Explore remote AI training and data labeling roles that currently accept applicants in El Salvador. OpenTrain hires candidates and may place or refer successful applicants to a client project.
Join OpenTrain AI as an expert red teamer probing conversational models for jailbreaks, prompt injection, bias exploitation, and multi-turn manipulation; remote contractor role, 20+ hrs/week, $48–$62/hr, native English and Dutch required.
Posted Jul 30, 2026
Evaluate AI chatbot responses against realistic small business scenarios, compare multiple models, and provide structured feedback. This remote, project-based contractor role runs for 10 weeks and requires 20+ hours per week.
Posted Jul 29, 2026
Evaluate and improve agentic coding models by reviewing agent trajectories, verifying outputs, and designing rubrics on a 5-week remote contract. Requires 5+ years of hands-on software experience and daily overlap with PST.
Posted Jul 29, 2026
Short-term remote contract for a bilingual French/English analyst to create, label, and evaluate analytical Q&A that improve large language models; part-time (20+ hrs/week) with requirements to overlap US hours and potential extension. Entry-level friendly for strong analytical writers.
Posted Jul 29, 2026
Expert contractor role to design and optimize GPU software for LLM training (CUDA/WebGPU/GLSL). Remote, 20+ hrs/week, $60–$85/hr; requires advanced GPU programming and strong C++ for host-side integrations.
Posted Jul 29, 2026
Use your consulting experience to evaluate AI and human consulting deliverables for real-world projects. Remote, freelance role paying $100–$150/hr with a default 40-hour weekly commitment and flexible part-time options.
Posted Jul 29, 2026
Join OpenTrain as an ML Researcher Evaluation Specialist to assess frontier machine-learning researchers and their publication records for a high-priority pilot; part-time contractor role (20+ hrs/week), remote worldwide, paid $60–$100 USD/hr.
Posted Jul 29, 2026
Create and evaluate realistic business .xlsx/.docx/.pptx examples and provide side-by-side preference data to improve AI document behavior. Remote, contract role (20+ hrs/week) paying $20–60/hr; entry-level applicants with strong Excel/Office skills welcome.
Posted Jul 29, 2026
Join OpenTrain AI to train next‑generation models by reviewing and annotating microbiology documents (RLHF and evaluation tasks). Remote, contract, 20+ hours/week; pay $70–$90/hr — ideal for candidates with a BSc+ in microbiology/biology and strong scientific communication.
Posted Jul 29, 2026
Join OpenTrain AI to review and annotate technical materials science documents, evaluate AI-generated engineering content, and create domain-specific training scenarios — part-time, remote, and paid $80–$130/hr for ~20+ hours/week.
Posted Jul 29, 2026
Join OpenTrain as an Aerodynamics Expert to review, summarize, and rate advanced aerodynamic and CFD documentation for AI training projects; remote contractor work, 20+ hours/week, $80–$130/hr. Help turn engineering results into high-quality training data for next-generation models.
Posted Jul 29, 2026
Join OpenTrain to help train AI through high-quality Word and PDF review, formatting, and data extraction; remote, contractor work at 20+ hours/week with hourly pay between $20–$55 USD. Ideal for experienced document professionals comfortable with regulated materials and confidentiality.
Posted Jul 29, 2026
Join OpenTrain to design realistic business PowerPoint tasks, collaborate with LLMs to create and edit .pptx files, and evaluate model outputs; contract, remote work at $20–$60/hr with a 20+ hour/week commitment. Apply if you have advanced PowerPoint, Excel, and Word experience.
Posted Jul 29, 2026
Join OpenTrain as a part-time contractor to design reinforcement-learning code environments and expert reference solutions that teach AI to code, debug, refactor, and optimize — paid $50–$150/hr. Remote role with flexible hours; apply with a strong GitHub/GitLab record.
