Browse current remote roles in AI training, model evaluation, RLHF, data annotation, and expert review. Filter by country, language, and specialty, then apply through OpenTrain.
Build machine learning systems in Python across data pipelines, model development, deployment, and monitoring. This part-time contract role requires 20+ hours weekly.
Posted Aug 2, 2026
Build and evaluate machine learning models with Python, MongoDB, and common ML libraries in a remote, part-time contractor role.
Posted Jul 3, 2026
Create, solve, review, and validate coding-heavy machine learning tasks involving models, training systems, inference, evaluation, and performance.
Posted Oct 16, 2026
Work as a Machine Learning Researcher creating, solving, reviewing, and validating coding-intensive machine learning tasks.
Posted Oct 23, 2026
Write challenging machine learning questions and assess AI-generated answers for accuracy, reasoning, and technical soundness.
Posted Sep 25, 2026
Create and verify computational machine learning and STEM problems using Python, statistics, SQL, and modern AI tools.
Posted Apr 5, 2026
Build and review machine-learning models, training pipelines, inference systems, and Python workflows remotely for about 15 hours per week.
Posted Oct 23, 2026
Complete coding-heavy AI training tasks involving machine learning models, Python, evaluation systems, and performance optimization.
Posted Nov 12, 2026
Review AI-generated Python code and machine learning workflows, assess quality against detailed rubrics, and guide remote contributors. This contractor role requires 20+ hours per week.
Posted Jul 9, 2026
Use machine learning and bioinformatics expertise to build models and reproducible pipelines for genomic, transcriptomic, proteomic, and multi-omics data.
Posted Nov 5, 2026
Build and evaluate machine learning models, improve performance, and document technical decisions in a remote project lasting 2 to 3 weeks.
Posted Nov 7, 2026
Create and solve machine learning research problems, then write reference answers that reveal flawed methods and weak conclusions. This remote contractor role requires at least 20 hours per week.
Posted Nov 6, 2026
Work remotely from the United States evaluating AI-generated content and creating expert training data in computer science and machine learning.
Posted Nov 5, 2026
Design and validate machine learning benchmarks, reference solutions, and grading rubrics across your research specialty. Remote, asynchronous contract work offers flexible 5 to 40 hours per week.
Posted Nov 7, 2026
Analyze machine learning data, metrics, model outputs, and benchmark failures as a remote MLE Bench Data Analyst. This three-month contractor role requires 20 hours per week.
Posted Jul 16, 2026
Design challenging machine learning tasks, build evaluation standards, and review AI-generated code, experiments, and analyses.
Posted Nov 9, 2026
Build multi-step AI agents for mathematical research, turning proofs and technical material into reliable software systems.
Posted Nov 11, 2026
Create technical problems and grading guides, then assess AI answers on machine learning inference and GPU kernels. Remote, flexible contractor work requires 20+ hours per week.
Posted Nov 5, 2026
Build multi-step AI agent systems for software engineering and mathematical reasoning datasets using Python and LLM orchestration.
Posted Oct 27, 2026
Build and test reproducible data science and machine learning challenges, including reference solutions and checks.
Posted Oct 13, 2026
Review AI-generated data science reasoning, code, and model outputs, write reference solutions, and compare responses for accuracy. This remote contractor role requires professional data science experience.
Posted Jul 8, 2026
Evaluate and improve AI-generated software across full-stack applications, APIs, and machine learning systems in a flexible contractor role. Help build code datasets and software benchmarks.
Posted Nov 6, 2026
Create rigorous biomedical signal processing and machine learning problems using clinical time-series data, then develop reproducible solutions in Python, MATLAB, or similar tools.
Posted Oct 17, 2026
Review AI-generated data science content, code, models, and QA work as a remote Data Scientist Team Lead. This contractor role requires 20+ hours per week.
Posted Jul 8, 2026
Use machine learning with atomistic, electronic, and structural materials data to support property prediction and materials discovery. This remote project-based role expects 10 to 20 hours weekly for 2 to 3 weeks.
Posted Nov 10, 2026
Evaluate AI-generated responses, create data science problems, and give structured feedback that improves model performance.
