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Marcelo Cortes has been shared in 9 public circles

AuthorFollowersDateUsers in CircleCommentsReshares+1Links
Markos Giannopoulos5,491Geeks rule! // +CircleCount has added a new tag system (see announcement here http://bit.ly/15XaDov). Thousands of profiles have been tagged already, so here are the top (by number of followers) geek-tagged plussers (full list at http://bit.ly/134FoFN) The top ten: 1) +Robert Scoble 2) +Amanda Blain 3) +Darya Pino Rose 4) +Michelle Marie 5) +Brian Matiash 6) +Wick Sakit 7) +Joe Azure 8) +Keith Barrett 9) +Derek Ross 10) +Ahmed Zeeshan  For other rankings see also - Most popular geeks by comments/+1's/shares http://bit.ly/16SAddw- Most engaging geeks http://bit.ly/15XdZYm #circleshare   #circlesunday   #geeks  2013-07-21 15:19:0049018412CC G+
Sara Ataie23,050This is a very important Circle that I haven't shared at all.... Hope you enjoy it and find it as fun and interesting as I have!!! #Geek 2012-06-30 18:34:56493115CC G+
Jaana Nyström50,117Google 3 by Jaana -circleHere is circle 3 / 8 of Google employees on Google+The first circle with explanation: https://plus.google.com/u/0/107742059751171695340/posts/5TMQbd48fPVYou are notified because you are in this circle.The circle in circlecount.com http://www.circlecount.com/sharedcircle/?id=z13my1wwhqr5uzzi404cd1ea5yric3njxj0#Google #circleshare #Jaanatip2012-06-08 18:30:42921110CC G+
Domingo Rogers494Welcome to Thursday - Today I wanted to share a circle I've been growing slowly ever since I got started with Google+ as a 1st Generation Adopter. I've aptly titled this circle Googlers. It mostly has those that are of course employees that work at Google, but also includes the pages of some Google products. Some share more information than others, but all are worth while to include in your circles.Do you have any other Googlers that you would recommend for this Circle?2012-03-29 13:20:1470000CC G+
hannah davis0here's a circle of computer geeks. see what you can grab from them!hannah davis shared a circle with you.2011-10-12 15:02:25495002CC G+
Robert Scoble161,698A circle of geeks (part II). Here's almost 1,000 active geeks. Programmers, developers, and highly technical people. Here's K-Z. Really great list of geeky/tecnical folks. Put them in their own circle so they don't overwhelm the folks you've hand selected. As always, if you find people who aren't active (a few have snuck through) or who aren't good, let me know and I'll remove them.Also, if you think you should be on the list, let me know! I'm still adding more.Robert Scoble shared a circle with you.2011-10-12 03:16:034941006360CC G+
Marco Meerman0I have made a 500+ circle of Googlers (Engineers, VP's, Productmanagers, etc) that i now share. Too bad there is a limit in the number of people you can share.Very interesting stories they have to tell. I find it a highly informative circle, hence, i follow what Googlers do (and launch).A tribute to Googlers, thanks to +Andy Hertzfeld #SharedCircles+Robert Scoble Something for you?Marco Meerman heeft een kring met je gedeeld.2011-09-27 08:29:12250100CC G+
Ulimmeh-Hannibal Ezekiel0Sharing my Google Engineer/Employee Circle...Ulimmeh-Hannibal Ezekiel shared a circle with you.2011-09-27 07:11:2120000CC G+
Tom Bielecki2,208Here is my Google Employee circle!Great for finding out about new features, celebrity hangouts, and moreTom Bielecki shared a circle with you.2011-09-27 00:20:41164513CC G+


Average numbers for the latest posts (max. 50 posts, posted within the last 4 weeks)

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Latest posts

2014-04-11 06:26:45 (0 comments, 0 reshares, 2 +1s)

Basic HTTP/1.1 with Okio

In a post on The Corner on Wednesday I claimed that OkHttp is one of the most challenging projects I've worked on. Here's the proof that I was lying: an HTTP request in 12 lines of code.

