STEM Jobs in India

STEM Jobs in India (Remote, Full-Time)

Rex.zone connects candidates to engineering and applied AI/ML workflows that power large language model training pipelines. You will support training data quality through data labeling, RLHF evaluation, QA evaluation, and guideline-based reviews across NLP, computer vision, and content safety domains.

What You Will Do

Execute data labeling for NLP and computer vision using clear taxonomies and instructions
Perform RLHF-style preference ranking and rubric-based scoring for LLM outputs
Run QA evaluation for completeness, consistency, and annotation guidelines compliance
Conduct prompt evaluation and error categorization to surface model failure modes
Perform named entity recognition (NER) and span labeling with strict boundary rules
Support content safety labeling (e.g., harassment, self-harm, regulated goods)
Maintain audit trails, adjudication notes, and participate in calibration sessions
Communicate findings to stakeholders to drive measurable model performance improvement

Required Qualifications

STEM background or equivalent engineering experience
High attention to detail; ability to follow detailed specifications and handle edge cases
Experience with QA evaluation, data labeling, or structured review workflows
Strong documentation skills and consistency at scale in a metrics-driven environment

Preferred Qualifications

Experience with RLHF, LLM evaluation, prompt evaluation, or ranking tasks
Familiarity with NER, text classification, or computer vision annotation
Exposure to content safety labeling and policy categories
Experience improving training data quality via audits and inter-annotator agreement

Tools & Workflows

Web-based annotation tools, spreadsheet QA workflows, issue tracking, versioned guidelines, and structured rubrics.

Work is designed for distributed collaboration.
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