AI QA Trainer - Freelance Project
AI QA Trainer - Freelance Project is an open role at Meridial, located in Singapore, with pay listed as $6–$65/hr.
Applications open on Meridial’s own site. How we make money.
About this role
Are you an AI QA expert eager to shape the future of AI? Large-scale language models are evolving from clever chatbots into enterprise-grade platforms. With rigorous evaluation data, tomorrow’s AI can democratize world-class education, keep pace with cutting-edge research, and streamline workflows for teams everywhere. That quality begins with you—we need your expertise to harden model reasoning and reliability. We’re looking for AI QA trainers who live and breathe model evaluation, LLM safety, prompt robustness, data quality assurance, multilingual and domain-specific testing, grounding verification, and compliance/readiness checks. You’ll challenge advanced language models on tasks like hallucination detection, factual consistency, prompt-injection and jailbreak resistance, bias/fairness audits, chain-of-reasoning reliability, tool-use correctness, retrieval-augmentation fidelity, and end-to-end workflow validation—documenting every failure mode so we can raise the bar. On a typical day, you will converse with the model on real-world scenarios and evaluation prompts, verify factual accuracy and logical soundness, design and run test plans and regression suites, build clear rubrics and pass/fail criteria, capture reproducible error traces with root-cause hypotheses, and suggest improvements to prompt engineering, guardrails, and evaluation metrics (e.g., precision/recall, faithfulness, toxicity, and latency SLOs). You’ll also partner on adversarial red-teaming, automation (Python/SQL), and dashboarding to track quality deltas over time. A bachelor’s, master’s, or PhD in computer science, data science, computational linguistics, statistics, or a related field is ideal; shipped QA for ML/AI systems, safety/red-team experience, test automation frameworks (e.g., PyTest), and hands-on work with LLM eval tooling (e.g., OpenAI Evals, RAG evaluators, W&B) signal fit. Skills that stand out include: evaluation rubric design, adversarial testing/red-teaming, regression testin
Pay
$6–$65/hr
About Meridial
Meridial's connection to Invisible Technologies: Invisible-powered expert contractor network. Law, STEM, finance, coding, linguistics, safety and AI training
Ownership confidence: Confirmed. See the full network profile →
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Frequently asked questions
How do I apply for the AI QA Trainer - Freelance Project role at Meridial?
Applications go through Meridial's own portal - HumanSourcer links to the listing and never collects applications or handles hiring. Meridial's access model is "Apply" (Join network / apply to projects). This listing was first seen here on July 19, 2026 and was still live at the last check.
Is the AI QA Trainer - Freelance Project role at Meridial remote?
This role is listed for: Singapore.
What does the AI QA Trainer - Freelance Project role at Meridial pay?
Meridial lists this role's pay as $6–$65/hr, quoted from the listing rather than estimated.
What kind of work is AI QA Trainer - Freelance Project?
Translation / linguistics. Law, STEM, finance, coding, linguistics, safety and AI training
Is Meridial a legitimate AI-training platform?
Invisible-powered expert contractor network - and that relationship is rated "Confirmed" here because it can be checked against www.meridial.ai rather than taken on Meridial's word. Confidence describes how well the ownership is evidenced. It is not a rating of how the platform treats the people who work for it, which no public source covers reliably.
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