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React and Next.js Engineer

SME Careers

React Developer Contractor
Bangladesh, Bhutan, Brazil, Cambodia, Germany, India, Indonesia, Malaysia, Nepal, Pakistan, Singapore, Sri Lanka, Thailand, Philippines, United States, Timor-Leste, Vietnam Up to $90/hr June 8, 2026

Job description

About the Role

As a React / Next.js Engineer, you will work remotely on an hourly paid basis to review AI-generated React/Next.js code, frontend architectures, and technical explanations, as well as produce high-quality reference implementations and step-by-step reasoning for complex engineering problems.

You will assess solutions for correctness, clarity, accessibility, security, performance, and adherence to the prompt; identify issues in React rendering behavior, state management, SSR/SSG/ISR, routing/data fetching, hydration, caching, and bundle performance.

Key Responsibilities

  • Develop AI Training Content: Create detailed prompts across React/Next.js topics and write high-quality reference answers to guide AI learning
  • Optimize AI Performance: Evaluate and rank AI responses to enhance correctness, clarity, accessibility, and performance
  • Ensure Model Integrity: Test AI models for inaccuracies or unsafe recommendations, validating reliability across real-world use cases

Required Qualifications

  • Bachelor's degree or higher in Computer Science, Software Engineering, or a closely related technical field
  • 4+ years of professional experience building production web applications with React, including at least 2+ years with Next.js
  • Expert-level proficiency in modern React: hooks, component patterns, state management, memoization, rendering behavior, and testing
  • Strong Next.js fundamentals (Next 13/14+ preferred): App Router, Server Components, route handlers, middleware, caching, and deployment patterns
  • Performance mindset: bundle optimization, code splitting, image optimization, Core Web Vitals, and profiling
  • Experience with testing: Jest/Vitest, React Testing Library, Playwright/Cypress, linting, CI/CD
  • Minimum C1 English proficiency with ability to write clear technical explanations

Why Work with SME Careers?

  • Your work directly contributes to how AI systems learn and communicate
  • Set your own hours and work around your life
  • Weekly pay once work is approved
  • Referral bonus opportunities
Apply now

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Frequently asked questions

Is SME Careers legitimate?
Yes, SME Careers is a legitimate company listed on RemoWork. We verify all companies on our platform. However, we always recommend doing your own research before sharing personal information or starting work. Check reviews from other users and visit the company's official website for the most up-to-date information.
How do I get started with SME Careers?
To get started, visit SME Careers's official website and look for their careers or sign-up page. Create an account, complete your profile with relevant skills and experience, and apply for available positions or projects. Some companies may require you to pass a qualification test or assessment before you can start working.
Does SME Careers offer remote work?
Yes, SME Careers offers remote work opportunities. Most tasks and positions can be completed from anywhere with a reliable internet connection and a computer or smartphone. Specific location requirements may vary by project or role, so check individual listings for details.
How does SME Careers pay its workers?
Payment methods and schedules vary. Common payment options include PayPal, bank transfers, Payoneer, and other digital payment platforms. Visit SME Careers's official website or check their payment/FAQ section for specific details about payment methods, minimum thresholds, and payout schedules.
What skills do I need to work with SME Careers?
Required skills vary by role and project. Generally, you'll need a reliable internet connection, basic computer literacy, strong attention to detail, and good communication skills. Some positions may require specialized expertise, language proficiency, or technical qualifications. Check individual job listings for specific requirements.
What does
SME stands for "Subject Matter Expert." SME Careers connects individuals who have deep expertise in specific domains — such as medicine, law, engineering, science, or education — with AI companies that need expert knowledge to train and evaluate their AI models.
What kind of expert knowledge is most needed?
SME Careers seeks experts across many fields including healthcare, legal, STEM disciplines, finance, education, creative arts, and more. The most in-demand expertise tends to be in areas where AI models need specialized human judgment for accuracy, safety, and quality.
Are SME Careers roles suitable for part-time work?
Yes, many roles on SME Careers are designed for flexible, part-time engagement. Subject matter experts can often set their own schedules and work on projects that fit their availability, making it ideal for professionals looking for supplemental income alongside their primary career.
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