Exchange Server Customer Engineer

JOB Title: CSA GD Exchange Server, Hybrid & Microsoft 365 Customer Engineer Level 400
Job Description
Shifts Must be willing to work in shifts
Travel Must be willing to travel within the country
Exp: 15 years
Role Overview
We are seeking a highly experienced, customer-facing Customer Engineer with expert-level (L400) skills across all versions of Exchange Server, Exchange Hybrid and Microsoft 365.
The candidate will design, deploy, migrate, optimize and troubleshoot complex messaging environments for enterprise and government customers, from legacy Exchange through to Exchange Online, and act as a trusted technical advisor to technical, non-technical and leadership stakeholders.
Key Responsibilities
Lead architecture, design, deployment and optimization of on-premises, hybrid and Exchange Online environments.
Plan and execute upgrades and migrations across Exchange versions (2010, 2013, 2016, 2019 and Exchange Server Subscription Edition) and to Exchange Online.
Configure and operate Exchange Hybrid, including the Hybrid Configuration Wizard, Modern/Classic Hybrid, free/busy, mail flow and coexistence.
Design high availability and disaster recovery using DAGs, load balancing,
namespaces and certificates.
Resolve complex, critical-severity issues with root-cause analysis and clear
remediation plans.
Deliver health checks, risk assessments, workshops and knowledge transfer to
customer teams.
Secure messaging environments and advise on compliance, retention and Microsoft 365 governance.
Automate administration and reporting with PowerShell and Microsoft Graph.
Produce design documents, runbooks, migration plans and executive summaries.
Required Technical Skills (L400)
Exchange Server (all versions)
Deep knowledge of Exchange Server 2010, 2013, 2016, 2019 and Subscription
Edition architecture, roles and services.
Installation, cumulative/security updates, upgrades, side-by-side migrations and decommissioning (including removing the last Exchange server where supported).
Database Availability Groups, transport (Edge/Mailbox), client access, namespace planning and certificate management.
Performance tuning, capacity planning and advanced troubleshooting with logs, message tracking and diagnostic tools.
Exchange Hybrid
Hybrid Configuration Wizard, Modern Hybrid Agent and Classic Hybrid
deployments.
Mailbox moves (remote move migrations), migration batches and endpoints;
cutover, staged and IMAP migrations.
Hybrid mail flow, connectors, centralized mail transport, OAuth, free/busy and organization relationships.
Identity synchronization with Microsoft Entra Connect / Cloud Sync and Active Directory.
Microsoft 365 / Exchange Online
Exchange Online administration: mailboxes, shared/resource mailboxes,
permissions, policies, mail flow rules and connectors.
Email security: Exchange Online Protection, Microsoft Defender for Office 365, SPF, DKIM and DMARC.
Microsoft Purview: retention, litigation hold, eDiscovery, data loss prevention and auditing.
Microsoft Entra ID: Conditional Access, MFA and modern authentication.
Microsoft 365 tenant administration, service health, usage reporting and adoption.
Cross-tenant mailbox migrations and tenant-to-tenant scenarios.
Relevant MIP / VBD Offerings
Exchange Server Workshop
Exchange Server Migration
Exchange Server Activation
Exchange Server Management
Exchange Online Workshop
Exchange Online Pilot
Exchange Online Activation
Exchange Online Optimization
Microsoft 365 Usage Reporting Workshop
Experience And Qualifications
15+ years in customer-facing roles across systems architecture, administration, operations, IT consulting, and on-premises and cloud support for enterprise and/or government customers.
Proven track record delivering large Exchange migrations and hybrid deployments end to end.
BA/BS (or higher) in Information Technology or a related field, or equivalent
experience.
Strong communication, presentation and interpersonal skills.
Optional Skills
Microsoft Graph API and Exchange Online PowerShell automation.
Microsoft Teams and SharePoint Online integration with Exchange.
Well-Architected Framework and Cloud Adoption Framework concepts.
Relevant Certifications
Microsoft 365 Certified: Messaging Administrator Associate, Microsoft 365 Certified: Administrator Expert, or Microsoft 365 Certified: Enterprise Administrator Expert (MS-102) are a plus
A BOUT SONATA SOFTWARE
Sonata Software is an AI-first modernization engineering company that helps enterprises transform legacy systems into intelligent, scalable business platforms. Powered by its Platformation ™ framework and Harmoni.AI platform, Sonata delivers AI-led modernization across cloud, data, AI, Dynamics, test automation, and managed services. Headquartered in Bengaluru, India, Sonata has more than $1.2 billion in revenue and 6,400+ AI engineers supporting global delivery across regions including the US, UK, India, Malaysia, Mexico, Australia, DACH, and the Nordics. With deep partnerships across Microsoft, AWS, Salesforce, and Snowflake, Sonata helps Fortune 500 enterprises accelerate innovation, improve efficiency, and drive sustainable growth.
For more information, please visit www.sonata-software.com

Skills
AWS, Snowflake, Automation Testing, Salesforce, Auditing

Work arrangement
Hybrid