Profile

**+ years of experience in IT: Windows Operating Systems (Desktop and Server: 2003, 2008, 2012), printers, network infrastructure.

8+ years of experience in Microsoft Exchange administration, deployment, support, and configuration (Exchange 2003, 2007, 2010, 2013, 2016 Office 365)

2 years of experience developing software using C Language, Java 2 SE and Visual Studio .net during the Master Degree in Computer Science.

3 years of experience developing software for internal use using Visual Basic .Net 2010 and Microsoft SQL Server 2005

Proficient with Microsoft Lync 2010, 2013, Skype for Business 2015 deployments and administration.

Experienced in creating and maintaining Exchange High Availability solutions such as Database Availability Groups and Client Access Arrays

Experienced in deploying and supporting Office 365 environments

Proficient in utilizing PowerShell to process automation and bulk task completion

Proficient with Exchange Server Profile Analyzer and Exchange Calculator Sheet for Mailbox Sizing

Vast experience providing expert support to Exchange, Lync and Active Directory deployments in production environments

Maintained health and operability of Exchange and Lync through applied updates and patches as needed

Skilled at successful migration and management of Active Directory Objects with several hundred OUs, groups, accounts, permissions, profiles, etc.

Experienced in implementing high availability and secure Outlook Web Access using Load Balancers

Technical Skills

JAVA: J2SE 5.0, NetBeans IDE 5.0 - 6.0, Eclipse IDE.

Other Software development: MS Visual Basic .NET 2010, MS Visual Basic 6, MS Visual InterDev, HTML, ASP, Jscript, VBScript, SAP ABAP, Windows Phone 8 SDK.

Operating Systems: MS Windows 95/98/Me/2000/XP/Vista/7/8, SCO UNIX, Mac OS X, HP-UX, Linux.

Servers: Windows 2000/2003/2008/2012, Installing and Configuring Active Directory Domains (DNS), Internet Information Services (IIS), DHCP, Terminal Services, vulnerability patching,

Exchange Server 2003/2007/2010/2013/Office 365, Lync Server 2010/2013

Databases: MS SQL Server, MS Access, Oracle.

Office Automation Software: MS Office 97/2000/XP/2003/2007/2010, OpenOffice, IBM Lotus.

Citrix Metaframe XP, Citrix NFuse Elite to implement server based computing solutions, desktop and application publishing, load balancing, etc.

VMWare Workstation, MS Virtual PC and Oracle VM VirtualBox to create virtual machines for MS Windows and GNU/Linux to test software on different platforms.

Experience

09/2017-Present Senior Systems Engineer

American Axle & Manufacturing (Southfield, MI)

MPG Users/Email integration to AAM environment: The challenges of this part of the project included the 4,000+ user mailboxes migration from 13 separated Active Directory Domains and Exchange environments. The activities needed included:

Coordinate with DMC Technology Group team for scheduling and migration of user mailboxes using BitTitan tool.

Recreate Conference Room mailboxes following AAM standards for configuration and naming conventions.

Design and implement a script to assign the corresponding Office 365 license to each migrated mailbox.

SMTP Relay infrastructure maintenance: As SMTP Relay (SMTP.aam.net) was configured as an Exchange 2007 connector, due to heavy usage it reached the physical address limit on the Access Control List. As part of the tasks to remediate the following actions were taken:

Export the list of currently authorized IP Addresses and Ranges.

Evaluate the devices IP’s in order to group addresses in ranges to minimize the number of single IPs authorized, like Server Networks, etc.

Design and run a PowerShell script to remove individual IPs and add the optimized ranges.

AAM Legacy migration preparation: In order to minimize the impact of moving 8,800+ mailboxes from exiting Exchange 2007/2013 infrastructure several activities were taken place including:

Coordinate with Network team to obtain an accurate list of current bandwidth from all Remote Sites to our Migration End Point in AAM’s Detroit Headquarters.

Create test migration batches for each Remote site using a sample size value 15 GB to evaluate the time and potential errors that would be encountered during Production migration. During this test, Mexico’s sites were flagged as a potential risk due to limited bandwidth and large number of mailboxes.

Design and run a script in order to obtain a list of mailboxes per site that we could present all IT Site leaders for review and Office 365 license assignment request. Collect feedback and integrate it into the Migration Master File list.

Plan and implement the replacement of Exchange 2007 Public Folder Calendars to Exchange Mailbox Calendar in order to have them available for users after migration to Office 365.

AAM User migration: The main challenge in this phase was to reduce all potential impact to users to a minimal in order to maintain a working as usual environment when possible. The activities include:

Coordinate with Solution Architect in order to have the appropriate users migrated in the planed cutover times. If needed, handle special requests like VIP users or important Shared Mailboxes that need to be moved close to specific users/owner.

Coordinate and assign Office 365 licenses including handling site request for license upgrades due to functional needs.

As no special tools are used during migration, manual error handling is required for some mailbox due to invalid SMTP Alias, job synchronization errors due to bandwidth constrains, conversion of mailboxes to Shared Mailbox or Room Mailbox to avoid unnecessary license assignment.

