Senior Software Engineer for AI Training

About OpenTrain

OpenTrain AI is the #1 platform for finding and building careers in AI training and data labeling. We connect experts with projects that help shape how modern artificial intelligence systems learn, reason, and perform.

• Free to create an OpenTrain account
• Remote opportunities across the world
• Flexible projects for contributors at different experience levels

About AI Training and Evaluation

AI training is the human side of building artificial intelligence. Software experts create examples, test model outputs, and evaluate technical solutions so AI systems can become more capable on real-world engineering tasks.

• Work directly with challenging coding and software engineering problems
• Help evaluate AI performance on debugging, development, and reasoning tasks
• Apply practical expertise to a fast-growing, cutting-edge field

The Role

OpenTrain AI is seeking experienced Senior Software Engineers for a contractor project focused on training and evaluating next-generation AI systems. You will create challenging, reproducible environments that test AI models on real-world engineering work, including bug fixing, feature development, code refactoring, and performance optimization.

Previous AI experience is not required. This role is designed for experts whose software engineering knowledge, problem-solving ability, and technical judgment can help produce high-quality training and evaluation data.

• Role: Senior Software Engineer
• Work type: Contractor and part-time
• Location: Remote and worldwide
• Availability: Approximately 15 hours per week, under 20 hours expected
• Project duration: Expected to be under 1 month
• Openings: 100

What You'll Do

You will contribute expert-level code, technical reasoning, and evaluation materials across software engineering workflows. The work may involve creating reference solutions, analyzing difficult defects, and reviewing submissions for technical quality.

• Develop expert-level code samples, debugging strategies, and engineering solutions
• Work with Python, Java, Rust, Go, C++, and TypeScript
• Analyze and resolve complex software defects and performance bottlenecks
• Implement robust, scalable, and maintainable features
• Refactor legacy codebases and improve code quality and efficiency
• Create reproducible environments and high-quality reference solutions
• Document technical reasoning, solution approaches, and implementation decisions
• Review and validate technical submissions for accuracy, quality, and clarity
• Complete computer code programming, evaluation rating, text generation, coding, and reasoning verification tasks

Requirements

This is an expert-level opportunity for software engineers with significant hands-on experience and strong technical judgment. Your engineering expertise matters more than prior work in AI.

• Significant hands-on experience with Python, Java, Rust, Go, C++, or TypeScript
• Strong understanding of algorithms, data structures, and software engineering principles
• Proven ability to debug complex systems and resolve challenging technical issues
• Experience with codebase refactoring, optimization, and legacy system modernization
• Demonstrated ability to deliver high-impact features from development through completion
• Strong technical documentation and communication skills
• Experience with computer code programming labeling workflows
• Software engineering and AI systems evaluation subject matter expertise
• Fluent English proficiency and comfort working in English
• Previous AI experience is not required

Compensation and Availability

Compensation ranges from $50 to $100 USD per hour, with an hourly rate of $75 listed for the opportunity. Payment is output-based: experts are paid per completed task that meets project specifications. The time required may vary based on experience and workflow, and minimum submission requirements apply.

• Compensation: $50–$100 per hour
• Listed hourly rate: $75 USD
• Expected commitment: Approximately 15 hours per week
• Weekly availability: Under 20 hours
• Contractor engagement
• Remote, worldwide participation

Start Timeline

Positions are typically filled within 48 hours. Selected candidates should be prepared to begin their first tasks within 24–48 hours after completing onboarding.

• Apply when ready to use your engineering expertise in AI evaluation
• Complete onboarding if selected
• Be prepared to start initial tasks within 24–48 hours after onboarding