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Carl Barnes - Exchange Engineer

Atlanta, GA
May 13, 2020

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Carl Barnes, Jr. Morgan State University

Senior Microsoft Messaging Engineer Bachelor of Science Degree

Phone: (614) 697 - 0379

Email: Baltimore, Maryland

Professional Summary

10 Years Exchange/Office 365 15 Years I.T.

Ability to work under pressure and contribute ideas that promote innovation.

Strong experience with Active Directory, including advanced features such as certificate services, federation services, Active Directory domain and forest restructuring, consolidation and migrations.

Experienced senior engineer in the Microsoft Lync and Skype for Business technology space.

Achieved solutions for complex software deployments.

Engineer with experience in architecting, implementing and supporting Unified Messaging and Lync/Skype conferencing solutions in a Microsoft Enterprise environment.

Maintained monitoring and alerts for thousands of devices.

Troubleshoot user issues from Exchange/Outlook profiles to folder and share permissions.

Build and administer VMware and Hyper-V servers and workstations.

Create and augment Powershell, Batch and VBS Scripts for efficiency and streamline-ability regardless of manufacturer and vendor implementation.

Experience with Exchange and Identity Management

Working in an Exchange hybrid environment with Office 365 or Exchange or other email platforms

Design build and implementation of conferencing solutions that include On-Premises (Lync 2010/2013) Skype for Business 2015 and Office 365 Multi-Tenant (Skype for Business online or Teams).

Strong understanding of various email protocols and security

Performing cross-forest mail migrations, exports/imports and using migration tools to consolidate mail systems after mergers/acquisitions

Advanced knowledge of Microsoft networking technologies such as DNS, WINS, DHCP and DFS

Large enterprise and data center experience (250+ servers/virtual machines)

Perspective and experience with large enterprise infrastructure and technology inter-dependencies

Knowledge of Microsoft Windows Server 2012R2 and 2016.

Interact with the team and internal customers to ensure continuity and customer satisfaction of services

Actively participate in developing operational models, processes, and procedures with technical documentation.

Responsible for deliverables of technical projects relating to messaging systems, collaborating with enterprise solutions design to deliver build diagrams and run documentation for operations.

Work with service owners and business leaders to recommend solutions to address new business requirements

Success at migrating an enterprise environment to the latest version of Skype for Business to include cloud migrations such as Office 365 services

Experience with routing and switching protocols, TCP/IP, QoS, VLANs, DNS and WAN protocols related to voice technologies

Technical Skills

Microsoft Messaging On-Prem: Exchange 2010/2013/2016 and Windows Server 2012,2016

Microsoft Messaging Online: Office 365, Exchange Online

Microsoft Unified Communications/VOIP: Lync 2010/2013 and Skype-for-Business 2015, Skype for Business Online, Teams

Database: Microsoft SQL Server 2010/2012/2014/2016

Scripting: PowerShell

Virtualization: Microsoft Hyper-V, VMware, VMware ESXi Hypervisor, VMware vCenter Server Virtual Machine, vSphere, Oracle VirtualBox

Migration Tools: BitTitan, Quest

MDM Tools: Microsoft Intune, Citrix, Workspace One (AirWatch), MobileIron, ActiveSync

Monitoring Tools: SolarWinds, PRTG Network Monitor

Identity Tools: Forefront Identity Management 2008, MIM 2012, MIM 3.0

Services: Active Directory, Azure AD Connect (DirSync), Active Directory Domain Services (ADDS), Active Directory Federation Services (ADFS), Active Directory Domains and Trusts, Active Directory Site and Services, Certificate Authority, Group Policy Management, Print Management, Domain Name Service (DNS), Internet Information Services (IIS) Manager

Exchange Tools: Exchange Admin Center (EAC), Exchange Calculator, Exchange Best Practices Analyzer, Exchange Online Protection (EOP), Powershell for Exchange Management Shell, Exchange Environment Report, Exchange Server Deployment Assistant

Office365 Tools: Office 365 Admin Center and Office 365 Migration Wizard in Exchange, Powershell for Exchange Online, Azure AD Connect for Multi-Factor Authentication, Powershell for Azure

Email Client: Outlook 2013/2016, Outlook Web Access (OWA)/Outlook On the Web (OOTW) for 2016

