Past Meetup

WhatsApp's Secret Sauce: Erlang from behind the Trenches by Francesco Cesarini

This Meetup is past

85 people went

Groupon Palo Alto

220 Portage Avenue · Palo Alto, CA

How to find us

Please note: Entrance is on the back side of the building (see map below)

Location image of event venue


Erlang is a programming language designed for the Internet Age, although it pre-dates the Web. It is a language designed for multi-core computers, although it pre-dates them too. It is a "beacon language", to quote Haskell guru Simon Peyton-Jones, in that it more clearly than any other language demonstrates the benefits of concurrency-oriented programming.

In this talk, Francesco will introduce Erlang from behind the trenches, looking at how its history influenced its constructs. He will be doing so from a personal prospective, with anecdotes from his time as an intern at the Ericsson computer science lab at a time when the language was being heavily influenced and later when working on the OTP R1 release.

About the Speaker

Francesco Cesarini is the founder of Erlang Solutions Ltd. He has used Erlang on a daily basis since 1995, starting as an intern at Ericsson’s computer science laboratory, the birthplace of Erlang. He moved on to Ericsson’s Erlang training and consulting arm working on the first release of OTP, applying it to turnkey solutions and flagship telecom applications. In 1999, soon after Erlang was released as open source, he founded Erlang Solutions, who have become the world leaders in Erlang based consulting, contracting, training and systems development. Francesco has worked in major Erlang based projects both within and outside Ericsson, and as Technical Director, has led the development and consulting teams at Erlang Solutions.

He is also the co-author of 'Erlang Programming' and 'Designing for Scalability with Erlang/OTP' both published by O'Reilly and lectures at Oxford University.

Introduction by Bjarne Dacker:

Bjarne will be introducing Francesco at Thursday's talk. He founded and managed the Computer Science Lab at Ericsson from beginning to end[masked]. ( (
Before that, Bjarne was a programmer and systems designer at Ericsson and responsible for two programming languages, PL163 and EriPascal.

He holds a Tekn.lic. from the Royal Institute of Technology in Stockholm and is a member of the Royal Swedish Academy of the Engineering Sciences.


5:45 PM - Networking and Food

6:15 PM - Talk Begins

7:00 PM - QA and Networking

8:00 PM - Events End


Entrance is where the highlighted "G" is located.

Directions to the venue from different cities/Caltrain:

San Jose : Directions (,+CA/220+Portage+Avenue,+Palo+Alto,+CA/@37.3811395,-122.0916503,12z/data=!3m1!4b1!4m14!4m13!1m5!1m1!1s0x808fcae48af93ff5:0xb99d8c0aca9f717b!2m2!1d-121.8863286!2d37.3382082!1m5!1m1!1s0x808fbaf3d1cf73fb:0x1a51eeaff4d6554a!2m2!1d-122.1361428!2d37.4240927!3e0)

San Francisco : Directions (,+CA/220+Portage+Avenue,+Palo+Alto,+CA/@37.5820889,-122.5574044,10z/data=!3m1!4b1!4m13!4m12!1m5!1m1!1s0x80859a6d00690021:0x4a501367f076adff!2m2!1d-122.4194155!2d37.7749295!1m5!1m1!1s0x808fbaf3d1cf73fb:0x1a51eeaff4d6554a!2m2!1d-122.1361428!2d37.4240927)

California Avenue Caltrain station: Directions (,+Palo+Alto,+CA/220+Portage+Avenue,+Palo+Alto,+CA+94306/@37.4265959,-122.1409686,17z/data=!3m1!4b1!4m14!4m13!1m5!1m1!1s0x808fbae4e8b97a8d:0x5b30376333c71f57!2m2!1d-122.1419072!2d37.4291617!1m5!1m1!1s0x808fbaf3d1cf73fb:0x1a51eeaff4d6554a!2m2!1d-122.1361428!2d37.4240927!3e2)

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