Collaboration & Mobility Engineer

Millennium; Greater London; On-site; GBP 65,000 - 90,000; Full time

Job summary

Millennium is seeking an experienced IT Infrastructure Administrator to join our London-based team. You will administer Intune, manage app lifecycles, and design secure access using Entra Proxy and Global Secure Access across corporate devices and BYOD.

The role requires strong PowerShell scripting, MS 365 knowledge, and excellent collaboration across global teams. You will work with vendors and internal developers to ensure secure, scalable mobility solutions.

Qualifications

• Experience with mobile device management and mobile application management using Microsoft Intune.
• Experience with Microsoft Entra Application Proxy and Global Secure Access.
• Experience with Microsoft 365 services (Azure AD, Exchange Online, OneDrive, SharePoint Online).

Responsibilities

• Administer Microsoft Intune for device enrollment, compliance, and migrations.
• Manage lifecycle of mobile apps across BYOD environments.
• Design and maintain Entra Application Proxy solutions for secure publish.
• Engineer and support Global Secure Access, policies, and CA integration.
• Coordinate iOS/iPadOS release readiness and Intune SDK integration.
• Validate policies, monitor infrastructure health and performance.
• Resolve requests and incidents via ServiceNow and vendor support.
• Automate processes, contribute to global projects, document procedures.

Skills

Intune

Entra Proxy

PowerShell

MS 365

Communication

Tools

Microsoft Intune

Entra Proxy

Global Secure Access

Job description

About Millennium

Millennium is a global, diversified alternative investment firm, founded in 1989. Defined by evolution, innovation and focus, Millennium’s mission is to deliver results for our investors.

About Millennium

Millennium is a global, diversified alternative investment firm, founded in 1989. Defined by evolution, innovation and focus, Millennium’s mission is to deliver results for our investors.

Our people are empowered with both independence and support: the autonomy to pursue ideas with conviction and the backing of a global network committed to collaboration, disciplined risk management and continuous learning. With opportunities to deepen expertise and accelerate development, talent at Millennium is equipped to adapt, evolve and build lasting impact over time. Discover how transformative growth accelerates impact.

Meet the Team

The Information Technology organization supports Millennium’s active, multi-manager business model through flexible, scalable technology and advanced proprietary systems, including next-generation analytical and trading capabilities. Within Infrastructure, the Collaboration and Productivity team manages email, chat, mobility, and Microsoft 365 services. The team partners with global infrastructure groups, application developers, and vendors to deliver secure, scalable collaboration and mobility solutions.

What You’ll Do

• Administer Microsoft Intune for mobile device enrollment, compliance, application protection, configuration profiles, and application assignments, and lead migrations of corporate devices and applications to Intune
• Manage the lifecycle of internally developed and third-party mobile applications across corporate and bring-your-own-device environments, including deployment, testing, upgrades, and retirement
• Design and maintain Microsoft Entra Application Proxy solutions, including connector architecture, pre-authentication, and single sign-on, to securely publish on‑premises applications
• Engineer and support Microsoft Global Secure Access, including Private Access and Internet Access policies, traffic forwarding profiles, and client deployment; integrate these capabilities and Application Proxy with Conditional Access, identity controls, and monitoring
• Coordinate iOS and iPadOS release‑readiness testing and partner with developers on Intune SDK integration, managed browser behavior, single sign‑on, and secure connectivity
• Validate mobile application policies, access dependencies, connectivity, and data protection controls; monitor collaboration infrastructure health, capacity, and performance
• Resolve requests and incidents through ServiceNow, support business‑critical escalations, and own vendor support cases with Microsoft, Apple, and third‑party providers through resolution
• Automate processes and workflows, contribute to global infrastructure projects and new services, and document infrastructure and operational procedures

What You Bring

• Experience with mobile device management and mobile application management using Microsoft Intune, including mobile SDK integration
• Experience with Microsoft Entra Application Proxy and Global Secure Access
• Experience with Microsoft 365 services, including Microsoft Entra ID (formerly Azure AD), Exchange Online, OneDrive, and SharePoint Online
• Knowledge of mobile application development for iOS and Android; experience with BlackBerry UEM is preferred
• Broad knowledge of Windows Server administration, network design, storage, and load balancing
• PowerShell scripting skills to support automation and operational improvements
• Strong analytical and problem‑solving skills, with the ability to exercise independent judgment and work effectively with moderate supervision
• Strong communication and interpersonal skills, with a collaborative approach and willingness to learn and contribute across teams