    Socket socket = new Socket("square.com", 80);

    BufferedSink sink = Okio.buffer(Okio.sink(socket));
    sink.timeout().timeout(5, TimeUnit.SECONDS);
    sink.writeUtf8("GET / HTTP/1.1\r\n");
    sink.writeUtf8("Host: square.com\r\n");

    BufferedSource source = Okio.buffer(Okio.source(socket));
    source.timeout().timeout(5, TimeUnit.SECONDS);
    for (String line; (line = source.readUtf8LineStrict()) != null; ) {

One neat method inthis code sample is read... more »

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2014-03-21 17:15:12 (0 comments, 0 reshares, 1 +1s)

Come by Communitech today for the Square charity bake sale. All proceeds go to http://blessingsinabackpack.ca

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2014-03-11 13:55:02 (1 comments, 1 reshares, 5 +1s)

Live in Waterloo Ontario? Write beautiful Java? The Cash team at Square is hiring. Drop me a line, jwilson@squareup.com.

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2014-02-19 22:35:55 (0 comments, 0 reshares, 3 +1s)

Swipe (RED), fight AIDS. Introducing the SQUA(RED) Reader: http://mkt.com/red

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2014-02-13 21:24:56 (0 comments, 0 reshares, 2 +1s)

We're so convinced that you'll like it, we'll give you a dollar to try our amazing product.


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2014-02-01 14:49:23 (3 comments, 0 reshares, 3 +1s)

Chip in for Super Bowl party supplies with Square Cash and be Sunday's MVP! http://square.com/cash 

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2014-01-17 23:11:20 (0 comments, 0 reshares, 2 +1s)

It's great to see that Square Cash has been nominated by 148 Apps as one of the Most Innovative Apps.

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2013-12-09 15:11:45 (0 comments, 0 reshares, 2 +1s)

Swiping never felt so good. Introducing the new Square Reader: http://squareup.com/

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2013-11-21 01:33:55 (0 comments, 0 reshares, 6 +1s)

Brazil vs Chile in Toronto at Skydome

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2013-11-07 14:55:23 (0 comments, 0 reshares, 0 +1s)

“Everyone has a smartphone, everyone has a debit card, everyone has an email. All we’re doing is creating a wrapper of an app that makes using those things as simple as possible.”

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2013-11-04 18:34:57 (1 comments, 1 reshares, 2 +1s)

The boss seems to be happy with our work in Waterloo :D

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2013-10-16 01:32:47 (10 comments, 3 reshares, 20 +1s)

Very happy to finally share Square Cash with everyone. Very proud of my team at Square both in Waterloo and San Francisco!


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2013-07-11 17:35:57 (1 comments, 0 reshares, 10 +1s)

The Waterloo Square team has a new home in the Breithaupt Block!

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2013-06-19 14:11:19 (1 comments, 0 reshares, 5 +1s)

Couldn't agree more!

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2013-05-25 04:35:56 (3 comments, 0 reshares, 5 +1s)

Trying Google glass

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2013-05-07 19:16:04 (0 comments, 0 reshares, 1 +1s)

Dagger 1.0

"On one older device that we measured, switching to Dagger shaved seconds from our app’s start up time."


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2013-05-07 02:53:10 (0 comments, 0 reshares, 1 +1s)

The open sourcing efforts by +Square, Inc. has been really calm lately. But you know what they say about the calm...


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2013-05-07 02:52:20 (2 comments, 0 reshares, 5 +1s)

OkHttp 1.0

"At Square, we want it all: advanced features that work right on every device. We also want to ship new tech without waiting for new Android releases."


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2013-05-01 18:13:01 (5 comments, 0 reshares, 9 +1s)

Lunch at the Square Canada office!

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2013-03-16 00:47:42 (5 comments, 0 reshares, 17 +1s)

On top of the World @ Big White, BC.

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2013-02-22 16:47:26 (2 comments, 1 reshares, 5 +1s)

Bacon waffles for breakfast at Square this morning!

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2013-02-12 19:37:13 (0 comments, 0 reshares, 1 +1s)

My new startup. Mobile chat with GIFs and YouTube videos. iPhone only for now (sorry!) but Android coming soon.


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2013-02-12 01:15:16 (0 comments, 0 reshares, 0 +1s)

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2013-02-11 18:22:59 (2 comments, 0 reshares, 4 +1s)

We just increased Square Waterloo office's productivity by at least 10% by acquiring our espresso machine.

