JOIN.com + Greenhouse integration: mirror job postings, distribute to boards, and centralize applicants
Titus Juenemann •
February 28, 2025
TL;DR
The JOIN.com + Greenhouse integration mirrors Greenhouse job postings to JOIN, distributes those jobs to free and premium boards, and forwards applicants back to Greenhouse—keeping the applicant tracking workflow centralized. Organizations with high-volume hiring, regional sourcing needs, or small recruiting teams benefit most through automated posting, expanded reach, and consolidated candidate handling. Practical setup requires a Harvest API key and an integration user; teams should standardize job templates, implement source tagging, and monitor source performance. While custom field mapping and premium board rules can require additional attention, the integration typically shortens time-to-fill, reduces manual posting work, and improves channel visibility. To accelerate candidate screening further, pair the integration with ZYTHR’s AI resume screening to automate shortlist creation and improve review accuracy.
The JOIN.com integration for Greenhouse automates job distribution and candidate forwarding so your ATS remains the single source of truth. Once connected, jobs you publish in Greenhouse are replicated on JOIN and distributed across free and paid job boards; applications submitted via JOIN are sent back into Greenhouse and updated if the candidate adds materials later. This article explains how the integration works, who benefits most, a practical setup checklist, common field mappings, monitoring tips, limitations, and measurable benefits so hiring teams can decide whether to add JOIN to their sourcing stack.
At a high level, JOIN acts as a distribution and sourcing layer that mirrors jobs from Greenhouse and pushes applicants back into Greenhouse. That means recruiting teams continue to manage job content, workflows, and hiring decisions inside Greenhouse while reaching substantially more candidates through JOIN’s network of free and premium boards.
Core features of the JOIN + Greenhouse integration
- Automated job synchronization Jobs created, updated, or archived in Greenhouse are mirrored automatically on JOIN—no manual re-posting required.
- Multi-board distribution JOIN can publish job ads to 10+ free boards by default and offer preferential pricing on 100+ premium boards, extending reach by region or role.
- Candidate synchronization Applicants who apply on JOIN are forwarded to Greenhouse immediately and their records update if they upload additional documents after the initial application.
- Centralized application handling Because applicants land in Greenhouse, recruiters use existing scorecards, interview plans, and automation without switching tools.
- Regional and language support JOIN supports multiple languages and regional boards (APAC, EMEA, North and South America), useful for globally distributed hiring.
AI resume screener for Greenhouse
ZYTHR scores every applicant automatically and surfaces the strongest candidates based on your criteria.
- Automatically screens every inbound applicant.
- See clear scores and reasons for each candidate.
- Supports recruiter judgment instead of replacing it.
- Creates a shortlist so teams spend time where it matters.
| Name | Score | Stage |
|---|---|---|
| Oliver Elderberry |
9
|
Recruiter Screen |
| Isabella Honeydew |
8
|
Recruiter Screen |
| Cher Cherry |
7
|
Recruiter Screen |
| Sophia Date |
4
|
Not a fit |
| Emma Banana |
3
|
Not a fit |
| Liam Plum |
2
|
Not a fit |
Which organizations benefit most?
| Company Profile | Why JOIN+Greenhouse helps |
|---|---|
| High-volume hiring (100s of opens/year) | Automates posting and aggregates candidates across many boards to reduce manual admin and time-to-fill. |
| Hiring across multiple regions | Provides targeted local job boards that Greenhouse alone doesn’t distribute to, improving local candidate reach. |
| Small talent teams with limited sourcing capacity | Multiposting to free boards increases reach without adding sourcing headcount. |
| Enterprises with employer branding budgets | Access to premium boards at preferential rates and centralized tracking in Greenhouse improves ROI on paid spend. |
How the integration works in practice: you follow JOIN’s installation guide, supply your Greenhouse Harvest API key and a designated User ID, and grant the permissions JOIN requires. After authentication, JOIN polls Greenhouse and mirrors the status of jobs: publish, update, or archive. When candidates apply through JOIN, their application data and attached files are posted to Greenhouse as a new candidate associated with the mirrored job.
Setup checklist (before you begin)
- Harvest API key Generate a Greenhouse Harvest API key scoped to job and candidate endpoints and have it ready for JOIN.
- Designated integration user Create or identify a Greenhouse user to act as the integration owner; this user’s ID is required by JOIN.
- Job template consistency Standardize job fields and custom fields in Greenhouse to make sure JOIN maps job descriptions and locations correctly.
- Permissions review Confirm that the integration user has permission to view and post jobs and that API access aligns with your security policy.
