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Hey, I'm Jaxon 🤙

Born and Raised Hawaii, island of O'ahu, I'm currently studying CS + Math at Washington University in St. Louis, with a focus on backend development and robotic systems.

Hobbies: Coding, Hiking, Fishing, Gaming

Fav Languages: Go, C++, Python


If my webpage is too long, checkout my resume:


Connect With Me 👋

The journey so far

My Path

2026
Capital One logo

Capital One

Incoming Software Engineering Intern

06/2026 — 08/2026

Joining Capital One's Cloud team as a Software Engineering Intern.

Tesla logo

Tesla

Software Engineering Intern

Fremont, CA · 01/2026 — 05/2026

Distributed Systems, Energy Backend Infra, and AI Agents.

2025
WashU McKelvey Engineering logo

WashU McKelvey Engineering

System Software Teaching Assistant

St. Louis, MO · 08/2025 — Present

Assist students with x86 assembly reading, C code, and memory concepts.

Spectrum logo

Spectrum

Software Engineering Intern

St. Louis, MO · 05/2025 — 08/2025

Service Delivery team — built cloud backend controllers in Salesforce Java.

WashU IT — Devstac logo

WashU IT — Devstac

Software Engineer

St. Louis, MO · 04/2025 — Present

Building full-stack software for internal and external clients, from web apps to mobile apps.

Key skills

Key skills

  • Node.js + TypeScript
  • API Development
  • Supabase Database
  • React
2024
Health XR logo

Health XR

Founding Software Engineer

St. Louis, MO · 09/2024 — 01/2025

Built the first prototype of a Meta Quest XR healthcare assistant in Unity + C#, winning #1 at St. Louis Startup Tech Week.

Key features built

Key features built

  • Integrated reality environment in Unity
  • Wrist button in the virtual world wired to a FastAPI backend
  • AI analysis of medical documents rendered into the 3D world
Flashcardify.ai logo

Flashcardify.ai

Software Engineering Intern

St. Louis, MO · 09/2024 — 01/2025

Built out backend infrastructure for flashcard decks with Node.js and Supabase.

Key features built

Key features built

  • Deck privacy controls (public / private visibility)
  • Full-text search using Supabase
  • Tagging system for deck organization and discovery
  • Search matching by deck names and metadata
WashU McKelvey Engineering logo

WashU McKelvey Engineering

Data Structures & Algorithms Teaching Assistant

St. Louis, MO · 01/2025 — 12/2025

Guided students through data structures, algorithm implementation, and runtime analysis.

2023

Education

Washington University in St. Louis logo

Washington University in St. Louis

B.S. — CS + Math, and Entrepreneurship

GPA 3.76 · 08/2023 — Expected 05/2027

Pursuing CS + Math with a focus on systems and algorithms, involved in entrepreneurship and student organizations on campus.

Notable classes & clubs

Notable classes

  • Cloud Computing
  • Intro to Cryptography
  • System Software
  • Parallel and Concurrent Programming
  • Linear Algebra (proof-based)
  • Object-Oriented Programming (C++)

Campus involvement

  • WashU Robotics (Project Lead)
  • Google Developer Group (Core Lead)
  • LNYF (Multimedia)

2019 — Present

A Lifelong Journey of Learning

Aspiring Software Engineer

What began as a simple curiosity for making a video game during the COVID-19 pandemic ignited my passion for all things software — and a lifelong drive to keep learning and building.

🌺

Where it all began · Oʻahu, Hawaiʻi


What I build with

My Tech Stack

01

Distributed & Backend Systems

Fault-tolerant services and backend infrastructure — distributed systems and energy-platform work at Tesla, cloud backend controllers at Spectrum, and real-time APIs that hold up under load.

GoJavaNode.jsWebSocketsReal-time SystemsDockerREST APIs
02

Robotics & Low-Level Systems

Project lead for WashU Robotics, paired with a deep dive into the machine itself — ROS control, x86 assembly, and the concurrency and memory model underneath.

CC++ROSx86 AssemblyConcurrencyMemory Systems
03

Full-Stack Product

End-to-end products people actually use — typed React front ends over well-designed APIs, databases, and auth, shipped from prototype to production.

TypeScriptReactNext.jsSupabasePrismaTailwind
04

Applied AI

Language models wired into real products — AI agents at Tesla, medical-document analysis inside an XR assistant, and LLM-backed features end to end.

PythonAI AgentsLLM IntegrationFastAPI

Languages I reach for

C++GoCPythonTypeScriptJavaC#
Website Made by Jaxon Poentis
Website developed with Next.js and Typescript + MongoDB database. Background is made with Three.js.