Oliver Ni

Work

Cognition
Member of Technical Staff · January 2026 – Present
Building Devin, the AI software engineer.
Jane Street
Software Engineering Intern · May – August 2024
Enhanced firm-wide statistical analysis service and built readiness monitoring with rolling updates for internal infrastructure management system.
CS 162: Operating Systems
Undergraduate Course Staff 1 · January – May 2024
Taught 400+ students operating systems concepts through office hours, review sessions, and online discussion.
Apple
Hardware Technology Intern · June – August 2023
Designed and built unified internal platform for wireless simulation data processing and visualization, including a specialized query language.

Community

Berkeley Math Tournament
Technology Lead · December 2020 – Present
Tournament Director · July – December 2025
Largest student-run math tournament in the world, reaching 4,000+ high school and middle school students annually.
Open Computing Facility
Site Manager · July 2023 – April 2025
Administered Linux infrastructure serving petabytes of data annually for 80,000+ students and faculty. Architected new bare-metal Kubernetes infrastructure and introduced NixOS-based desktop systems.

Projects

Pokétwo
Python · Kubernetes · MongoDB · Redis
Pokémon-themed game chatbot with 5 million users across 1 million communities, backed by a distributed Kubernetes cluster handling 10,000+ requests per second.
ContestDojo
TypeScript · React · Next.js · Remix · Firebase
Online math competition platform with 30,000+ users, hosting competitions for Berkeley Math Tournament and Johns Hopkins Math Tournament.