Proof Trading appoints Nila Das as COO

Proof Tradean institutional equity execution platform dedicated to transparency and fairness, announces the hiring of Nila Das as Chief Operating Officer. She joined the firm this month.

The arrival of Ms. Das, who was most recently with Citigroup, follows July 2022 the meeting of Marcio Moreno after 11 years at Goldman Sachs. Mr. Moreno joined Proof as vice president of engineering and was later promoted to chief technology officer this month.

Co-founders of Proof, CEO Daniel Aiserand president Allison Bishopsaid: “We are delighted to add Nila and Marcio to the team as they bring unique skills and abilities to assist Proof in its continued quest to deliver an unparalleled trading experience for institutional investors.”

Ms. Das has worked the past 13 years as a bond trader, including her nine-year tenure at Citigroup, where she managed various portfolios of mortgage-backed securities. Previously, she traded at RBC Capital Markets for four years. At both companies, she played a key role in the creation of key products for institutional investors and the structuring of new product lines.

“In addition to her extensive experience in trading and product development, Nila is well versed in the ‘electronization’ of bond markets and understands what traders are looking for in a broker,” said Mr. Aisen and Ms. Bishop. “This experience will be essential as we expand Proof’s algo offerings.”

Mr. Moreno spent his last 11 years at Goldman in São Paulo and New York, most recently as co-head of LatAm Engineering. In this role, he was responsible for system development for a team of over 40 people in Brazil and Mexico City, including Equities Electronic Trading Strats, SRE, Equities Technology, FICC Technology and Operations Technology. Previously, Mr. Moreno was a software engineer at Credit Suisse in Brazil during two years.

“Marcio has been an excellent candidate since joining Proof and his productivity and leadership made the decision to appoint him CTO easy,” said Mr. Aisen and Ms. Bishop. “His deep understanding of building and developing complex trading systems – combined with his experience leading a high performing team – is already paying off and will be even more important as we continue to grow.”

Ms. Das holds a bachelor’s degree in finance and international management from Boston University and was named to the Forbes 30 under 30 in Finance in 2016, matching similar honors received by Ms. Bishop (2014, Science) and Mr. Aisen (2015, Finance). She is active in women’s initiatives in finance and most recently served as president of women in commerce at Citigroup. She is based at New York.

Mr. Moreno is a graduate of two of the South America leading institutions – a master’s degree in economics from INSPER and a bachelor’s degree in computer engineering from UNICAMP. He also won a gold medal at the Brazilian Computing Olympiad in 2015. He is based in São Paulo.


Evidence, New York, NY, is an institutional stock execution platform, which aims to bridge the gap between market principles and the real trading experience of long-term investors. Founded in December 2018, we believe in transparency and fairness, leveraging our technology to improve market quality. For more information, visit our website and follow us on Twitter and LinkedIn.

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