Mid-Level Full-Stack Engineer (English)

Build complete, production-quality applications from scratch. The finished software will serve as examples for training AI models.

• Create dashboards, management systems, workflow tools, and data-driven platforms.
• Build features such as authentication, data management, real-time functions, reporting, and business logic.
• Connect frontend interfaces with caching services and SQL databases.

What it pays and takes

• Pay: $80 per hour.
• Hours: At least 20 hours per week.
• Location: Remote, open to candidates in supported countries.
• Work type: Contract, part time.
• Language: Fluent in English.
• Skills: Strong Next.js skills, including server-side rendering and API routes; Redis experience with caching, session management, and real-time data; and SQL database skills with PostgreSQL, MySQL, or similar.
• You should be able to design database schemas, queries, relationships, and performance improvements, and build applications that connect frontend, caching, and database layers.
• Experience with Tailwind CSS and responsive interface development using utility classes is required.

How it works

Apply on OpenTrain with your resume, then complete your application on the hiring site.

About AI training work

AI training is the human work of preparing examples that help AI models learn. Software engineers contribute working applications that show models how complete software can be designed and built. OpenTrain is a free platform where people find AI training projects, build a profile, and apply.