Web Development Specialist -Freelance AI Trainer Project

Jobgether; Brazil; Remote; BRL 56,000 - 456,000; Full time

Benefits offered by this job

Remote freelance work

Hourly USD 8–65 with experience

Flexible contract-based engagement

AI technology advancement

Job summary

Jobgether is seeking a Web Development Specialist – Freelance AI Trainer Project based in Brazil. You will evaluate AI-generated web development solutions with focus on UI/UX, responsive layouts, accessibility, and component architecture.

This remote, contract-based role involves testing code, documenting issues, and providing clear feedback to refine model performance. Strong React/Next.js skills and communication are essential.

Qualifications

• Experience in modern front-end development and UI/UX implementation.
• Strong knowledge of React and component-based architecture.
• Familiarity with Next.js, including SSR and dynamic routing.
• Proficiency in semantic HTML, modular CSS, responsive design, and accessibility.
• Understanding of API-driven development and client-server interactions.
• Clear written communication and ability to explain reasoning step by step.
• Remote, self-directed work style.
• Portfolio with production-grade React/Next.js projects preferred.

Responsibilities

• Evaluate AI-generated web development solutions.
• Assess UI/UX and accessibility.
• Document reproducible issues with clear reasoning.
• Provide actionable feedback to improve model behavior.
• Review Next.js SSR and routing and API interactions.

Skills

React

Next.js

Semantic HTML

Modular CSS

Responsive design

Accessibility

UI/UX

API-driven dev

Cross-browser

Problem solving

Education

Bachelor’s or Master’s in CS/Web Dev

Job description

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Web Development Specialist – Freelance AI Trainer Project based in Brazil.

As a Web Development Specialist – AI Trainer, you will use your front-end development expertise to help improve the accuracy, reasoning, and practical capabilities of advanced AI models. You will evaluate AI-generated solutions against real-world web development challenges, focusing on modern UI/UX design, responsive layouts, accessibility, and component architecture. Working on a flexible, remote freelance basis, you will assess code quality, test technical solutions, and identify errors across a wide range of web technologies. You will document reproducible issues and provide detailed explanations that help refine model behavior and evaluation methods. Your insights will contribute to building more reliable AI systems capable of supporting developers and designers across industries. This opportunity is ideal for an experienced web development professional who enjoys analytical problem-solving, technical experimentation, and shaping the future of AI.

Accountabilities

You will apply your web development knowledge to evaluate AI-generated code and technical reasoning, identify weaknesses, and provide structured feedback that improves model performance. Your work will combine practical coding expertise, critical analysis, and clear technical communication.

• Engage with AI models on realistic web development problems, including front-end implementation, interactive components, and application logic.
• Evaluate the accuracy, functionality, and design quality of AI-generated solutions.
• Assess modern UI/UX practices, responsive layouts, accessibility standards, and cross-browser compatibility.
• Review semantic HTML, modular CSS, React component architecture, and design system implementation.
• Evaluate Next.js applications, including server-side rendering, dynamic routing, and client-server interactions.
• Analyze API-driven interfaces, performance optimization techniques, and other common web development challenges.
• Identify model errors, reasoning gaps, implementation weaknesses, and recurring failure patterns.
• Document reproducible error traces and explain technical issues clearly, showing the reasoning behind your assessments.
• Provide actionable feedback to support improvements in prompt engineering, model reasoning, and evaluation metrics.
• Apply practical development standards to help make AI-generated web solutions more reliable, accessible, maintainable, and production-ready.

Requirements

The ideal candidate has strong practical web development experience and the ability to evaluate technical solutions critically. You should be comfortable explaining your reasoning, identifying subtle implementation issues, and communicating complex concepts in a clear, structured manner.

• Professional experience in web development, particularly modern front-end development and UI/UX implementation.
• Strong knowledge of React and component-based architecture.
• Familiarity with Next.js, including server-side rendering and dynamic routing.
• Proficiency in semantic HTML, modular CSS, responsive design, and accessibility best practices.
• Understanding of API-driven development, client-server interactions, web performance, and cross-browser compatibility.
• Ability to assess code quality, identify technical errors, and validate the correctness and practicality of implementation choices.
• Strong analytical and problem-solving skills, with attention to detail and the ability to recognize recurring patterns.
• Clear written communication skills and the ability to explain technical reasoning step by step.
• A self-directed working style and the ability to work independently in a remote, project-based environment.
• A bachelor's or master's degree in web development, computer science, digital design, or a related discipline is preferred.
• A portfolio featuring production-grade React or Next.js projects, experience with design handoffs, or contributions to open-source front-end libraries is an advantage.

Benefits

• Fully remote freelance work, allowing you to work from your preferred location, subject to project eligibility.
• Hourly compensation ranging from $8 to $65 USD, depending on experience, expertise, and geographic location.
• Flexible, contract-based engagement suited to independent professionals.
• An opportunity to apply your web development expertise to the advancement of AI technology.
• Exposure to challenging technical evaluation tasks involving modern web development practices.
• The opportunity to influence how AI models reason about code, design, accessibility, and software implementation.

How Jobgether works

We use an AI-powered matching process to ensure your application is reviewed quickly, objectively, and fairly against the role's core requirements. Our system identifies the top-fitting candidates, and this shortlist is then shared directly with the hiring company. The final decision and next steps (interviews, assessments) are managed by their internal team.

We appreciate your interest and wish you the best!

Data Privacy Notice

By submitting your application, you acknowledge that Jobgether will process your personal data to evaluate your candidacy and share relevant information with the hiring employer. This processing is based on legitimate interest and pre-contractual measures under applicable data protection laws (including GDPR). You may exercise your rights (access, rectification, erasure, objection) at any time.