Find remote AI training and data labeling jobs open to applicants in Japan.
About OpenTrain OpenTrain is the centralized, open platform where AI training and data-labeling freelancers find work, consolidate opportunities across platforms, and build a unified AI training portfolio they control.…
Posted Oct 24, 2026
About OpenTrain OpenTrain is the centralized, open platform where AI training and data-labeling freelancers find work, consolidate opportunities across platforms, and build a unified AI training portfolio they control.…
Posted Oct 24, 2026
Design realistic AI evaluation tasks based on contract review, due diligence, compliance, and risk analysis. Earn $45 to $90 per hour remotely with flexible project work.
Posted Oct 24, 2026
Design realistic finance and accounting tasks that test AI on FP&A, reporting, audit, and reconciliation work. This remote, part-time contract role pays $40 to $90 per hour, with fewer than 20 hours per week.
Posted Oct 24, 2026
Review written content and large language model answers, research claims, solve analytical problems, and explain corrections. This entry-level contract role is open worldwide for English-language writers available 20 or more hours per week.
Posted Oct 24, 2026
Review AI-generated military and defense scenarios for accuracy, realistic assumptions, civilian protection, and sound reasoning. This part-time contractor role pays $40 to $80 per hour and requires professional defense or conflict analysis experience.
Posted Oct 24, 2026
Review AI-generated ground-combat scenarios, tactical plans, weapons use, and targeting for realism and alignment with military rules. This remote part-time contractor role pays $40 to $80 per hour and requires Army combat-arms experience.
Posted Oct 24, 2026
Review AI-generated military scenarios for tactical accuracy, operational realism, and sound decision-making. Use your military operations experience to give clear feedback, with pay of $40 to $80 per hour.
Posted Oct 24, 2026
Review AI-generated military scenarios for operational realism, weapons employment, and compliance with Rules of Engagement and the Law of Armed Conflict. This remote, part-time contractor role pays $40 to $80 per hour.
Posted Oct 24, 2026
Review AI-generated fighter aviation scenarios and responses for tactical accuracy, realistic mission planning, sound reasoning, and alignment with military procedures. This part-time contract role pays $40 to $80 per hour.
Posted Oct 24, 2026
Review AI-generated military scenarios for tactical realism, mission execution, and procedural accuracy. This remote contractor role pays $40 to $80 per hour and requires Special Operations experience.
Posted Oct 24, 2026
Review transportation, cargo, logistics, and warehousing scenarios to help improve AI systems. This remote contractor role pays $30 to $70 per hour and requires strong English and industry experience.
Posted Oct 24, 2026
Work on AI training projects that test Rust backend systems, APIs, concurrency, infrastructure, and reliability. This remote contractor role offers flexible work of about 15 hours per week.
Posted Oct 24, 2026
Review and validate machine learning engineering tasks involving Python, models, numerical computing, and system performance. This remote contractor role offers $60 to $120 per hour equivalent, paid per task that meets the project specifications, with about 15 flexible hours per week.
Posted Oct 23, 2026
Build and validate machine-learning models, training pipelines, inference systems, and numerical methods remotely for about 15 flexible hours per week. Compensation is $60 to $120 per hour equivalent, paid per task that meets the project specifications.
Posted Oct 23, 2026
Evaluate AI-generated intelligence responses, test source handling and analytic reasoning, and document model limits. This remote, part-time contractor role pays $30 to $80 per hour and requires English fluency.
Posted Oct 23, 2026
Review AI-generated answers on military support, international humanitarian law, and the law of armed conflict. This remote contractor role pays $70 to $120 per hour and requires authoritative military-legal judgment.
Posted Oct 23, 2026
Review AI-generated responses about civilian protection, humanitarian action, and International Humanitarian Law. This part-time contractor role pays $30 to $70 per hour and needs strong humanitarian judgment, with no prior AI experience required.
Posted Oct 23, 2026
Assess HUMINT interviews for AI training by reviewing questioning, reliability, behavioral cues, and emotional factors. This remote contractor role pays $30 to $80 per hour and requires less than 20 hours per week.
Posted Oct 23, 2026
Lead a team of technical trainers creating and evaluating terminal-based materials science tasks for AI training. Review scientific code, simulations, automated tests, and research workflows in a four-week remote contract role.
Posted Oct 23, 2026
Lead a technical pod creating and reviewing terminal-based computational materials science tasks for AI training. This four-week remote contract requires advanced materials expertise, programming skills, and Linux experience.
Posted Oct 23, 2026
Lead evaluation work for AI systems using computational materials science tasks, simulations, and reference solutions. Review technical outputs, explain your judgments, and help improve model behavior.
Posted Oct 23, 2026
Create challenging prompts and evaluate large language model responses for accuracy, reasoning, and usefulness. This worldwide, part-time role requires strong English writing, analytical thinking, and team management experience.
Posted Oct 23, 2026
Lead reviews of terminal-based mathematics tasks for correctness, reproducibility, challenge, and reliable grading. This remote contractor assignment includes mentoring trainers and improving benchmarks across numerical, applied, and computational mathematics.
Posted Oct 23, 2026
Review single-turn and multi-turn AI conversations for safety, accuracy, and policy compliance. This worldwide, entry-level contract role requires professional English, careful judgment, and at least 20 hours per week.
Posted Oct 23, 2026
Review language model responses, research factual claims, and write clear feedback that helps improve AI systems. This part-time contract role is open worldwide and requires fluent English, strong reasoning, and 20+ hours per week.
Posted Oct 23, 2026
Listen to short AI-generated audio clips, identify instrument families and specific instruments, and apply consistent annotation guidelines. This worldwide, part-time contract role requires 20+ hours weekly and strong music experience.
Posted Oct 23, 2026
Evaluate large language model behavior in complex data pipelines, write structured test cases, and improve analytic methods as a remote contractor earning $60 to $100 per hour.
Posted Oct 23, 2026
Review military scenarios and AI-generated responses using hands-on fires and targeting expertise. This part-time contract role pays $60 to $110 per hour and is open to candidates in several countries.
Posted Oct 23, 2026
Evaluate AI responses to advanced cyber threat scenarios, including nation-state operations, surveillance, attribution, and intrusion-adjacent cases. This part-time contractor role pays $70 to $110 per hour.
Posted Oct 23, 2026
AI training is the human work used to prepare and review examples for artificial-intelligence systems. Depending on the assignment, work may involve labeling images or video, transcribing or recording audio, writing or rating model responses, evaluating search results, translating text, reviewing code, or applying subject-matter knowledge. For roles open to applicants located in Japan, read each posting to understand the specific task and requirements.
OpenTrain is the hiring organization for the public roles available through OpenTrain. Candidates apply through OpenTrain, and successful candidates may be placed or referred to the client whose project they will support. Because eligibility and other terms can differ by assignment, use the individual posting as the source for role-specific information.
