Trading System Implementation Specialist

About the Role Marex is seeking a Trading System Implementation Specialist for the Trading System Implementation Team within the Capital Markets group. The role is responsible for the strategic design, implementation, integration, and ongoing enhancement of Marex's trading technology ecosystem, working across Trading, Technology, Operations, Risk, Compliance, and external clients to support electronic trading capabilities and regulatory compliance. The successful candidate will own client and vendor integrations, trading platform deployments, workflow design, and onboarding initiatives, ensuring scalable, resilient systems aligned with business objectives. What You'll Do

• Lead the design, implementation, and enhancement of trading system infrastructure supporting the Capital Markets group.
• Manage end-to-end onboarding and integration projects for clients, counterparties, vendors, and trading platforms.
• Serve as the primary business owner for client-facing FIX connectivity, workflow design, and certification processes.
• Partner with Trading, Technology, Operations, Risk, and Compliance teams to define and implement scalable trading solutions.
• Drive integration efforts across OMS, EMS, market data, portfolio management, and execution platforms.
• Establish and maintain governance, implementation standards, and best practices for trading system deployments and client onboarding.
• Oversee testing strategies, certification processes, and production readiness activities for new trading workflows and technology initiatives.
• Monitor trading system performance and operational metrics, ensuring timely resolution of issues and continuous process improvement.
• Identify opportunities to enhance automation, scalability, and operational efficiency across trading workflows.
• Ensure trading systems and associated processes comply with regulatory requirements, risk management standards, and internal control frameworks.
• Manage relationships with external vendors, technology providers, and key client stakeholders.
• Provide regular updates and strategic recommendations to senior management regarding implementation initiatives, technology enhancements, risks, and business opportunities.
• Mentor junior team members and contribute to the development of the broader Trading Systems Implementation function.
• Ensure compliance with regulatory requirements (SEC, FINRA, NFA, CFTC and other exchanges).
• Adhere to Marex’s Code of Conduct and report breaches or risk events; contribute to risk management processes. What We're Looking For
• Demonstrates curiosity and a proactive mindset.
• Resilient in a challenging, fast-paced environment.
• Ability to take a high level of responsibility in a fast-paced, high-volume environment.
• Excellent relationship-building, networking, and influencing skills.
• Strategic collaborator with insight and agility, able to anticipate future challenges and drive operational effectiveness.
• Effective communication skills, including ability to translate technical concepts for non-technical stakeholders and provide regular updates to senior management and trading desks. Nice to Have
• None specified Compensation & Benefits
• None specified