Multifactor Authentication (MFA) Setup: To minimize potential security risks in AAM environment a conditional access rule has been setup to require an additional security layer (mobile device call/message or application approval/code) when the users are not working from an internal (site) network.

Exchange / O365 Senior Administration support. The activities include:

Coordinate the review and assignment of ServiceNow incident and task tickets on our queue. Provide assistance or advise when required, including the assignment to different resource or team if required.

Work with IT Site Support and Office 365 Level 1 support on elevation requests for both On Premises and migrated users.

Coordination with different AAM team for incidents/tasks that required tasks from multiple teams, like Skype For Business team for Unified Messaging / Voice Mail cases, Security Team for potential email security problems (malware, spoofing), Server team for infrastructure needs like additional disk space requirements.

Work on scheduled Exchange infrastructure changes like Server license upgrades on Exchange and IIS Services.

Represent the Exchange team on escalation events (Priority 1 ticket calls) generated by service outages that could include Exchange Services or Server down, partial outages like mobile phone functionality (ActiveSync issues), etc.

As part of the sale of Grede (castings) division I have assisted by providing comprehensive reports on User Accounts, User Mailboxes, Shared Mailboxes and Distribution Lists currently on AAM environment that would need to be cloned or migrated into the new Grede environment and Office 365 tenant.

We have assisted Grede migration team on setting up a forwarding rule from current AAM mailboxes to their new Grede email address. We have also disabled all email connectivity to their AAM mailbox to ensure they can only use the correct mailbox.

03/2017-08/2018 Senior Systems Engineer

PNM Resources (Albuquerque, NM)

Updated Exchange 2013, resolving virtual directory issues, and moved the Exchange backups. Troubleshot problems with Lync web app.

Coordinated with backup teams to move Exchange backups outside of working hours, etc.

L3 engineering escalation for incident tickets from Service Desk.

Documented solutions for support team.

Provided Knowledge Transfer session to Wintel team members including Exchange/Lync current topology on PNM Resources, Exchange and Lync daily checks and health monitoring, practical sessions showing solutions to common support problems.

Worked with Network team and Microsoft Support engineer to fix a several persistent problems with Lync Web App.

Identified and documented problem and resolution procedure pertaining to .Net Framework security patch.

Implemented operating procedures for more efficient network management.

Proposed and implemented the creation of a new DAG database, for Public Folders to resolve an issue with Exchange 2013.

Changed the page file size to comply with Microsoft’s recommendation (32 GB + 10 MB). Also moved to a new drive to avoid potential space issues in C: drive.

Prepared procedure and implemented changes to set AutoDiscover and EWS virtual directory authentication consistent across servers.

Used an Exchange PowerShell script to generate an htm report of Virtual Directories configuration, including Internal and External URLs, authorization protocols, etc. to confirm the changes were successfully implemented.

Generated new self-signed certificate for Exchange 2010 Production environment.

Updated Exchange 2013 mail flow rule to change the warning message automatically attached to emails received from external senders.

Assisted Network team in testing of external connectivity to Exchange test environment

Implemented security changes in Production NetScaler, and managed deployment of registry changes on Windows 7 machines.

Tools like SharkWire and Fiddler were used to troubleshoot connectivity errors during mobile testing.

05/2014-03/2017 Senior Systems Engineer

General Electric (GE) (Alpharetta, GA)

Provided in person Tier 3 & 4 email support during and after migration to users within the organization.

Migrated users from on-prem Exchange 2010 to Office 365.

Utilized previous experiences to provide technical support in evaluating, designing, implementing, and supporting the Exchange environment and mobile computing environment.

Provided expert level guidance on IT issues relating to Microsoft Windows Server 2008/2012, Active Directory, Active Directory Federation Services and Exchange Online / O365.

Provided advice on maintaining the AD/Messaging infrastructure to support Exchange.

Supported Blackberry Enterprise Server (including BES for Office 365) for the Exchange environment

Monitored system management application alerts then investigate, troubleshoot and resolve

Provided support for multiple VMware instances

Managed, configured, maintained, and administrated mailbox server failover and clustering with Windows and Exchange

Configured and troubleshoot issues with ActiveSync such as client connectivity

Identified and resolved problems affecting the messaging systems performance, efficiency, and availability in a timely manner

Proficient in using PowerShell to manage as well as troubleshoot the migration and the Exchange environment

Functional Experience:

Windows Server and Exchange technical support.

Tools:

Windows Server 2008, 2012. Exchange 2010. Office 365. VMware. BES

08/2013-04/2014 Systems Engineer (MS Lync/MS Exchange)

Hewlett Packard (HP) (Palo Alto, CA)

Primary role was to provide support and engineering for the MS Lync 2013 and Exchange 2010/2013 environments.

Administered Exchange 2010/2013 including mailbox set up, maintenance, and troubleshooting.

Participated in and lead an enterprise scale infrastructure project from inception and ROI analyses through design, execution and transition to data center operations.

Used standard methodologies (risk management, project management, and TCO calculation) to ensure reliability, security, recoverability and cost effectiveness of all designed and delivered solutions.

Planned and managed technical implementation of systems and network integrations.

