--- title: ezCater Engineering & Product Blog --- [![ezCater](https://engineering.ezcater.com/hs-fs/hubfs/RGB-ezCater-large.png?width=102&height=26&name=RGB-ezCater-large.png "ezCater")](http://www.ezcater.com) ## [Saying goodbye to emotion](https://engineering.ezcater.com/saying-goodbye-to-emotion) ## [Multi-armed Bandit Experimentation](https://engineering.ezcater.com/multi-armed-bandit-experimentation) ## [Migrate, transform, and backfill data with zero downtime](https://engineering.ezcater.com/migrate-transform-and-backfill-data-with-zero-downtime) ## [You're not in the zone!](https://engineering.ezcater.com/youre-not-in-the-zone) ## [ezCater Code Culture](https://engineering.ezcater.com/code-culture) ## [The Long, Long Journey of Connecting to Snowflake with Ruby](https://engineering.ezcater.com/the-long-long-journey-of-connecting-to-snowflake-with-ruby) ## [The case against React snapshot testing](https://engineering.ezcater.com/the-case-against-react-snapshot-testing) ## [How ezCater Engineers Deploy to Kubernetes](https://engineering.ezcater.com/how-ezcater-engineers-deploy-to-kubernetes) ## [Turning Designers Into Data Nerds](https://engineering.ezcater.com/turning-designers-into-data-nerds) ## [Machine Learning LTV (Part 2)](https://engineering.ezcater.com/machine-learning-ltv) ## [Prediction of Lifetime Value / LTV (Part 1)](https://engineering.ezcater.com/early-prediction-of-customer-lifetime-value) ## [ezCater devs weigh in on women in Boston tech](https://engineering.ezcater.com/ezcater-devs-weigh-in-on-women-in-boston-tech) ## [Macgyver-ing for Marketers: How to Blow Minds with the Power of Hubspot Integrations](https://engineering.ezcater.com/macgyver-ing-for-marketers-how-to-blow-minds-with-the-power-of-hubspot-integrations) ## [Measuring AB Tests: SQL for p-value graphs in Redshift](https://engineering.ezcater.com/measuring-ab-tests-sql-for-pvalue-graphs-in-redshift) ## [Deciding When to Call an AB Test: p-value Graphs](https://engineering.ezcater.com/deciding-when-to-call-an-ab-test-p-value-graphs) ## [AB Testing at ezCater Part 2: Tracking Experiments & The Exposure Event](https://engineering.ezcater.com/ab-testing-at-ezcater-part-2-tracking-experiments-the-exposure-event) ## [AB Testing at ezCater Part 1: Event Taxonomy & Warehousing](https://engineering.ezcater.com/ezexperiments-ab-testing-at-ezcater-part-1-event-taxonomy-warehousing) ## [Zero to Production - Part 1: Architecture](https://engineering.ezcater.com/zero-to-production-part-1-architecture) ### About ezCater We're the #1 online – and the only nationwide – marketplace for business catering in the United States. We make it easy to order food online for your office. From routine office lunches to offsite client meetings, from 5 to 2,000 people, we have a solution for you. ezCater connects business people with over 50,000 reliable local caterers and restaurants across the U.S. ### ezCater is hiring! We’re always looking for highly skilled full stack and iOS engineers to help execute our technology goals while riding this rocket ship of growth. Our people are terrifically talented straight-shooters who love what they do. And everyone is generous and kind, too — we have a strict no jerk policy. [![View ezCater Opportunities](https://no-cache.hubspot.com/cta/default/1703639/47d2a3d8-ffb7-4b28-8c3a-35bdb6d0605b.png)](https://cta-redirect.hubspot.com/cta/redirect/1703639/47d2a3d8-ffb7-4b28-8c3a-35bdb6d0605b) ### Recent Posts ### Posts by Tag - [experiments (6)](https://engineering.ezcater.com/topic/experiments) - [data warehousing (4)](https://engineering.ezcater.com/topic/data-warehousing) - [engineering (4)](https://engineering.ezcater.com/topic/engineering) - [ezcater (4)](https://engineering.ezcater.com/topic/ezcater) - [ruby (4)](https://engineering.ezcater.com/topic/ruby) - [activerecord (2)](https://engineering.ezcater.com/topic/activerecord) - [coding (2)](https://engineering.ezcater.com/topic/coding) - [development (2)](https://engineering.ezcater.com/topic/development) - [github (2)](https://engineering.ezcater.com/topic/github) - [javascript (2)](https://engineering.ezcater.com/topic/javascript) - [ltv (2)](https://engineering.ezcater.com/topic/ltv) - [machine learning (2)](https://engineering.ezcater.com/topic/machine-learning) - [rails (2)](https://engineering.ezcater.com/topic/rails) - [react (2)](https://engineering.ezcater.com/topic/react) - [redshift (2)](https://engineering.ezcater.com/topic/redshift) - [women\_in\_tech (2)](https://engineering.ezcater.com/topic/women_in_tech) - [active record (1)](https://engineering.ezcater.com/topic/active-record) - [creating (1)](https://engineering.ezcater.com/topic/creating) - [culture (1)](https://engineering.ezcater.com/topic/culture) - [database (1)](https://engineering.ezcater.com/topic/database) - [design (1)](https://engineering.ezcater.com/topic/design) - [devops (1)](https://engineering.ezcater.com/topic/devops) - [dynamodb (1)](https://engineering.ezcater.com/topic/dynamodb) - [growth (1)](https://engineering.ezcater.com/topic/growth) - [hubspot (1)](https://engineering.ezcater.com/topic/hubspot) - [jest (1)](https://engineering.ezcater.com/topic/jest) - [kafka (1)](https://engineering.ezcater.com/topic/kafka) - [kubernetes (1)](https://engineering.ezcater.com/topic/kubernetes) - [migrations (1)](https://engineering.ezcater.com/topic/migrations) - [snapshot testing (1)](https://engineering.ezcater.com/topic/snapshot-testing) - [snowflake (1)](https://engineering.ezcater.com/topic/snowflake) - [sql (1)](https://engineering.ezcater.com/topic/sql) - [time (1)](https://engineering.ezcater.com/topic/time) - [time zones (1)](https://engineering.ezcater.com/topic/time-zones) - [timeofday (1)](https://engineering.ezcater.com/topic/timeofday) - [unit testing (1)](https://engineering.ezcater.com/topic/unit-testing) - [values (1)](https://engineering.ezcater.com/topic/values) see all ### Subscribe to Email Updates © 2026 ezCater, Inc. | [Terms & Conditions](https://www.ezcater.com/terms_of_use) | [Privacy](https://www.ezcater.com/privacy_policy)