracle

July 1, 2017 - October 15, 2025

Responsible for high-quality UI development for the company’s exclusive E-Commerce platform, using Bootstrap, JS/jQuery, CSS/Less, and HTML. After the first year, mentored new hires as a consistent guide.

UI Developer at Pier.ws

February 1, 2013 - October 15, 2025

In charge of UI development; worked with jQuery, CSS, HTML, and WordPress. Collaborated in a team of programmers and designers for customized projects; some work performed as a freelancer and some at the office.

UI Developer at OneTree

January 1, 2013 - October 15, 2025

UI development with jQuery, CSS, HTML, WordPress, Magento, Drupal, and Liferay; direct client communication, solution development, and project planning as part of a cross-functional team.