STEM Research

STEM Research Jobs in the United States (Remote)

Rex.zone research roles focus on applied, hypothesis-driven workflows that turn ideas into measurable results across AI/ML, NLP, computer vision, and data-driven engineering. You will design experiments, build prototypes, evaluate model/system performance, and communicate findings to stakeholders in a distributed team.

What You Will Do

• Translate problem statements into testable hypotheses and run reproducible experiments
• Implement prototypes and evaluation harnesses in Python; maintain experiment logs for repeatability
• Perform statistical analysis, error analysis, and baseline/ablation studies
• Collaborate on dataset curation, data labeling strategy, and QA evaluation to improve training data quality
• Document results, risks, and recommendations via clear technical writing and research summaries

• Mid-Senior experience delivering applied research or R&D outcomes in a STEM domain
• Strong experimental design and statistical reasoning (e.g., hypothesis testing, confidence intervals)
• Proficiency in Python and common data science tooling
• Experience with ML evaluation, dataset versioning/curation, and training data quality workflows
• Ability to collaborate effectively in remote, asynchronous teams

• LLM evaluation, prompt evaluation, or RLHF-adjacent workflows
• Familiarity with annotation guidelines compliance and vendor/ops labeling programs
• Exposure to MLOps and experiment tracking for reproducible research