London, GB Full-Time Information Technology
Role Summary
As a software developer, you will become part of the Operations Technology team, supporting systems that facilitate operational processing across a range of asset classes, including Exchange‑Traded Derivatives (ETD), OTC Energy, and Broker & Swap Dealer workflows.
The role involves maintaining and improving applications for post‑trade operations such as deliveries, segregation movements, commissions, fees, and adjustments. These systems ensure accurate exchange and off‑exchange activity across internal platforms and client accounts. The work is highly data‑driven and operationally critical, processing and validating high‑integrity transactional and position data such as balances, margin outputs, cash movements and fee calculations. Accuracy, traceability and consistency are essential, as issues can lead to reconciliation breaks, operational risk or regulatory scrutiny. The developer will work closely with operations stakeholders, business analysts, QA and other technology teams to deliver reliable solutions that support daily operational processes aligned with exchange and clearing timelines.
Responsibilities
- Design, code and test all components of modern web applications.
- Contribute to the overall architecture and design of the technology created/maintained by the development delivery team.
- Develop solutions to a high standard that is maintainable, testable and meets the requirement’s acceptance criteria.
- Adhere to development best practices and processes.
- Communicate with team members, introduce ideas and keep abreast of the latest technologies.
- Liaise with business users to gather application requirements.
- Ensure delivered systems are of production quality; ensure software is adequately documented for handover to the business.
- Follow coding standards and defined development process.
- Resolve third line support issues in a professional and timely manner.
- Ensure compliance with regulatory requirements under the SEC, FINRA, NFA, CFTC and other applicable exchanges.
- Adhere to the operational risk framework for your role, ensuring compliance with all regulatory or company‑determined parameters.
- Demonstrate the highest level of integrity and conduct, reflecting company values.
- Always comply with Marex’s Code of Conduct.
- Be fully aware of and adhere to internal policies that relate to your role or any other activities.
- Report breaches of policy to Compliance and/or your supervisor as required.
- Escalate risk events immediately.
- Provide input to risk management processes, as required.
Competencies, Skills, Experience & Qualifications
- Excellent verbal and written communication skills.
- A collaborative team player, approachable, self‑efficient and influences a positive work environment.
- Resilient in a challenging, fast‑paced environment.
- Ability to take a high level of responsibility in a fast‑paced, high‑volume environment.
- Excellent at building relationships, networking and influencing others.
Essential Skills and Experience
- Experienced in C# .NET.
- Experience with Docker / knowledge of containers.
- Experience with NoSQL or RDMS databases.
- Infrastructure as code, Terraform or equivalent.
- Modern CI/CD and DevOps practices.
- Cloud technology, ideally AWS (Amazon Web Services).
- Knowledge of BDD/TDD.
- Agile and scrum development methodologies.
- Methodical approach to software architecture and design, and experience employing the right design choices for a given project.
- Experience working in a regulated environment and knowledge of the risk and compliance requirements associated with this.
- Experience with modern frontend frameworks, ideally React; Angular, Vue, or similar frameworks welcome.
- Experience with Node.js and/or GraphQL.
- Experience with exchange and off‑exchange traded operations or post‑trade systems, including:
Exchange & Post‑Trade Operations Experience
- Processing of positions, balances, and operational adjustments.
- Deliveries processing and settlement workflows.
- Segregation movements and client money processing.
- Commission and fee calculations.
- Reconciliation processes and operational exception handling.
- Integration with internal and external trading or clearing data sources.
Conduct Rules
- 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 a proper standard of market conduct.
Commitment to Equality and Inclusion
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 during recruitment.
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