Desktop O.S.: Windows 7, Windows 8, Windows 10 Professional

Desktop Software: Microsoft Office, Microsoft Visio, Microsoft Project, Citrix

Methods: High Availability, Data Loss Prevention, eDiscovery, Federated Services, Coexistence, Hybrid Environments, DNS Round Robin, Multi-Factor Authentication, Database Availability Group (DAG), Pool Pairing,

Migrations: Phased Migration, Staged Migration, Hybrid Migration, Cutover Migration, Cross-Forest Migration, Tenant Migration

Protocols: Network Protocols: Remote Procedure Call Protocol (RPC), Network Address Translation (NAT), Microsoft Active Directory Protocol (MADP), Telnet, Communications Protocols (File Transfer Protocol (FTP), Secure Shell (SSH), Simple Mail Transfer Protocol (SMTP), Domain Name System (DNS), Trivial File Transfer Protocol (TFTP), Hyper Text Transfer Protocol (HTTP), Post Office Protocol 3 (POP3), Dynamic Host Configuration Protocol (DHCP), Simple Network Management Protocol (SNMP), Lightweight Directory Access Protocol (LDAP), Transport Layer Security (TLS), Real-Time Transport Protocol. (RTP), Real-Time Control Transfer Protocol (RTCP), Hyper Text Transfer Protocol Secure (HTTPS), Internet Message Access Protocol. (IMAP4), Session Initiation Protocol (SIP)

Software and Tools: Microsoft System Center Operation Manager (SCOM), Microsoft System Center Configuration Manager (SCCM) Perfmon for Windows, CISCO Packet Tracer, Fiddler, Wireshark, Snooper,,,

Professional Experience

Jan. 2019 to Present

Messaging/Office 365 Engineer

State of Ohio - Department of Administrative Services

Project: Migration from Exchange 2010 to Exchange 2016/Office 365 Hybrid.

Messaging Engineer role for State of Ohio’s Department of Administrative Services & all state government agencies

Provided messaging support for all 65 state agencies in a 65,000-user Office 365 mailbox environment

Created multiple PowerShell scripts to assist with various migration projects & troubleshooting and analysis.

Cloning of Domain Controllers in Windows Server 2016

Ran updates on the source and destination servers and ensures Windows Server patches, Exchange service packs, cumulative updates were current.

Once Exchange 2016 is installed, activated the server from Exchange Admin Center (EAC) to add the hybrid license key to servers.

Added the Exchange 2016 servers to the production environment & configuring the entire mailbox server role.

Synchronized the Exchange 2016 servers with the new Office 365 environment.

Used AD Connect tool to configure custom installation to test and ensure Multi-Factor Authorization to the current Active Directory domain.

Responsible for coordinating with various support teams on the purchase of the correct subscription service for the new Office 365 tenant.

Moved all mailboxes and public folders to Office 365 cloud and provisioning of mailbox databases on the new tenant.

Configured AD Connect to establish Federation with multiple domains.

Ran Powershell to move configure send and receive connectors to ensure fluid mail flow from internal & external domains to Office 365.

Setup and configured mailbox databases on the new server and migrated any remaining mailbox data.

Verified user functionality and access to services via Outlook and Outlook Web Access

Setup new Office 365 DLP policies, litigation in-place settings, retention policies, retention tags & several transport rules

Ran several PowerShell commands to decommission all Exchange 2010 servers.

Uninstalled the Legacy Exchange 2010 Servers and ensured that no remains of Exchange servers remained on current AD domain environment.

Nov 2017 – Jan 2019

Messaging Engineer

NTT Data Services, Plano TX

Project: Migration from Exchange 2010 on-prem to Exchange 2016 on-prem then o365

Responsible for upgrading the entire Exchange farm from Exchange 20106 on-prem to Office 365.

Ran Microsoft Best Practice Analyzer, PowerShell scripts and Exchange Calculator to design the new Exchange environment.

Troubleshooting of issues with database copies and lag in replication; backups of Active Directory and use of Active Directory to prepare user data for migration.

Readied current Exchange 2010 email environment for migration to Exchange 2016 on premises with updates and patches.

