Senior Quantitative Trader

About Marex

Marex Group plc (NASDAQ: MRX) is a diversified global financial services platform providing essential liquidity, market access and infrastructure services to clients across energy, commodities and financial markets. The group provides comprehensive breadth and depth of coverage across four core services: clearing, agency and execution, market making, and hedging and investment solutions. It has a leading franchise in many major metals, energy and agricultural products, with access to 60 exchanges. The group provides access to the world's major commodity markets, covering a broad range of clients that include some of the largest commodity producers, consumers and traders, banks, hedge funds and asset managers. With more than 40 offices worldwide, the group has over 3,000 employees across Europe, Asia and the Americas.

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Department description

Marex's Algo and Flow department, formerly WEBB Traders, brings together expertise in proprietary trading, electronic market making, and quantitative research. The department provides liquidity across global cash equity and derivatives markets, using proprietary capital, advanced technology, and automated trading strategies.

This role sits within the WEBB team, whose roots date back to 2009. Based in Amsterdam, with a significant presence in Paris, the team combines its entrepreneurial approach and specialist trading expertise with Marex's global reach, market access, and broader financial services capabilities.

Market makers, quantitative researchers, software engineers, and business professionals work closely together to develop trading strategies, improve technology, and solve complex market challenges. Joining the team offers the opportunity to take ownership, contribute directly to the business, and grow within the wider Marex Group.

Role Summary

As a Senior Quantitative Trader, you will play a key role in the research, development, execution and ongoing enhancement of systematic, data-driven trading strategies across financial markets. You will be responsible for creating new alpha-generating strategies, refining existing models, and identifying opportunities through quantitative analysis, market insights and data-driven decision-making.

Working closely with Trading, Technology and Risk teams, you will help drive the evolution of a scalable, automated trading environment while maintaining a strong focus on performance, risk management and operational excellence. You will develop a deep understanding of strategy behaviour, proactively monitor performance, identify anomalies and changing market dynamics, and implement enhancements to optimise outcomes.

As Marex continues to invest in reducing trading latency, strengthening exchange connectivity and expanding ownership of its technology stack, you will work alongside traders, quants and a specialist team of low-level software and data engineers to rapidly transform research and trading ideas into production.

Backed by Marex's significant capital resources and institutional infrastructure, the role offers a unique opportunity to develop and scale successful strategies without the capital constraints often associated with smaller trading firms, enabling you to focus on delivering sustainable alpha and long-term growth.

Responsibilities

Role specific:

• Research, develop and implement systematic, data-driven trading strategies across financial markets.
• Generate new trading ideas and translate market observations, data patterns and quantitative insights into scalable trading models.
• Monitor and optimise strategy performance, identifying anomalies and implementing enhancements where required.
• Partner closely with Trading, Technology and Risk teams to deliver robust and efficient trading solutions.
• Contribute to the continued development of an automated, scalable and data-driven trading environment.
• Support all aspects of trading desk activity, including position reconciliation, risk management processes and post-trade analysis.
• Analyse trading performance and communicate key findings, insights and recommendations to senior stakeholders.
• Challenge assumptions and existing approaches constructively to drive innovation, improve decision-making and enhance trading outcomes.

All staff:

• Ensuring compliance with the company's regulatory requirements under the FCA, NFA, AMF, AFM, MAS.
• Adhere to the operational risk framework for your role ensuring that all regulatory or company determined parameters are complied with.
• Role model for demonstrating highest level standards of integrity and conduct and reflecting Company Values.
• At all times complying with the FCA's Code of Conduct
• To ensure that you are fully aware of and adhere to internal policies that relate to you, your role or any other activities for which you have any level of responsibility
• To report any breaches of policy to Compliance and/ or your supervisor as required
• To escalate risk events immediately
• To provide input to risk management processes, as required.

Skills and Experience:

• Strong academic background in Mathematics, Statistics, Econometrics, Finance, Computer Science or a related quantitative discipline.
• Proven experience in quantitative trading, with a track record of developing profitable systematic trading strategies and delivering strong risk-adjusted returns.
• Demonstrated ability to research, design, backtest and deploy new quantitative trading strategies.
• Strong programming skills, preferably in Python and/or C++, with experience developing and maintaining production-grade trading models and analytics.
• Deep understanding of financial markets, quantitative modelling techniques and systematic trading methodologies.
• Experience working with large datasets and applying statistical and analytical techniques to identify trading opportunities.

Competencies:

• Strong analytical and problem-solving skills, with the ability to assess complex information and make sound decisions under pressure.
• Creative and innovative thinker, able to identify new opportunities and transform ideas into practical trading solutions.
• Commercially minded, with a strong focus on performance and continuous improvement.
• Effective communicator, capable of presenting complex quantitative concepts to both technical and non-technical audiences.
• Collaborative team player with the ability to build effective relationships across functions.
• Self-motivated, resilient and adaptable, with the ability to operate in a fast-paced trading environment.
• Strong leadership and ownership mindset, capable of driving initiatives from concept through to implementation.
• Fluent in English, with excellent written and verbal communication skills.

Conduct Rules, You must:

• Act with integrity
• Act with due skill, care and diligence
• Be open and cooperative with the FCA, the PRA and other regulators
• Pay due regard to the interests of customers and treat them fairly
• Observe proper standard of market conduct
• Act to deliver good outcomes for retail customers

Company Values

• Be collaborative - by working together across the organisation, we foster teamwork, can better respond to challenges and successfully deliver for our clients
• Act with integrity - we pride ourselves on our honesty and high ethical standards. We apply these values when working with all our clients, colleagues and other stakeholders
• Be adaptable and entrepreneurial - we embrace change as markets evolve to constantly increase our efficiency and create innovative solutions for our clients. We are interested in the world around us and inquisitive about understanding the challenges and opportunities our clients face.
• Be respectful – how we treat each other, and our clients says everything about who we are. We always act respectfully and treat people fairly in everything we do.
• Nurture talent – we aim to grow our own talent and make Marex the place ambitious, hardworking and talented people choose to build their career. This means giving and taking stretch opportunities, taking risks, and committing to career development and support – for ourselves, and our teams.

Marex is fully committed to being an inclusive employer and providing an inclusive and accessible recruitment process for all. We will provide reasonable adjustments to remove any disadvantage to you being considered for this role. We value the differences that a diverse workforce brings to the company. We welcome applications from candidates returning to the workforce. Also, Marex is committed to avoiding circumstances in which the appearance or possibility of conflicts of interest may exist within the hiring process.

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