Mathematics × Computer Science

Batsambuu Batbold

I build things and solve problems between abstraction and reality.

I'm a Mathematics & Computer Science student at Macalester College, passionate about problem-solving, programming, and data analysis.

Portrait of Batsambuu Batbold
50° N · 100° E
3.96GPA / 4.0
2027Macalester
IMOBronze medal
MN / MNGBased in St. Paul, MN · from Mongolia
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01 About

Problem solver.
Story collector.

I'm a problem solver who loves good stories. I discovered the beauty of mathematics in 7th grade through logic games, eventually earning medals at national and international math competitions, including the International Mathematical Olympiad (IMO).

Now at Macalester College, I'm applying the same curiosity and discipline from math to programming and data analysis. I'm passionate about turning abstract mathematical ideas into practical, human-centered tools.

I believe the problem-solving mindset and analytical skills I've built through mathematics will help me succeed and adapt in the ever-changing world of technology.

PythonTypeScriptJavaScript SQLRC++Java ReactNext.jsFastAPI PostgreSQLScikit-learnNetworkX

03 Research & Publications

Finding structure
inside complexity.

Research projects, publications, and the tools that grow from asking difficult questions.

Macalester College · Summer 2026

Research Assistant & Full Stack Developer

  • Analyzed scientific-concept networks from 70 million academic papers across 150+ fields using Topological Data Analysis.
  • Developed custom graph-layout algorithms for networks with 10,000+ nodes.
  • Built tested research infrastructure spanning parsing, layouts, APIs, and interactive visualization.
70Macademic papers
150+scientific fields
10K+network nodes
~15%fewer edge crossings

Research tool · Live

TDA Cycle
Explorer

A full-stack visualization app for exploring persistent-homology cycles in large network data. FastAPI endpoints power React, Zustand, ECharts, and Three.js views, backed by comprehensive pytest coverage.

  • FastAPI
  • React
  • Three.js
  • pytest
  • TDA
Launch project
TopoLens persistent-homology visualization interface
Procedurally generated 3D terrain rendered in Blender Published · SoCG 2026

Multimedia publication

From Chaos
to Continents

A procedural terrain engine using Voronoi diagrams and Perlin noise to create worlds with 50,000+ polygons. NumPy vectorization reduced generation time by 40%.

  • Python
  • NumPy
  • Streamlit
  • Blender
Read the publication

04 Experience

Built in code.
Grounded in people.

Roles, responsibilities, and lessons from the teams and communities I have worked with.

01
May 2019 — Present Young Mathematicians of Khuvsgul

Full Stack Developer & Organizer

Built and deployed a Mongolian math-olympiad platform using Next.js, React, TypeScript, Supabase, PostgreSQL, and Tailwind. Architected database-enforced security, indexed search, live contests, automated grading, leaderboards, and an admin CMS. Grew the platform to 100+ registered users and 1,300+ visitors in one day while organizing free programs for 30+ rural students.

02
Dec 2025 — Jan 2026 Mercor · Remote

Mathematics Domain Expert · Frontier AI

Authored original competition-level mathematics problems to evaluate state-of-the-art AI models. Assessed generated proofs for logical correctness, identified reasoning errors, and produced annotated, step-by-step corrected solutions for AI training data.

03
Jan 2024 — Present Macalester College

Undergraduate Preceptor

Facilitate learning for Computational Linear Algebra, Linear Algebra, and Introduction to Computer Science. Hold office hours, grade assignments, and support 30+ students per semester.

04
Summer 2025 Delgermurun Secondary School

Teaching Assistant

Coached students for the International Math Contest for Juniors; one student earned a Silver Medal. Designed a Quarto website for interactive mathematics and programming lessons.

07 Photography

Light, memory,
and software.

Photography is where I slow down. Mosaic is where I turned that practice into a product.

"Practicing an art, no matter how well or badly, is a way to make your soul grow, for heaven's sake." — Kurt Vonnegut

I like observing my surroundings and listening to the sounds of life. Photography is a form of art I enjoy that helps me remember and store these moments. Sometimes I simply take out my phone to capture sudden moments, or go on a walk with my camera to explore the beauty around me. I'm always learning and experimenting, but I've realized I'm less interested in becoming a professional and more in following my feelings, letting my art grow naturally as I experience the world.

Photography platform · Live

Mosaic

A digital gallery and portfolio builder with serverless image processing, Cloudflare R2 storage, automated color-palette extraction, EXIF parsing, and on-demand loading for high-resolution images.

  • Next.js
  • TypeScript
  • PostgreSQL
  • Cloudflare R2
Enter Mosaic
Mosaic photography portfolio interface

05 Achievements

Milestones,
not finish lines.

A record of long problems, strong teams, and the joy of getting somewhere difficult.

