Senior Frontend JavaScript Design System Engineer

Title:

Senior Frontend Design System Engineer

Key Skills:

JavaScript, TypeScript, Design Systems, React, Angular, Vue, Wiz Framework, CSS/SCSS, Automated Testing, Component Architecture

Experience:

7+ years of frontend development experience.

Location:

Costa Rica or Peru.

Modality:

Remote only in Costa Rica or Peru.

At Coforge, we are looking for a Frontend JavaScript Design System Engineer (#20904-20-2) with the following profile.

Main Responsibilities

• Build and maintain reusable, scalable UI components and modules using TypeScript/JavaScript and component-based frameworks.
• Develop schema-driven frontend solutions capable of dynamically rendering content through configuration-based architectures.
• Translate UX/UI designs into pixel-perfect, responsive, and cross-browser compatible interfaces.
• Integrate components across multiple architectural layers, including schemas, data pipelines, runtime rendering, and CMS platforms.
• Develop automated unit, integration, and regression tests to ensure component quality and stability.
• Ensure adherence to design system standards, performance requirements, and frontend best practices.
• Optimize component maintainability, scalability, and long-term stability.
• Collaborate with cross-functional teams to deliver consistent and high-quality user experiences.
• Navigate complex codebases and contribute high-quality solutions with minimal supervision.

Required Qualifications

• 7+ years of experience in frontend software engineering.
• Strong proficiency in JavaScript and TypeScript.
• Experience working with modern frontend frameworks such as React, Angular, Vue, or similar component-driven frameworks.
• Ability to quickly adapt to proprietary frameworks and internal development ecosystems.
• Proven experience building schema-driven and data-driven UI components.
• Strong understanding of component architecture and reusable design patterns.
• Advanced knowledge of CSS, SCSS/Sass, Flexbox, CSS Grid, responsive design, and design token-based systems.
• Experience developing pixel-perfect user interfaces from design specifications.
• Strong experience with automated testing frameworks such as Jest, Jasmine, Karma, or similar solutions.
• Deep understanding of DOM lifecycle, semantic HTML, browser rendering, and frontend performance optimization.
• Experience handling edge cases, dynamic content rendering, localization, and responsive behavior.
• Strong problem-solving skills and ability to work autonomously in complex technical environments.
• Experience with Git and modern software development practices.
• Upper-Intermediate to Advanced English communication skills.

Preferred Qualifications

• Experience working with design systems, component libraries, or enterprise-scale frontend platforms.
• Previous exposure to Google technologies and frameworks such as Wiz, Blaze/Bazel, or related internal tooling.
• Experience building CMS-driven frontend architectures.
• Knowledge of accessibility standards (WCAG / a11y).
• Experience with tokenized design systems.
• Familiarity with frontend performance optimization and scalability practices.
• Experience supporting large-scale web platforms serving high-traffic environments.
• Published on: 05-10-2026
• At Coforge, we hire professionals solely based on their skills and qualifications and do not discriminate based on age, disability, religion, gender, sexual orientation, socioeconomic status, or nationality.