Job Title: Senior Front-End Developer – Cells/Web Components
Location: Hybrid (Madrid – Las Tablas)
Position Overview
We are seeking a Senior Front-End Developer with strong expertise in modern front-end technologies to lead and
support web development projects. The ideal candidate will have advanced proficiency in JavaScript, TypeScript,
HTML, and CSS, along with hands-on experience in Web Components development—preferably using
LitElement/Cells, Angular 2+, or React. The role also involves leading automated test implementations and mentoring
junior developers.

Key Responsibilities
• Design and develop scalable front-end solutions using Web Components(LitElement/Cells preferred), Angular 2+,
or React.
• Write high-quality, maintainable code in JavaScript and TypeScript.
• Build responsive, accessible UIs using HTML5 and CSS3.
• Lead the implementation of automated testing frameworks, including Cucumber, Gherkin, Wdio-ChromeDriver,
and accessibility testing.
• Guide and mentor other developers, promoting best practices and coding standards.
• Collaborate closely with UX designers, backend developers, and stakeholders to ensure seamless integration and
delivery.
• Participate in architectural and design discussions, providing technical direction when needed.
Required Skills
• Minimum 4–5 years of experience in front-end development.
• Advanced proficiency in JavaScript and TypeScript.
• Deep knowledge of HTML and CSS, with a strong understanding of cross-browser compatibility and accessibility
standards.
• Experience with automated testing tools such as Cucumber, Gherkin, Wdio-ChromeDriver.
• Proven experience in Web Components development, ideally using LitElement or Cells.
• Experience with modern front-end frameworks such as Angular 2+ or React.

Nice to Have
• Familiarity with Agile methodologies and tools like JIRA or ServiceNow.
• Experience working with CI/CD pipelines and version control systems (e.g., Git).
• Background in performance optimization and SEO-friendly development.

Soft Skills
• Strong leadership and mentoring capabilities.
• Excellent communication and collaboration skills.
• Proactive and detail-oriented with a problem-solving mindset.
• Ability to work effectively in a hybrid and multicultural environment.