Senior JavaScript/React Engineer, AI Training (US-Based)

Create and review software engineering examples used to train and benchmark AI models. You will build or correct code, assess AI-generated implementations, and explain your technical judgments.

• Work with JavaScript, React, Python, C/C++, Rust, Go, and Java.
• Evaluate code for correctness, efficiency, scalability, reliability, and performance.
• Assess model work across prototyping, architecture, API design, production implementation, monitoring, and maintenance.
• Build agents and checks to test systems-level and infrastructure code, identify recurring errors, and support structured evaluations.

Hours, location, and requirements

• Hours: 20 or more per week, with a flexible schedule.
• Location: Candidates must be based in the United States.
• Engagement: Contractor role, initially one month, with possible extensions based on performance and fit.
• Bring strong skills in systems programming, infrastructure, or backend development, along with JavaScript and React experience.
• You should be able to build and deploy scalable production software and assess architecture, design, debugging, and code quality.
• Strong written and spoken communication skills are required. A computer science background and experience shipping high-impact products are helpful.

How to apply

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

About AI training work

AI training work uses examples and human reviews to help AI systems learn. Software engineers contribute the technical judgment needed to assess whether code is correct, reliable, and efficient.