David Santamaria

Software Engineer • CS @ University of Central Florida

Freelance Software Engineer

Jan 2025 - Present

  • Performed data annotation and evaluation for Scale AI, supporting model fine-tuning for software engineer and reasoning related tasks
  • Wrote dashboard.zeroentropy.dev for ZeroEntropy (YC W27)
  • Provided 1:1 tutoring and mentoring for students learning undergraduate Computer Science and Mathematics
Google logo

Software Engineer Intern - Network Doctor Team

May 2024 - Aug 2024Sunnyvale, CA

  • Intern at the Network Doctor team - detecting and diagnosing network anomalies across Google’s production fleet
  • Implemented a data-processing pipeline in C++ to validate historical GCP telemetry data snapshots against cloud records and report anomolous activity.
  • Orchestrated production deployment using pod batch scheduling, providing immediate visibility to the team's data quality efforts.
VertexGraph logo

Software Engineer Intern

May 2022 - Aug 2022Remote

  • Fixed bugs and improved code quality
  • Wrote unit tests for core functionality
  • Created comprehensive documentation
University of Central Florida logo

University of Central Florida

Jan 2021 - Dec 2024Orlando, FL

HorizonOS

A hobby operating system written in C targeting x86 and x86_64

  • Working bootloader, interrupts, paging, keyboard driver, and kernel land shell on x86.

RAG Chatbot

Retrieval-Augmented Generation chatbot

  • A chatbot with RAG functionality allowing users to perform queries on unstructured data such as PDFs
  • Built with TypeScript, Python, and the ZeroEntropy API

Chime Chat Application

Full-stack chat application with CLI tool

  • Full stack chat application styled after Discord to practice system design with Redis and NoSQL databases
  • Text over TCP/IP, file transfer implemented in UDP and custom protocol emulating QUIC for fast transfers

Home Lab

Self-hosted infrastructure

  • Self-hosted home lab running a personal site on Next.js and additional services
  • Temporary file transfer, custom wiki, self hosted github

Ternary Search

Custom competitive programming contest platform

  • A site that allows a small group of users to participate in custom competitive programming style contests
  • Spiritual successor to binarysearch.com

Proficient

C++CPythonLinuxGitBashSQLJavaScriptTypeScript

Experience With

JavaHTMLCSSReactRedisNext.jsRAGVector DBDockerNoSQL

UCF Programming Team

Fall 2021 - May 2022

  • ICPC Southeast Regional Contest 2022, Division 2 - 1st Place
  • Studied algorithms, data structures, and competitive programming

Other Competitions

  • AMC Stetson 2016, 2017 - 10th, 2nd Place
  • HPE CodeWars Houston Texas (Novice Division): 2016, 2017 - 12th, 26th Place