You're entire post is written about him and you: "it's not beneficial to my life". No mention of 'we' or 'us', except where you say that you don't really do joint finances. Barely any mention of the child(ren), family unit or even your relationship as a couple. Just where your refer to 'my DD" (why not our?)
You even say you value your current financial independence yourself, so it sounds like it's not just him that's keeping the finances separate. It all sounds very cold and clinical, more like you both consider each other as business partners rather than a loving family unit.
Why are you looking for jobs for him? Presume he's considering the canary wharf one over wfh because of the extra money. Which sounds like he's willing to sacrifice his family life to work away during the week in order to bring in extra money. Or is there some other reason he wants to be working there? Or is your relationship so broken that he prefers the idea of being away most of the time preferential?
Most 'breadwinners' (whether male or female) who go chasing numbers consider a higher salary as making them a better provider for the family, rather than for their own personal benefit. But that may not be the case here, given what you've said about separate finances. Other people see the bigger picture more easily, and value the home life over the extra income.
What is he doing with his surplus income, once he's paid his 'share' of the household expenses? Most married couples work as a team and pool all their resources (whilst still being able to buy stuff for themselves our of that pool).
This kind of family altering decision is one that really needs to be taken as a family (even include your dd if she is old enough to understand). There are far wider implications that affect all of you.
Ultimately though, you can't actually 'charge' your husband because you're a joint legal entity - what's his is yours and what's yours is his, even if you do run separate bank accounts.
That's not an option for me I value my financial independence too much. I've seen far too many women being screwed over. I guess a nanny will be only the option DH will have to foot the bill. He might change his mind to WFH if he's having to pay out.
Umm, why on earth did you get married if you value your independence too much? As above, you both own everything jointly. People on MN keep advising women to get married before having kids to protect themselves, and yet you're saying the opposite.