Millena Martins

Millena Martins

I started doing tech and AI science olympiads. Along the way, I spent 2.5 years researching AI at one of the largest research institutes, then took that work to Stanford (SPINWIP & SiBRP) to explore AI for autism. This research turned into a real screening tool. I ended up featured in Forbes Under 30 (Science & Education), and my story has appeared in CNN and Forbes. I was in a delegation at the International AI Olympiad in Bulgaria, and I'm now studying CS and Finance at Penn's M&T program.

Times Square billboard featuring Millena Martins
Times Square, New York. Talvy Human Spotlight campaign
Millena Martins moderating an AI panel at the BRASA Summit
Moderating an AI panel at the BRASA Summit, with Anthropic's Staff Marcus Fontoura, MIT's Marcelo Coelho and Stone's Thiago Caiubi
Millena Xavier speaking on stage at B3, the Brazilian stock exchange
Lecture at B3, the Brazilian stock exchange
Millena Xavier interviewed on The Noite com Danilo Gentili
Interviewed on “The Noite com Danilo Gentili”: Brazil's Jimmy Fallon, and a top-3 nighttime talk show worldwide
Millena Martins presenting on conversational AI at Yale
Presenting on AI at Yale University. 200+ audience.
ConecTalks speaker announcement featuring Millena Xavier
ConecTalks keynote speaker
Millena Xavier speaking at a Fundacao Behring event at MIT
Speaking at a Fundação Behring event at MIT
Millena Martins giving a Rise lightning talk at Rhodes House, Oxford
Rise lightning talk at Rhodes House, University of Oxford
Millena Xavier at the Prudential Emerging Visionaries event in New York
Prudential Emerging Visionaries, at Prudential Financial’s New York headquarters
Millena Xavier speaking on stage at Hotmart Fire
Hotmart Fire, speaking to 8,000 people
Youngest Forbes Under 30Science & Education
Top 10Global Student Prize, the Student Nobel, out of 176 countries
1 of 100Rise Global Winner, picked by the Rhodes Trust and Schmidt Futures from 150,000+ applicants
6 goldsBrazilian science, tech and AI olympiads, the highest performance by a girl overall
First girlTo represent Brazil at the International AI Olympiad

Academics

2025 to 2029 University of Pennsylvania Jerome Fisher Program in Management & Technology. Dual degree across Wharton (Finance) and Engineering (CS)
2025 University of Oxford Intensive Summer Program
2024 Stanford University SPINWIP, Program for Women in Physics and Computing · SiBRP, Bioengineering Research
2021 University of Toronto Global Engineering Challenge, on full scholarship
2022 UWC ISAK Japan Science, Progress and Society
2021 to 2023 The New York Academy of Sciences Student Researcher, Young Member
2023 Latin American Leadership Academy LALíder: leadership and social innovation
2022 FGV Summer Course in business and economics

Where I've worked

Since 2026

Student Fellow, Pier

A private markets network for GPs and LPs.

Since 2025

Project Manager, OpenAI Lab @ Penn

America's first university-based OpenAI initiative. I work on the best practices for student data privacy in generative AI.

Since 2026

Teaching Assistant, Penn Engineering

Youngest TA selected in the school. I write the lesson plans and grading materials for a class of upperclassmen.

2026

Intern, BTG Pactual

2026

Fellow, Jane Street

Trading & Technology Program, one week in the New York office.

Only female Penn student accepted
2025/26

Investor Relations & Growth, Crebit Pay

Built the pitch book and led the client presentation that closed a six-figure USD tier-1 investment. TMT industry research and due diligence, including the analysis justifying equity value. Represented Crebit at conferences and ran sales calls with executives at tier-1 LatAm banks.

Backed by a16z, Kleiner Perkins, Phoebe Gates, Lucy Guo
2025

Venture Capital Intern, Entrypoint Ventures

Due diligence on 40+ companies and the investment memos behind them. Screened TMT deal flow through executive diligence calls, including two investments since marked up 30x, and built a Python deal-sourcing system for looking up precedent transactions.

2025

Member of Technical Staff, Dharma AI

Pandas pipelines to clean and validate 7,000+ healthcare records for small-language-model fine-tuning, plus automated ingestion of 10,000+ clinical records.

2024/25

Advisory Board Member, International Research Olympiad

Youngest member of the board. Built the growth strategy for the LatAm network and judged all three phases of the olympiad.

2022/24

AI Researcher, CNPq

Brazil's Council for Scientific & Technological Development. Built a machine learning platform for autism spectrum disorder screening, ran beta testing with 300+ users, and received four investment proposals from angel investors.

What I've built

PrepOlimpiadas

The largest Brazilian NGO preparing public-school students for science olympiads. I started it as a student who had to move cities at 15 to reach a good school. The point is that nobody should have to.

100,000+students reached across Brazil
260+volunteers organized nationally
300schools reached
The PrepOlimpiadas Instagram profile, with 14.1 thousand followers
@prepolimpiadas · 14.1K followers

Autinosis

An AI screening tool for autism diagnosis, funded by CNPq (Brazil's national research council) and presented at a UFV postgraduate symposium.

GoldInternational Olympiad in Artificial Intelligence
SilverICYS, the third largest science fair in the world
First girlto represent Brazil at the IOAI
Live demo of the screening tool

Supported by

Prudential
Rhodes Trust
Schmidt Futures
National Geographic
Bending Spoons
Behring Foundation

Get in touch