---
title: "Discussion on \"How to Build and Maintain Scalable Backend Systems\" | Hashnode"
description: "Discussion on \"How to Build and Maintain Scalable Backend Systems\". Real lessons from a checkout outage — on databases, caching, idempotency, and what actually breaks under load"
url: "https://hashnode.com/posts/how-to-build-and-maintain-scalable-backend-systems/6aa7e350a965ce38bdf8841b"
---

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# [How to Build and Maintain Scalable Backend Systems](https://mittal-tech.hashnode.dev/how-to-build-and-maintain-scalable-backend-systems?utm_source=hashnode&utm_medium=feed)

Real lessons from a checkout outage — on databases, caching, idempotency, and what actually breaks under load

Sep 14 · 6 min read · mittal-tech.hashnode.dev  
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-   [#scalable-backend-systems](https://hashnode.com/tag/scalable-backend-systems)
-   [#backend-architecture](https://hashnode.com/tag/backend-architecture)
-   [#database-scaling](https://hashnode.com/tag/database-scaling)
-   [#system-design](https://hashnode.com/tag/system-design)
-   [#distributed-systems](https://hashnode.com/tag/distributed-systems)

## Written by

[Mittal Technologies](https://hashnode.com/@mittaltechnologies)

@mittaltechnologies

  
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Building scalable web solutions, clean code systems, and performance-driven digital experiences.

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