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Job Description & How to Apply Below
Critical Mass seeks a motivated Contract Senior Front-End Developer to enhance high-visibility marketing websites. Focus on pixel-perfect execution and responsive design to elevate user experiences in this time-sensitive role.
Spanning from July 1 to July 31, 2026, the opportunity is within the Communications team. With your extensive background in HTML5, CSS3, and JavaScript, you'll create engaging campaign layouts and collaborate closely with Design and UX teams to ensure designs come to life seamlessly. Your proactive approach to optimizing page performance is paramount.
Key Responsibilities:
• Execute pixel-perfect front-end designs across viewport sizes
• Create responsive pages with modern animations
• Collaborate effectively with Design and UX teams
• Drive page performance optimization and WCAG compliance
• Manage timelines and produce quality work independently
Requirements:
• 4+ years with Vanilla Java Script
• 5+ years in building consumer-facing websites
• Expertise in SVG animations and responsive layouts
• Proficient with Git and web performance optimization
• Strong communication and collaboration skills
Make a direct impact on Critical Mass’s web presence through your front-end expertise.
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Position Requirements
10+ Years
work experience
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