Posted Oct 10, 2026
Evaluate AI-generated research responses and create statistical training data using expertise in theory, methodology, computation, or applied modeling.
Posted Nov 5, 2026
Review AI-generated code, create coding datasets, and build Python tools that test software quality. This remote contractor role offers flexible part-time work of 20 or more hours per week.
Posted Nov 6, 2026
Create and verify realistic, computationally intensive data science problems using Python, SQL, statistics, machine learning, and GenAI. This contract offers flexible project work for experienced data science specialists.
Posted Apr 5, 2026
Evaluate and improve AI-generated code across Python backend systems, data pipelines, and machine learning infrastructure. This remote contract offers flexible work of 20 or more hours per week.
Posted Nov 6, 2026
Evaluate and improve AI-generated code across full-stack applications, Python and machine learning workflows, and multiple programming languages. This flexible contractor role requires 20+ hours per week and starts with a one-month engagement.
Posted Nov 6, 2026
Review and improve AI-generated software, create Python verification tools, and assess LLM coding performance. This contractor role offers flexible part-time work of 20 or more hours per week and is planned for one month.
Posted Nov 6, 2026
Work remotely as a Data Scientist/Analyst evaluating AI models, ranking responses, building training datasets, and analyzing results with Python. Choose 20, 30, or 40 hours per week with Pacific Time overlap.
Posted Jul 16, 2026
Create expert-level technical scenarios, reference solutions, and grading rubrics to evaluate AI reasoning. The role calls for 20+ hours a week.
Posted Nov 5, 2026
Build and improve automation workflows powered by large language models. You will refine prompts, review model outputs, and create evaluation criteria for practical communication and content tasks.
Posted Mar 29, 2026
Design and verify complex Python and SQL problems that test full-pipeline data science skills for advanced AI systems.
Posted Dec 3, 2025
Evaluate AI-generated code and build datasets for large language models as a senior software engineer. This contractor role requires 20+ hours weekly and covers Python, JavaScript, React, Node.js, and other production systems.
Posted Nov 6, 2026
Evaluate and improve AI-generated code, build Python verification tools, and help benchmark large language models. This contractor role requires 20+ hours per week and strong production software experience.
Posted Nov 6, 2026
Evaluate and improve AI-generated code across React, Node.js, Python, and other software stacks. This contract offers flexible availability of 10 to 40 hours per week.
Posted Nov 6, 2026
Create coding challenges and assess AI-generated software solutions for technical accuracy and good engineering practice. The role requires at least 20 hours per week.
Posted Nov 6, 2026
Review and rate AI-generated nutrition content as a remote US Medical Expert (Dermatology). This flexible, eight-week contractor assignment requires 20 or more hours per week and professional English fluency.
Posted Nov 13, 2026
Create technical scenarios, reference solutions, and clear feedback for AI model evaluation.
Posted Nov 7, 2026
Create and assess code datasets for LLM training, review Python and JavaScript solutions, and evaluate AI-generated code against production standards. This remote contractor role requires 20+ hours per week.
Posted Nov 6, 2026
Build reproducible reinforcement learning environments and software engineering tasks covering DevOps, CI/CD, and debugging.
Posted Nov 9, 2026
Annotate and review Portuguese text data for AI projects from a remote setting. This part-time contractor role requires professional Portuguese, fluent English, and language data experience.
Posted Jul 17, 2026
Evaluate AI-generated code, build Python verification tools, and benchmark software solutions in a contract role requiring 20+ hours per week.
Posted Nov 6, 2026
This remote contract role requires 20+ hours weekly, strong English, and at least two years of R experience.
Posted Jul 9, 2026
Test AI systems for jailbreaks, prompt injection, tool-use abuse, and other security weaknesses.
Posted Oct 28, 2026
Create self-contained research coding tasks for GPU kernels and ML systems, then review AI model outputs against technical standards.
Posted Nov 10, 2026
Evaluate AI models and agents using set scenarios, record findings, and submit evaluation datasets.
Posted Oct 16, 2026
Evaluate AI model responses, analytic cases, and failure modes in complex data pipelines.
Posted Oct 23, 2026
Evaluate AI-generated code, build Python verification tools, and improve programming datasets for AI models.
