South Bay WASP - Web Application Security Project. Gain career changing experience with hands-on web application exploitation and network penetration testing training.
South Bay WASP is a laboratory meetup similar to lab portions of technical classes at a community college or technical school. A laptop computer is required. See the meetup description for required software which may have some additions depending upon the week's topic.
For people who are new, the CompTIA Security+, N+ and Pentest+ certifications are a recommended starting point. Computer Information Systems and Computer Science courses from a community college are useful.
The next level of certification for penetration testers is the ECCouncil Certified Ethical Hacker. For a more administrative certification look up CISSP from (ISC)².
For advanced certification look up OSCP from Offensive Security.
There are numerous other certification programs available.