A process server is a trained professional who serves legal documents to defendants who are named in a court proceeding.

Must also provide proper documentation that complies with local laws and keep proper records of their service of process that would be admissible in court should the need ever arise.
Process servers are trained to find individuals and ensure that they are given notice of a legal action that is being taken against them. Proper service of process is required before a legal proceeding can get underway. Whether the person who is served decides to avail themselves of legal counsel or not following service of process is of no concern. Merely being put on notice is enough. A defendant ignores the serving of legal documents at their own peril.