I think a lot of it was right place at right time luck.
After nearly 2 decades out the classroom as a SAHM, I got a DDSL support staff role. Atrocious pay for the responsibility. Found I was really good at it.
Applied for an SLT Senior DSL (non teaching role) by writing about my experience and not disclosing current salery - jumped from 22.5K to 44.5K. I've clearly found my niche because Im really good at what I do, turned the school safeguarding around fairly rapidly.
Then while SDSL, the Assistant Head (Attendance) left. I told Head I could lead attendance too, but I wanted to go onto the teaching leadership scale (was on support staff scale as SDSL) and the AHT title.
Head said yes. I was honestly expecting an offer of L1 (49k, I think- so still a pay rise) and planned to negotiate up to L4 or 5. But was immediately offered L11 (£63.8k). I've not got a teaching timetable (although have QTS) because I'm quite operational in both safeguarding and attendance.
So, I've gone from 22.5k to 63.8K in 9 months. It still blows my mind. I'm very grateful and I love my job.