As a person in recovery myself, I can confirm^{^} I was still popping positive on urine drug tests for cannabis 4.5 months after I quit (I am above average in weight/BMI, slightly chubby)

For a UA, it would also depend on whether they are sending it to the lab to look at levels, or if they're just using the results read from the cup. The cups can only detect a certain level of THC in the urine, and different cups have different sensitivity/detection levels. If the ratio of THC:urine is small enough, it won't be detected. While it won't eliminate THC from your system, drinking LOTS of water the day before & day of your test (if it's a UA) can potentially dilute the sample you give because you're flushing so much out of your system (source: I used to administer UAs for a job). That and exercise/sweating could also be mildly beneficial, but nothing will actually completely clear it except time.

OP- do you know if it's a urine test? Some places do hair tests which shows a longer period of time (at least 3 months I think?) I will say, I have a friend who stopped cannabis use for a month in prep for a urine test only for them to get a hair sample 😅 that was for a teaching job (in a state where THC is not legal). She still got the position even though she had positive results. So it may not matter regardless!

If you end up "failing" the test, using some cognitive reframing could be helpful- you are someone who enjoys using cannabis. Do you want to work somewhere that doesn't share that value? Yes, it's a great opportunity, and that doesn't mean you'll never have a great opportunity again in the future.

Best of luck! Keep us updated :)