Posted Nov 6, 2026
Help improve large language models by creating analytical scenarios, checking claims, evaluating answers, and writing detailed feedback. This entry-level remote role requires 20+ hours per week, strong English skills, and careful logical reasoning.
Posted Oct 20, 2026
Review AI-generated full-stack code, apply clear evaluation guidelines, and explain your judgments. This role suits software engineers with Python, JavaScript, React, Node.js, and production experience.
Posted Nov 6, 2026
Use consumer lending expertise to evaluate AI responses, build scoring rubrics, and support benchmarks for credit products.
Posted Oct 29, 2026
Build challenging agentic benchmark tasks in Python, test AI reasoning, and analyze model behavior. This remote contract project requires English fluency and 20+ hours per week.
Posted Nov 6, 2026
Evaluate AI-generated code and build Python tools for large language model testing. This contractor role offers flexible part-time work for experienced software engineers.
Posted Nov 6, 2026
Design realistic tests for AI agents, define expected behavior, and review model outputs. This part-time contract requires 20 or more hours each week.
Posted Jan 13, 2026
Evaluate AI-generated nutrition content, food records, and dietary data for scientific accuracy, safety, and cultural relevance. This remote, flexible contractor assignment requires biology, nutrition, dietetics, food science, or related knowledge.
Posted Nov 13, 2026
Create realistic data science problems and detailed reference answers that test AI models on experiments, forecasting, segmentation, and predictive modeling. The role requires at least three years of data science experience.
Posted Nov 7, 2026
Evaluate and improve AI-generated code across Python, C/C++, Rust, Go, Java, and JavaScript. This contractor role offers flexible participation of 20 or more hours per week and starts with a one-month term.
Posted Nov 6, 2026
Create statistical modeling questions and review AI responses for sound reasoning in this remote, flexible project-based role.
Posted Nov 5, 2026
Evaluate large language models remotely in a flexible, part-time freelance role.
Posted Sep 30, 2026
Use your retail marketing and CRM experience to evaluate AI-generated content and create training data in a remote, flexible contract role.
Posted Nov 5, 2026
Review AI-generated merchandising and category management content using project guidelines and clear written feedback.
Posted Nov 5, 2026
Help evaluate AI on mechanical engineering by writing technical prompts, researching topics, and rating generated responses.
Posted Nov 5, 2026
Review and improve AI-generated code, build Python verification tools, and assess software engineering models across practical workflows. This remote contractor role requires at least 20 hours per week.
Posted Nov 6, 2026
Build and maintain Python infrastructure for LLM training and agent tooling, including secure sandboxes, CI/CD pipelines, and testing systems. This remote contract role requires at least 20 hours per week.
Posted Jul 25, 2025
Design challenging math problems, review language model solutions, and verify Python and Lean proofs in a remote contractor role requiring at least 20 hours per week.
Posted Jul 20, 2026
Test language models for harmful outputs, failed safeguards, and unexpected behavior as a remote Adversarial Prompt Expert.
Posted Nov 5, 2026
Evaluate AI-generated code, build Python verification tools, and assess software engineering solutions for AI training and benchmarking. This flexible contract engagement requires 20+ hours per week and may be extended after one month.
Posted Nov 6, 2026
Lead technical teams delivering supervised fine-tuning and RLHF work for language models. This contract role needs 8+ years in software engineering, 3+ years managing engineers, fluent English, and availability of 20+ hours each week.
Posted Jul 20, 2026
Use your retail operations experience to evaluate AI responses and create training data on store performance, reconciliation, inventory, and receiving.
Posted Nov 5, 2026
Review AI-generated dermatology text and images for accuracy, safety, and clinical usefulness. This contract role requires an MBBS, completed Dermatology residency, and five years of post-residency experience.
Posted Sep 2, 2026
Manage human data workflows for annotation, collection, processing, analysis, and quality. This contract role requires 20+ hours each week.
Posted Oct 9, 2026
Build Python agents and verification tools while assessing AI-generated code for quality, reliability, and scale. This contractor role calls for 20+ hours a week and at least three years of software engineering experience.
