Windows Platform Infrastructure Engineer

Qube Research & Technologies

Qube Research & Technologies (QRT) is a global quantitative and systematic investment manager, operating in all liquid asset classes across the world. We are a technology and data driven group implementing a scientific approach to investing. Combining data, research, technology, and trading expertise has shaped our collaborative mindset, which enables us to solve the most complex challenges. QRT’s culture of innovation continuously drives our ambition to deliver high quality returns for our investors. Your future role within QRT: As a Hybrid EUC & Windows Platform Engineer, you will be part of the Global Infrastructure Team, responsible for designing, building, and supporting both Microsoft Windows Server / virtualization infrastructure and core End User Computing (EUC) services. Your role is critical in ensuring the smooth operation of core IT services that underpin research technology, trading platforms, market execution, and data processing, while also ensuring a secure, consistent, and high-performing end-user experience across Windows endpoints, identity, and productivity services. This role blends server platform engineering with modern EUC engineering, with a strong focus on Active Directory, Group Policy design, endpoint automation, and operational excellence. Windows Server & Core Infrastructure Engineering * Build, manage, and deploy Windows Server environments (2022–2025). * Design, deploy, and support a globally distributed, multi-forest Active Directory environment. * Configure and manage core AD services including DNS, replication, trusts, and identity integration with Entra ID. * Manage user lifecycle processes within Active Directory, including provisioning, access controls, delegation, and role-based access models. * Automate AD user and group management tasks, onboarding/offboarding workflows, and policy validation. * Troubleshoot complex AD authentication, Kerberos, NTLM, and group membership issues impacting end users. * Support infrastructure-as-code and configuration automation initiatives using PowerShell in combination with Ansible and Terraform where applicable. * Build and manage VMware ESXi infrastructure, clustering, and virtualisation services. * Optimise and troubleshoot server backups (e.g., Veeam) to ensure data integrity and disaster recovery readiness. * Configure and maintain monitoring and observability tooling (e.g., Splunk) for performance and security visibility. * Work with SAN/NAS storage platforms to ensure high availability and resilience. * Provide 2nd-line support and act as 3rd-line escalation for Windows Server and infrastructure-related incidents. End User Computing (EUC) & Endpoint Engineering * Engineer, build, and optimise Windows 10/11 desktop environments across physical and virtual platforms. * Support and optimise Citrix DaaS / VDI environments, including image management, GPO optimisation, and user experience tuning. * Support and optimise Microsoft Intune, Entra ID, and Microsoft 365 services to deliver secure and consistent user experiences. * Develop advanced PowerShell scripts to automate endpoint builds, software deployments, patch validation, and compliance reporting. * Provide escalation support for EUC incidents affecting business-critical users, including performance, application compatibility, device compliance, and authentication. * Identify recurring EUC issues and implement automation-based remediation strategies. * Design and manage Group Policy Objects (GPOs) for endpoint configuration, security hardening, user environment control, and compliance enforcement. * Own endpoint lifecycle processes including provisioning, configuration, patching, compliance, and decommissioning. * Configure and manage endpoint security baselines across both Intune and Group Policy (co-management or hybrid scenarios where applicable). * Build reporting and health-check scripts for endpoint compliance, patch levels, BitLocker status, and device posture. * Troubleshoot profile management, FSLogix, login performance, and policy conflicts in virtual environments. * Drive standardisation across Windows Server builds, endpoint baselines, GPO structures, and Citrix images. * Maintain technical documentation including AD design, GPO standards, endpoint baselines, and automation frameworks. * Provide cross-functional troubleshooting support across infrastructure, networking, storage, security, and cloud teams. * Stay informed about emerging Windows platform, EUC, and identity technologies to identify strategic improvement opportunities. Your present skillset (ideal candidate profile) * Extensive experience designing and supporting Windows Server and enterprise AD environments. * Strong hands-on expertise in Active Directory architecture, GPO design, DNS, replication, and identity troubleshooting. * Advanced PowerShell scripting skills for both server and EUC automation, including AD and endpoint management. * Deep understanding of Windows 10/11 enterprise builds, hardening, and lifecycle management. * Experience managing Microsoft Intune, Entra ID, Microsoft 365, and hybrid identity environments. * Experience supporting and optimising Citrix DaaS / VDI environments. * Experience with VMware ESXi, clustering, and virtual infrastructure. * Experience with backup platforms such as Veeam. * Strong knowledge of networking fundamentals, PKI/certificate services, and infrastructure security. * Strong troubleshooting capability across server, endpoint, identity, and virtual desktop layers. * Excellent communication skills with the ability to work independently and collaborate across global teams. QRT is an equal opportunity employer. We welcome diversity as essential to our success. QRT empowers employees to work openly and respectfully to achieve collective success. In addition to professional achievement, we are offering initiatives and programs to enable employees achieve a healthy work-life balance.

