Senior Frontend Developer

Há 6 dias

Salvador, Bahia, Brasil Mojo Trek Tempo inteiro

Mojo Trek, an Inc. 5000 company, delivers an unparalleled technology recruitment experience, grounded in transparency and integrity. From midsize technology innovators to Fortune 50 powerhouse corporations, we build technology teams that make a difference. Joining Mojo Trek means being part of a team that influences the tech landscape on a global scale.

We are seeking a highly skilled Senior Front End Developer with deep expertise in HTML, JavaScript, and CSS to join our growing technology team. This role is ideal for someone who is passionate about building clean, responsive, and user-centric web applications. You will collaborate closely with designers, back-end engineers, and product managers to deliver seamless digital experiences at scale.

*This is a 6+ month contract.

Key Responsibilities

  • Lead the development and implementation of user-facing features using HTML5, modern JavaScript (ES6+), and CSS3.
  • Collaborate with UI/UX designers to translate wireframes and mockups into responsive, pixel-perfect interfaces.
  • Ensure web applications are optimized for speed, performance, accessibility, and cross-browser compatibility.
  • Mentor junior developers and provide code reviews to maintain high coding standards.
  • Partner with back-end engineers to integrate APIs and ensure smooth data flow between front-end and server-side systems.
  • Implement best practices in front-end architecture, reusable components, and modular design patterns.
  • Stay up to date with emerging front-end technologies, frameworks, and industry trends.
  • Troubleshoot, debug, and resolve front-end issues across different environments and devices.

Qualifications

  • 6-8+ years of professional front-end development experience.
  • Strong expertise in HTML5, CSS3 (including preprocessors like SASS/LESS), and modern JavaScript (ES6/ES7).
  • Experience with responsive design, grid systems, and mobile-first development.
  • Proficiency in debugging and optimizing front-end performance.
  • Knowledge of version control systems (Git) and collaborative development workflows.
  • Familiarity with front-end build tools (Webpack, Babel, npm, etc.).
  • Understanding of accessibility standards (WCAG, ARIA) and SEO best practices.
  • Excellent problem-solving skills, attention to detail, and ability to work in a fast-paced Agile environment.

Nice to Have

  • Experience with modern frameworks/libraries such as React, Vue, or Angular.
  • Exposure to TypeScript and component-driven development.
  • Background in design systems and style guide implementation.
  • Understanding of CI/CD pipelines and automated testing (Jest, Mocha, Cypress).

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