Oliver has been working in blockchain and crypto for 5 years, in Europe and the US. He notably developed trading signals for SF Hedge Funds during the crypto bubble of 2018.

A great lover of electronic music, he also plays drums and saxophone.

Oliver met Simon and Arnaud while studying, and they started SheeldMarket together in UC Berkeley before being joined by Jacques.

François-Xavier has always been captivated by financial markets. From 2006 to 2017, he worked successively at Lehman Brothers, Barclays and Deutsche Bank, covering institutional clients in Equity Derivatives Sales.

In 2018 he launched his business around vintage watches, a family passion that is still alive today. It was in 2020 that he returned to his origins, joining SheeldMarket and the world of cryptocurrencies to lead the sales team and propel this asset class to global institutional clients.

Jacques has 25 years of investment banking experience in half a dozen countries on three continents. After his last adventure, he returned to France where he met Arnaud, Oliver and Simon who had the project to facilitate professional access to cryptocurrency.

He enthusiastically joined them to found SheeldMarket, where he leads quantitative research and trading.

Valentine graduated with a Masters in Corporate Finance from IESEG in 2020. She’s a fan of electronic music and knows all the great Parisian spots and European festivals.

After several experiences in audit and management control, she finally decided to start her career in the Customer Success department of Payfit.

Intrigued and seduced by the challenging cryptocurrency industry, she joined SheeldMarket in February 2021 as an Account Manager.

Passionate about Programming, Optimization and Finance, it’s at the crossroads of these three worlds that Adam has developed his skills. After a few years of studying aeronautics within ISAE-SUPAERO, he left to complete the mastery of his favorite subjects at the University of Berkeley. Finance and optimization courses, many Programming projects and brilliant comrades: this was the perfect combo to gain valuable experience.

However, it was the C ++ Software Engineer opportunity extended by SheeldMarket at the end of his studies that allowed him to professionalize and satisfy his thirst to optimize ever more complex systems. Since trading is a constant race for speed, speed, stability and efficiency are the key words when programming the various elements of such a platform. These are the three words that drive Adam to surpass himself every day in the tech team at SheeldMarket.

More personally, Adam also thrives on races, but endurance this time around, through the many beautiful landscapes offered by mountains, forests, lakes, rivers and seashores around the world.

Learn more about Aplo


Aplo is an EU-licensed broker, leading institutional investors into the crypto universe. Their advanced financial products are complemented by a zero-hassle setup, so you get the most productive trading experience possible.

Aplo offers:

  • Opportunity: The broadest range of pairs and the deepest markets.
  • Simplicity: All plumbing handled and just a single account to deposit in.
  • Evolution: From spot trading to leverage and cross-margin. Even yield.
  • Confidence: A crypto-broker that is EU-licensed and never trades against you.

Their mission is clear. To embrace the difficult on their customers’ behalf, and build solutions that enable the next generation of finance.

They are growing fast, and they want you to join them.

What they are looking for

At Aplo they are looking for people who have a strong inbuilt sense of ownership. People who can not only learn something new, but quickly put it into practice. And people who balance their drive for high-performance with being supportive of those around them.

Good to know

In turn, they can offer the opportunity to join a like-minded team working on an exciting, high-growth product. They are a team that values training and knowledge sharing. So each week, someone leads a training session for the whole company.

Additionally, they offer: A salary supplement of €2,500 per dependent child (up to 3 children). A transparent salary structure for all employees, based on the upper range of salaries in the market. *Full reimbursement of your health insurance and transport costs.

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