Remote Mathematics Specialist for AI Trainer - Spanish

Invisible Technologies Inc.; United States; Remote; USD 8,300 - 90,000; Full time

Job summary

Invisible Technologies is seeking a Mathematics Specialist fluent in Spanish (Spain) to train and evaluate AI language models. You will challenge models on algebra, calculus, number theory, and related fields while documenting failures and tracing errors for reproducibility.

As a contract remote role, a Master’s or PhD in mathematics is ideal; strong communication and ability to show your work are essential. Pay ranges hourly from $6 to $65 depending on experience and location.

Qualifications

• Master’s or PhD in mathematics or a closely related quantitative field ideal.
• Peer‑reviewed publications, teaching experience, research in pure or applied mathematics, or hands‑on experience with mathematical modeling signa l fit.
• Clear, metacognitive communication—"showing your work"—is essential.

Responsibilities

• Converse with the model on classroom problems and theoretical mathematics questions.
• Verify factual accuracy and logical soundness of responses.
• Capture reproducible error traces to inform debugging and evaluation.
• Suggest improvements to prompt engineering and evaluation metrics.

Skills

Algebra

Calculus

Number theory

Linear algebra

Differential equations

Statistics

Geometry

Discrete mathematics

Real/complex analysis

Optimization theory

Mathematical proofs

Set theory

Cryptographic algorithms

Applied mathematics

Education

Master’s or PhD in mathematics or closely related quantitative field

Job description

Invisible Technologies is seeking a Mathematics Specialist fluent in Spanish (Spain) to train and evaluate AI language models. You will challenge models on algebra, calculus, number theory, and related fields while documenting failures and tracing errors for reproducibility.

As a contract remote role, a Master’s or PhD in mathematics is ideal; strong communication and ability to show your work are essential. Pay ranges hourly from $6 to $65 depending on experience and location.