Notes on software, data engineering, and the people behind the systems.https://coffeeanddata.ca/enhttps://coffeeanddata.ca/top-down-vs-bottom-up/https://coffeeanddata.ca/top-down-vs-bottom-up/Early in my career, I was lucky enough to have a mentor who had a unique way of simplifying complex ideas. One of the most crucial lessons he imparted was an understanding of…Sun, 03 Dec 2023 00:00:00 GMTmiscchatgpthttps://coffeeanddata.ca/data-warehouse-manifesto/https://coffeeanddata.ca/data-warehouse-manifesto/My approach to the Data Warehouse and how company like Shopify should think about them.Fri, 21 Jul 2023 00:00:00 GMTdata_enghttps://coffeeanddata.ca/no-longer-ds/https://coffeeanddata.ca/no-longer-ds/For the past 4.5 years I have been somewhat a data scientist at Shopify. From IC roles to different management roles, the bulk of the work was in data science. Prior to this,…Tue, 20 Dec 2022 00:00:00 GMTdata_engshopifyhttps://coffeeanddata.ca/impact/https://coffeeanddata.ca/impact/When and How to say no Internal presentation I made at Shopify earlier this year.Tue, 14 Jun 2022 00:00:00 GMTtalkshopifyhttps://coffeeanddata.ca/dear-dm/https://coffeeanddata.ca/dear-dm/A message for all the Decision Makers (DM) using data to make decisions.Sat, 30 Apr 2022 00:00:00 GMTdatahttps://coffeeanddata.ca/update-on-whistleblower/https://coffeeanddata.ca/update-on-whistleblower/Update on “Warning systems on data warehouse”Wed, 16 Mar 2022 00:00:00 GMTdatashopifyhttps://coffeeanddata.ca/PR-reviews-for-SQL-code/https://coffeeanddata.ca/PR-reviews-for-SQL-code/This is my personal guide on how I review my peer SQL code.Fri, 23 Apr 2021 00:00:00 GMTdatashopifyhttps://coffeeanddata.ca/warning-systems-on-data-warehouse/https://coffeeanddata.ca/warning-systems-on-data-warehouse/The story of how and why I built Whistleblower, a system that allows us to set warnings on any table in our environment.Fri, 29 Jan 2021 00:00:00 GMTdatashopifyhttps://coffeeanddata.ca/how-to-thrive-in-the-face-of-disruption-tips-from-shopify-data-team/https://coffeeanddata.ca/how-to-thrive-in-the-face-of-disruption-tips-from-shopify-data-team/Learn how the Data Team has helped Shopify make great decisions during COVID-19.Thu, 18 Jun 2020 00:00:00 GMTdatashopifyhttps://coffeeanddata.ca/using-data-science-to-save-money-on-my-next-trip-to-mexico/https://coffeeanddata.ca/using-data-science-to-save-money-on-my-next-trip-to-mexico/How am I using basic data work to ensure I am getting a good price on my trip.Mon, 28 Oct 2019 00:00:00 GMTdatapersohttps://coffeeanddata.ca/spark-ai-summit-2019/https://coffeeanddata.ca/spark-ai-summit-2019/My review of the latest Spark and AI Summit hosted in San Francisco on April 24th and 25th 2019.Mon, 29 Apr 2019 00:00:00 GMTdatahttps://coffeeanddata.ca/spark-join-using-regex/https://coffeeanddata.ca/spark-join-using-regex/A more technical post about how I end up efficiently JOINING 2 datasets with REGEX using a custom UDF in SPARKWed, 17 Apr 2019 00:00:00 GMTdatashopifyhttps://coffeeanddata.ca/the-data-science-pyramid/https://coffeeanddata.ca/the-data-science-pyramid/Let&8217;s not start with data science this time. Let&8217;s start with psychology. I am far from having any competence in this domain, but I remember in high school being…Wed, 26 Sep 2018 00:00:00 GMTdatahttps://coffeeanddata.ca/this-is-what-i-really-do-as-a-data-scientist/https://coffeeanddata.ca/this-is-what-i-really-do-as-a-data-scientist/Data Science is getting very popular and many people are trying to jump into the bandwagon, and this is GREAT. But many assume that data science, machine learning, plug any…Fri, 27 Apr 2018 00:00:00 GMTdataericssonhttps://coffeeanddata.ca/lossless-triplet-loss/https://coffeeanddata.ca/lossless-triplet-loss/A more efficient loss function for SiameseThu, 15 Feb 2018 00:00:00 GMTdatahttps://coffeeanddata.ca/distributions-5th-symphony/https://coffeeanddata.ca/distributions-5th-symphony/I would like to share with you a small tool I have discovered this year which is very useful; Violin Plot!Thu, 08 Feb 2018 00:00:00 GMTdatahttps://coffeeanddata.ca/machine-vs-human/https://coffeeanddata.ca/machine-vs-human/Lately at work we had the opportunity to propose new Uses Cases to develop around Ericsson Expert Analytic and data science in the operator's network. We propose to work on an…Fri, 29 Sep 2017 00:00:00 GMTericssoniothttps://coffeeanddata.ca/data-science-development-evironement/https://coffeeanddata.ca/data-science-development-evironement/Part of my task in the Data Science Team is to participate in the deployment of our development environment. This will be the first, of a series of articles about the…Mon, 31 Jul 2017 00:00:00 GMTdatamischttps://coffeeanddata.ca/kolmogorov-smirnov-test/https://coffeeanddata.ca/kolmogorov-smirnov-test/Lately, at work, we had to do a lot of unsupervised classification. We basically had to distinguish N classes from a sample population. We had a rough idea of how many classes…Thu, 06 Jul 2017 00:00:00 GMTdatahttps://coffeeanddata.ca/home-made-alarm-system-central/https://coffeeanddata.ca/home-made-alarm-system-central/Last year, my wife and I purchased our first house. The house came with a very standard alarm system installed by one of the main distributors in Montreal. As soon as I moved…Fri, 02 Jun 2017 00:00:00 GMTmiscpersoiothttps://coffeeanddata.ca/memories-should-stay-forever/https://coffeeanddata.ca/memories-should-stay-forever/Not so long ago, I had the chance to become a father. And one of the … "privilege" of having a baby is the time you have to think during all these nights when he won’t let us…Mon, 15 May 2017 00:00:00 GMTmiscpersohttps://coffeeanddata.ca/real-challenge-iot-security/https://coffeeanddata.ca/real-challenge-iot-security/About Me Before writing about my main topic. I want to take a couple of lines to introduce myself. I am an IT Engineer working since I got my bachelor’s degree (4 years ago)…Mon, 01 May 2017 00:00:00 GMTmiscericssoniot