Global · 2020–2021 IMO

Bronze Medal & Honorable Mention

Represented Mongolia at the world's most prestigious high school mathematics competition. Top 250 globally; Mongolia ranked 11th, its best team result in history.

View result ↗
2025

Macalester ASA DataFest

1st Place

Analyzed large geospatial datasets in R and presented actionable location recommendations.

2025 & 2026

Macalester Programming Contest

2× 1st Place

Solved algorithmic competitive programming problems in C++.

2026

Konhauser Problemfest

1st Place

Macalester's first victory in the multi-college competition since 2018.

2018–2021

National Math Olympiad

Silver & 2 Bronze

Earned top national results after years of intensive training.

2020–2021

Presidential Award

Mongolia

Recognized by the President of Mongolia as a member of the national mathematics team.

06 My Story

Where the work
comes from.

Northern Mongolia, mathematics, many classrooms, and the people who made each next step possible.

01

My Background

I grew up in the northernmost rural part of Mongolia, where it takes a full day to reach Ulaanbaatar, the world's coldest capital. Life there wasn't extraordinary; people mostly minded their own business. My parents were no different. They had never left our town or gone to college, but they provided me and my sister with a happy childhood. At first, this seemed like a limitation, but I now see it as my greatest advantage. Because they had never experienced college or life abroad, they never hesitated to let me chase every opportunity I could find.

That freedom allowed me to study math for hours without interruption, even though I was the strongest at home and could have helped with physically demanding chores. Eventually, it opened doors I could never have imagined. I moved alone to the capital to attend one of Mongolia's most prestigious high schools after winning a silver medal at the national math olympiad, which came with a full scholarship. This was during Covid, and living alone at such a young age was one of the hardest challenges I had faced. But it also gave me focus. I pursued my high school dream: to be selected as one of the six top math students in the country, represent Mongolia, and win a medal at the International Mathematical Olympiad. I did. I fulfilled my dream, and I was ready for the next chapter.

Growing up in a rural town, I had never realized the importance of English. No one around me spoke it, except my older sister in later years. Luckily, the principal of my high school noticed my determination and encouraged me to apply to United World College in Maastricht, Netherlands. For two years, I lived among students from around the world, learning English, embracing new cultures, and discovering who I could become. Those years changed me the most. I went from a boy leaving his country for the first time to someone confident in facing any challenge, making friends across six continents.

Now, I'm in the U.S., studying at a liberal arts college. I'm exploring a wide range of subjects, from art history and environmental studies to economics, and discovering new passions in computer science and data science. I'm meeting people from different backgrounds, learning from them, and shaping the next chapter of my life. I'm not here because I was born into wealth or privilege, but because of supportive parents, inspiring teachers, and friends I could always count on.

In short, I'm rooted in nomadic traditions, shaped by Soviet echoes, guided by Asian philosophy, all while embracing a Western mindset.

02

Interests & Hobbies

01 · Basketball
"Three seconds left, Batsambuu catches the ball, three, two, one, he shoots it, BANGGG! BUZZER BEATER!"

This is how seven-year-old me used to imagine and commentate on myself while playing basketball (using socks as a ball and a chair as a basket) after watching the 2010 NBA Finals. One player, Kobe, stood out from the rest and became the best player in the finals. That's when I first realized what a great sport basketball is, seeing the joy he brought to twenty thousand fans at Staples Center. Since then, I've enjoyed everything about basketball: playing it, watching it, exploring the stories around it, and even video games about it.

02 · Video Games
"Wanting something does not give you the right to have it." — Assassin's Creed 2

Video games are my way to relax and take a break from reality. I often prefer a good game over a movie or a book, because they beautifully combine art and technology. They teach lessons, evoke a wide range of emotions, and let you experience things you'd never do in real life. I find myself arguing with friends over their choices in a game, focusing on puzzles, or riding a horse across the open world of Ancient Egypt. It's a unique form of storytelling that truly makes you part of the story.

03

My Beliefs & Views

On Education & Teaching

I believe that better education is the key to creating a better world. I have studied in a rural public school, a prestigious private school, an international boarding school, and now at a liberal arts college. Each experience taught me something different about the power of good education. Because of these experiences, I believe education should be accessible to everyone. It has become a central part of my dream to build a world-class educational institution, giving more children the chance to discover and pursue their passions and dreams, no matter where they are born. To take steps toward that dream, I have been tutoring high school students in Mongolia as much as I can, sharing everything I know and helping them grow.

On Other Things

I'm still gathering my thoughts. More of my beliefs and ideas will be added here soon.

08 · Get in touch

Let’s build something
worth understanding.

I'm seeking full-time opportunities starting in summer 2027 across software engineering, data, quantitative analysis, and research. Whether you have an opportunity, a question, or simply want to connect, my inbox is open.