ApplicantStack allows you to post jobs to Indeed. When you launch your job through ApplicantStack you are posting your job organically (non-paid) and over time the job will lose it's position on the search list which may result in fewer candidates. However, the only way to ensure your top spot is to sponsor (pay) for your job. You can do this by launching your job through ApplicantStack and select the option to sponsor your jobs. See https://help.applicantstack.com/hc/en-us/articles/360020981454-Indeed-Sponsored-Jobs-integration for more information on how to sponsor your job.
According to Indeed:
"Every day, candidates come to Indeed to find the job that fits them best. They begin by entering the type of job they’re looking for and where they’d like to work.
The search results they see are a combination of organic job listings (jobs that are aggregated by our search engine) and sponsored jobs (jobs that are promoted by employers). These search results are matched to the search terms candidates entered and are sorted by relevance and the date the job was posted.
New jobs are added to Indeed every day — 8.2 jobs per second. As these new jobs appear, organic listings fall in the search results. Sponsoring jobs on Indeed is one way to make your opportunities stand out. Jobs that are sponsored by employers remain high in the search results. They appear prominently at the top and the bottom of the page, even as time passes.
Sponsored Jobs are based on a pay for performance model. Employers set a monthly budget and only pay when a candidate clicks to view your job. You decide how much to spend and we deliver relevant, high-quality candidate traffic. In this way, you can craft recruitment campaigns, track your return on investment and reach the widest audience of qualified job seekers. While setting up your Indeed campaign, our team is available to answer any questions and help you make adjustments so you can reach your target audience."