Front-end: A few static sites (i.e. landing page) + Angular.
Back-End: A few C# APIs with Redis for caching.
Database: MongoDB + SQL Server.
Deployment: Docker Containers on Azure via DevOps Pipelines (one-click deployment).
Depends who you ask, it's considered quite low in Finance (Goldman Sachs is paying +£100k total. comp for front-office graduates now), but generally, outside of finance & fintech the salaries are quite low.