Answer: Future progressive.
Step-by-step explanation:
Future progressive (also known as future continuous) is a verb form used to describe an action that will take place in the future and last for a certain period of time.
Three tenses that verb forms can have are past, present or future. In this example, verb form "will be working" is in future tense.
Aspect is a grammatical category we use to describe whether a particular action is continuous, repeated or takes place only once. In addition, verb forms can have simple, continuous (progressive) or perfect aspect. The aspect in "will be working" is progressive.