At EY, you’ll have the chance to build a career as unique as you are, with the global scale, support, inclusive culture and technology to become the best version of you. And we’re counting on your unique voice and perspective to help EY become even better, too. Join us and build an exceptional experience for yourself, and a better working world for all.
MS Exchange Administrator
Enterprise Technology provides reliable, secure and resilient technology services and solutions to support over 350,000 EY people. As part of Enterprise Technology, you’ll be at the forefront of enabling innovative technologies including emerging collaboration tools and world-class technology infrastructure.
Our aim is to build an outstanding customer experience with clear investment in innovation, alongside operational excellence that delivers efficient, quality services and solutions. You will work with technologists and business specialists to meet the increasing pace of our business. That means more growth for you, exciting learning opportunities, career choices, and the chance to make a real impact.
The opportunity
Responsible for supporting and administering global Messaging and Directory services, with primary accountability for Microsoft Exchange Server On-Premises patching, maintenance and related infrastructure activities.
The role also requires working knowledge of Exchange Online and hybrid Exchange to support end-to-end service operations, troubleshooting and coordination across the messaging environment.
This entails following ITIL methodologies and may include infrastructure maintenance, upgrades, migrations, vendor coordination, documentation, knowledge sharing and training of team members.
Your key responsibilities
- Microsoft Exchange Server On-Premises administration and infrastructure support.
- Plan, coordinate and execute Microsoft Exchange Server On-Premises patching activities, including Security Updates (SUs), Hotfix Updates (HUs), Cumulative Updates (CUs), Windows updates and required prerequisites.
- Review Microsoft security advisories, release notes, known issues, prerequisites and dependencies, and translate them into patch-readiness assessments and implementation plans.
- Prepare Exchange servers for maintenance using approved procedures, including service health checks, Database Availability Group (DAG) and database validations, transport queue checks, load-balancer coordination and server maintenance mode.
- Troubleshoot patch installation failures and post-patching issues using Exchange setup and update logs, Windows event logs, PowerShell, HealthChecker output and other approved diagnostic tools.
- Create and manage change records, implementation plans, validation evidence, rollback plans, stakeholder communications and closure documentation in accordance with established change-management processes.
- Coordinate patching across production and non-production environments, including maintenance windows, shift coverage, technical bridge support, vendor engagement and escalation to Microsoft Support when required.
- Provide operational support for Exchange Online and hybrid Exchange, including recipient administration, connectors, accepted domains, mail flow, message tracing and escalation of cloud-side issues.
- Share technical knowledge through operational documentation and classroom or hands-on training.
Skills and attributes for success
- Strong ownership of Exchange Server On-Premises patching in large, business-critical environments.
- Methodical approach to patch assessment, risk identification, dependency validation, implementation, validation and rollback planning.
- Strong troubleshooting and root-cause-analysis skills across Exchange Server, Windows Server, Active Directory, DNS, IIS, networking and load-balancing dependencies.
- Ability to work effectively during critical maintenance windows, service-impacting incidents and accelerated security-patching activities.
- Strong attention to detail in change records, technical procedures, validation evidence, server inventories and compliance reporting.
- Ability to communicate technical risks, implementation status and service impact clearly to technical teams, service owners, vendors and leadership stakeholders.
- Strong teamwork, organization, prioritization and time-management skills in a globally distributed and cross-cultural environment.
- Continuous-improvement mindset, with the ability to standardize patching processes and identify safe automation opportunities.
- Willingness to share knowledge and provide classroom or hands-on training to team members.
To qualify for the role, you must have
- Seven or more years of hands-on experience in Microsoft Exchange Server administration, including recent experience with Exchange Server 2016, 2019 and/or Subscription Edition.
- Demonstrated experience planning and executing Exchange Server On-Premises patching across multiple servers, including SUs, HUs, CUs, Windows updates, prerequisites, reboot coordination and rollback readiness.
- Hands-on experience with Exchange maintenance mode, DAGs, database copy health, transport queues, mail-flow validation, certificates, virtual directories and post-patching verification.
- Proficiency in Exchange Management Shell and Windows PowerShell for administration, remote health checks, validation, reporting and automation.
- Working knowledge of Exchange Online and hybrid Exchange, including recipient administration, connectors, accepted domains, mail flow, message tracing and Exchange Online PowerShell.
- Experience working within ITIL incident, problem and change-management processes, including implementation planning, rollback planning, testing, evidence collection and closure.
- Experience supporting a large, highly available or geographically distributed Exchange environment and coordinating with infrastructure teams, monitoring teams, vendors and Microsoft Support.
- Strong written and verbal English communication skills, sound judgment, cross-cultural awareness and effective stakeholder-management skills.
- Flexibility to support planned maintenance, night shifts, weekends and critical security-patching windows when required.
Technical skills to include:
- Microsoft Exchange Server 2016, 2019 and Subscription Edition administration and troubleshooting.
- Exchange Security Update, Hotfix Update, Cumulative Update and Windows patch deployment.
- Patch-readiness assessment, maintenance mode, pre-patching and post-patching validation, and rollback planning.
- Exchange DAGs, databases, database copy health, transport services, mail-flow components, connectors, certificates, namespaces and virtual directories.
- Exchange Management Shell and Windows PowerShell for administration, automation, reporting and remote server health validation.
- Exchange HealthChecker, Exchange setup and update logs, Windows event logs, SCOM or equivalent monitoring tools.
- Working knowledge of Exchange Online and hybrid Exchange administration, troubleshooting and mail flow.
Ideally, you’ll also have
- Experience with Exchange HealthChecker, SCOM or equivalent monitoring platforms, load balancers and enterprise vulnerability management tools.
- Knowledge of Exchange high availability, backup, disaster recovery, site resilience, email security, archiving and retention.
- Experience improving or automating patching workflows, compliance reporting and post-patching validation.
- Working knowledge of Microsoft 365 security and compliance, Exchange Online Protection and Defender for Office 365.
- Experience managing Exchange certificates, TLS configuration, namespaces and certificate-renewal activities.
- Experience supporting Hybrid Configuration Wizard activities and troubleshooting hybrid mail flow and connectivity.
- Experience coordinating with Microsoft Support during critical patching or service-restoration activities.
What we look for
- A technically strong Exchange On-Premises administrator who can independently own patching activities from assessment and change planning through implementation, validation and evidence-based closure.
- A reliable team member who works safely in a controlled enterprise environment, communicates risks early and collaborates effectively across global teams.
- Flexibility to work in night shifts or outside standard business hours when required for maintenance and critical security updates.
What we offer
As part of this role, you'll work in a highly integrated, globally diverse team with the opportunity and tools to grow, develop and drive your career forward. Here, you can combine global opportunity with flexible working. The EY benefits package goes above and beyond too, focusing on your physical, emotional, financial and social well-being. Your recruiter can talk to you about the benefits available in your country. Here’s a snapshot of what we offer:
- Continuous learning: You’ll develop the mindset and skills to navigate whatever comes next.
- Success as defined by you: We’ll provide the tools and flexibility, so you can make a significant impact, your way.
- Transformative leadership: We’ll give you the insights, coaching and confidence to be the leader the world needs.
- Diverse and inclusive culture: You’ll be accepted for who you are and empowered to use your voice to help others find theirs.
EY | Building a better working world
EY exists to build a better working world, helping to create long-term value for clients, people and society and build trust in the capital markets.
Enabled by data and technology, diverse EY teams in over 150 countries provide trust through assurance and help clients grow, transform and operate.
Working across assurance, consulting, law, strategy, tax and transactions, EY teams ask better questions to find new answers for the complex issues facing our world today.
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