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Platform Engineer

Job in City Of London, Central London, Greater London, England, UK
Listing for: Rex
Full Time position
Listed on 2026-10-05
Job specializations:
  • IT/Tech
    Cloud Computing: Infrastructure & Operations, Systems Engineer, IT Support
Salary/Wage Range or Industry Benchmark: 70000 - 100000 GBP Yearly GBP 70000.00 100000.00 YEAR
Job Description & How to Apply Below
Location: City Of London

About Marex

Marex Group plc (NASDAQ: MRX) is a diversified global financial services platform providing essential liquidity, market access and infrastructure services to clients across energy, commodities and financial markets. The group provides comprehensive breadth and depth of coverage across four core services: clearing, agency and execution, market making, and hedging and investment solutions. It has a leading franchise in many major metals, energy and agricultural products, with access to 60 exchanges.

The group provides access to the world’s major commodity markets, covering a broad range of clients that include some of the largest commodity producers, consumers and traders, banks, hedge funds and asset managers. With more than 40 offices worldwide, the group has over 3,000 employees across Europe, Asia and the Americas.

For more information visit

Vacancy Number: VN3135

Department description

Marex has unique access across markets with significant share globally both on and off exchange. The depth of knowledge amongst its teams and divisions provides its customers with clear advantage, and its technology-led service provides access to all major exchanges, order-flow management via screen, voice and DMA, plus award-winning data, insights and analytics.

The Technology Department delivers differentiation, scalability and security for the business. Reporting to the COO, Technology provides digital tools, software services and infrastructure globally to all business groups. Software development and support teams work in agile ‘streams’ aligned to specific business areas. Our other teams work enterprise-wide to provide critical services including our global service desk, network and system infrastructure, IT operations, security, enterprise architecture and design.

The Platform Engineering function strives to automate infrastructure management and provide Marex technology teams with self-service tools and workflows with the aim to streamline software delivery and accelerate the pace of innovation.

Role Summary

As a Platform Engineer you will help the team creating a platform where building, testing, and releasing of software can happen rapidly, frequently and reliably. You will be a Dev Ops advocate working closely with development and operations teams improving the collaboration whilst removing any impediments through automation, improved tooling, or processes. You will play a key role in a multi-disciplined team building and operating a new security conscious cloud environment.

We are seeking an engineer with a passion for automation and scripting to enhance and streamline our operations and engineering practices. The ideal candidate will leverage one or more scripting languages, Ansible, and Infrastructure as Code (IaC) tools like Terraform to automate our configurations, monitoring, and troubleshooting.

Responsibilities Role specific:
  • Build and operate a platform used by development and operations teams to provision their infrastructure and run their applications in the cloud and on-premises. Perform weekend work as necessary to carry out maintenance, participate in on-call duties and respond to support escalations to ensure the operational health of the platform. Support any teams using the platform as required.
  • Deliver a continuous integration and deployment platform that integrates seamlessly with the development tools already in use and ensure its effectiveness to delivery software rapidly.
  • Improve the developer experience, facilitate developers in building cloud infrastructure and deploying their applications free of impediments.
  • Develop policies, standards, and guidelines for IAC and CI/CD that teams can follow.
  • Propose and implement workflow and toolchain improvements to automate…
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