Your resume should be thought of as a marketing tool, not an autobiography. When deciding what to put on your resume, you should ask yourself "why would this make them want to hire me?"
You should be prepared to talk about and explain everything on your resume.
Instead of just stating levels of proficiency with software or programming languages, try to give examples of projects, explaining how that software/programming language was used.
The main difference between the two American actuarial societies is their educational/credentialing paths. The CAS has one fellowship track for property and casualty, while the SOA has fellowship tracks for enterprise risk management, finance and investments, life insurance and annuities, retirement benefits, health insurance, and general insurance (aka property & casualty). An actuary's job and employer determine which society they'll get their credentials with. While both societies educate property & casualty actuaries, currently most property & casualty Read more about What's the difference between the Casualty Actuarial Society (CAS) and Society of Actuaries (SOA)?