Jack McCarthy

Curriculum Vitæ

Education

Stony Brook University · Long Island, NY

Expected May 2027

MA in Mathematics · 3.9 GPA

Courses Real Analysis, Complex Analysis, Geometry & Topology, Algebra.

  • Passed the PhD comprehensive exam.

Fordham University · New York, NY

2025

BS in Computer Science & Mathematics, minor in Physics · 3.54 GPA

Experience

Research Collaborator · Meta · New York, NY

Jul 2026 – Present

  • Develop autoformalization infrastructure with FAIR’s Core Learning and Reasoning group.
  • Maintain AutoformBot.

Independent Contractor · Mathlib Initiative · New York, NY

Jul 2026 – Present

  • Contribute to Mathlib4, the world’s largest formalization library, with the Formal Frontiers team.

AI Trainer · Handshake AI · New York, NY

Apr – Aug 2026

  • Solved and designed graduate-level problems in differential geometry and stochastic differential equations to train AI models for clients including Alphabet Inc. and OpenAI.
  • Promoted to senior reviewer on reinforcement-learning datasets.

Mathematics Grader · Stony Brook University · Long Island, NY

Aug 2025 – Jan 2026

  • Graded homework and exams for three undergraduate Arithmetic & Algebra courses.

Mathematics & Computer Science Teacher · West Nottingham Academy · Maryland

Aug 2023 – Aug 2024

  • Taught five high-school classes across Algebra I, Algebra II, Computer Science, and Discrete Mathematics at the oldest boarding school in the United States.
  • Spearheaded an AI mentorship program and led nine students to a capture-the-flag hackathon, where they outscored two undergraduate teams.

Projects & Extracurriculars

Math Formalization in Lean

  • Co-organizer of the weekly NYC Lean meetup.
  • Author of a complete, sorry-free Lean 4 formalization of the classification of compact surfaces.
  • Author of Marathon, a human-driven autoformalization framework for Aristotle and Claude.
  • Maintainer of WikiLean, an AI-moderated mirror of WikiProject Mathematics annotated with links to Mathlib declarations.
  • Contributor to open-source formalization projects, including Michael R. Douglas’s Jacobian Challenge, Rémy Degenne’s Brownian Motion, Mathlib’s manifold geometry library, and an ongoing formalization of Stokes’ theorem.
  • Gave the talk “4 Reasons You Should Care About Math Formalization” at Wikipedia Day NYC 2026.

Medical Device Engineer · Northeast Ohio Medical University

  • Lead engineer on a research team; designed, prototyped, and presented a patented medical device to improve post-operative care for cancer patients.
  • The team won a Legacy Award at NEOvations 2025.

AI and Statistical Models

  • Implemented image-classification CNNs, FFNs, and genetic algorithms in TensorFlow, and Brownian-bridge stochastic simulations in MATLAB.
  • Wrote backpropagation with the Adam optimizer from scratch in NumPy.

Self-Studying Mathematics

  • Scored 11 on the 2025 Putnam Competition.
  • Contributor to WikiProject Mathematics.
  • Worked through every problem in seven textbooks, including Friedberg–Insel–Spence’s Linear Algebra, Needham’s Visual Differential Geometry, and Lee’s Introduction to Smooth Manifolds.
  • Attendee of the Einstein Chair (CUNY), Symplectic Geometry (Stony Brook), and (Fun)damental AI and Math (Columbia) seminars, and the Simons Center colloquium.

Academic Service

Reviewer · VeriCodeGen, NeurIPS

2026

AI for Verifiable Coding workshop

Skills

Languages Lean, Python, Rust, MATLAB, JavaScript / HTML / CSS, C++, Java.

Libraries Mathlib4, NumPy, TensorFlow, pandas.

Tools Claude Code, Claude Agent SDK, Antigravity, LaTeX, Git / GitHub, VS Code, Godot.

Contact


github.com/Deicyde
linkedin.com/in/jack-mccarthy-648728236