• *About The Role
In this remote, full-time role at Rex.zone, you will design and deliver STEM learning experiences (coding, robotics, math, and science) and improve outcomes through data-driven iteration. You will also support edtech workflows such as content QA, rubric-based evaluation, prompt evaluation for AI-assisted tutoring, and structured labeling of learning artifacts to improve training data quality for LLM-powered education tools.
• *Key Responsibilities
• Design STEM curriculum modules and lesson sequences for coding, robotics, math, and science
• Deliver live classes and/or produce asynchronous instructional content
• Create quizzes, rubrics, project-based assessments, and answer keys aligned to learning objectives
• Perform content QA for factual correctness, clarity, accessibility, and age-appropriateness
• Conduct rubric-based evaluation of learner work and instructional content
• Run prompt evaluation for AI tutoring prompts/responses to improve safety, helpfulness, and pedagogy
• Label educational artifacts using guidelines (topics, difficulty, misconceptions, reasoning quality)
• Collaborate with product and engineering on LMS tooling, content pipelines, and learning analytics
• *Required Qualifications**
• Mid-senior experience in STEM teaching, curriculum design, instructional design, or edtech
• Strong foundation in at least one STEM domain (CS, math, physics, chemistry, biology, electronics, robotics)
• Experience writing assessments and rubrics with measurable learning objectives
• Familiarity with LMS platforms and digital content workflows
• Strong QA mindset and attention to detail
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