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As a Senior Full Stack Developer specialising in C# .NET, you will be a pivotal member of our Software Development team in Clearing Technology, driving an AI-first approach to the creation and enhancement of secure, responsive web-based platforms. Marex is a full clearing member of major financial exchanges – across energy, commodities, metals and financial markets.
You will leverage modern AI-assisted development tools and practices to accelerate delivery, improve code quality, and enhance developer productivity, while ensuring solutions meet the high standards of control, auditability, and reliability required within financial systems, including compliance with SOX (Sarbanes-Oxley) requirements.
Your expertise as a full stack developer in C# .NET and Node.js will be instrumental in delivering robust, scalable, and well-governed applications. You will maintain a strong emphasis on testing, traceability, and deterministic system behaviour.
As a Senior Full Stack Developer specialising in C# .NET, you will be a pivotal member of our Software Development team in Clearing Technology, driving an AI-first approach to the creation and enhancement of secure, responsive web-based platforms. Marex is a full clearing member of major financial exchanges – across energy, commodities, metals and financial markets.
You will leverage modern AI-assisted development tools and practices to accelerate delivery, improve code quality, and enhance developer productivity, while ensuring solutions meet the high standards of control, auditability, and reliability required within financial systems, including compliance with SOX (Sarbanes-Oxley) requirements.
Your expertise as a full stack developer in C# .NET and Node.js will be instrumental in delivering robust, scalable, and well-governed applications. You will maintain a strong emphasis on testing, traceability, and deterministic system behaviour.
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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
Understanding of financial products across derivatives, FX, commodities, cash equities or fixed income.
Good knowledge of the post-trade lifecycle, including confirmation/affirmation, allocations, settlement, clearing, collateral and margin, lifecycle events, reconciliations, and exceptions management.
Exposure to embedding AI capabilities into end-user applications (e.g. intelligent workflows, automation, or decision support)
Experience of SOLID
Experience of Domain Driven Design
Experience working in a regulated environment and knowledge of the financial markets
A collaborative team player, approachable, self-efficient, and able to foster a positive engineering culture, including adoption of AI-first practices
Demonstrates curiosity, particularly in emerging technologies, AI capabilities, and continuous improvement of development practices
Resilient in a challenging, fast-paced, and regulated environment
Excels at building relationships, networking, and influencing others across both technical and business teams
Strategic collaborator with insight and agility, able to anticipate future challenges, including those related to scale, regulation, and technology evolution, ensuring operational effectiveness
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
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.
Adaptable and Nimble - Our size and flexibility is an advantage. We are big enough to support our client’s various needs, and adaptable and nimble enough to respond quickly to changing conditions or requirements. A non-bureaucratic, but well controlled environment fosters initiative as well as employee satisfaction.
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.
If you would like to receive any information in a different way or would like us to do anything differently to help you, please include it in your application.
Public financial-services platform providing liquidity, market access, clearing and hedging solutions to energy, commodities and financial-market clients.
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