University of Oxford Master’s in Software Engineering
https://mba.london.ac.uk/overview/programme-structure/
University of London (Queen Mary’s) MBA
https://london.ac.uk/courses/finance-major-banking#entry-req...
SOAS University of London Master’s in Finance
All of these Master’s will admit students with enough relevant work experience without a Bachelor’s degree. If your work experience is tangential to what you want to study they might tell you to go do a MOOC and apply again with proof you did well in it.
Unless I misread the below they prefer a Math, CS or Engineering Bachelor’s and a Bachelor’s of some kind is an absolute requirement.
> Preferred qualifications for admitted OMS CS students are an undergraduate degree in computer science or related field (typically mathematics, computer engineering or electrical engineering) from an accredited institution with a cumulative GPA of 3.0 or higher. Applicants who do not meet these criteria will be evaluated on a case-by-case basis; significant professional or other work experience with supporting recommendations may qualify as an adequate substitute for the appropriate academic credentials, however work experience will not take the place of an undergraduate degree
A working person might be able to space out classes so that they can continue their full-time job, but I'm not sure.