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Wix Engineering Blog
Wix engineering blog tells the story of our daily challenges and our way of solving them. Read about architecture, scaling, mobile and web development.

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When AI Becomes Your On-Call Teammate: Inside Wix's AirBot That Saves 675 Engineering Hours a Month
1. Introduction: The Challenge Understanding the engineering need for AirBot starts with recognizing the scale of the ecosystem it operates within. Wix operates a massive cloud-based development platform serving 250 million users. This generates over 4 billion HTTP transactions daily, feeding a data lake that currently holds 7 petabytes of data. To manage this volume, Wix Data Engineering maintains over 3,500 Apache Airflow pipelines (DAGs) . These pipelines handle everyth
Jan 156 min read


The Wix Engineering 2025 Review: AI, Platforms, Data, and Deep Technical Lessons-Learned
A Year of Building at Scale: Inside Wix Engineering During 2025, Wix Engineering shared deep dives, playbooks, and real-world lessons from building and operating one of the largest web platforms in the world. These stories don't start as content. They start as engineering challenges - some of the most complex, high-scale, and unforgiving challenges modern software teams face. Problems that emerge only when thousands of developers, hundreds of teams, and hundreds of millions o
Dec 28, 20259 min read


Taming Text in MySQL: How a Simple Emoji Uncovered a Complex Collation Problem
Introduction At Wix Emails we are working towards building a world-class email marketing platform along with an intuitive, fast, and reliable automated emails system. We care deeply about the quality of our products and work hard towards building a system that the users can count on. Thus, when we saw a strange but occasional error some time ago it was not a question of whether users noticed it and whether we should wait until enough people complained. We needed to fix it im
Nov 3, 202513 min read


How Wix Cut 50% of Its Data Platform Costs - Without Sacrificing Performance (Part 2)
In Part 1 ( read here ), we shared how we built the foundations for cost-efficiency at Wix’s data platform: creating visibility into...
Sep 1, 20256 min read


How Wix Slashed Spark Costs by 50% and Migrated 5,000+ Daily Workflows from EMR to EMR on EKS
Introduction At Wix, we are constantly evolving our data infrastructure to stay ahead of the curve. As our data workloads grew, we wanted...
Aug 21, 20256 min read


Introducing PlatySpark: How Wix Built the Ultimate Spark-as-a-Service Platform - Part 2
Introduction In the first part of this article (Introducing PlatySpark: How Wix Built the Ultimate Spark-as-a-Service Platform - Part 1)...
May 22, 20256 min read


Introducing PlatySpark: How Wix Built the Ultimate Spark-as-a-Service Platform - Part 1
The Challenge Managing Apache Spark applications at scale can be a daunting task, especially for large organizations with multiple data...
May 12, 20256 min read
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