> ## Documentation Index
> Fetch the complete documentation index at: https://help.arco.careers/llms.txt
> Use this file to discover all available pages before exploring further.

# Use a Different CV for One Job Application in arco

> Learn how to use per-job CV variants in arco to tailor your application without changing your master CV or Board scores.

Sometimes the CV you want to use for a particular role is not your master CV. arco supports that without you having to overwrite anything. This matters when you are pursuing roles across more than one discipline or seniority band, and a single document cannot serve both well.

## How it works

arco works at two levels:

* **Master CV**: Global. Scores every job on your Board.
* **Per-job CV**: Applies to one specific role inside the AI Coach.

Inside the AI Coach for a specific job, you can supply a different CV to work from. Guided Optimization will then audit and improve that version for that role.

## What it does and does not affect

| It does                                                         | It does not                                |
| --------------------------------------------------------------- | ------------------------------------------ |
| Change which CV Guided Optimization works from for this one job | Replace your master CV                     |
|                                                                 | Change your match score on the Board       |
|                                                                 | Rescore any other job                      |
|                                                                 | Affect anything outside this specific role |

The separation is deliberate. Your Board scores stay comparable across every job, because they are all measured against the same master CV. A per-job variant is a working document for one application, not a change to how arco assesses you.

## When to use a per-job variant vs. replacing your master CV

* **Use a per-job variant** when you are tailoring for one application, or applying to roles across different disciplines.
* **Replace your master CV** when your main CV has genuinely changed, such as a new role or a significant rewrite.

## Related articles

* [Guided Optimization](/ai-coach/guided-optimization)
* [How your CV affects your scores](/your-cv/how-your-cv-affects-scores)
* [Replacing or removing your CV](/your-cv/replacing-or-removing-your-cv)