About Us

Constella provides investment solutions & trading services to professional investors in Digital Asset markets.

At Constella we manage a set of Trading services and Investment solutions in Digital Asset markets. Our focus is to deliver to Professionals Flexible Solutions via our range of Investment and Hedging products and Expertise with Cryptocurrency Advisory services.

Disciplined risk management underpins everything we do. We structure and execute strategies designed to enhance the risk and reward profile of your portfolios. We have a proven track record in delivering steady superior alpha returns in all market conditions.

Powered by our proprietary technology, we have built in-house infrastructures developed to handle systematic quantitative strategies and risk monitoring 24/7.

We have crafted a set of innovative products to meet your investment needs in Digital Assets such as a non-directional fund, treasury & structured products.

Our Expertise coupled with our trading capabilities, proprietary algorithms, and access to markets allow us to provide a tailor approach to your needs if you are a Financial institution, Family office, Hedge Fund, Cryptocurrency & Corporate Treasury, Institutional trader, Market maker, Cryptocurrency exchange or miner.

Meet our Team with cross market knowledge & expertise in Finance & Technology
Christophe Sfeir
Founder CEO

Christophe is the Founder CEO of Constella. He oversees portfolio management, daily operations, R&D, execution & risk frameworks.

Since 2017, Christophe thoughtfully designed non-directional investment strategies that seek to deliver sustainable long-term value in Digital Asset markets. Christophe has 16 years’ experience in traditional finance and Crypto. He leverages 6-year trading experience in Digital Asset markets and 10-year Fixed Income experience at French Investment Banks working in London and NYC.

He is a guest lecturer on “Digital Assets and Arbitrage Trading” at Solvay Brussels School of Economics; and Toulouse Business School where he graduated his MSc in Quantitative Finance.

Raphaël Sfeir
Co-Founder & CTO

Raphaël is the co-Founder CTO of Constella Capital. He is in charge of all our technology.

Passionate about coding since his teenage years, he worked over 10 years as a Lead Developer. He holds a MSc in Engineering from Centrales Nantes and has worked in the Video Games industry with a strong focus on data science. In his free time, he participated in numerous Hackathons and Game Jams.

Since 2017, he has built our proprietary technology, algorithms, and in-house infrastructures developed to handle systematic quantitative strategies. He uses his strong technical background to good use in leading our team of developers. In his spare time, Raphaël loves being able to translate his ideas into code and nurture his creativity by building video games.

Christophe Le Lanou
Data Science

Christophe leverages his expertise and experience in volatility trading, systematic research, portfolio construction. Since 2021, he is actively involved at Constella in alpha R&D, execution & data science functions.

Christophe spent 17 years working in the financial industry, including 5 years as head of quantitative research and trading at Carrousel Capital, a London-based hedge fund with over $600mln AUM; and 9 years in vol-arb & derivatives trading desks.

Founder of DataLearning, a consulting firm promoting use of data and AI to deliver value and efficiency in complex environments. Co-author of a reading for the CFA Program curriculum on Machine Learning for level II candidates.

François Monteleon
Head of Engineering

François is the Head of Engineering at Constella, where he leads the development of robust trading infrastructures and fosters a culture of innovation and technical excellence. With nearly 20 years of experience in the Asian markets, François specializes in building automated trading solutions for both traditional finance and digital assets, utilizing advanced technologies such as AI and event-driven architectures.

His career includes senior roles at Barclays and HSBC, where he developed a deep understanding of trading technologies and financial systems. In the digital asset space, François spearheaded market-making operations for ZIPMEX, a leading digital asset exchange in Southeast Asia, showcasing his ability to bridge traditional finance with cutting-edge digital solutions.

An alumnus of Brest National Engineering School (ENIB), François combines technical expertise with strategic insight. Outside of work, he enjoys spending time with his two children while remaining deeply committed to Constella’s growth and innovation.

Nicolas Dickreuter
Market Making

Nicolas advises Constella Capital on market-making strategies, leveraging decades of expertise in Artificial Intelligence, Machine Learning, and quantitative solutions. His innovative approach integrates cutting-edge technologies into the financial and AI sectors, driving transformative strategies.

During his distinguished career at Goldman Sachs, Nicolas honed his skills in AI-driven solutions and gained extensive experience at global institutions such as Barclays Capital and BNP Paribas. His strategic insights and technological acumen are instrumental in advancing Constella’s market-making initiatives.

A graduate of the University of St. Gallen in Switzerland, Nicolas combines academic rigor with a hands-on approach, delivering impactful solutions that align with Constella’s mission for innovation and performance.

Thomas Sadurni
Quantitative Analyst & Trader

Thomas joined Constella Capital in April 2022 as a Quant analyst and contributes actively in quantitative topics related to data, execution, investment strategy construction, risk management and systematic systems.

Thomas has a dual qualification in applied mathematics - computer science at ENSEEIHT and a MSc in Quantitative Finance at Toulouse Business School which allows him to be proficient in both technology development and quant trading by being actively involved in investment strategy R&D, risk frameworks and trading.

Prior to Constella, Thomas worked as an analyst in a crypto start-up where he developed a trend-predictive algorithm on bitcoin, and has been involved in Defi and algo-trading related projects.

Paul-Louis Cabal
Quantitative Analyst

Paul-Louis is a Quantitative Analyst at Constella with a strong foundation in financial mathematics, blockchain, and artificial intelligence. A graduate of ESILV, he brings a unique blend of technical expertise and innovative thinking to the team.

At HKML Research, Paul-Louis developed cryptocurrency investment signals and collaborated on generating financial metrics using advanced models such as Large Language Models (LLMs) and Diffusion Models. His previous role as Financial Engineer Department Lead at Kryptosphere—Europe’s largest student blockchain organization—further enriched his expertise in bridging traditional finance and digital asset ecosystems.

Passionate about knowledge sharing, Paul-Louis enjoys exploring philosophical concepts and thrives in team sports like handball, embodying both intellectual curiosity and teamwork.

Jules Foa
Analyst

Jules is an Analyst at Constella, bringing a combination of entrepreneurial drive and crypto-native expertise to support the firm’s business and operational strategies. With a track record of catalyzing innovation, Jules founded Kryptosphere Accelerator, helping over 30 startups scale successfully by leveraging his extensive global network across universities.

His early professional experiences include conducting digital asset research at TOBAM, where he deepened his knowledge of investment frameworks in the crypto space. Jules is a graduate of emlyon Business School with a Master’s in Management and a solid engineering background.

A natural communicator, Jules has delivered public speeches on digital assets and entrepreneurship since the age of 19. Outside work, he is passionate about fostering innovation and building meaningful industry connections.