Frontend Engineering Specialist

About xAI

xAI’s mission is to create AI systems that can accurately understand the universe and aid humanity in its pursuit of knowledge. Our team is small, highly motivated, and focused on engineering excellence. This organization is for individuals who appreciate challenging themselves and thrive on curiosity. We operate with a flat organizational structure. All employees are expected to be hands-on and to contribute directly to the company’s mission. Leadership is given to those who show initiative and consistently deliver excellence. Work ethic and strong prioritization skills are important. All engineers are expected to have strong communication skills. They should be able to concisely and accurately share knowledge with their teammates.

About the Role

We are seeking a highly skilled Software Engineering Specialist to join xAI’s Human Data team, where you will play a critical role in creating cutting-edge datasets to train, benchmark, and advance large language models. In this role, you will collaborate with technical staff to curate high-quality code examples, refine AI-generated code, and enhance enterprise-level AI-driven coding solutions. By leveraging your expertise in front-end development and data annotation across text, voice, and video formats, you will help teach AI models about human interactions, reactions, and problem-solving approaches. Ideal candidates are adaptable, detail-oriented, and passionate about driving innovation in a fast-paced environment to support xAI’s mission of building a trusted global digital public square.

Key Responsibilities

• AI model training initiatives by curating code examples, offering precise solutions, and meticulous corrections in Python, JavaScript (including ReactJS), C/C++, Java, Rust and Go.
• The Front-End Specialist will focus on any and all Enterprise aspects, as listed in ‘Required Qualifications’ section.
• Evaluate and refine AI-generated code, ensuring it adheres to industry standards for efficiency, scalability, and reliability.
• Collaborate with cross-functional teams to enhance AI-driven coding solutions, ensuring they meet enterprise-level quality and performance benchmarks.

Required Qualifications

• 5+ years of professional front-end development experience building responsive, user-facing web applications.
• Proficient in JavaScript (ES6+) and TypeScript.
• Strong experience with modern frameworks: React, Vue, Angular.
• Solid understanding of component lifecycle, hooks and state management.
• Expertise in CSS, Tailwind, responsive design, UI interactions and animations.
• Experience with performance optimization: lazy loading, caching strategies, asset optimization.
• Experience with accessibility standards (WCAG, ARIA roles, keyboard navigation).
• Familiarity with SEO best practices for web applications.
• Strong debugging skills using browser DevTools and performance monitoring tools.
• Experience with testing frameworks (Jest, Vitest, Playwright).
• Understanding of APIs and client-server communication.