Sean Mullins

Senior Analyst at Toast.

I work on analytics and AI at Toast in New York. Previously I was an AI Engineer at OpenExchange. Outside of work I make music as Goons, play tennis, tinker with audio, and read.

Now Toast · New York Previously OpenExchange Focus AI, analytics, audio

Experience

Senior Analyst

Toast

Apr 2025 – Present

AI, analytics, retention, and churn.

OpenExchange

AI Engineer

Apr 2024 – Apr 2025

LLMs, automation, and Python.

Financial Analyst

May 2021 – Sep 2022

Reporting, finance, and NLP.

Data Analyst

Aug 2020 – May 2021

ETL, SQL, and BI.

Data Analyst

Greystone

Oct 2022 – May 2023

Python, Power BI, and healthcare loans.

Selected work

2025SoundCloud

Re-Release Radar

A release radar for SoundCloud.

2024Python · ML

Tr4der

An algorithmic trading library.

2024Audio · DSP

Mix50

A Python library for mixing and DJ transitions.

2023ML · Speech

Demographic inference from speech

Inferring demographics from audio.

2023Audio · AI

SongSpy

Detecting AI-generated music.

2023Markets

ReverseMomentum

How events move equities.

2014 –Music

Goons

A personal music project.

Education

Fordham University

M.S., Data Science

Boston College

B.S., Finance