Andy Callaghan

2025

• Marketing Jammed - York St. John

2024

• Ruby on Rails as a solo developer - PHP Leeds

2023

• Ruby on Rails app development - UoY Computer Science Society
• How I use marketing to sell Jammed - Tech York
• Tomorrow's world in Software - York College

2019

• Git Workshop

2018

• Decoupling code from Google Maps - Front End York
• Making a website performant