HelloSign + Greenhouse
Automate Offer Letters and Document Signing Between HelloSign and Greenhouse
Connect your eSignature workflows with your ATS to cut manual handoffs and get candidates through the offer stage faster.
Why integrate HelloSign and Greenhouse?
HelloSign and Greenhouse each do one thing well — Greenhouse manages your candidate pipeline, HelloSign gets documents signed quickly and securely. But when they're not connected, recruiters end up manually exporting candidate data, drafting offer letters by hand, and checking two different tabs to track signature status. Integrating HelloSign with Greenhouse through tray.ai lets hiring teams automate the entire document lifecycle, from offer generation to signed acceptance, without the copy-paste busywork.
Automate & integrate HelloSign & Greenhouse
Use case
Automated Offer Letter Generation and Sending
When a candidate moves to the Offer stage in Greenhouse, tray.ai pulls their name, role, compensation details, and start date to populate a HelloSign offer letter template. The document goes straight to the candidate for eSignature without any recruiter involvement. Every offer goes out within minutes of the hiring decision.
Use case
Signed Document Sync Back to Greenhouse Candidate Profile
Once a candidate completes their eSignature in HelloSign, tray.ai attaches the signed PDF to the candidate's Greenhouse profile and updates their application status. Recruiters and hiring managers see exactly where every candidate stands without logging into HelloSign separately. Your ATS stays clean, complete, and audit-ready.
Use case
Offer Declined or Expired Workflow Handling
When a HelloSign signature request expires or a candidate declines to sign, tray.ai triggers a status update in Greenhouse and notifies the assigned recruiter via email or Slack. Declined offers don't linger in limbo, and your team can quickly reopen the requisition or re-engage backup candidates.
Use case
New Hire Document Packet Automation
Beyond offer letters, tray.ai can orchestrate a full new hire document packet in HelloSign — NDAs, background check authorizations, equipment agreements — the moment a candidate's offer is accepted in Greenhouse. Documents are sent sequentially or in parallel based on your workflow logic, and each signed document routes back to the correct candidate record. New hires arrive on day one with all paperwork already done.
Use case
Recruiter and Hiring Manager Signature Collection
Many offer letters need a countersignature from a hiring manager or HR rep before going to the candidate. tray.ai automates the internal signing workflow in HelloSign based on offer data from Greenhouse, routing documents to the right approvers in the correct order. Once everyone internal has signed, the offer goes to the candidate automatically.
Use case
Compliance Reporting and Audit Trail Generation
For organizations in regulated industries, tray.ai can periodically sync HelloSign signature audit logs with Greenhouse candidate records to produce a complete hiring compliance report. Every document view, signature event, and timestamp is captured and tied to the relevant candidate and role, making internal audits far less painful.
Use case
Candidate Reminder and Re-engagement Automation
If a candidate hasn't signed their offer letter within a set window, tray.ai automatically triggers a reminder email via HelloSign and logs a note in Greenhouse flagging the delay. Recruiters get a notification so they can also reach out personally if needed. Offers don't go cold because something slipped through the cracks.
Get started with HelloSign & Greenhouse integration today
HelloSign & Greenhouse Challenges
What challenges are there when working with HelloSign & Greenhouse and how will using Tray.ai help?
Challenge
Matching HelloSign Documents to the Correct Greenhouse Candidate
When multiple offer letters are in flight at once, linking a completed HelloSign document back to the right Greenhouse candidate without human involvement is technically tricky — and messy if done manually.
How Tray.ai Can Help:
tray.ai lets you embed Greenhouse candidate or application IDs as custom metadata in HelloSign signature requests when they're created. When the signed webhook fires, tray.ai reads that metadata to make an exact match and route the document to the correct Greenhouse profile.
Challenge
Handling Variable Offer Letter Templates Across Roles and Regions
Most companies have multiple offer letter templates in HelloSign — full-time versus contract, domestic versus international, different departments — and picking the right one automatically isn't straightforward without some logic behind it.
How Tray.ai Can Help:
tray.ai's workflow logic lets you build conditional branching based on Greenhouse candidate fields like job type, department, or office location. The right HelloSign template is selected and populated dynamically, so every candidate gets the right document without manual template management.
Challenge
Keeping Greenhouse Stage Accurate When Signing Is Delayed
If a candidate takes several days to sign, the Greenhouse pipeline can look stalled, making it hard for recruiting managers to forecast headcount or decide how much attention to give other candidates.
