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.

Wix Engineering Newsletter, Issue 78: Cutting Costs, Boosting Resilience, and Smarter AI

Packed with engineering insights, developer stories, and tools to help you build better, faster, and smarter. Don't miss it, subscribe...

1 hour ago2 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 216 min read

Engineering Resilience: Behind the Scenes of Wix’s Global Platform

Hi, I’m Ben Chen, an Engineering Group Manager at Wix. Over the years, my team and I have faced countless challenges managing one of the...

Aug 185 min read

How Wix Cut 50% of Its Data Platform Costs - Without Sacrificing Performance (Part 1)

In this post, we share the journey of optimizing the data platform at Wix, which led to a 50% reduction in monthly data platform costs ....

Jul 317 min read

AI-Driven Leadership: Navigating Change, Driving Innovation. Yaniv Even-Haim and Aviran Mordo [Video]

What does it take to lead through chaos, scale engineering teams, and navigate one of the biggest technological shifts of our time? Watch...

Jul 141 min read

The 95% Breakthrough: Ditching RAG for MAG in Wix's AI-Powered Data Discovery

Before You Read If you haven’t read our previous article - " Solving Data Discovery at Scale: How Wix Uses RAG and Multi-Agent Systems...

Jul 94 min read

From 60 Repos to One: How Wix Tackled Monorepo Migration - Part2

Please notice : This is Part 2 of a series of articles by Zachi Nachshon . Read the Part 1 to learn how Wix began migrating 60...

Jul 35 min read

Advancing Enterprise AI: How Wix is Democratizing RAG Evaluation

The Challenge Retrieval-Augmented Generation (RAG) has emerged as one of the most important design patterns in modern AI systems,...

Jun 304 min read

The GenAI Transformation at Wix [Video]

Wix’s AI journey began with bold exploration of a fast-evolving technology - and developed into a clear, company-wide strategy. In this...

Jun 91 min read

Developer Platform: Build and Ownership [Video]

How do we scale Wix and still keep dev velocity and standards? Tomer Pilossof (Head of DevEx) and Ethan Pogrebizsky (CTO of DevEx)...

Jun 31 min read

From 60 Repos to One: How Wix Tackled Monorepo Migration - Part1

At Wix, we faced a challenge that will sound familiar to many developers: managing an ever-growing backend codebase spread across 60...

May 287 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 226 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 126 min read

Solving Data Discovery at Scale: How Wix Uses RAG and Multi-Agent Systems to Find the Right Data Fast

Introduction Data discovery is a critical challenge in modern organizations, particularly for those adopting a data mesh approach . As...

May 58 min read

Have You Ever Tried SQLing Your Cloud? The Power of Steampipe

We, the production engineers, are probably all very familiar with this scenario : Your TL : "Can you tell me which instance type is used...

Apr 286 min read

How AI is Reshaping R&D at Wix: A Journey, Not Just an Upgrade

The AI era is no longer a distant horizon - it’s here, reshaping how we build, design, and collaborate. At Wix, we’re not just keeping...

Apr 244 min read

50x Faster and 100x Happier: How Wix Reinvented Integration Testing

Why Tests Are the Backbone of Healthy Projects In the world of software development, testing is not just a formality; it's a lifeline....

Apr 217 min read

From Chaos to Control: How We Rebuilt Reliability in a World of Microservices (Wix Engineering’s Battle-Tested Playbook)

Microservices Reliability Playbook, 2025: You can find the link to download the full PDF at the bottom of this post The Microservices...

Mar 313 min read

From Manual Nightmare to AI Automation: Fixing 2,000 Code Samples

Wix’s Velo API reference contains over 2,000 code samples. About a year ago, we introduced a syntax change to Velo that suddenly...

Mar 268 min read

Recap from Wix Engineering Conference 2024: AI, Platform Engineering and Scaling

"The more that you read, the more things you will know. The more that you learn, the more places you'll go." (Dr. Seuss) We, at Wix...

Mar 1213 min read

From Bottleneck to Breakthrough: How Wix Cut Kafka Costs by 30% with a Push-Based Consumer Proxy

In this post, I will share the story of migrating Wix’s backend services to use Kafka via a push-based consumer proxy. I’ll address the...

Feb 2611 min read

TypeScript Deep Dive: From Type System Wizardry to Type Testing Mastery

Dive into hard-won TypeScript lessons and best practices drawn from Wix Engineering's real-world development experiences. In our latest...

Feb 31 min read

The Art of Secure Search: How Wix Mastered PII Data in Vespa Search Engine

Personal Identifiable Information (PII) refers to any data that can uniquely identify an individual. Protecting PII is critical for...

Jan 155 min read

How Wix’s AI Site-Chat Redefines Chatbots with Adaptive Feedback and Dynamic Knowledge

Artificial Intelligence (AI) and Natural Language Processing (NLP) have rapidly advanced, leading to the widespread use of AI-powered...

Jan 59 min read

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