Financial News will this week look at some of the roles that have taken on the most importance in each corner of the financial services industry, charting the rise of each sector’s top jobs and exploring the challenges facing those occupying them.

Next up is investment banking. In the 1980s, bond traders from the likes of Salomon Brothers were stars, followed by M&A rainmakers as the tech bubble inflated, and later structured finance bankers who mastered the task of shifting risk off banks' balance sheets.