- Billing and board selection Decide if you’ll use only free boards or enable premium boards and Flexible Spending through JOIN’s portal.
Candidate flow example: a candidate finds a role on a free board via JOIN and clicks apply. JOIN collects the candidate’s information and any uploadable documents. The application is forwarded instantly to Greenhouse and a candidate profile is created under the corresponding job. If the candidate later uploads a CV or additional documents on JOIN, JOIN sends updates to Greenhouse so the candidate profile there contains the latest files.
Common field mappings between JOIN and Greenhouse
| JOIN field | Greenhouse field |
|---|---|
| Job title | Job Title |
| Location (city, country) | Office/Location field |
| Job description/requirements | Job Post / Description |
| Candidate name, email, phone | Candidate basic info (name, email, phone) |
| Resume/CV and attachments | Candidate attachments in Greenhouse profile |
Monitoring and reporting: treat JOIN as an acquisition channel inside Greenhouse. Tag or source candidates coming from JOIN so you can track source performance, conversion rates, and time-to-hire by channel. Track top-of-funnel metrics (views and apply rate on boards), middle funnel (screen-to-interview rate), and bottom funnel (offer rate and time-to-hire) to assess whether paid board spend or distribution tweaks are improving outcomes.
Best practices for reliable synchronization
- Keep Greenhouse as the master Make all job edits in Greenhouse so JOIN can replicate consistent content across boards.
- Standardize job templates Use consistent location and department naming conventions to avoid duplicate or mismapped postings.
- Implement source tagging Use custom source fields or tags in Greenhouse to track which board produced the candidate for accurate channel attribution.
- Schedule periodic audits Regularly review active JOIN-posted jobs to ensure status parity and remove stale listings.
Security and compliance considerations: JOIN requires API access to read jobs and create candidates in Greenhouse, so limit the integration user permissions to just what’s necessary. Confirm data transfer destinations and retention policies in JOIN’s privacy policy, and ensure candidate consent and data handling meet your regional legal requirements (for example GDPR for EU-based candidates).
Common questions about the integration
Q: Does JOIN create duplicate jobs if I post the same job in Greenhouse and directly on JOIN?
A: No—when the integration is set up correctly, JOIN mirrors jobs from Greenhouse and removes the need to post separately on JOIN. Posting the same job manually on JOIN without disabling mirror settings may cause duplicates, so follow the setup guide to avoid double-posting.
Q: Will attachments uploaded after application be visible in Greenhouse?
A: Yes. JOIN forwards updated documents to Greenhouse, so additional candidate files uploaded after the initial submission are appended to the candidate profile.
Q: What if a job needs a custom field not supported by JOIN?
A: JOIN maps common fields and attachments; for custom fields you may need a manual process or to use Greenhouse custom fields and a mapping strategy. Review JOIN’s developer docs for advanced mapping options.
Q: Can I control which job boards JOIN posts to?
A: Yes. JOIN’s dashboard allows you to select free and premium boards for each job and to purchase premium placements when required.
Known limitations and potential gotchas: the integration replicates the fields JOIN supports—very specific custom field logic or workflow nuances in Greenhouse may not translate automatically. Some premium board placements may require additional metadata or different job templates. Also, because JOIN can publish to many external boards, keep an eye on versions of job descriptions to avoid inconsistencies or compliance issues in different regions.
Quantifiable benefits and ROI levers
- Time saved on postings Automating job posting and archiving removes repetitive manual tasks—teams often save several hours per requisition when multiposting.
- Increased candidate reach Access to 10+ free boards and 100+ premium boards increases visibility regionally and for niche roles, improving candidate volume and diversity of sources.
- Centralized workflow efficiency Having all applicants flow into Greenhouse reduces tool switching and allows immediate application of scorecards and interview workflows, shortening time-to-offer.
Implementation timeline and support: a standard setup—gathering an API key, designating a user, and enabling the integration—can be done in a day for most teams. Larger organizations that require mapping custom fields, procurement for premium boards, or partner implementation support may take 1–3 weeks. Use JOIN’s documentation, Greenhouse support pages, or a partner implementation if you require tailored mapping or enterprise-level governance.
Speed up resume screening with ZYTHR
Use ZYTHR’s AI resume screening alongside JOIN+Greenhouse to automatically score, shortlist, and prioritize incoming candidates—saving hours of review time and improving consistency and accuracy in early-stage selection. Start a free trial of ZYTHR to reduce manual screening and accelerate your time-to-hire.