The schema.org has features integration and it would straight forward to integrate it in the recruiter_features module. Here is a starter patch against the recruiter_job feature.
thanks a lot! we are definitely looking foward to providing recruiter jobs in a semantic way.
your patch seems like a good starting point to me. most importantly we would like to keep extra dependencies out of recruiter_features core modules, therefore, i'd suggest doing this in a separate feature like recruiter_job_schemaorg or just recruiter_schemaorg where resumes might be mapped as well.
recently & related - i've experimented with the microdata module, too: #1495752: Using schema.org to publish jobs in a semantic way. but until #1415412: Make microdata mappings exportable we can't really rely on this.
we will have a deeper look into it but feel free to improve the patch if you have time available.
moving to the Recruiter project as of #1917506: Let's use the Recruiter project for the issue queue
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