Johan B.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

Personal Summary With over three decades dedicated to the world of quantitative finance, I am an adept professional with a demonstrable track record within major high street banks, fund managers and investors. My expertise lies in mathematically producing high-caliber financial models spanning across diverse domains such as FX, credit, interest rates (IR), commodities, and equities. I hold a Ph.D. in Applied Mathematics and wrote 35 odd papers. Beyond my roles in banking, I have been honored to have held the position of a professor, teaching mathematics and engineering. Amongst the above, I have gained extensive experience in managing and leading teams on various projects within the industry. I was positioned in the USA for some time, taught in the Netherlands and Istanbul and some 25 years ago ended up residing in England.