computer science senior at CSUS · databases & query engines
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I’m Ethan Tran,

I’m a Computer Science senior at CSU Sacramento focused on database systems, especially query engines and query optimization. I’m interested in how databases plan and execute queries, organize data, and use memory efficiently to make data-intensive workloads faster and more reliable.

As a Software Engineer Intern at Perio Specialist, I build database-backed systems for dental implant inventory across networked workstations. My work includes application-level replication, transactional updates, idempotent writes, optimistic concurrency checks, and offline queues to keep inventory data consistent through conflicting edits and network outages.

I contribute to Apache DataFusion and PostgreSQL, working on query planning, optimizer behavior, and execution correctness. I enjoy tracing performance regressions, benchmarking changes, and understanding the trade-offs behind database internals. Rust is my favorite language to work in, alongside C++, C, Python, Go, and SQL.

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education
California State University, Sacramento
Computer Science, B.S.
September 2025 - December 2027
Santa Rosa Junior College
Computer Science
September 2023 - August 2025
work experience
Perio Specialist logo
Perio Specialist
Software Engineer Intern
July 2026 - Present

Building a replicated dental implant inventory system with transactional updates, idempotent writes, optimistic concurrency checks, offline queues, and automated backups.

Pfizer-hosted Externship Program logo
Pfizer-hosted Externship Program
AI Engineering Extern
June 2026 - July 2026
Trinity Technology Group logo
Trinity Technology Group
Transportation Security Officer
July 2021 - June 2025
projects
A RAG-based deployable pipeline for ingesting and querying Github Documentation for LLMs, used here!
Python
Qdrant
Langchain
HuggingFace
PyTorch
FastAPI
Docker
AWS
An effecient No-Limit Texas Hold'em Postflop Poker Solver implementing GPU-accelerated Counterfactual Regret Minimization
C++
Cuda
FLTK
infiniportal
Github
May 2024 - August 2024
A full-stack web platform with Discord-verified chatbot for community engagement + utilities
Python
Javascript
Postgres
SQL
Quart
Docker
Google Cloud
API Gateway + Rate limiter
Github
June 2026 - July 2026
A configurable production API gateway enforcing per-plan rate limits balanced across multiple instances
Go
Nginx
Redis
Docker
AWS
Portfolio Website
Github
June 2026 - June 2026
This portfolio website!
React
Next
Tailwind CSS
TypeScript
Vercel
Belevator
Github
June 2025 - April 2026
A cross-platform deterministic physics-based mobile game, available on iOS and Android
Rust
Godot
SpacetimeDB
SQL
iOS API
Android API
OAuth
dubu.pro
Github
July 2023 - July 2023
A visual coaching and analytics tool for the game Omega Strikers, using jQuery as a drawing tool.
Javascript
HTML
CSS
Chemical Recipe Search Engine
Github
October 2022 - November 2022
A high-performance search engine for chemical recipes for SpaceStation13
Rust
MySQL
Spacestation13 API