Senior Systems Engineer (Linux & Public Cloud Specialist) in London

Department Overview: Global Enterprise Services (GES) is one of the foundational divisions of the TMX Group, that empowers internal TMX business lines for their technology needs, operations and digital innovation. GES as a client centric organization focuses on building technology capabilities, enabling our clients with the best technology solutions and providing effective technology financial and resource management processes. The cost effective operation is a key attribute of the GES execution. GES is responsible for delivery of all technology initiatives and services across TMX.

Role Summary: The Systems Engineer is responsible for management and support of various infrastructure technologies on the distributed system platforms. The incumbent will design, build and maintain technical solutions based on business requirements and evaluation of information technology trends and practices. The engineer will require a broad skill set with excellent problem solving and analytical skills in addition to a strong automation and programmatic, Infrastructure as Code, approach to systems management.

The Role: You will be part of the Information Technology (IT) team that demonstrates superb technical ability, working in a challenging environment, supporting the business in day-to-day operations. The primary responsibility of this position is to develop, maintain, continuously improve and support internal IT infrastructure. The Systems Engineering team is situated within the IT & InfoSec function, working directly alongside the Infrastructure Engineering, Networking Engineering, and Service Delivery teams. You will be providing expert infrastructure oversight, ensuring successful delivery and performance of IT services for our clients and the fulfillment of our obligations and processes. The role will take on delivering internal projects, BAU workstreams (patching, application and infrastructure support), and supporting internal users. This role is mainly focused on administering our Private Cloud technology stack.

Responsibilities:

• Infrastructure: Research, design, and deploy technical solutions across on-premises Private Cloud and Public Cloud (Azure & AWS) environments. Manage the deployment, maintenance, and upgrade paths of Linux infrastructure and public cloud resources. Identify, deploy, and maintain appropriate hybrid connectivity options across environments. Maintain and test Business Continuity and Disaster Recovery (BC/DR) plans and systems across Private and Public Cloud environments. Contribute to the overall quality of service delivered to internal users and clients. Support the team in handling and resolving critical technical incidents.
• Design: Contribute to the roadmap for the development and evolution of systems and multi-cloud infrastructure to ensure solutions are scalable, secure, cost-effective, and aligned with future business needs. Architect and standardise scalable cloud landing zones, hybrid network topologies, and cross-platform infrastructure patterns across AWS, Azure, and on-premises Linux environments. Design robust, automated Infrastructure-as-Code (IaC) modules and pipelines using Terraform and Ansible to ensure reproducible, security-compliant provisioning across all environments. Lead architectural design reviews for new workload migrations and deployments, defining criteria for high availability, fault tolerance, and automated disaster recovery.
• Continuous improvement: Drive infrastructure automation (IaC) and design improvements for efficient support of environments, applications, and clients. Actively contribute to increasing service availability through iterative improvements to Linux Private Cloud and Public Cloud solutions. Maintain, update, and continuously improve standardized enterprise WSL (Windows Subsystem for Linux) images built via Infrastructure as Code (IaC) workflows to provide consistent, secure developer environments.

The Person:

• Technical: Linux Specialism: Deep knowledge and proven hands-on experience managing an enterprise Linux estate in a corporate environment (especially Red Hat-based), with strong working knowledge of Red Hat Satellite, IDM, and Ansible Automation Platform (AAP). Public Cloud Expertise: Strong, proven hands-on experience designing, architecting, and managing Public Cloud platforms (Azure and AWS) in production environments. Infrastructure as Code (IaC): Strong proficiency in IaC tooling, specifically Ansible and Terraform (HCP preferred, OSS acceptable). DevOps & Containers: Robust experience deploying and managing DevOps tooling and container orchestration, including HAProxy, Kubernetes, Helm charts, HashiCorp Vault, ArgoCD, Istio, AKS, EKS, and ECS. Windows & Active Directory Knowledge: Solid working knowledge of Windows Server administration within an Active Directory environment. Scripting Skills: Excellent scripting capabilities using Bash, Python, and PowerShell. Desirable Experience: Experience with VDI infrastructure, Postfix mail server administration, and VMware vCenter environments.
• Interpersonal: High affinity for teamwork and collaboration. Excellent verbal and written communication skills, with the ability to listen and integrate diverse technical viewpoints. Ability to manage time, prioritise workloads, and work effectively under pressure. Self-starter possessing a proactive nature, while remaining process- and quality-driven. Business-minded and focused on value creation; passionate about solving real business needs rather than using technology for technology's sake.

Why us? Opportunity to learn: Work with a wide variety of tools and systems (e.g., VMware vCenter, MS SQL AlwaysOn clustered environments, PowerShell, Zabbix) with encouragement to continually improve. Collaborative Culture: Be part of a social, close-knit team with regular team and company-wide events. Tailored Growth: Scope to tailor the role to your technical strengths as we continue to invest heavily in our Linux and Public Cloud footprint. Trayport is committed to creating and sustaining a collegial work environment in which all individuals are treated with dignity and respect and one which reflects the diversity of the community in which we operate. We provide accommodations for applicants and employees who require it.