Posted Nov 6, 2026
Lead a 16-week remote AI training project covering multimodal annotation and chatbot evaluation for accounting and finance applications. Coordinate teams, quality, schedules, budgets, and client communication.
Posted Oct 31, 2026
Create challenging math questions and judge AI answers for correctness, proof quality, and logical rigor.
Posted Nov 7, 2026
Evaluate how well LLMs fix real software bugs by setting up repositories, reviewing tests, and running Python code locally. This part-time contract role requires 20+ hours each week.
Posted Jul 16, 2026
Create sports prompts, evaluate AI-generated answers, and build benchmark tests for an eight-week remote contractor assignment. You will assess accuracy, reasoning, completeness, and nuance across sports topics.
Posted Aug 11, 2026
Create, solve, review, and validate technical tasks used to evaluate AI systems.
Posted Nov 9, 2026
Build and review code used to train and evaluate AI models with Python and JavaScript or TypeScript. This contractor role requires 20+ hours each week and fluent English.
Posted Jul 17, 2026
Evaluate AI-generated business analysis responses, create difficult test prompts, and explain factual or reasoning errors. This part-time contractor role requires English fluency, and involves 20+ hours weekly.
Posted Oct 20, 2026
Build and test software engineering tasks from open-source Ruby repositories, then assess how well LLMs solve real bugs. This remote contractor role requires 20 or more hours per week and a four-hour overlap with PST.
Posted Jul 20, 2026
Evaluate large language model responses using business-analysis expertise, create challenging prompts, and write detailed feedback. This remote contract role expects 20+ hours weekly, excellent English, a relevant master’s degree, and three years of experience.
Posted Oct 20, 2026
Create and assess challenging AI tasks in computational life science, reviewing code, analyses, models, and experiments.
Posted Nov 9, 2026
Evaluate AI-generated code and build verification tools as a senior Python and FastAPI backend engineer. This contractor role requires 20 or more hours per week and offers an initial one-month engagement.
Posted Nov 6, 2026
Evaluate how AI uses personal context in Polish conversations, compare responses, and write detailed feedback. This remote contractor role requires at least 20 hours per week.
Posted Jul 20, 2026
Review and improve AI-generated code across Python, JavaScript, React, Node.js, C/C++, Java, Rust, and Go. This flexible contract runs 10 to 40 hours per week for an initial month.
Posted Nov 6, 2026
Evaluate and improve LLM-generated code across systems programming, infrastructure, backend development, and production software engineering. This flexible contractor engagement lasts one month, requires 20+ hours per week, and may be extended.
Posted Nov 6, 2026
Build Java backend components, evaluate large language model responses, and create training data in a remote, part-time contractor role. The work requires strong Java, English communication, and technical judgment.
Posted Jul 17, 2026
Evaluate large language model responses, write computer science prompts, and help improve AI systems.
Posted Nov 5, 2026
Evaluate AI model responses on equity valuation, sector analysis, earnings estimates, and investment theses.
Posted Nov 6, 2026
Evaluate personalized AI responses in Arabic by writing multi-turn prompts, comparing outputs, and explaining your judgments. This remote contractor role requires at least 20 hours per week.
Posted Jul 16, 2026
Evaluate Hindi AI personalization responses by writing prompts, rating model output, and explaining your decisions. The contractor role requires 20+ hours each week.
Posted Jul 16, 2026
Create and review research coding tasks that test AI models in robotics and reinforcement learning. This remote contract role suits researchers with published work, released code, and strong hands-on experience.
Posted Nov 9, 2026
Review and improve AI-generated C and C++ code, develop backend components, and guide technical work on dialogue-agent systems. This contract role offers part-time work of 20 or more hours per week.
Posted Jul 17, 2026
Evaluate coding agents on real software tasks, run and review their code, and explain defects.
Posted Nov 7, 2026
Create realistic consulting scenarios, review AI-generated answers, and give structured feedback based on real consulting practice.
Posted Oct 10, 2026
Create and assess code datasets for AI systems, reviewing generated implementations for correctness, performance, scalability, and reliability. This contract role requires at least three years of software engineering experience and 20+ hours a week.
Posted Nov 6, 2026
