I tried Simple Hired for job hunting years ago but back then they didn't handle searches for "C++" (WTF?). I tried it again today and they still don't. Here are the first 6 results I got just now searching for "C++" (50% error rate):

Simply Hired: Pediatric General Physician, Full Stack Software Engineer, QA Testing Analyst, Surgical Technician, Entry Level Developer, Specialist Software Design Eng, Director of Medical Staff Services

Compare this to Indeed's results for the same search (0% errors): Software Developer/C++ and SQL, Sr Computer Developer - C++/Java/UNIX, C++ Developer, Software Development Engineer 2, Software Engineer, Software Engineering Specialist