Software Developer

Join the Enterprise team working on Engine Room, one of Marex s most strategic technology initiatives. As a Full Stack Python Developer, you ll help build and evolve a modern, enterprise-grade platform at the core of the business. We re growing quickly and need energetic, flexible thinkers who can respond to changing demands, work collaboratively, and bring ideas to the table. If you enjoy solving complex problems in a fast-moving environment and want to help shape technology that truly matters, this is the role for you.

Responsibilities

• Design, develop and maintain high-quality Python based solutions within the Engine Room platform.
• Contribute to the development of shared enterprise capabilities including API gateways, centralised APIs, real-time data streaming, connectivity frameworks and AI-enabled services.
• Participate in shaping Marex s shift to becoming AI-native, by building agentic tools into the developer stack, liaising with researchers and the front office, and contributing to the AI ecosystem of the Enterprise team
• Build a centralised development environment for use by front office developers
• 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

• Strong experience in Python development, building production-grade backend services and APIs (e.g. FastAPI, Flask, Django).
• Good working knowledge of at least one Python-based front end framework
• Experience working with AWS cloud services (e.g. ECS/EKS, Lambda, S3, RDS, API Gateway)
• Experience with event-driven architectures, ideally using Kafka.
• Understanding of CI/CD pipelines, automated testing and DevOps practices.
• Strong understanding of software design principles (SOLID, clean architecture, domain-driven design concepts).
• Experience working in Agile/Scrum delivery environments.
• Experience working across multiple teams or organisations, solving business problems with technology.

Desirable

• Working knowledge of NodeJS or C#.
• Experience in with Beacon, Athena / SecDB or similar.
• Experience with Infrastructure as Code, ideally Terraform.
• Experience building or contributing to enterprise platform or shared services environments.
• Exposure to API gateway technologies and distributed systems design.
• Experience implementing observability tooling (logging, monitoring, tracing).
• Financial services or capital markets experience (advantageous but not essential).
• Experience using CDM as a data model (advantageous but not essential).