Role Summary
As a Market Making Senior Software Developer, you will collaborate closely with business stakeholders and engineering teams to design, develop, and maintain products that enhance Marex’s market‑making capabilities and operational efficiency across multiple asset classes and geographies.
Responsibilities
* Design, develop and maintain high‑quality internal and external facing applications.
* Build scalable, resilient and high‑performance services that support multiple business streams across Marex.
* Collaborate closely with product owners, architects and other engineering teams to translate business requirements into robust technical solutions.
* Contribute to architectural design discussions and help shape platform standards, patterns and best practices.
* Ensure solutions are secure, observable and aligned with enterprise governance and regulatory requirements.
* Support the continuous improvement of CI/CD pipelines, automated testing and DevOps practices.
* Participate actively in team discussions, technical brainstorming sessions and knowledge sharing.
* Adapt quickly to changing priorities and evolving business demands in a fast‑paced environment.
* Provide support and troubleshooting for production systems where required, ensuring high availability and reliability.
* Contribute to documentation and maintain clear technical artefacts to support long‑term platform sustainability.
* Promote a collaborative, inclusive and high‑performing team culture.
Competencies
* A collaborative team player, approachable, self‑efficient and influences a positive work environment.
* Demonstrates curiosity.
* Resilient in a challenging, fast‑paced environment.
* Ability to take a high level of responsibility in a fast pace and high‑volume environment.
* Excels at building relationships, networking and influencing others.
* Strategic collaborator with insight and agility, able to anticipate future challenges, ensuring operational effectiveness.
Skills and Experience - Essential
* Experience in at least one of JavaScript, TypeScript, React, Node.js, GraphQL, Docker.
* Experience with NoSQL or RDMS databases.
* Knowledge of modern CI/CD and DevOps practices.
* Experience working with AWS cloud services (e.g. ECS/EKS, Lambda, S3, RDS, API Gateway).
* Knowledge of BDD/TDD.
* Experience working in Agile / Scrum delivery environments.
* Methodical approach to software architecture and design and experience employing the right design choices for a given project.
* Strong verbal and written communication skills.
Skills and Experience - Desirable
* Experience in C# .NET.
* Extended knowledge across multiple asset classes.
* Trade Lifecycle knowledge: pre‑trade, trade, settlement/clearing, risk – full front to back.
* Experience with trading or pricing platforms.
* Microsoft technologies, cloud services, hosting and deployment.
* Experience implementing observability tooling (logging, monitoring, tracing).
* Experience working in a regulated environment and knowledge of the risk and compliance requirements associated with this.
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 proper standard of market conduct.
* Act to deliver good outcomes for retail customers.
Marex is an equal‑opportunity employer committed to diversity and inclusion.
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