Senior Market Making Software Engineer

Marex; Greater London; On-site; GBP 90,000 - 120,000; Full time

Job summary

Marex is seeking a Market Making Senior Software Developer to design, develop and maintain high-quality applications that support its market making capabilities. You will work with business stakeholders and engineering teams to deliver robust technical solutions across multiple asset classes, driving technology-led growth.

The role emphasizes collaboration, scalable services, secure and observable systems, and alignment with regulatory requirements within a fast-paced trading environment.

Qualifications

• Experience in C# .NET.
• Experience in at least one of JavaScript, Typescript, React, NodeJS, GraphQL, Docker.
• Experience of NoSQL or RDMS databases.
• Knowledge of modern CI/CD and DevOps practices.
• Experience working with AWS cloud services (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.
• Strong verbal and written communication skills.

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.

Skills

C# .NET

JavaScript

Typescript

React

NodeJS

GraphQL

Docker

AWS

NoSQL

RDMS

CI/CD

DevOps

BDD/TDD

Agile/Scrum

Software architecture

Communication

Job description

Marex is seeking a Market Making Senior Software Developer to design, develop and maintain high-quality applications that support its market making capabilities. You will work with business stakeholders and engineering teams to deliver robust technical solutions across multiple asset classes, driving technology-led growth.

The role emphasizes collaboration, scalable services, secure and observable systems, and alignment with regulatory requirements within a fast-paced trading environment.