Create research-level analytical and physical chemistry problems using laboratory measurements, spectra, kinetics, and Python-based analysis. This flexible remote role pays $50 per hour and is open to candidates in eligible countries.
Evaluate AI answers about QuickBooks, bookkeeping, financial reporting, reconciliations, and small-business accounting. This fully remote contract role requires 20+ hours per week and strong accounting experience.
Build thermal and CFD simulation workflows for PCB assemblies and electronic systems using OpenFOAM, Gmsh, and Python. This remote contract requires 20+ hours each week and is open worldwide.
Review and rate AI answers about bookkeeping, reporting, reconciliations, audits, and small-business accounting. This remote freelance project requires QuickBooks Online experience, strong English, and 20+ hours per week.
Create and evaluate engineering simulation benchmarks for AI agents using Python and open-source tools. This remote contractor engagement lasts up to 12 weeks, with part-time work accepted and required Pacific Time overlap.
Perform electromagnetic and signal integrity simulations for high-speed PCB designs, analyze interconnect behavior, and build Python workflows. The project is worldwide, requires English, and supports 20+ hours per week for about 13 weeks.
Create and review graduate-level biology problems that test AI systems on experiments, data, figures, sequences, structures, and scientific reasoning. This remote contractor assignment requires at least 20 hours per week and professional English fluency.
Review and correct Welsh conversational audio transcripts for a 1,350-hour AI voice dataset. Pay is $30 to $35 per hour, with full-time weekday work from mid-November through December 31, 2026.
Work remotely as a medical imaging clinician annotator, outlining image regions and checking metadata for a large medical image dataset. Pay is $30 to $55 per hour for less than 20 hours per week.
Review AI project tasks, outputs, verifiers, rubrics, and delivery quality as a remote QC Packaging Engineer. The 3-month contractor assignment requires 20 hours per week and English fluency.
Build and test vulnerable and patched generative AI applications, trace data and action flows, and evaluate authorization, prompt injection, and tool abuse. This worldwide contractor role requires 20+ hours per week and strong application security experience.
Review AI-generated text, images, and diagrams using knowledge from your academic discipline. Remote, asynchronous project work pays $100 per hour for eligible undergraduate students.
Work as a Software Engineering Expert on project-based coding, debugging, code review, and implementation work at $75 per hour. Accepted projects require 10 to 20 hours per week for 2 to 3 weeks.
Work asynchronously on software projects involving coding, debugging, code review, and technical documentation. This contract role pays $75 per hour for a flexible 2 to 3 week engagement, with applications starting through OpenTrain.
Create and validate research-grade tasks that test AI models on real computational science problems. This flexible contractor role pays $100 per hour and requires hands-on research experience plus working Python skills.
Create research-grade evaluation tasks that test AI models on real scientific computing problems. This remote, flexible role pays $75 per hour and suits researchers who use Python.
Record a short script in English with a Russian-influenced accent for speech and voice data collection. The role pays $30 per hour and requires a working microphone and the ability to follow English instructions.
Use advanced research skills to evaluate AI models, review datasets, design experiments, and synthesize technical findings. This remote project pays $150 per hour for about 10 to 20 hours weekly over 2 to 3 weeks.
Grave um roteiro curto em inglês com sotaque português para um único envio de áudio, que leva cerca de 15 minutos e paga $30 por hora. Você precisa de fluência em português, capacidade de seguir instruções em inglês e um dispositivo com microfone.
Build and review research coding tasks for AI model evaluation in areas such as congestion control, datacenter networking, programmable networks, and cluster scheduling. This remote contract work pays $50 per hour and follows an asynchronous schedule.
Work remotely on mechanical designs, CAD models, drawings, and engineering analysis for AI training projects. The role runs asynchronously for 2 to 3 weeks, with 10 to 20 hours per week for accepted projects and pay of $88 per hour.
Create research coding tasks and review AI model outputs in parallel algorithms and high-performance computing. This remote contract work pays $200 per label and fits around ongoing research.
Use your graduate-level research expertise to evaluate and explain written, visual, and discipline-specific AI content. This remote project work pays $100 per hour and offers up to 10 hours per week during each project window.
Create self-contained research coding tasks for GPU kernels and ML systems, then review AI model outputs against technical standards. Remote contract work pays $200 per approved task and typically takes about four hours.
Build financial models, forecasting tools, dashboards, and automated Excel workflows using advanced formulas, Power Query, pivot tables, and VBA. The role pays $60 per hour and is open in eligible countries listed for the project.
Use econometric modeling, causal inference, and statistical analysis to answer real business and policy questions. This project-based Economics Expert role pays $80 per hour and requires a relevant master’s degree and first-author work.
Record a short English script with your authentic Dutch-influenced accent using a phone or computer. This entry-level audio project pays $30 per hour and takes about 15 minutes or less.
Take on remote, asynchronous data engineering projects lasting 2 to 3 weeks, with 10 to 20 hours per week and pay of $60 to $100 per hour. Use ETL, cloud infrastructure, data warehousing, and modern engineering tools.
Build and review computer architecture coding tasks that test AI models, using research areas such as caches, prefetchers, branch prediction, and accelerators. This remote, asynchronous contract work pays $200 per approved task.