Mid Level Full-Stack Engineer at AfterQuery

Mid-Level Full-Stack Engineer | $60–$100/hr | Worldwide Remote | Contractor

Join AFTERQUERY and help shape the future of AI by building real, production-quality applications that serve as training examples for advanced AI models. Each application you create becomes a meaningful part of a growing AI training dataset — your code directly influences how AI learns to build software.

What You'll Do

• Design and develop complete, end-to-end full-stack applications across a variety of domains and use cases
• Demonstrate diverse architectural patterns, features, and implementation strategies through functional software
• Build efficient data flows connecting frontend interfaces, caching layers, and relational databases
• Deliver clean, maintainable, and production-ready code that serves as a high-quality reference for AI training

Required Skills & Qualifications

• Next.js: Strong proficiency in building modern, performant frontend applications with server-side rendering and API routes
• Redis: Experience with caching, session management, and real-time data handling
• SQL Databases: Solid experience with PostgreSQL, MySQL, or similar — including schema design, querying, relationships, and optimization
• Full-Stack Architecture: Ability to integrate Next.js, Redis, and SQL databases effectively in production environments
• Tailwind CSS: Experience rapidly building responsive, custom UIs using utility-first styling
• 2+ years of relevant full-stack development experience

Compensation

$60 – $100 per hour, depending on experience and scope of work.

This is a contractor role open to candidates worldwide. If you're passionate about building great software and want your work to have a lasting impact on AI development, we'd love to hear from you.