# Source candidate shortlists from Slack job ads with Coresignal: n8n workflow

> Started by an event in a connected app, and works across Slack. It hands the judgement calls to Claude.

Source: https://millionrounds.com/workflow/source-candidate-shortlists-from-slack-job-ads-with-coresign (Millionrounds; every figure on the page links to its filing or article)

[Automation library](https://millionrounds.com/workflows) · [Hiring](https://millionrounds.com/workflows?category=Hiring#library)

# Source candidate shortlists from Slack job ads with Coresignal

Started by an event in a connected app, and works across Slack. It hands the judgement calls to Claude. 18 steps, 1 loop or waits: a working afternoon to understand properly.

Medium Calls a model: Claude

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fsource-candidate-shortlists-from-slack-job-ads-with-coresign)

**18 steps** Medium: a working afternoon

**0** Branches: places the flow splits

**1** Loop or waits

**1** Service it connects to

## The flow

Starts it 1 Model 3 Logic 8 Service 6

The steps in the order they run, from what starts it.

- 1 **When Job Ad Posted on Slack** Slack trigger *Starts it*
- 2 **Claude Model for Language Processing** Lm Chat Anthropic *Model*
- 3 **Parse AI Output Filters** Output Parser Structured *Model*
- 4 **Set Job Candidates Limit** Set *Logic*
- 5 **AI Extract Search Criteria** Chain Llm *Model*
- 6 **Extract Job URL from Message** Code *Logic*
- 7 **Build Employee Search Query** Code *Logic*
- 8 **Deduplicate Job Ads** Remove Duplicates *Logic*
- 9 **Search Employees in Coresignal** Coresignal *Service*
- 10 **Loop Over Job Listings** Split In Batches *Logic*
- 11 **Select Top Employee IDs** Code *Logic*
- 12 **Fetch Job Details from Coresignal** Coresignal *Service*
- 13 **Post Acknowledgement on Slack** Slack *Service*
- 14 **Fetch Employee Details** Coresignal *Service*
- 15 **Extract Job ID** Code *Logic*
- 16 **Format Employees Shortlist** Code *Logic*
- 17 **Retrieve Job Data from Coresignal** Coresignal *Service*
- 18 **Post Employee Shortlist to Slack** Slack *Service*

## How it's built

- **Starts on:** An event in a connected app
- **Steps:** 18, 1 loop or waits
- **Size:** Medium: a working afternoon
- **Connects to:** Slack
- **Model:** Claude

## Questions

What does it need to run?

An n8n account, plus your own Slack account, and a key for Claude. You connect your own accounts after importing it; none are included.

What starts it?

It starts on an event in a connected app.

Does it use AI?

Yes. It calls Claude. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Plan an afternoon. 18 steps is enough that you should read each one before running it.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

**Before you run it**

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 18 steps before you point it at anything that matters.

## Run it in n8n

- **Create your n8n account** Free to start. n8n is where the workflow runs. [Create an n8n account ↗](https://millionrounds.com/n8n)
- **Download the workflow** Free with a Millionrounds account. [Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fsource-candidate-shortlists-from-slack-job-ads-with-coresign)
- **Paste it into n8n** Open a new workflow in n8n and paste. Then connect your own accounts.

Stored with the author's traces removed: canvas notes, instance identifiers, saved credential names and any live document they had left behind.

## Connects to

Each opens the other workflows that use it.

[Slack](https://millionrounds.com/workflows?service=Slack#library)

## Workflows like it

Also hiring, with the same services where possible, closest in size first.

- [**Manage recruitment tasks in Slack with Recrutei ATS and OpenAI** 18 steps · calls a model · Slack](https://millionrounds.com/workflow/manage-recruitment-tasks-in-slack-with-recrutei-ats-and-open)
- [**Screen rental applicants with Telegram and OpenAI** 18 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/screen-rental-applicants-with-telegram-and-openai)
- [**Lonescale hiring signal - send leads to lemlist and HubSpot** 18 steps · HubSpot, Slack](https://millionrounds.com/workflow/lonescale-hiring-signal-send-leads-to-lemlist-and-hubspot)
- [**AI resume screening & evaluation for HR with OpenAI** 17 steps · calls a model · Google Drive, Google Sheets](https://millionrounds.com/workflow/ai-resume-screening-and-evaluation-for-hr-with-openai)
- [**Automate job applicant screening with OpenAI and Gmail** 17 steps · calls a model · Gmail, Google Sheets](https://millionrounds.com/workflow/automate-job-applicant-screening-with-openai-and-gmail)
- [**Automate recruitment with OpenAI and Airtable** 19 steps · calls a model · Airtable, Email](https://millionrounds.com/workflow/automate-recruitment-with-openai-and-airtable)