Apply to roles and/or reach out to sales leaders - there are plenty of roles out there.
10-15 years experience you should be getting a package of around £280k - £350k and (assuming overachoiemvent) be earning £400k+ at a fairly safe, big software company.
Get into a startup with the right backing, a bit of luck and you'll be taking a lot more than that.
I thought I would add some experienced perspective to this...
I have worked in the tech sector since the late 80's in sales and sales leadership. I have worked for small, medium and global organisations and start ups and some of the most well known names in the industry. A top sales role today would be Strategic / Global AE running a large account with spend often into 10's to 100's of millions or more. These roles will typically come with significant basic 200K to 250K upwards, double OTE and overachievement will see people into 7 figure earnings. I speak as someone who has done that type of role.
No one will just walk into that role, you need to be very rounded and experienced to secure this type of role as you will be living in the board room of corporations and at the leadership level. You will be running a team of 20-50 people who support you. They may not report to you, but they will be your team, you move them like chess pieces around the board. This is selling at this level, hugely complex, global teams, lots of travel, lots of cadence, lots of out of hours work etc etc etc.
What I have found with tech sales is there is lots of talk of huge earnings and OTE's, overachievement and what X did last year, but most don't in a sustainable manner. No company could sustain a large sales team massively overachieving each year and it would surprise many that sales numbers will rarely be built on the whole team doing it's number, which the rarely do outside of 'right place, right time' situations, not least in the larger corporations. They are still often very well paid, but that comes with stress levels many will never get close to experiencing, not least when you are learning the trade. With age and experience comes ways to deal with that much better, but it is always there. Big bucks come with big pressure, it is not for most people.
Very very few roles pay 150K basic upwards across the industry no matter what you are being told. Glassdoor and LinkedIn salary metrics as well as industry metrics will prove this, I even posted on a few years back. Most sales roles at a good level in tech will pay 80K-100K base with maybe double OTE and not many people make that OTE let along overachieve. They may tell you they do, for they are still well paid by any measure, but most don't. Start ups with lots of cash with throw big money, but most fail so the 250K base means little if you reach the end of the funding runway in Q3.
Companies will not pay 400K to anyone who isn't a top talent and most people are not top talent. One year at 400K does not make a career and I can tell you doing that for 35 years is crazily taxing.