Nextmark

UI Developer

Contractor · Remote · 10 openings

Apply software engineering expertise to review AI-generated code, architecture decisions, and technical documentation. Catch bugs, security issues, and design flaws before they propagate — and create training examples that measurably improve AI code quality.

Key Responsibilities

  • • Build, optimize, and maintain intricate UIs using React, TypeScript, and modern frontend frameworks.
  • • Translate Figma designs and wireframes into pixel-perfect, reusable components with Tailwind CSS, SCSS, and Bootstrap.
  • • Ensure consistent and responsive design across devices and browsers through best-in-class coding standards.
  • • Implement performance optimizations and uphold web accessibility (WCAG) best practices throughout the stack.
  • • Integrate frontend components with REST APIs, ensuring smooth data flow and robust user interaction.
  • • Collaborate with designers, developers, and stakeholders using strong written and verbal communication skills.
  • • Own the frontend architecture, advocate for clean code, and actively participate in code reviews.

Required Skills & Qualifications

  • • 4+ years of hands-on experience in professional UI development with a primary focus on React and TypeScript.
  • • Advanced proficiency in HTML5, CSS3, SCSS, and modern JavaScript (ES6+).
  • • Experience with responsive design methodologies and cross-browser compatibility.
  • • Strong expertise in DOM manipulation, REST API integration, and frontend performance tuning.
  • • Mastery of version control using Git and collaborative workflows.
  • • Proven ability to convert design specifications from Figma into flawless, maintainable code.
  • • Deep understanding of web accessibility standards and UX principles.

Preferred Qualifications

  • • Experience architecting scalable frontend solutions in large codebases.
  • • Familiarity with automated testing frameworks for frontend applications.
  • • Prior contributions to open-source UI component libraries or design systems.
  • We are looking for a dedicated professional who is driven by quality, thrives on solving complex problems, and is committed to delivering exceptional user experiences. Join our customer's team and make a tangible impact through your frontend expertise.

$30–$120/hr

Remote