Definitely possible. Though I'm not sure why those firms wouldn't switch to a more mainstream stack. Most talented quants I've met prefer to code in Matlab, R,

Definitely possible. Though I'm not sure why those firms wouldn't switch to a more mainstream stack. Most talented quants I've met prefer to code in Matlab, R, and Python, C++. VBA is of course inescapable in the life of a financier. When competing for talent and desperate for maintainability, companies are unlikely to introduce tools that are not the industry standard.