Automation library · Hiring

Automated candidate screening & response with OpenAI

Started by an arriving email, and works across Gmail, Google Sheets and Slack. It puts OpenAI behind a retrieval step, so answers are drawn from documents you supply rather than from the model alone. 19 steps, 2 branches: a working afternoon to understand properly.

MediumCalls a model: OpenAIRetrieval

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19 stepsMedium: a working afternoon
2Branches: places the flow splits
0Loops or waits
3Services it connects to

The flow

Starts it 1Model 4Logic 6Service 8

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

  1. 1Trigger: New Candidate Email (Gmail)Gmail triggerStarts it
  2. 2Fetch HR Job RequirementsGoogle Sheets ToolService
  3. 3Parse AI Output (Structured JSON)Output Parser StructuredModel
  4. 4AI Model: GPT-4 Screening EngineLm Chat Open AiModel
  5. 5AI Memory: Candidate ContextMemory Buffer WindowModel
  6. 6Parse Email MetadataSetLogic
  7. 7Check for Resume AttachmentIfLogic
  8. 8AI Agent: Candidate EvaluatorAgentModel
  9. 9Merge Email + Resume DataMergeLogic
  10. 10Upload Resume (Mistral OCR)Http RequestService
  11. 11Map AI Results to FieldsSetLogic
  12. 12Fetch Signed Resume URLHttp RequestService
  13. 13Filter by AI Score / RecommendationIfLogic
  14. 14Extract Resume Text (Mistral OCR)Http RequestService
  15. 15Update Candidate Record (Sheets)Google SheetsService
  16. 16Send Shortlist Confirmation (Email)GmailService
  17. 17Notify HR: High-Scoring Candidate (Slack)SlackService
  18. 18Send Rejection EmailGmailService
  19. 19Store Resume TextSetLogic

How it's built

Starts on
An arriving email
Steps
19, with 2 branches
Size
Medium: a working afternoon
Connects to
Gmail, Google Sheets, Slack
Model
OpenAI
Retrieval
Answers are drawn from documents you supply, not from the model alone

Questions

What does it need to run?

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

What starts it?

It starts on an arriving email.

Does it use AI?

Yes. It calls OpenAI. Its answers draw on documents you give it, not on the model alone. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Plan an afternoon. 19 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 19 steps before you point it at anything that matters.