How is your career journey explosive? Is that something that's just been happening recently, or has your career always gone explosively?
You had your Uranus and Saturn oppositions over the last couple of years, and last year's Jupiter/Saturn/Pluto conjunction squared your natal Jupiter, ruler of your MC, with Pluto still in orb of the square, while Saturn and Jupiter have now moved on. Uranus and Saturn oppositions are midlife crisis triggers - everyone gets them in their early to mid forties - and Uranus in particular tends to make things blow up. Pluto transits are explosive in another way: Pluto is the big bad wolf, blowing down (or seriously trying to blow down) everything he touches.
The squares to your Jupiter are the most likely of those transits to have directly affected your career sector, Jupiter being your career ruler. But any significant transit, like those midlife oppositions, has a strong effect on you that can extend to all areas of your life.
Over the last five or six months, transiting Jupiter has been squaring your MC, too. The final direct pass of that square will happen in early 2022, when Jupiter moves back into Pisces (it moved into Pisces in mid 2021 and has now retrograded back into Aquarius). If you need a new career, career expansion, or to get out of a career situation that's no longer serving you, Jupiter hitting your MC tends to deliver it, like it or not. The effect would be especially pronounced when you have a Jupiter ruled MC.