Open AI training and model evaluation roles that call for Data Annotation expertise, gathered from 9 platforms. Part of Data & Machine Learning.
Pay figures cover the 218 open jobs that publish an hourly rate in USD. They are published rates, not a guarantee of income. Last checked on October 8, 2026.
This remote, hourly contract involves checking and assessing geographic information produced by AI systems, such as addresses, place names, and location search results. It suits people who know their own city or region well and can spot errors in digital maps, with no GIS or geography degree needed.
This contract role asks mathematics experts to label, organize and check math content that trains AI models. The work is remote and asynchronous, with a minimum weekly commitment. It suits people with strong math backgrounds in research, teaching or applied problem solving.
This freelance contract is for PhD-level mathematicians who will evaluate and improve how AI systems handle mathematical reasoning. The work covers writing and reviewing advanced problems, checking AI-generated proofs and calculations, and organizing mathematical content for training datasets. It suits holders of a doctorate in mathematics or a closely related field who can work independently and remotely on their own schedule.
This contract role asks security practitioners to build and check realistic scenarios about networks, endpoints, and email threats for training AI systems. The work centers on reviewing firewall settings, EDR telemetry, and infrastructure cases to explain what failed and why. It suits people with several years of hands-on enterprise security operations experience.
This remote contract role asks analysts to bring offensive security knowledge to AI development without writing exploits or taking part in live intrusions. The work centers on analyzing attack paths and adversary behavior in structured scenarios, then producing labeled reasoning data and written assessments that help AI systems reason about cybersecurity. It suits experienced security professionals who can explain how real attacks unfold in production environments.
This contract role asks physicists with a PhD to judge and improve the physics material used to train advanced AI systems. The work covers writing hard problems, checking AI-generated solutions for errors, and labeling concepts so models learn the structure of the field. It suits remote experts who can work independently and do not need prior AI experience.
This contract role asks a physics specialist to label and organize physics material used to train AI models. The work includes reviewing AI-generated solutions to physics problems and helping build training datasets across topics and difficulty levels. It suits candidates with research, teaching or applied problem-solving experience in physics.
This role leads a team of labelers and reviewers on a Polish audio transcription project for AI training. The work centers on setting linguistic standards, answering guideline questions, and auditing output to keep transcription quality consistent. It suits native Polish speakers with strong language judgment and some experience guiding or coordinating other annotators.
This remote contract leads a team of Polish labelers and reviewers on an audio transcription project that trains AI to understand spoken language. It is aimed at a native Polish speaker with linguistic judgment and experience guiding a team toward consistent, high-quality output.
This remote contract role asks you to forecast the likelihood of geopolitical, financial, and industry events and to explain each estimate in writing. The work helps AI research teams build models that reason more accurately about uncertainty. It suits analytically minded people who follow the news closely and think in probabilities.
This contract role centers on building the Python infrastructure that AI labs use to prepare and assess training data, including data pipelines, annotation tools and evaluation systems. It is aimed at senior engineers with deep production Python experience who can design distributed systems and lead architecture decisions.
This contract role centers on building and tuning high-performance Rust systems that support AI model development, including data pipelines, annotation tooling and evaluation infrastructure. It is aimed at senior engineers with deep Rust expertise who want to work fully remotely alongside research and engineering teams.
This remote, hourly contract role involves checking AI-written product reviews, comparisons, and recommendations for accuracy, honesty, and usefulness. It suits people who know online shopping well and have a critical eye, and no retail or AI background is needed.
This contract role centers on building Python systems that power data pipelines, evaluation harnesses and annotation tooling for AI model development. It suits senior Python engineers who can work remotely on part-time hourly engagements alongside research and engineering teams.
This contract role involves building and tuning Python systems that feed data pipelines, annotation tools and model evaluation workflows for AI teams. It suits senior engineers who can work full-stack and backend, with a strong focus on reliability and clean, well-tested code.
This contract role asks active retail investors and traders to share their hands-on market experience with an AI research team. The work covers reviewing and labeling trading content, and writing explanations of how everyday investors think about risk and trade execution. It suits people who regularly trade stocks, ETFs, crypto, or derivatives and can explain their reasoning clearly in writing.
This contract role calls for a senior C engineer to build and tune the data pipelines, annotation tools and evaluation systems used to train AI models. The work is fully remote with flexible hours of 20 to 40 hours a week, and it suits engineers with long experience in scalable backend services.
This remote, hourly contract involves labeling and reviewing clinical data, including electronic health records, clinical notes, lab results and medical codes, to help train AI systems used in healthcare. Work includes quality assurance checks, flagging ambiguous cases and giving expert feedback on model outputs. It is aimed at clinicians, health informaticists and healthcare data professionals who can work independently on a flexible schedule.
This contract role asks engineers to write and review step-by-step reasoning traces that show how a language model should plan, use tools, and reach decisions. The output becomes training data meant to make AI systems more reliable on complex, real-world tasks. It suits experienced machine learning engineers and researchers who can work remotely and on their own schedule.
This freelance role asks senior machine learning practitioners to write step-by-step reasoning traces that record how an expert plans, uses tools, and decides through hard technical problems, so that large language models learn to reason the same way. It suits people with deep ML or AI systems backgrounds who can explain their thinking clearly and work independently on open-ended tasks.
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FAQ
242 Data Annotation AI training jobs are open on SideHustler today. 3 were posted in the last 7 days. Listings are rechecked against the official postings: the latest check on this list was on October 8, 2026.
Among the 218 open roles that publish an hourly rate in USD, pay runs from $6 to $400 per hour, with a median of $60. These are the rates the platforms publish, not a guarantee of income or hours.
Alignerr (93), micro1 (82), Mercor (40), xAI (17), DataAnnotation (3), Mindrift (2), Terac (2), Vetto (2) and Handshake AI (1). You apply on the platform itself, which handles screening, contracts and payment.
The most requested areas of expertise on these listings are Data Annotation, AI Evaluation, Content Annotation, Multilingual Expertise, Audio Transcription. Each listing states its own requirements.
Apply now opens the official posting on the platform, where you complete the application. You need no account on SideHustler. To see which roles fit your background first, add your resume and every open job is scored against your profile.