The little happinesses in life!

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2013-02-10 17:10:51 (3 comments, 0 reshares, 7 +1s)

Some winter pictures around our house

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2013-02-07 14:14:31 (0 comments, 0 reshares, 0 +1s)


I'm speaking at AnDevCon in May. But I'm more excited to be going as an attendee. These are the sessions I'm most excited about:

* Bluetooth LE by +Dario Laverde.
* Multimedia APIs by +Doug Stevenson.
* OpenGL ES by +Robert Green.
* Save the Battery by +Moe Tanabian.
* Leveraging Open Source by +Jake Wharton.

My own class is a deep dive on Android HTTP. It'll cover debugging, testing, and several optimizations.

The conference is $1,500 at the door. But if you register before March 8 and use WILSON as your promo code, that drops to $900. If you'd like to attend an Android conference this year, now's a very good time to ask your boss!

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2013-02-05 14:10:00 (0 comments, 0 reshares, 0 +1s)

An Open Source Tool Box

Writing polished Android apps is difficult. At Square, we've promoted lots of code from internal-only to open source. Some parts of the process:

Our best projects address one problem only, and address it completely.

We make lots of little touches & tweaks. For example, with Android FEST we changed the package name to be consistent the Guava and Joda Time extensions.

We like clever names like Otto and Tape.

Today +Jake Wharton promoted JavaWriter to Square's open source tool box. It's a humble tool for generating code. No templates and no ASTs!

See Square's open source projects on GitHub:

Photo courtesy toolstop: http://www.flickr.com/photos/toolstop/4420180838/

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2013-02-01 19:48:35 (0 comments, 0 reshares, 0 +1s)

ProtoParser - A basic parser for .proto schema declarations.

Protocol buffers allow you to define an API that both your clients and servers can not only agree on, but compile against. While the protoc generated code is usually enough, sometimes additional infrastructure is needed.

ProtoParser is a library which parses the schema into a simple object model. Using these objects you can generate things like additional helper code or documentation.

This library is actually useful even if you don't want to use protocol buffers directly. At Square we have projects where the schema is used to dictate JSON formats. This library generates the POJOs and helper code which both clients and server can compile against ensuring they never disagree on formats.

This library started as the brain child of +Jesse Wilson and +Alex Chow.

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2013-01-31 22:35:48 (0 comments, 0 reshares, 5 +1s)

Today I made my first contribution ever to an open source project!


Thanks +Jesse Wilson for all the help!

2013-01-31 04:18:02 (0 comments, 0 reshares, 2 +1s)

My wife is on the board of directors of our sons' baseball league. One of their big money makers is their snack shack, where they sell burgers, nachos, Gatorade, etc. This has been a cash business, but tonight she convinced the board to adopt Square so they can accept credit cards. They are going to buy a couple of iPad Minis to use as registers, as the inventory management aspects of Square are also very valuable to them, and these features are only available on the iPad version of Square. All in all it should be pretty exciting to see how an infusion of technology will affect a simple little business like a little league snack shack.

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2013-01-24 17:07:12 (0 comments, 0 reshares, 1 +1s)

2 Programmers 1 Spec

SPDY is a neat protocol that lets you share a single socket for multiple HTTP requests. I know of two Java implementations of the latest spec, spdy/3. It's amazing how completely different these codebases are:

1450 lines of code across 7 files.
This implementation uses blocking I/O with InputStreams and OutputStreams.


6000 lines of code across 82 files.
This implementation uses non-blocking I/O with Selector and ByteBuffers. It also supports spdy/2.

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2013-01-23 17:14:39 (0 comments, 0 reshares, 0 +1s)

I have an Otto success story that people here may be interested in. 

TapChat[1] creates a persistent websocket while the app is visible, managed by a service bound to the foreground activity. Previously, I was attempting to juggle a bunch of different events and state just to load an initial UI:

  * Activity lifecycle
  * Fragment lifecycle
  * Service lifecycle (onServiceConnected)
  * Service socket state (disconnected, connecting, connected)
  * Service sync state (loading, loaded)

All these things can happen in any order, and this quickly turned into a complete nightmare of race conditions. With the latest release I rewrote all the event handling using Otto. I now only need to subscribe to a single ServiceLoadedEvent in my fragment or activity and don't have to worry about anything else.