Qube Research & Technologies

Qube Research & Technologies (QRT) is a global quantitative and systematic investment manager, operating in all liquid asset classes across the world. We are a technology and data driven group implementing a scientific approach to investing. Combining data, research, technology and trading expertise has shaped QRT’s collaborative mindset which enables us to solve the most complex challenges. QRT’s culture of innovation continuously drives our ambition to deliver high quality returns for our investors. We are looking for an experienced DevOps Engineer to help design, build and maintain scalable, reliable pipelines and infrastructure supporting our technology, trading platform, and market access teams. You’ll also help set standards and best practices across teams, while building self-serve tooling that improves reliability and developer productivity. Your future role at QRT * Design and implement development tooling and platform infrastructure to improve reliability and developer productivity * Build, automate and continuously improve CI/CD pipelines and release processes * Manage environment deployments, upgrades and migrations * Partner with software engineers to ensure that development follows established processes and engineering standards and works as intended in production * Build tools and APIs to reduce the occurrence of errors and improve user experience * Develop software to integrate with internal back-end systems and their APIs * Improve observability and operational readiness through improvements to monitoring, alerting and runbooks Your present skillset * Experience operating infrastructure in hybrid environments (on-prem and AWS) * Experience with Kubernetes (preferably AWS EKS) and AWS infrastructure (EC2, VPC/networking, load balancing) * Good knowledge of Infrastructure as Code (Terraform, OpenTofu) * Good knowledge of Windows & Linux scripting * Good knowledge of Python * Good knowledge of Git * Working knowledge of C/C++, Make, CMake * Experience working within a mature CI/CD highly desirable. * Knowledge of monitoring tools like Prometheus, Grafana; Elasticsearch, Splunk, Coralogix * Problem solving attitude with a focus on automation * Strong team player with great communication skills QRT is an equal opportunity employer. We welcome diversity as essential to our success. QRT empowers employees to work openly and respectfully to achieve collective success. In addition to professional achievement, we are offering initiatives and programs to enable employees to achieve a healthy work-life balance.

Qube Research & Technologies

Qube Research & Technologies (QRT) is a global quantitative and systematic investment manager, operating in all liquid asset classes across the world. We are a technology and data driven group implementing a scientific approach to investing. Combining data, research, technology, and trading expertise has shaped our collaborative mindset, which enables us to solve the most complex challenges. QRT’s culture of innovation continuously drives our ambition to deliver high quality returns for our investors. Your future role within QRT You will join the Security team, working closely with Software Engineers and Infrastructure teams to embed security into the design, development, and operation of systems across cloud services, business applications, and core infrastructure. * Support the implementation and operation of product security controls across cloud services, core infrastructure, and business applications on Windows and Linux platforms * Work with engineering teams to integrate security into system design and development, applying practical approaches suitable for fast-moving environments * Contribute to secure software development practices, including supporting security reviews across languages such as Python, C++, Rust, Go, and Kotlin/Java * Perform threat modelling, vulnerability assessments, and security code reviews with guidance from senior team members * Assist with integrating and operating security tooling (e.g., SAST, DAST, dependency scanning) within CI/CD pipelines and runtime environments * Identify security risks and contribute to remediation and mitigation plans with engineering teams * Perform vendor security reviews to assess third-party security practices against internal standards * Build your product security knowledge and share learnings with peers across engineering teams Requirements: * 3–5 years of experience in product security, application security, software engineering, or a related role * Hands-on experience with secure coding practices and at least one of: Python, C++, Rust, Go, Kotlin/Java * Solid technical foundation in software development, system architecture, or infrastructure, with a strong interest in security * Working knowledge of security principles and common vulnerabilities affecting software, cloud platforms, and business applications * Experience securing Windows and/or Linux-based systems * Practical experience with at least one cloud platform (AWS or Microsoft Azure), ideally in hybrid environments * Familiarity with threat modelling, vulnerability management, and risk assessment concepts * Experience using or integrating security scanning tools into development workflows and/or CI/CD pipelines * Strong problem-solving skills, clear communication, and willingness to learn in a fast-paced environment * Exposure to low-latency or performance-sensitive systems * Experience in financial services and/or regulated environments * Interest in automation and security tooling development   QRT is an equal opportunity employer. We welcome diversity as essential to our success. QRT empowers employees to work openly and respectfully to achieve collective success. In addition to professional achievement, we are offering initiatives and programs to enable employees achieve a healthy work-life balance.