Data Scientist (Operations)

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.

For more information visit https://www.marex.com/

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

Our Operations team ensures the accurate, timely, and controlled execution of the full trade lifecycle across all products. Through scalable processes, robust controls, and an automation-first approach, we support business growth while minimizing operational risk. We provide real-time oversight of trading activity and systems, continuously improving workflows to increase efficiency, transparency, data quality, and resilience.

As part of our Operations team, you will design and build automated tooling, workflows, and dashboards that power our trading operations. You'll combine technical problem-solving with operational ownership, creating scalable solutions while staying close to day-to-day processes to ensure they run seamlessly.

Operations is a key enabler of our business growth. As we expand into new products, markets, and initiatives, the team ensures our processes remain efficient, controlled, and resilient. We manage operational risk while continuously driving improvements through automation and process optimization.

Working alongside traders, risk management, data scientists, software engineers, and Legal & Compliance, you will help shape and improve the operational infrastructure that supports the business. Our automation-first approach focuses on eliminating manual effort, increasing reliability, and building scalable workflows, while retaining the operational expertise needed to oversee and intervene when necessary.

Responsibilities

Role Specific:

- Partner with Trading, Technology, Risk, and Compliance teams to resolve issues and enhance operational workflows.
- Design, build, and maintain tools, dashboards, and automated controls that support operational processes and decision-making.
- Identify opportunities to automate and improve processes, driving implementation in collaboration with engineering teams.
- Take end-to-end ownership of operational processes, ensuring they are scalable, well-controlled, and perform reliably in day-to-day operations.
- Manage end-to-end trade lifecycle processes across cash equities, listed and OTC derivatives, and structured products.

- Perform daily reconciliations of trades, positions, and cash, investigating and resolving exceptions in a timely manner.

- Monitor trading activity and operational systems during market hours, ensuring stability and prompt issue resolution.

- Support transaction reporting processes, ensuring data completeness, accuracy, and timeliness.

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.

Competencies

- Systems thinker who focuses on process optimization rather than isolated tasks.
- Combines an automation-first mindset with hands-on operational ownership.
- Comfortable balancing automated processes with manual intervention when required.
- Continuously seeks to reduce complexity and manual effort while strengthening controls and transparency.
- Takes accountability for outcomes and follows through on solutions end-to-end.
- Thrives in a fast-paced environment, effectively managing multiple priorities without compromising quality.
- Collaborative, adaptable, and able to build strong relationships across teams.
- Proactive and curious, with a continuous improvement mindset.

Skills & Experience

- 1-6 years of experience in an operations, trading support, middle office, or data-driven role within financial markets.

- Experience supporting equities, listed and OTC derivatives, and/or structured products.

- Solid understanding of the trade lifecycle, including trade capture, clearing, settlement, and reconciliation processes.

- Knowledge of structured products and their underlying futures and options markets is highly desirable.

- Experience working in a fast-paced, technology-driven environment is preferred.

- Strong Python and SQL skills, with the ability to analyze data and develop automated solutions.

- Ability to design and implement operational tooling, dashboards, and workflow automation.

- Strong analytical and problem-solving capabilities, with a data-driven approach to decision-making.

- Excellent attention to detail and ability to identify, investigate, and resolve operational issues.

- Strong communication skills and the ability to work effectively with both technical and non-technical stakeholders.

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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