Looking for Computer Science work supporting the development of AI systems? OpenTrain is the hiring organization for roles presented on OpenTrain, and candidates apply through OpenTrain. OpenTrain may place or refer successful candidates to the client whose project they will support.
Help train advanced AI models by building coding test environments, creating reference solutions, and evaluating software engineering work. This remote contractor role offers approximately 15 hours per week and an ideal rate of $50-$100 per hour.
Posted Sep 7, 2026
Build reproducible reinforcement learning environments and reference solutions for challenging software engineering tasks. Use your coding, debugging, and performance optimization expertise on flexible, remote AI training work.
Posted Sep 7, 2026
Help train next-generation AI systems by creating software engineering challenges, reference solutions, and expert code evaluations. This remote contractor role offers output-based compensation of $50-$150 per hour and requires under 20 hours weekly.
Posted Sep 7, 2026
Use advanced software engineering skills to build reinforcement learning environments and solutions that test how AI models solve complex coding problems. This remote contractor role offers output-based compensation of $50 to $100 per hour for under 20 hours weekly.
Posted Sep 7, 2026
Design and deploy multi-step AI agent systems for advanced mathematical reasoning using Python, LLM orchestration, structured outputs, and tool integration. This remote four-week contractor assignment includes 40 hours per week and PST overlap.
Posted Sep 7, 2026
Build and deploy agentic AI systems for high-impact U.S. Government missions, from prototype through production. This expert contractor role requires strong Python, LLM, data pipeline, and ML infrastructure experience, with a commitment of at least 20 hours weekly for 6+ months.
Posted Sep 7, 2026
Create and record realistic NetBeans Java development tasks, from JDK setup and debugging to Maven or Gradle troubleshooting. This remote contractor role is open to contributors in Bangladesh, India, and Pakistan and pays up to $20 per hour.
Posted Sep 5, 2026
Design realistic MongoDB database workflows, prepare sample data, and record reproducible tasks that help train advanced AI models. This remote contractor role offers up to $20 per hour for contributors in Bangladesh, India, and Pakistan.
Posted Sep 5, 2026
Create realistic Eclipse IDE and Java development tasks, prepare technical environments, and record practical workflows that help train AI systems. This remote contractor role offers up to $20 per hour and requires 20+ hours weekly.
Posted Sep 5, 2026
Build and operate GPU infrastructure and production LLM serving systems on Google Cloud Platform. This remote, two-month contractor role includes an 8-hour daily commitment and Pacific Time overlap.
Posted Sep 4, 2026
Author rigorous materials science coding tasks that train and evaluate AI models. Use Python, scientific computing, and expert judgment in an 8-week remote contractor assignment.
Posted Sep 3, 2026
Build rigorous biology coding problems, verified Python solutions, and discriminative tests that help evaluate advanced AI models. This intermediate contractor role offers 20+ hours per week for qualified biology experts in selected countries.
Posted Sep 3, 2026
Create rigorous chemistry and Python programming problems, verified solutions, and discriminative tests for training and evaluating frontier AI models. This remote eight-week contractor assignment requires 40 hours weekly and four hours of PST overlap.
Posted Sep 3, 2026
Create rigorous scientific programming problems, verified Python solutions, and tests that evaluate frontier AI models. This remote, eight-week contractor assignment requires advanced STEM expertise and is open to candidates in 12 countries.
Posted Sep 3, 2026
Review code, architecture proposals, and technical documents to help train AI systems, while earning an advertised $90-$140 per hour remotely. This flexible contractor role is open worldwide and does not require prior AI training experience.
Posted Sep 3, 2026
Use your frontend engineering expertise to evaluate code, architecture, and technical decisions that help improve AI systems. This remote contractor role offers $90-$140 per hour and requires 20+ hours each week.
Posted Sep 2, 2026
Earn $50–$100 per hour as a remote STEM Expert helping evaluate AI-generated scientific solutions. Use your expertise and Python skills on flexible, part-time technical reasoning tasks.
Posted Sep 2, 2026
Create and evaluate realistic software-engineering benchmarks for coding agents using production-like repositories, secure coding, and rigorous testing. This fully remote contractor assignment runs 4 to 8 weeks.
Posted Sep 2, 2026
Use your frontend and backend expertise to build reproducible environments, golden solutions, and evaluations that help AI models solve real software problems. This remote contractor role pays $65 to $120 per hour.
Posted Sep 1, 2026
Use your QA engineering expertise to test, rate, and improve technical outputs used in AI evaluation projects. This remote expert contractor role offers $60-$112 per hour for an expected 3 to 6 months.
Posted Sep 1, 2026
Audit repository-level software-engineering benchmark tasks that train and evaluate AI models. Review patches, tests, Docker execution, and grading integrity in a remote contract role paying $70 to $90 per hour.
Posted Sep 1, 2026
Audit applied machine-learning tasks for sound experiment design, reliable evaluation, and evidence-backed conclusions. This remote US contractor role pays $70-$90 per hour and requires 20+ hours weekly.
Posted Sep 1, 2026
Review complete AI-assisted coding sessions for correctness, reasoning quality, workflows, and engineering practices. This remote U.S. contract role pays $70-$90 per hour and requires three years of software development experience.
Posted Sep 1, 2026
Use your software testing expertise to evaluate AI-generated approaches, identify defects, and create high-quality training data. This contract opportunity offers $90–$175 per hour for experienced QA professionals with prior human data experience.
Posted Aug 31, 2026
Evaluate Python coding agents by reviewing trajectories, tool use, code changes, execution results, and final outputs. This remote contractor role offers 20+ hours per week for experienced software engineers with AI or LLM expertise.
Posted Aug 30, 2026
Use your C++ and software engineering expertise to evaluate how language models understand and fix real code. Work remotely with GitHub repositories, Docker, testing, and LLM evaluation through OpenTrain.
Posted Aug 30, 2026
Join a 3- to 6-month remote project as a Video Annotation Expert, reviewing action and hand-pose data to improve next-generation AI systems. Earn $15-$20 per hour as a contractor.
Posted Aug 29, 2026
Review and improve AI-generated technical content covering code, systems, databases, networking, and security. This remote contractor role offers up to $20 per hour and requires 20+ hours weekly.
Posted Aug 29, 2026
Use your backend engineering skills to build reproducible environments, solve software problems, and create reference solutions that help train AI models. This remote contract pays $60 to $120 per hour and is expected to run for 3 to 6 months.
Posted Aug 29, 2026
Conduct structured interviews with senior technical experts in GPU kernels, security research, and ML compilers. This remote U.S. contract role pays $50-$60 per hour for about 10 weekday hours per week.
Posted Aug 28, 2026
Computer Science subject-matter work in AI training can involve reviewing or writing code, judging the quality of technical model responses, evaluating search results, labeling data, or applying computing knowledge to other examples used to prepare and assess AI systems. The exact responsibilities depend on the project. Read each individual live posting carefully for its stated scope, qualifications, eligibility, pay, hours, schedule, location rules, and client-specific requirements.
OpenTrain is the hiring organization for the public roles on OpenTrain. Candidates apply through OpenTrain, and successful candidates may be placed with or referred to the client whose project they will support. Hiring details are specific to each live posting, so review the relevant listing for the requirements and terms attached to that opportunity.
