Converting a sentence from passive voice to active voice [closed]

I wish to convert a sentence written in the passive voice to that of the active voice. The sentence is in a covering letter for a job. Here it is:

"I am experienced in reviewing, drafting, and amending a broad range of contracts, these include supply of service contracts and supply of goods contracts."

I would be grateful if someone could show me what the above looks like in the active voice.

Kind regards.

Note that in "I am experienced in reviewing", experienced is a participle used as an adjective. These are called participial adjectives. You cannot *be experienced by someone. So no passive here. If the participle bothers you that much, you could say:

I have experience in ...

It seems to be more common.

Experienced is recorded in dictionaries as an adjective with a very active meaning:

having skill or knowledge because you have done something many times:

• an experienced teacher
• She is very experienced in marketing. (Cambridge)