Microsoft Teams Junior Technical Lead - EY Global Delivery Services

Microsoft Teams Junior Technical Lead
with secondary Messaging and Exchange Online support

Enterprise Technology provides reliable, secure and resilient technology services and solutions to support our 400,000+ EY people across more than 150 countries. As part of Enterprise Technology, you’ll be at the forefront of enabling innovative technologies including emerging collaboration tools and top-tier technology infrastructure.
Our aim is to create a superior customer experience with clear investment in innovation, alongside operational excellence that delivers efficient, quality services and solutions. You will work with technologists and business experts 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
Assist Global Technical Leads in the technical ownership and global technical management of the Microsoft Teams platform across EY. This is primarily a Teams role, spanning policy governance, feature enablement, application onboarding, federation and external access governance, operational coordination, and rollout validation. The role also includes a smaller, secondary Messaging footprint, supporting initial Exchange Online and Outlook triage, mail flow investigation, and coordination with the Messaging team when required.
It partners closely with Product Managers, engineering, operations, and Microsoft to ensure consistent, compliant, and scalable configurations globally. Key is providing technical know-how whilst understanding the complexities of the business, user experience and wide-reaching technology integrations.
Core responsibilities
1.    Support technical ownership of the Microsoft Teams platform, ensuring consistency across Teams Admin Center (TAC), PowerShell, provisioning systems, and alignment to global baseline configurations.
2.    Assist in designing, enforcing, and managing the lifecycle of global and country-level Teams policies, including meetings, messaging, apps, external access, policy assignments, exception handling, and large-scale policy transitions.
3.    Support Teams provisioning processes and Modern Enablement Tool (MET) alignment; validate that provisioning outcomes match expected policy behavior and troubleshoot inconsistencies between assigned and effective configurations.
4.    Act as a point of contact for developers requesting Teams-related Microsoft Graph API permissions, guiding enterprise application registration activities and coordinating permission scope approvals with Information Security and API owners.
5.    Monitor Teams federation and external access usage, support removal of inactive domains, and maintain visibility into federation governance and recertification processes.
6.    Coordinate with engineering and operations on Teams feature enablement, platform changes, pilot programs, and readiness validation activities; identify and escalate platform inconsistencies to Microsoft and internal engineering teams.
7.    Coordinate and follow up on open Teams incidents, requests, and actions through to resolution; assist with testing, validation, user acceptance testing (UAT), and rollout readiness activities.
8.    Stay informed on Microsoft roadmap features affecting the Teams platform, validate documented behavior against real-world results, and support preparation of technical updates and stakeholder communications including CLT decks, summaries, and briefings.
9.    Provide secondary support for Exchange Online and Outlook operations, including initial incident triage, mailbox and mail flow investigations, feature validation, and operational coordination with the Messaging team when required.
Skills and attributes for success
Technical
•    Strong Microsoft Teams administration (TAC, policies, PowerShell)
•    Solid understanding of Teams architecture: meetings, messaging, apps, federation, external access
•    Microsoft Entra ID fundamentals (app registrations, service principals, group-based assignment)
•    Practical understanding of Microsoft Graph permissions (delegated vs application)
•    Exposure to PowerShell for reporting and bulk management tasks (modifying and running scripts; not necessarily authoring from scratch)
Messaging and Exchange Online Exposure
•    Working knowledge of Exchange Online administration and mailbox lifecycle management
•    Understanding of mail flow fundamentals, transport rules, connectors, and message trace
•    Familiarity with Outlook clients and Exchange Online dependencies
•    Basic awareness of Exchange Online Protection (EOP), anti-spam controls, and retention concepts
•    Identity integration awareness: Active Directory (AD), Microsoft Entra ID, directory sync (Microsoft Entra Connect), and authentication flow basics
•    DNS (Domain Name System) and email authentication fundamentals: MX, SPF (Sender Policy Framework), DKIM (DomainKeys Identified Mail), and DMARC (Domain-based Message Authentication, Reporting and Conformance)
Platform Governance
•    Experience supporting enterprise policy enforcement at scale across collaboration platforms, with awareness of messaging policy and configuration impacts
•    Understanding of external collaboration governance, app access control, and mail flow security controls
•    Ability to evaluate policy and configuration impact across a global Teams environment, with secondary awareness of related Exchange Online dependencies
Operational / Process
•    Experience working within ITSM workflows (ServiceNow preferred) for Teams tickets, with exposure to Exchange/Outlook ticket coordination
•    Exposure to structured change coordination across engineering and operations
•    Familiarity with governance processes (app request intake, federation monitoring, policy lifecycle), with awareness of related messaging governance workflows
•    Experience with structured testing, validation, and operational support processes for Teams incidents and pilot rollouts, with support-level exposure to Exchange Online/Outlook validation
Soft Skills
•    Ability to operate in a support and enablement model under a Global Technical Lead
•    Strong stakeholder coordination across Product Managers, developers, operations, and end users, primarily for Teams and secondarily for Exchange/Outlook issues
•    Ability to guide and challenge developer requests appropriately
•    Structured troubleshooting and analytical mindset
•    Clear and precise technical communication
To qualify for the role, you must have
•    Bachelor or Masters degree in Information Technology, Business
•    Experience with Microsoft cloud services, commercial & sovereign based Office 365 tenants
•    Approximately 3 years of experience in a comparable technical role
Ideally, you’ll also have
•    3–6 years in Microsoft 365 administration, primarily spanning Teams with support-level exposure to Exchange Online/Outlook platforms
•    Hands-on or support-level experience troubleshooting Teams, with practical exposure to Exchange Online/Outlook, including comfort distinguishing client-side vs. service-side issues across Outlook variants
•    Experience supporting enterprise-scale environments with global policy enforcement across Teams, with awareness of Exchange Online dependencies
•    Exposure to app governance or identity-related workflows
•    Experience interacting with Microsoft engineering or product teams is beneficial
What we look for
We’re looking for a passionate, committed and curious individual with a deep interest in MS cloud-based technologies and services. You should be prepared to work in a fast-paced environment to tight timelines and rapid change as EY adapts to various regulations and demand from the business whilst maintaining integration across the differing platforms maintained by EY.
What working at EY offers
We offer a competitive remuneration package where you’ll be rewarded for your individual and team performance. Our comprehensive Total Rewards package includes support for flexible working and career development, and with FlexEY you can select benefits that suit your needs, covering holidays, health and well-being, insurance, savings and a wide range of discounts, offers and promotions. Plus, we offer:
•    Support, coaching and feedback from some of the most engaging colleagues around
•    Opportunities to develop new skills and progress your career
•    The freedom and flexibility to handle your role in a way that’s right for you
EY is committed to being an inclusive employer and we are happy to consider flexible working arrangements. We strive to achieve the right balance for our people, enabling us to deliver excellent client service whilst allowing you to build your career without sacrificing your personal priorities. While our client-facing professionals can be required to travel regularly, and at times be based at client sites, our flexible working arrangements can help you to achieve a lifestyle balance.
About EY
As a global leader in assurance, tax, transaction and advisory services, we’re using the finance products, expertise and systems we’ve developed to build a better working world. That starts with a culture that believes in giving you the training, opportunities and creative freedom to make things better. Whenever you join, however long you stay, the exceptional EY experience lasts a lifetime.

If you can confidently demonstrate that you meet the criteria above, please contact us as soon as possible.
Build your legacy with us.

Apply now.