We are seeking a highly experienced Pure Mathematics professional to serve as a consultant on AI training data projects for leading AI model builders and research enterprises. Your focus will be to define success criteria, review outputs, and provide precise mathematical guidance to improve quality and consistency — directly contributing to the successful delivery of domain-specific annotated datasets, problem sets, and mathematical proofs that meet rigorous technical and academic standards. You will be engaged on specific projects with defined deliverables, milestones, and completion dates.
We offer a pay range of $25-to- $100 per hour, with the exact rate determined after evaluating your experience, expertise, and geographic location. Final offer amounts may vary from the pay range listed above. As a contractor you’ll supply a secure computer and high‑speed internet; company‑sponsored benefits such as health insurance and PTO do not apply.
Job title: Math Expert (SME)
Employment type: Contract
Workplace type: Remote
Seniority level: Senior Level

Invisible Technologies makes AI work.
Our platform cleans, labels, and structures company data so it’s ready for AI. It adapts models to each business and adds human expertise when needed — the same approach used to improve models for over 80% of the world’s top AI companies, including Microsoft, AWS, and Cohere.
Our successes span industries — from supply chain automation for Swiss Gear, to AI-enabled naval simulations with SAIC, and validating NBA draft picks for the Charlotte Hornets.
Invisible, profitable for over half a decade, reached $134m in revenue and ranked #2 fastest-growing AI company in 2024, and recently raised $100M to advance its platform technology.