How Tray.ai Can Help:
tray.ai runs scheduled polling workflows that check HelloSign for pending signature statuses and update Greenhouse with timestamped notes and stage flags. Dashboards and reports in Greenhouse always reflect the actual state of every open offer.
Challenge
Managing Multi-Party Signing Sequences Without Manual Coordination
Offer letters that need signatures from multiple internal stakeholders before reaching the candidate must follow a strict order. Tracking who's signed, who's next, and when to send to the candidate quickly becomes a coordination headache.
How Tray.ai Can Help:
tray.ai chains HelloSign events in the correct order. When one signer finishes, tray.ai automatically triggers the next request — whether that's another internal approver or the candidate — so the sequence is always respected and no step gets skipped.
Challenge
Ensuring GDPR and Data Residency Compliance for Candidate Documents
Passing candidate personal data between Greenhouse and HelloSign raises real compliance questions, especially for organizations hiring in the EU where GDPR governs how personal data is processed and stored by third-party services.
How Tray.ai Can Help:
tray.ai gives you full control over what data passes between systems. You can redact, mask, or limit PII fields shared with HelloSign to only what's necessary for signing. All data flows are logged and auditable within tray.ai, which supports your compliance documentation under GDPR and similar regulations.
Start using our pre-built HelloSign & Greenhouse templates today
Start from scratch or use one of our pre-built HelloSign & Greenhouse templates to quickly solve your most common use cases.
HelloSign & Greenhouse Templates
Find pre-built HelloSign & Greenhouse solutions for common use cases
Template
Greenhouse Offer Stage → HelloSign Offer Letter
Automatically generates and sends a pre-configured HelloSign offer letter template whenever a candidate moves to the Offer stage in Greenhouse, populated with the candidate's name, title, salary, and start date.
Steps:
- Trigger: Candidate stage changes to 'Offer' in Greenhouse
- Fetch candidate details (name, role, compensation, start date) from Greenhouse API
- Populate and send HelloSign offer letter template to candidate email on file
Connectors Used: Greenhouse, HelloSign
Template
HelloSign Signed Document → Greenhouse Profile Attachment
When a HelloSign signature request is completed, the signed PDF is automatically downloaded and attached to the corresponding candidate's profile in Greenhouse, and the application status is updated to reflect acceptance.
Steps:
- Trigger: HelloSign webhook fires on 'signature_request_all_signed' event
- Match the signing request to the correct Greenhouse candidate using metadata or email
- Upload signed PDF as an attachment to the Greenhouse candidate profile and update stage
Connectors Used: HelloSign, Greenhouse
Template
New Hire Document Packet Trigger on Offer Acceptance
Detects when an offer is accepted in Greenhouse and automatically sends a sequence of onboarding documents through HelloSign, including NDAs, equipment agreements, and background check authorizations.
Steps:
- Trigger: Greenhouse candidate status updated to 'Offer Accepted'
- Compile list of required onboarding documents based on role or department
- Send each document as a separate HelloSign signature request or bundled packet to the new hire
Connectors Used: Greenhouse, HelloSign
Template
Unsigned Offer Alert and Greenhouse Status Update
Monitors HelloSign for signature requests that remain unsigned beyond a configurable deadline, then updates the Greenhouse candidate record and notifies the responsible recruiter via Slack or email.
Steps:
- Scheduled trigger: Checks HelloSign for signature requests older than X days with status 'pending'
- Update the associated Greenhouse candidate application with a 'Follow-Up Required' note
- Send a Slack or email notification to the recruiter assigned in Greenhouse
Connectors Used: HelloSign, Greenhouse
Template
Internal Approver Countersignature Workflow
Automates the internal countersignature process by routing an offer letter to the designated hiring manager in HelloSign before forwarding to the candidate, so every offer is authorized before it goes out.
Steps:
- Trigger: New offer created in Greenhouse with hiring manager details
- Send HelloSign signature request to hiring manager for countersignature
- Upon internal signing completion, forward the countersigned document to the candidate for final acceptance
Connectors Used: Greenhouse, HelloSign
Template
Declined Offer Reopen and Recruiter Notification
When a candidate declines or fails to sign an offer in HelloSign, tray.ai updates the Greenhouse application stage, reopens the job requisition if configured, and alerts the recruiter to take action.
Steps:
- Trigger: HelloSign webhook fires on 'signature_request_declined' or expiration event
- Update Greenhouse candidate stage to 'Offer Declined' and log a timestamped note
- Send recruiter notification via email or Slack with candidate name, role, and next-step suggestions
Connectors Used: HelloSign, Greenhouse