Robotics · autonomy · systems

Software for autonomous systems.

I'm Joseph Marra, a Georgia Tech CS student building robotics software, embedded control systems, and reliable interfaces between them.

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Atlanta, GA
Georgia Tech CS 🐝 · 2028

Selected work

Robotics and
software projects.

Projects across autonomy, embedded control, computer vision, and collaborative product building.

Flagship project

01 — Autonomous robotics platform

Paesano

A holonomic indoor robot with a ROS 2/C++ autonomy stack. A Raspberry Pi 5 handles planning and estimation; a Pico runs a 50 Hz cascaded motor controller. The goal was a robot I could measure, debug, and improve on real hardware.

Perception & pose

LD19 LiDAR, BNO085 IMU, wheel encoders, EKF fusion, and a particle-filter localizer written from scratch.

Motion & planning

Mecanum drive control, spline trajectories, LQR path tracking, A* planning, and frontier exploration.

Tested on hardware

Completed 9/9 navigation routes; rosbag analysis measured 0.9 cm mean cross-track and 0.6 cm final-position error.

Built end to end

Custom C++ ROS 2 nodes, embedded firmware, simulation, and a SwiftUI app with a FastAPI/WebSocket bridge.

Technical writeup Source code

Hardware demo

View on YouTube

Computer vision

Vision-based target tracking

A camera-to-actuator loop: OpenCV detects a target and streams position updates to an Arduino pan-tilt controller for smooth, real-time centering.

AI ATL 2025

SWISHHH!

A live NBA prediction game combining real-time game data, webcam gestures, and AI-driven interaction.

Winner · PrizePicks Track + Matt Steele Track

Read project

Robotech hackathon

Cosmic Collector

A Mars-inspired autonomous cave-navigation robot built under pressure with mecanum drive, vision, LiDAR, IMU, ROS navigation, and ESP32 firmware.

Read project

Background

Experience

Honors student at Georgia Tech studying computer science, with concentrations in Intelligence and Devices.

University Rover Challenge

RoboJackets · RoboNav

Software Lead

May 2026 — Present

Leading 10–15 student engineers rebuilding a legacy ROS 2 rover autonomy stack for URC. I coordinate localization, perception, navigation, controls, simulation, integration, and team milestones.

ROS 2LocalizationPerceptionNavigationGazebo

View RoboNav repository

Professional experience

PrizePicks

Software Engineering Intern

Summer 2026

Built the PrizePicks Wins Feed and led delivery across backend, mobile, product, and analytics.

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Skills

Technical toolkit

Core robotics stack

C++

ROS 2

Python

Linux

Embedded

Robotics & autonomy

Gazebo, localization, EKF, LiDAR, IMU, odometry, path planning, controls

Embedded systems

Raspberry Pi, Pico / RP2040, microcontrollers, I²C, firmware, sensor integration

Additional software

Docker

Git

TypeScript

Java

Kotlin

Ruby

Rails

FastAPI

Contact

Get in touch.

jmarra6@gatech.edu