Best way to hire installation/XF audit help?

(I am sorry if this is not the best forum),

My developer updated XF 1.5.6 at and it's working great. Except he could not get Elasticsearch enabled; as he is not familiar with Xenforo/elastic search

I am looking to hire somebody to review our installation, see if they can identify any improvements, and enable the Elasticsearch (if that's advisable; for example, would be better?). Basically, an "audit" by somebody proficient .... Thanks for any help!