Most Active Speaker

PJ Hagerty

PJ Hagerty

Developer Focused, Community Oriented

Buffalo, New York, United States

PJ is the founder of, creator of, and a board member of Open Sourcing Mental Illness ( He is an organizer of DevOps Days Buffalo, CodeDaze, and ElixirDaze. PJ is a developer, writer, speaker, musician, and Community Advocate. He is known to travel the world speaking about programming and the way people think and interact. He is also known for wearing hats.


  • Most Active Speaker 2023
  • Most Active Speaker 2022

Area of Expertise

  • Information & Communications Technology


  • Open Source Software
  • Analytics and Big Data
  • ruby
  • Development
  • Web Development
  • devrel
  • Web APIs
  • apis
  • Coding

A Glimpse Into Accessibility

When we build applications for the modern world, we think of our users as much as possible. But what about those who are on the fringes, outside of the average.

This talk will take a look at accessibility, how to design applications with users with disabilities in mind.

The Pony Express and How Technology Moves Fast

It's been said many times - technology moves fast. As do the philosophies behind it. This isn't new - the Pony Express lasted only 18 months before being replaced by telegraph. Why is turnover so fast? What are the benefits and pitfalls to this turnover? Where is the value in what we do?

The Ethics of Open Source

Every part of Open Source is meant to be for the community, but often the question comes up about how best to use and support it. Do we give money to Open Source projects and languages? Do we Open Source our non-business critical code? Do we take it all because it's free? Let's look at the right, and less right ways of interacting with Open Source projects.

This talk will look at how best to use, interact with, and create Open Source projects. The focus will be on what value we bring to the communities we work in, not in what Open Source does for ourselves or the organizations we work for.

Proactive Programming

The feedback loop is one of the most important parts of programming. We write tests and try to mitigate all possible problems, but until we deploy our code, it's hard to tell what "works" and what doesn't. In this talk, we'll discuss methods used to ensure everything works the way it should before deploying to production.

Pop Songs and Programming for Fun and Profit

Ever wonder what it takes to live in the world of an open source developer? What if everything you can learn comes from the world of pop songs?

We can learn a lot of from music, but in this talk, let's listen and see how we can be better developers.

Finding Frank - A Look at using the Spotify API

APIs are ubiquitous, but they can also be fun! In this talk, we'll take a look at using the Spotify API and Developer Portal to put together a simple app - finding Frank Sinatra's top 5 song. We'll learn about using APIs, how to connect when Authentication is necessary, and what to do with an API payload.

Coding and the Mozart Effect

Most developers code to music...some are even musicians themselves. Is it possible to streamline workflow by adjusting how we listen to music and what music we listen to?

Studies have shown that exposure to certain kinds of music can help to develop cognitive strength and improve performance of tasks. This talk will explore those studies and show what sort of things can be done to improve the listeners environment and help people to create better code.

Stir Trek 2023 Sessionize Event

May 2023 Columbus, Ohio, United States

Boston Code Camp 34 Sessionize Event

April 2023 Burlington, Massachusetts, United States

State of Open Con 23 Sessionize Event

February 2023 London, United Kingdom

Little Rock Tech Fest 2022 Sessionize Event

October 2022 Little Rock, Arkansas, United States

DevConf 2022 Sessionize Event

September 2022 Łódź, Poland

Code PaLOUsa 2022 Sessionize Event

August 2022 Louisville, Kentucky, United States

Beer City Code 2022 Sessionize Event

August 2022 Grand Rapids, Michigan, United States

WeAreDevelopers World Congress 2022 Sessionize Event

June 2022 Berlin, Germany

CodeStock 2022 Sessionize Event

April 2022 Knoxville, Tennessee, United States

CodeMash 2022 Sessionize Event

January 2022 Sandusky, Ohio, United States

KCDC 2021 Sessionize Event

September 2021 Kansas City, Missouri, United States

DevOpsDays Zurich 2021 Sessionize Event

September 2021 Winterthur, Switzerland

DevOpsDays Zurich 2020 Sessionize Event

April 2021 Winterthur, Switzerland

DevFest WI 2020 Sessionize Event

October 2020

Little Rock Tech Fest 2019 Sessionize Event

October 2019 Little Rock, Arkansas, United States

Music City Tech 2019 Sessionize Event

September 2019 Nashville, Tennessee, United States

CodeMash 2019 Sessionize Event

January 2019 Sandusky, Ohio, United States

PJ Hagerty

Developer Focused, Community Oriented

Buffalo, New York, United States