IELTS

Pay increments /peɪ ˈɪŋkrɪm(ə)nt/ (a noun phrase)
a salary raise
example: At the end of each year, employees will recieve a pay increment.

Perk  /pəːk/ (n.)
 job benefits which are not financial such as free food at work. 
example: Big companies are competing with each other in perks which they can provide.

Job satisfaction /dʒɒb satɪsˈfakʃ(ə)n/ ( a noun phrase)
a feeling of enjoyment because of job we are doing.
example: It is not realistic to expect job satisfaction for everybody at work.

work/life balance (noun phrase) 
a balance between work and personal life
example: Unfortunately, most people have lost their work/life balance.