Posted Jul 29, 2026
Join OpenTrain to annotate biological documents and shape AI models in computational biology and medicinal chemistry. Part-time contract work (20+ hrs/week), remote worldwide, $90–$120/hr, focused on classification, entity NER, and evaluation tasks.
Posted Jul 28, 2026
Join OpenTrain as a remote Bioinformatics Scientist to curate and validate drug-discovery datasets, review AI-generated scientific outputs, and deliver written feedback that improves model behavior. Part-time contractor work (20+ hrs/week) paying $90–$120/hr USD depending on experience.
Posted Jul 28, 2026
Join OpenTrain as a remote PhD-level Physics Research and AI Evaluation Specialist—conduct physics research, create educational content, and evaluate AI-generated scientific responses. Part-time contractor role (20+ hrs/week) paying $70–$90/hr.
Posted Jul 28, 2026
Design and evaluate AI-powered enterprise workflows as a Senior Enterprise AI Productivity Specialist — 20+ hours/week, remote worldwide, contractor role paying $80–$150/hr. Build automations, integrations, adoption plans, and business-impact documentation.
Posted Jul 28, 2026
Join OpenTrain as a part-time contractor annotating audio and video for AI training (classification and transcription). Entry-level role, 20+ hours/week, paid USD $6–8/hr — help shape real AI data while working remotely.
Posted Jul 28, 2026
Join OpenTrain as a remote Data Annotator labeling video and audio for AI systems; part-time contract, 20+ hrs/week, $6–$10/hr. No prior AI experience required — attention to detail and strong English are what matter.
Posted Jul 28, 2026
Assess AI-generated reproductions of published ML papers: read papers, inspect code/data/output artifacts, rank reproduction attempts, and provide clear written evaluations. Remote, contractor role for experienced ML researchers — 20+ hrs/week.
Posted Jul 25, 2026
Experienced private equity attorney to review and annotate complex transactional documents for AI training; remote contract, 20+ hrs/week, pay up to $130/hr. Help teach models by providing precise legal analysis, sample clauses, and risk assessments.
Posted Jul 24, 2026
Capture and annotate gameplay from top-tier AAA games while helping shape the data used to train AI systems. This remote, part-time contractor role offers flexible work at $10–$15 per hour for contributors worldwide.
Posted Jul 24, 2026
Review BIM models and construction drawings using Revit and Navisworks to detect clashes, document root causes, and recommend technical fixes for AI training and model evaluation; remote contract, ~20+ hours/week.
Posted Jul 24, 2026
Apply your M&A legal expertise to simulated negotiations, contract redlining, and evaluation of AI-generated legal responses. This part-time remote contractor role pays $90–$150 per hour and requires an active U.S. bar admission.
Posted Jul 23, 2026
Join OpenTrain to record and transcribe Catalan speech from anywhere in Spain, part-time. Help build high-quality Catalan audio datasets, work under flexible hours, and earn $14–17/hr (typical $15/hr) as a contractor.
Posted Jul 23, 2026
Join OpenTrain to create and validate parametric FreeCAD models used to train AI—build libraries of mechanical parts and apply GD&T standards while working 20+ hours/week as a contractor paid $40–$100/hr. Intermediate CAD and mechanical design experience required.
Posted Jul 23, 2026
Help evaluate AI software-engineering models by building reinforcement learning environments, deterministic tests, and reference solutions. This worldwide, part-time contractor role pays $80–$120 per hour and requires strong software engineering skills.
Posted Jul 23, 2026
Annotate images using CVAT and the Segment Anything tool to create polygon outlines for individual objects; entry-level, remote contract work paying $4–$6/hr (typical $5/hr). Start with a short trial and earn more work by meeting speed and accuracy goals.
Posted Jul 22, 2026
Short contract for a bilingual (German/English) reviewer to label and create analytical text scenarios that improve LLM reasoning. One-week, 40 hrs/week remote role with required daily overlap to UTC-8; immediate start.
Posted Jul 22, 2026
