Architecture Articles

  • rebuilding-messaging-how-we-built-for-extensibility

    Rebuilding messaging: How we built for extensibility

    August 20, 2020

    In the previous blog posts of our “Rebuilding messaging” series, we shared the process of how we designed the system from high-level product and engineering requirements, and how we bootstrapped the data. In this post, we’ll explore why we made extensibility a core aspect of our messaging platform, what that meant for our partner teams, and how we got it done....

  • rebuilding-messaging-how-we-bootstrapped-our-platform

    Rebuilding messaging: How we bootstrapped our platform

    July 21, 2020

    Co-authors: Pradhan Cadabam and Jingxuan (Rex) Zhang Messaging has been a core part of Linkedin since the day we launched and our system behind it has evolved tremendously over the past 17 years. However, the architecture of our messaging backend largely remained unchanged until a recent ground-up overhaul. In the second part of our “Rebuilding messaging” series...

  • designing-our-new-messaging-system-title-card

    Rebuilding messaging: How we designed our new system

    June 15, 2020

    Co-authors: Tyler Grant, Armen Hamstra, Cliff Snyder Over the last five years, the number of messages sent on LinkedIn has quadrupled. Whether it’s to connect with former colleagues or discuss new opportunities, messaging is core to how our members connect on the platform. As LinkedIn grew, our original email-based messaging system expanded and evolved to not...

  • diagram-showing-the-architecture-of-identity-services

    How we reduced latency and cost-to-serve by merging two...

    April 22, 2020

    Co-authors: Xiang Zhang, Estella Pham, and Ke Wu Identity services are critical systems that serve data on profile and member settings...

  • architecture-of-insearch

    InSearch: LinkedIn’s new message search platform

    March 17, 2020

    Co-authors: Suruchi Shah and Hari Shankar The rise of instant messaging has changed how we communicate. Compared to the back-and-forth...

  • profilehighlights1

    Rebuilding the Profile Highlights System at LinkedIn

    February 27, 2019

    LinkedIn’s mission is to connect the world’s professionals to make them more productive and successful. Building an active community...