John Van Der Bleek is a Head of Program Management at Erisx. He possess expertise in derivatives, trading systems, electronic trading, equities, fixed income and 12 more skills. Colleagues describe him as "Since meeting John Van Der Bleek in 2008, during his time at Deutsche Bank, I’ve realized two things: the listed derivatives industry is incredibly complex, and John is the unofficial encyclopedia for it. His journey through exchanges, clearinghouses, and clearing brokers hasn’t just been a career; it’s been a mission to accumulate every possible insight into the industry—and, of course, the technology behind it. If the derivatives world had a ‘Google,’ it would be John. Asking John for advice on industry topics is like having a backstage pass. He makes the complex simple, the obscure clear, and the impossible possible. And let’s not forget his Rolodex. If you need to know someone in the industry, chances are John’s not only got their number but probably had coffee with them last week. What truly sets John apart is his willingness to share his time and knowledge. He never pushes back, even when I suspect he’s secretly wishing for a quiet day away from Buchanan. His generosity with his expertise is matched only by his patience in explaining things for the fifth time. John is more than a colleague; he’s the wise, occasionally witty friend everyone needs in their corner."