Backend Engineering Specialist - Freelance AI Trainer Project

agency· Engineering & Technology
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📍 United States of America

About this role

Are you an experienced Backend Engineer eager to shape the future of AI? Large-scale language models are evolving rapidly, moving beyond simple chatbots into powerful engines of research, learning, and applied problem-solving. With high-quality training data, tomorrow’s AI can provide more accurate, practical, and innovative solutions across industries. That training data begins with you—your expertise will help power the next generation of AI.

We’re looking for a highly skilled Backend Engineering specialist who can bring technical depth, coding expertise, and architectural insight to training data. You’ll work with cutting-edge AI tools, evaluate and refine code outputs, and provide expert feedback on correctness, efficiency, scalability, and best practices in backend engineering.

On a typical day, you will review and annotate AI-generated code, assess outputs for logical and structural soundness, identify and document error patterns, and collaborate with our team to refine prompts, evaluation methods, and engineering guidelines.

Proficiency in backend technologies is required, including strong experience with languages such as Python, Java, Go, or C++; frameworks such as Django, Spring, or Express; and databases (SQL/NoSQL). Experience with API design, distributed systems, cloud services, or containerization (Docker/Kubernetes) is a strong plus. Clear communication skills, problem-solving ability, and attention to detail are essential.

Ready to channel your backend engineering expertise into building the AI tools of tomorrow? Apply today and help train the model that will support developers and organizations worldwide.

We offer a pay range of $8 to $65 per hour, with the exact rate determined after evaluating your experience, expertise, and geographic location. Final offer amounts may vary from the pay range listed above. As a contractor you’ll supply a secure computer and stable internet connection; company-sponsored benefits such as health insurance and PTO do not apply.

Job title: Backend Engineering Specialist – AI Trainer
Employment type: Contract
Workplace type: Remote
Seniority level: Mid-Senior

Frequently Asked Questions

Is the salary disclosed for the Backend Engineering Specialist - Freelance AI Trainer Project position at agency?
The salary for this Backend Engineering Specialist - Freelance AI Trainer Project role at agency is not publicly listed. Click "Apply Now" to learn more about the compensation package on their official careers page.
Where is the Backend Engineering Specialist - Freelance AI Trainer Project position at agency located?
This Backend Engineering Specialist - Freelance AI Trainer Project role at agency is based in United States of America. The position is listed as on-site or hybrid. Check the full job description or apply directly to confirm the work arrangement.
Which team or department does the Backend Engineering Specialist - Freelance AI Trainer Project at agency belong to?
This Backend Engineering Specialist - Freelance AI Trainer Project position is part of the Engineering & Technology department at agency. See the full job description for more information about the team structure and responsibilities.
How do I apply for the Backend Engineering Specialist - Freelance AI Trainer Project position at agency?
Click the "Apply Now" button on this page. You will be redirected to agency's official application portal hosted on greenhouse where you can submit your application directly.
When was the Backend Engineering Specialist - Freelance AI Trainer Project job at agency posted?
This Backend Engineering Specialist - Freelance AI Trainer Project position at agency was posted on Aug 25, 2025. Apply as soon as possible — early applications are often reviewed first.
Backend Engineering Specialist - Freelance AI Trainer Project
agency
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