# Monolith decomposition for Fielddesk

> Extracted billing and notifications from a monolith into services without downtime.

URL: https://freelance.adscaled.media/freelancers/tomasz-kowalczyk/work/monolith-decomposition-for-fielddesk

Extracted billing and notifications from a monolith into services without downtime. A case study by Tomasz Kowalczyk, Backend Engineer (Go & PostgreSQL).

## Challenge

Fielddesk, a field service software company, deployed everything as one application. A bug in email templates could take down checkout, and deploys took 40 minutes.

## Solution

I extracted billing and notifications into separate services behind clear interfaces, using the strangler pattern and an outbox table to publish events reliably. The core app became smaller and deploys faster.

[View Tomasz Kowalczyk’s profile](https://freelance.adscaled.media/freelancers/tomasz-kowalczyk)

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