I'm really happy with what I do.
我对我的工作感到很满意。
It's very rewarding to be able to help people every day.
每天都能帮助别人令我很有满足感。
rewarding 值得的、有意义的、令人满意的
Besides, the pay is good and they even hand out bonuses twice a year!
此外，工资也不错，公司甚至每年发两次奖金！
besides 另外、此外
pay 工资、薪水
they在这里表示“公司（管理层人员）”
hand sth out 分发、散发...
bonus 奖金、津贴
摘自微信公众号“杨帅英语口语”2022.05.25