For chat events (message received, etc) Iwas p... more »

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2013-01-18 22:02:03 (5 comments, 0 reshares, 15 +1s)

LinkedIn is making fun of me... 

2013-01-17 21:09:34 (0 comments, 0 reshares, 1 +1s)

Just tagged and released FEST Android 1.0.0, a set of FEST extensions designed for testing Android!

Writing tests is not the most glamorous part of developing an Android application but it is an invaluable one. Using libaries like JUnit and FEST provide a great starting point for writing tests. This library is an extension of FEST which aims to make it even easier to test Android.

Using FEST Android allows you to quickly and declaratively test properties on various classes.


Assertions are provided for almost every Android class you'd ever want to test inside your instrumentation tests. If you find an assertion for a class or method missing, please send a pull request!
"But Ja... more »

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2013-01-14 01:53:02 (2 comments, 0 reshares, 2 +1s)

Mais umas fotos de San Francisco

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2013-01-13 21:53:55 (0 comments, 0 reshares, 0 +1s)


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2013-01-13 00:48:32 (0 comments, 0 reshares, 1 +1s)

Nice walk around San Francisco today

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2012-11-09 16:17:35 (0 comments, 0 reshares, 1 +1s)

Photo Sphere collection

An amazing collection of Photo Spheres captured using Nexus 4 by my Google colleagues +Evan Rapoport, +Sascha Haeberling, +Sacha Arnoud, +Lockey McGrath.

(Make sure to drag the photos around!)

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2012-11-09 14:55:42 (5 comments, 1 reshares, 3 +1s)

Great japanese dinner at Japango in Toronto!

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2012-11-06 16:24:31 (0 comments, 0 reshares, 0 +1s)

For iPhone users out there, the two minute video in this article is worth the watch. http://updates.gizmodo.com/post/34656322615/google-voice-search-vs-siri-whos-the-best

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2012-10-28 02:35:45 (0 comments, 0 reshares, 1 +1s)

Stanford vs WSU

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2012-10-23 05:08:09 (0 comments, 0 reshares, 0 +1s)

Best decorations I've seen! Life size! 

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2012-10-05 19:23:02 (5 comments, 0 reshares, 13 +1s)

Yay! :-)

2012-09-28 16:02:46 (0 comments, 0 reshares, 0 +1s)

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2012-09-16 23:44:24 (8 comments, 0 reshares, 4 +1s)

Hey, I just launched the Kickstarter campaign for the Cobra Wallet! Trying to raise enough money for mass-producing it, so hope you can back it, like it, +1 it, tweet it, etc!

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2012-08-16 18:30:23 (2 comments, 0 reshares, 5 +1s)

Amazing afternoon for a boat ride in Toronto

2012-07-09 01:14:38 (0 comments, 0 reshares, 0 +1s)

Many of you may already know that July 9th is my last day at Google. After nearly 7 years, Google decided to shut down its Atlanta engineering efforts. I start my next job on July 16th (but was asked not to say who I'll be working for until then).

For the techie people: my last year at Google, many of us in Atlanta worked on a project that was ultimately cancelled, concurrent with the office shutdown. However, on this 4th of July, I'm happy to say that one of the things I'll be celebrating is that we were able to liberate portions of our last year of work as a new open source project. 

It's called "Collide" (collaborative IDE), and is a web-based collaborative code editor. What we pushed out is extremely stripped down right now, but the most interesting tech stuff around collaborative editing is all there. Long term, we hope it will serve as a catalyst for... more »

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2012-06-29 16:48:36 (0 comments, 0 reshares, 4 +1s)

Its looking good

2012-05-25 15:40:43 (4 comments, 0 reshares, 7 +1s)

I am amazed by the new G+ for Android. I keep playing with my stream just to see the UX effects. WOW is all I can say.

Great job G+ team.

+Ben Eidelson +Ujjwal Singh and everyone else.

2012-04-27 07:26:36 (3 comments, 0 reshares, 5 +1s)

Hacking away...


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Marcelo Cortes