Backend Java Developer for AI Training Systems
Build scalable Java and Spring Boot backend systems that support next-generation AI training work. This remote contractor role offers 20+ hours weekly at $60 to $110 per hour.
Posted Aug 20, 2026
Find remote AI training and data labeling jobs open to applicants in Hungary.
Build scalable Java and Spring Boot backend systems that support next-generation AI training work. This remote contractor role offers 20+ hours weekly at $60 to $110 per hour.
Posted Aug 20, 2026
Evaluate 3D character animations and CGI video data to help improve AI systems. This flexible remote contractor role pays $15-$80/hour and welcomes entry-level applicants with relevant 3D expertise.
Posted Aug 20, 2026
Use professional Avid Media Composer and post-production skills to annotate video data for AI training. This remote contractor role offers $15 to $80 per hour and requires 20 or more hours weekly.
Posted Aug 20, 2026
Use Adobe Premiere Pro and After Effects to edit, annotate, and categorize video assets for AI training. This flexible remote contractor role offers approximately 20+ hours per week for 1-3 months.
Posted Aug 20, 2026
Use DaVinci Resolve and your post-production judgment to label and evaluate video for AI training. This remote contractor role offers $15-$80 per hour and 20+ hours of weekly work.
Posted Aug 20, 2026
Use Final Cut Pro and macOS workflows to segment footage, mark keyframes, and prepare accurate video data for AI training. This remote contractor role pays $15 to $80 per hour and welcomes entry-level video editors.
Posted Aug 20, 2026
Review documents and transformed datasets to verify PII redaction and anonymization quality. This remote contractor role offers $31-$60 per hour and flexible work of 20+ hours weekly.
Posted Aug 19, 2026
Apply your technology transactions expertise to simulated negotiations, contract redlining, and AI response evaluation. This remote, part-time contractor role offers $90-$200 per hour and requires at least three years of in-house experience.
Posted Aug 19, 2026
Use your expertise in fine arts, visual culture, and art history to write challenging prompts and evaluate AI-generated responses. This worldwide, part-time contract role offers 20+ hours per week in cutting-edge AI evaluation.
Posted Aug 19, 2026
Help train advanced AI systems by creating and evaluating expert-level financial tasks involving valuation, investment research, modeling, forecasting, and risk assessment. This contract requires 20+ hours per week and PST overlap.
Posted Aug 19, 2026
Use 8 to 15 years of strategy or management consulting experience to create, evaluate, and refine complex scenarios that train AI in strategic reasoning. Work remotely as a flexible contractor for 20+ hours weekly.
Posted Aug 19, 2026
Use your marketing expertise to create and evaluate strategic tasks that improve AI-generated recommendations. This remote, part-time contractor role offers 20+ hours weekly for English-speaking marketing professionals worldwide.
Posted Aug 19, 2026
Use your public interest legal experience to create realistic scenarios, reference briefs, and judgment-based rubrics for AI evaluation. This contract role pays $90 to $100 per hour and requires 20+ hours weekly.
Posted Aug 19, 2026
Use senior intellectual property expertise to create patent, licensing, enforcement, and portfolio strategy evaluation tasks for AI systems. This remote contract role pays $90-$100 per hour and requires at least five years of IP experience.
Posted Aug 19, 2026
Use hospital-based medical expertise to review inpatient records, FHIR data, clinical notes, and claims for clinical accuracy in an AI training project. This remote contractor role pays $70 to $100 per hour and requires 20+ hours weekly.
Posted Aug 19, 2026
Use senior hospitalist expertise to review inpatient cases, documentation, and care quality for AI training. This remote contractor role offers $70-$100 per hour and requires 20+ hours weekly.
Posted Aug 19, 2026
Create and validate precise parametric FreeCAD models that help train AI systems, from mechanical parts to assemblies. This flexible contractor role pays $40-$100 per hour and requires 20+ hours weekly.
Posted Aug 19, 2026
Build, edit, and review parametric 3D CAD models of mechanical parts and assemblies for AI training. Apply your engineering judgment remotely for project-based work paying $40 to $100 per hour.
Posted Aug 19, 2026
Use advanced parametric CAD, GD&T, and manufacturability expertise to create and review mechanical models and drawings for an AI training project. Contract work offers 20+ hours per week and $30-$100 per hour.
Posted Aug 19, 2026
Use advanced parametric CAD and manufacturing knowledge to create, review, and improve mechanical models for AI training. This flexible contract role offers $40-$100 per hour and requires 20+ hours weekly.
Posted Aug 19, 2026
Review and improve FreeCAD models, mechanical assemblies, and technical drawings that help train AI for real-world engineering work. This remote contractor role offers flexible project work at $40 to $100 per hour.
Posted Aug 19, 2026
Evaluate AI-generated SQL, metrics, joins, filters, and time windows in realistic Snowflake analytics workflows. Earn $50 to $60 per hour while helping improve the accuracy and reliability of AI assistants.
Posted Aug 19, 2026
Use your software engineering expertise to evaluate AI developer workflows, test code and integrations, and improve next-generation AI systems. This contractor role offers $50-$70 per hour and requires 20+ hours weekly.
Posted Aug 19, 2026
Use FreeCAD and manufacturing expertise to create production-ready mechanical models, drawings, and assembly documentation for AI training. This remote contractor role offers approximately 15-20 hours per week at a target rate of $40-$100 per hour.
Posted Aug 19, 2026
Use native-level Hungarian expertise to evaluate and improve AI-generated text remotely. This part-time contractor role pays $25 per hour for approximately 20 hours weekly.
Posted Aug 19, 2026
Use your power electronics and PCB design expertise to evaluate technical AI-training materials, designs, and verification frameworks. Work remotely as a part-time contractor for 20+ hours per week.
Posted Aug 18, 2026
Use professional accounting and audit expertise to review financial documents and strengthen how AI systems interpret reporting, compliance, and financial data. Remote contractor work pays $40-$95 per hour and requires 20+ hours weekly.
Posted Aug 18, 2026
Use advanced Excel, PowerPoint, and Word expertise to design realistic business scenarios and evaluate AI-generated documents, presentations, reports, and models. This remote contractor role offers $35-$50 per hour and requires 20+ hours weekly.
Posted Aug 17, 2026
Use your legal expertise to evaluate US legal documents and improve AI systems through research, drafting, quality review, and structured feedback. This flexible contractor role requires 20+ hours weekly and pays $140-$400 per hour.
Posted Aug 17, 2026
Use your emergency communications expertise to evaluate AI responses, dispatch scenarios, and incident documentation. This remote, part-time project pays $30-$65 per hour.
Posted Aug 16, 2026
AI training and data labeling work helps prepare and review examples used by artificial-intelligence systems. Depending on the role, tasks may include 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 applicants in Hungary, the individual posting determines whether location eligibility applies and what the work involves.
OpenTrain is the hiring organization for the roles published on OpenTrain. Candidates apply through OpenTrain, and successful candidates may be placed with or referred to the client whose project they will support. The individual posting provides the authoritative information for that opportunity, including its eligibility and requirements.