Enterprise Systems Engineer

About the role

Job Description Building Trusted Markets - Powered by Our People At Cboe Global Markets, we inspire our people to solve complex challenges together because what we do matters. We provide the financial infrastructure that powers the global economy. As a leading provider of market infrastructure and tradable products, Cboe delivers cutting-edge trading, clearing and investment solutions to market participants around the world. We're building meaningful ways to support professional and personal development while strengthening the trust we've earned as a global market leader. Our teams are empowered to share ideas, actively pursue them and bring on a challenge. As champions of internal mobility and access to opportunity, we encourage our people to 'go for it' and equip our managers with the training to coach their teams to the next level. Sound like the place for you? Join us! Role Overview As an Enterprise Systems Engineer at Cboe, you will design, engineer, and deliver infrastructure solutions that support both internal operations and customer-facing platforms. You will play a key role in maintaining the reliability, security, and scalability of enterprise systems while resolving complex technical issues and driving continuous improvement across infrastructure services. This role focuses on deploying and supporting enterprise-grade infrastructure across Windows Server, VMware, Azure, and Microsoft 365 platforms. You will ensure high availability, disaster recovery readiness, and compliance with regulatory frameworks, particularly SOX-critical systems. Your responsibilities include automation, observability, and security hardening, as well as mentoring junior engineers and collaborating with cross-functional teams to support deployments, upgrades, and architectural decisions. The ideal candidate brings a strong engineering mindset combined with a service-delivery orientation - someone who can own complex incidents end-to-end, and communicate technical decisions clearly to peers and other stakeholders across multiple time zones. This role is a key node in Cboe's follow-the-sun support model, requiring sound judgment, proactive communication, and a high standard for operational discipline. Major Job Duties Infrastructure Design & Deployment Design, architect, and deploy infrastructure solutions across Windows Server, VMware vSphere, Azure, and Microsoft 365 platforms Ensure alignment with business objectives and regulatory requirements and security baselines System Administration & Support Administer and troubleshoot core infrastructure services: Active Directory, DNS, DHCP, GPO, DFS, File Services, SQL Server Manage virtualisation platforms: VMware vSphere, Horizon VDI, and Azure Virtual Desktop Manage PKI/certificate lifecycles and lead security hardening using Microsoft Defender, Conditional Access, and Rights Management Automation & Observability Automate system operations using PowerShell, Graph API, and IaC tools like Ansible Build and maintain observability dashboards to proactively detect and resolve issues while minimising false positives Contribute reusable automation scripts and runbooks to the team knowledge base Compliance & Documentation Maintain accurate records of hardware, software licenses, and configuration changes Ensure audit readiness and compliance with SOX and other applicable regulatory frameworks Develop and document repeatable processes and runbooks for cross-training and knowledge sharing Disaster Recovery & Backup Ensure high availability and DR readiness of all critical enterprise systems Implement and manage backup strategies using Rubrik; validate RTO/RPO through regular testing Collaboration & Mentorship Collaborate with application, cybersecurity, and business teams on deployments, upgrades, and architectural decisions Mentor junior team members; conduct knowledge-sharing sessions Participate in an on-call rotation including periodic daytime and infrequent weekend coverage Innovation & Continuous Improvement Stay ahead of emerging technologies in cloud computing, identity management, automation, and AI-driven operations Evaluate and recommend innovations for strategic adoption; produce business cases for leadership review Track and report on technical debt; propose prioritised remediation plans tied to the technical risk Required Skills & Experience 3+ years of experience in an enterprise setting - experience and excellent knowledge of Microsoft Cloud Technologies - Microsoft 365, Endpoint Manager, Exchange Online, Microsoft Defender for Endpoint, Entra ID, Conditional Access Policies, Microsoft Defender for Cloud Apps. Extensive expertise in Windows Server 2019/2022/2025, Active Directory, DNS, DHCP, Group Policy (GPO), DFS and File Services, and SQL Server. Strong knowledge and experience with backup solutions like Rubrik Comprehensive knowledge and enthusiasm for automating tasks using PowerShell and Graph API. Proficient in automation and configuration manag