Processing Payments At Scale

at August 23rd, 2016

Groupon recently announced gross billings of $1,492,882,000 for Q2 2016 — that’s about $17M our systems charged every single day this quarter. There is a lot of complexity associated with processing such volume, which we’re going to explore in this blog post. Setup overview Before going into details, let’s first review how our payment system… Read More


Geekfest Palo Alto: Intro to Geospatial in Redis 3.2 by Dave Nielsen of Redis Labs

at April 26th, 2016

We are pleased to be hosting our 4th Geekfest talk in Palo Alto this Thursday (April 28th). This talk is open to Groupon employees as well as tech enthusiasts across the Bay Area. If interested, read details below and RSVP on our Meetup.com page:http://www.meetup.com/Geekfest-Palo-Alto/events/230497052/ Schedule: 6:30pm Networking 7:00pm Geospatial Talk 8:00pm Q&A 8:30pm End Description:… Read More


Groupon’s Workflow Service, “Backbeat”, Now Open Source

By
at April 14th, 2016

Groupon operates globally in 28 countries. In order to stay financially nimble at this scale, the company needs automated processes for just about everything. Groupon’s Financial Engineering Developers (FED) team developed and maintain our system for automating merchant payments. The system has paid millions of merchants billions of dollars. One of the tools that helped… Read More


Girl Scouts explore the world of STEM at Groupon’s 4th Scout Out Engineering

at February 15th, 2016

This President’s Day, we welcomed 100 3rd – 6th grade scouts to Groupon, 85 in our Chicago office and 15 in Palo Alto, with the support of almost 50 employee volunteers from the Engineering and Product teams. Throughout the day, the girls got to work with our technical employees to walk through activities on Code.org,… Read More


Geekfest Palo Alto Meetup: Machine Learning from Lukas Biewald

at January 15th, 2016

Groupon’s Palo Alto office is excited to be the newest chapter participating in Geekfest! Our first talk in this monthly series will be from Lukas Biewald of Crowdflower. Lukas will be speaking about machine learning, active learning and human in the loop computing; exploring how artificial intelligence systems interact with human intelligence systems. The event… Read More


Groupon adds Redis support to the open source Presto analytic engine.

at October 22nd, 2015

Groupon recently added support for Redis to Facebook’s Presto exabyte scale SQL query engine. Presto is an open source distributed SQL query engine for running interactive analytic queries against various data sources. Redis is an open-source in-memory key-value data server. The Redis connector allows querying of live data stored in Redis via SQL queries. This… Read More


Groupon Hosting Meetup on Networking in iOS

at October 20th, 2015

We are thrilled to be hosting this month’s Meetup on Networking in iOS NSSURLSEssion and NSStream. The featured speaker will be Manjula Jonnalagadda and she will go in depth about NSURLSession, how it works as well as NSStream APIs and when to use them. There will be plenty of time for questions, networking and tasty… Read More


Celebrating Women in Engineering at Grace Hopper

at October 14th, 2015

2015 marks the third year of Groupon’s attendance at the Grace Hopper Celebration of Women in Computing (GHC). Each year, we have encouraged women within our Engineering and Product teams to participate in the conference, which brings together attendees from across the globe in a forum that celebrates diversity and women’s achievements in tech. Groupon… Read More


Give a Girl Scout access to technology, and she can change the world

at October 12th, 2015

Today, we opened our doors to welcome eighty-five of Chicagoland’s best and brightest fifth and sixth graders from the Girl Scouts of Greater Chicago and Northwest Indiana for our third annual Scout Out Engineering event. Thirty-five of Groupon’s technical employees joined in on the fun as volunteers and worked with the girls in a hands-on… Read More


Prepping to ‘Scout Out’ with Groupon!

at October 5th, 2015

For the third year in a row, Groupon is proud to partner with the Girl Scouts of Greater Chicago and Northwest Indiana to Scout Out Engineering. This fall, we’ll be opening the doors of our Chicago headquarters to 75 of the Scout’s best and brightest 5th and 6th graders to join us for a morning… Read More