Ran Exchange Server Mailbox Calculator to create reports on the current 2010 environment & gather data on site resilience, database copy configuration, current Exchange data configuration and other important factors

Created batches for user mailbox accounts and moved them via PowerShell scripting to the new Exchange 2016 environment

Migrated remaining user mailboxes and other Exchange system objects to Exchange 2016 environment.

Tested new environment, mail flow, policies and tested functionality.

Monitored mailbox moves using Powershell and addressed mail flow troubleshooting

Modified & copied retention policies, journaling rules, and archiving policies for users and databases to new Exchange 2016 environment

Create DAG configuration for High Availability and fault tolerance of mailbox databases in a cross-site configuration.

Used Powershell scripts and other assorted tools to troubleshoot database configuration, replication database health.

Prepare the hybrid environment installing ADConnect and HCW.

Register new domain in Azure and sync Accounts.

Migrate mailboxes to exchange online.

Migrate Skype for business to Teams.

Ran Powershell commands and scripts to decommissioned remaining Exchange 2010 servers.

Sept 2016 – Nov 2017

Messaging Engineer / Exchange 2016/Office 365

Dick's Sporting Goods - Pittsburgh, PA

Project: Construction of new Exchange 2016 server farm in coexistence with the existing Exchange 2010 server farms.

Used Exchange Calculator for capacity planning, assorted Powershell scripts, Microsoft Exchange Server Deployment Assistant and Microsoft’s Best Practices Analyzer to plan the coexistence and determine network and migration needs. Used PowerShell to configure Windows Server 2016 prerequisites

Checked readiness and raised forest function level from Windows 2012 to Windows 2016

Responsible for the installation of Windows Servers, configuration, and introduction of servers into the network.

Implemented new Microsoft Windows 2016 servers.

Set up virtual servers using Microsoft Hyper-V for deployment and migration testing.

Updated Exchange 2010 service packs to establish coexistence with Exchange 2016.

Ensured health and functionality of the existing environment prior to beginning any work by using Powershell to run reports on mailbox replication, DAGs, data corruption, produced Exchange server backups.

Validate new Exchange 2016 mail flow through Cisco IronPort

Prepared Active Directory and installed Remote Server Administrative Tools in order to utilize using Windows PowerShell.

Used PowerShell to configure Windows Server 2016 prerequisites.

Checked readiness and raised forest function level from Windows 2010 to Windows 2016

Ran a cross check in Exchange Management Shell and Exchange Admin Center and verified the coexistence of Exchange 2010 alongside Exchange 2016.

Setup of Send and Receive Connectors, In-Place Litigation Hold policies, Retention Policies, mailbox moves, mailbox databases status, Message Tracking and troubleshooting.

Responsible for TCP/IP, DNS, DHCP and Network Troubleshooting.

Verified user functionality and access to services via Outlook, OWA, and Outlook Anywhere and assisted in collaboration with Help Desk Team in resolving any issues.

March 2015 – Sept 2016

Microsoft Exchange Administrator

Coventry Health Care / Sunrise, Florida

Project: Migration from Exchange 2010 on-prem to Exchange 2013 on-prem and managed the Exchange 2013 farms and provided system support.

Worked hands-on with other equipment and technologies such as VMWare and WM Workstation.

Implemented capacity planning utilizing the Exchange best practices and Exchange Calculator.

Utilized VMWare for server virtualization.

Updated Exchange 2010 to Service Pack 3 to establish coexistence with Exchange 2013.

Checked health of DAG and replication of databases

Checked for mailbox corruption on source servers and made repairs before migration.

Readied current Exchange email environment for migration to Exchange 2013 on premises with updates and patches.

Created DAGs for the new Exchange environment.

Configured Retention Tags and Policies in Exchange.

Monitored Exchange email queues.

Created PowerShell scripts designed to automate day-to-day tasks for user mailbox and resource mailbox reports

Participated in the verification of DNS and Exchange 2010 systems and made changes to infrastructure to better suit migration effort.

Implemented identity and access management system with a parallel deployment and migration to a highly available platform.

Responsible for creating batches of users, via PowerShell, to move Exchange 20xx mailboxes to Exchange 20xx mailboxes.

Migrated test accounts to Exchange and verified functionality

Created batches for user mailbox accounts and moved them via PowerShell scripting to the new Exchange environment

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