Queue-it’s Virtual Waiting Room System Design With Product Architect Moji Sarooghi Smooth Scaling: System Design For High Traffic podcast

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Smooth Scaling: System Design for High Traffic »
Queue-it’s Virtual Waiting Room System Design with Product Architect Moji Sarooghi

7d ago 38:35

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In this episode, Moji Sarooghi, Distinguished Product Architect at Queue-it, breaks down the design principles and distributed systems behind Queue-it’s virtual waiting room. He explains how the team handles massive traffic spikes, upholds strict first-in, first-out fairness on request, and maintains reliability at a scale that would overwhelm most platforms. Moji also covers the shift from server-side integrations to Edge compute, how Safety Net protects against unexpected peaks, and why simplicity and failure-oriented design drive every architectural choice. A clear, technical exploration of scaling responsibly when millions depend on your system.

Episode page

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(00:00) - Intro

(01:34) - Visitor Flow: How the Waiting Room Works

(03:24) - Edge vs. Server-Side Connectors

(06:10) - Why Edge Improves Simplicity & Security

(07:12) - Preventing Queue Bypass Attempts

(09:14) - Connector Types & Verification Logic

(12:04) - Safety Net: Automatic Peak Protection

(14:54) - Scheduled Waiting Rooms + Safety Net

(17:19) - FIFO at Scale

(18:57) - Estimating Wait Times at Scale

(20:40) - Designing for Reliability & High Traffic

(24:38) - How Outflow Is Calculated

(29:07) - Queue-It Token & Visitor Verification

(31:02) - Cookies & Secure Access

(32:35) - Key AWS Services in the Architecture

(34:57) - Future: Multi-Cloud, Edge, & Bring Your Own Proxy

(37:59) - Outro

Mojtaba Sarooghi is a Distinguished Product Architect at Queue-it. Moji was one of the company’s first employees, starting his journey as a software developer over 10 years ago. He is highly experienced with AWS services, product and architectural design, managing developer teams, and defining and executing on product vision.

This podcast is hosted by José Quaresma, researched by Joseph Thwaites and produced by Perseu Mandillo.

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