Greenhouse Recruiting has integrations that can create free job posts automatically on and/or Indeed after setting your external job posts live. These can be configured at the bottom of each job post's edit page or when bulk editing external job posts.
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Enable Free Job Post on Single Job
To enable a free job post on Indeed, click All Jobs from your navigation bar and select a job from the subsequent list.
From the Job Dashboard, click Job Setup and navigate to Job Posts on the left-hand panel.
Click the Edit icon 
beside the Job Post you would like to submit to Indeed.
From the Edit Job Post page, navigate to the Publish to Free Job Boards section and select the Indeed checkbox.
You will be prompted to provide a city that will be used to index the job. To mark the job post as a remote opportunity, select Remote after choosing a location.
When finished, click Save. Once the job post is online, the job's information will be sent to Indeed for processing.
Refresh a Free Job Post on Indeed
Sites such as Indeed can be a great resource for new candidates when your job posts are first posted online, but over time your ads become stale and are far less visible than newer posts.
Because Indeed offers sponsored posts for better positioning on their site, it is not possible to repost a job ad in Greenhouse Recruiting to generate a new ad on Indeed. Taking the post down and then reactivating it, or closing and reopening the job will simply re-post the stale job instead of creating a new one. These sites also have filters that check for similar job titles and descriptions to hide duplicates, so creating a new job in order to generate a new ad is likely to fail as well.
Remote job posts on Indeed
Click here for more information on configuring remote job posts in Indeed.