React and Next.js Engineer

SME Careers; India; Remote; INR 5,238,000 - 10,476,000; Part time

Job summary

SME Careers is seeking a fully remote React/Next.js Engineer to review AI-generated code and produce high-quality reference implementations with detailed explanations. You will evaluate frontend architectures, accessibility, security, and performance, ensuring best practices in rendering, routing, hydration, and caching.

The role is hourly and contractor-based, offering exposure to cutting-edge AI data services and opportunities for involvement in future projects within SME Careers’ expert

Qualifications

• Bachelor’s degree or higher in Computer Science, Software Engineering, or related field.
• 4+ years building production web apps with React, 2+ years with Next.js.
• Strong knowledge of React hooks, patterns, and testing.
• Familiarity with SSR/SSG/ISR, App Router, middleware, caching.

Responsibilities

• Review AI-generated React/Next.js code for quality and correctness.
• Produce reference implementations and step-by-step explanations.
• Assess rendering, routing, data fetching, hydration, and performance.

Skills

React

Next.js

Hooks & State

SSR/SSG/ISR

Testing

Performance

Code Review

CI/CD

English Proficiency

Security Basics

Education

Bachelor’s degree in CS/SE or related field

Tools

Jest

Vitest

Playwright

Cypress

React Testing Library

Job description

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; fact-check technical information; write high-quality explanations and model solutions that demonstrate best practices; and rate and compare multiple AI responses based on correctness and reasoning quality.

This fully remote, hourly paid contractor role is with SME Careers, a fast-growing AI data services company and subsidiary of SuperAnnotate that provides AI training data to many of the world’s largest AI companies and foundation model labs—where your frontend expertise will directly help improve the world’s premier AI models used by millions of developers worldwide.

Important

There is no immediate project for this role; however, if qualified, you will be among the first experts we reach out to when relevant opportunities arise. This will also provide you with access to future projects available through our expert network.

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.

Your Profile

• Bachelor’s degree or higher in Computer Science, Software Engineering, or a closely related technical field (or equivalent practical experience).
• 4+ years of professional experience building production web applications with React, including at least 2+ years with Next.js (or equivalent SSR framework experience).i>
• 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 (where applicable), route handlers, middleware, caching, and deployment patterns.
• Strong understanding of web fundamentals: HTTP, browser rendering, security basics (XSS/CSRF), cookies/sessions, and OAuth flows.
• Performance mindset: bundle optimization, code splitting, image optimization, Core Web Vitals, and profiling.
• Experience with testing and quality: Jest/Vitest, React Testing Library, Playwright/Cypress, linting, CI/CD.
• Minimum C1 English proficiency (written and spoken), with the ability to write clear technical explanations and follow detailed English-language guidelines.
• Proven experience conducting detailed code reviews and enforcing coding standards for maintainability, correctness, and accessibility.
• Previous experience with AI data training, annotation, or evaluating AI-generated technical content is a strong plus.
• Highly detail-oriented and systematic, with a methodical approach to evaluating reasoning quality and identifying subtle issues in complex UI code.