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Mathematics PhD (Graduate or Candidate, Top 30 Program) at Obsidian. Location Information: USA. This description is a summary of our understanding of the job description. Click on 'Apply' button to find out more.. Role Description. Mercor is collaborating with a leading AI research group to engage experts with advanced training in mathematics. This cutting-edge project focuses on strengthening AI systems’ reasoning capabilities through rigorous problem-solving and theorem-based evaluation. You will be applying graduate-level expertise to assess and validate complex mathematical reasoning.. Solve and evaluate challenging mathematics problems across diverse fields . Review AI-generated proofs and solutions for correctness and rigor . Provide structured feedback to improve mathematical reasoning models . Qualifications. Recent PhD in Mathematics (within past 4 years) OR PhD candidate ≥3 years into program (typically ≥4th year from undergrad entry, or ≥3rd year with master’s entry) . Enrolled in or graduated from a top 30 mathematics program . Ideally active in research/academia . Strong background in advanced problem-solving, with ability to clearly articulate reasoning, reference theorems, and identify gaps in writing . Benefits. Remote and asynchronous — set your own schedule . Flexible, project-based engagements . 5-6 week engagement with potential for additional opportunities . Compensation & Contract Terms. Competitive hourly compensation, commensurate with your background & experience . Independent contractor arrangement . Payments processed weekly via Stripe Connect . Application Process. Submit your resume and complete an interview to get started (if we do not have one already on file) . Qualified applicants will receive follow-up within a few days with next steps . Company Description. Mercor is a talent marketplace connecting top experts with leading AI labs and research organizations . Backed by Benchmark, General Catalyst, Adam D’Angelo, Larry Summers, and Jack Dorsey . Thousands of professionals across domains such as law, engineering, research, and creative services contract with Mercor to contribute to frontier AI projects