What role did each founder play in the development of Instagram?

Instagram was founded by Kevin Systrom and Mike Krieger. Here's a brief overview of the roles each founder played in the development of Instagram:

1. Kevin Systrom: As the CEO and co-founder of Instagram, Systrom played a crucial role in the development of the app. He came up with the initial idea for Instagram, which was inspired by his love for photography and his desire to create a platform that made it easy to share photos with friends and family. Systrom led the product development and design of Instagram, and he was also responsible for securing funding and building partnerships with other companies.

2. Mike Krieger: As the CTO and co-founder of Instagram, Krieger played a critical role in building the app's infrastructure and technology. He led the development of Instagram's Android app and was responsible for scaling the app's backend systems to support its rapid growth. Krieger also worked on product development and design, and he was instrumental in introducing new features and functionalities to the app.

Together, Systrom and Krieger worked closely to build Instagram from a small startup into a successful social media platform with millions of users. They both had complementary skills and expertise, which allowed them to collaborate effectively and create a product that resonated with users. In 2018, both founders left the company due to differences with Facebook's leadership and a desire to explore new projects.