Managed and established Federated Lync connections with partner organizations to provide presence and IM functionality

Test, troubleshoot and evaluate all hardware, operating systems, and server-level applications associated with the Lync 2013 environment and recommend appropriate server products and services to meet customer needs

Troubleshoot all issues pertaining to Exchange including Outlook issues, OWA, ActiveSync, and Email synchronization.

Administered the Exchange environment by setting up mailboxes and responding to mailbox restoration requests

Collaborated with team members to develop disaster recovery/prevention solutions for Exchange during different implementation phases

Utilized PowerShell scripting for the creation, modification, migration and disabling of all mailboxes

Documented current Active Directory/Exchange infrastructure and organizational policies

Functional Experience:

Windows Server, Exchange, Lync technical support.

Tools:

Windows Server 2008, 2012. Exchange 2010, 2013. Lync 2013

02/2013-08/2013 Microsoft Exchange Consultant

Texas Christian University (Fort Worth, Texas)

Provided in-depth knowledge of Microsoft-based infrastructure design and development, messaging and directory services best-practices.

Architected high level planning, documenting, installing, managing, monitoring, and troubleshooting high-availability for Exchange Server 2007/2010 environments.

Managed the Active Directory within Windows Server 2008 environment.

Administered a wide range of wireless messaging technologies, messaging security, and hygiene.

Developed procedures for routine Exchange server maintenance tasks such as realigning Exchange database copies within DAGs, moving mailboxes, etc.

Provided troubleshooting support for messaging server as well as client issues with Outlook.

Developed migration strategy for Exchange 2007 servers to Exchange 2010

Responsible for monitoring and resolving Service Desk escalated incident and problem tickets assigned to the Exchange team

Documented incidents and resolutions in detail for Exchange and AD to communicate with both the management team as well as the technical project team

Monitored performance levels and capacity of supported applications, and assisted in proper capacity planning and management.

Engaged in Messaging Engineering activities such as developing build documents, testing configurations and patches, and planning deployments

Installed, configured, and maintained Active Directory for the duration of the project.

Developed and enhanced PowerShell scripts to manage migration batches and environment health checks

Functional Experience:

Windows Server and Exchange technical support.

Tools:

Windows Server 2008. Exchange 2007, 2010.

05/2009-02/2013 Exchange Support Engineer

Demar Construction (Cd. Del Carmen, Mexico)

Supported and troubleshoot networks including TCP/IP, DNS, DHCP, switches, routers, firewalls, and wireless

Supported and troubleshoot multi-site Active Directory 2003/2008 environments.

Supported and troubleshoot the Microsoft Exchange 2007 environment.

Maintained users accounts, and monitor services and services to ensure continued functionality

Utilized scripts for health checking databases and servers

Handled administrative tasks associated with user mailboxes and over all Exchange and server maintenance

Troubleshot calendar and mailbox issues for end users

Documented firewall rules, ports, and acceptations for server and traffic traversal

Functional Experience:

Windows Server and Exchange technical support.

Tools:

Windows Server 2003, 2008. Exchange 2007.

06/2006-04/2009 IT Helpdesk

National Advanced Computing Laboratory (Xalapa, Mexico)

Writing and editing technical articles on Evolutionary Computation.

Design of a numerical optimization heuristic based on the behavior of honeybees (Swarm Intelligence) using the C development language.

Programming and testing of evolutionary computation algorithms such as Genetic Algorithms, Evolutionary Strategies and Differential Evolution.

Co-author of a chapter for the book Mecatrónica published by IPN Publisher in 2009.

Functional Experience:

C Language and Java Programming. Technical articles evaluation.

Tools:

NetBeans Java IDE, LATEX Text Editor.

09/2004-06/2006 Technical Support Engineer

Optimiza Consulting (Merida, Mexico)

Coordinated the installation and configuration of Microsoft Windows desktop and server operating systems, configuration of Domain Servers, Web Servers and Microsoft SQL Servers.

Participated in the installation of IT equipment such as printers, routers. Resolved user’s problems as an outsourcing consultant.

Developing an inventory control system for workshop using MS Visual Basic 6 and a MS Access 2003 database. The system allows controlling inputs and outputs of materials and the specifications of each workshop item

Functional Experience:

Windows Desktop and Server technical support. Visual Basic 6 Development.

Tools:

Windows 2000, XP, 2000 Server. Microsoft Visual Basic 6.

07/2003-08/2004 IT and Training Manager

Federal electricity commission (CFE) (Escarcega, Mexico)

Managing IT resources. Installed and managed Microsoft Windows 2000 Server Domain of the Escárcega office.

Prepared and administered the Annual Training Plan for workers.

Instructed the Microsoft Office introduction courses to the Administration department.

Developing a system to monitor courses to take in the current month in CFE's Training System, programmed using ASP and HTML. The system queries the information stored by the Training System in a MS SQL Server 2000 database.

Functional Experience:

SCO Unix and Windows 2000 Server Administration, IT Help Desk.

Tools:

SCO Unix and Windows 2000 Server. Windows 2000 Professional.

08/2001-06/2003 Technical Support Engineer / Developer

Information Technology Consultants Group (Merida, Mexico)

Assisted in the installation of hardware and software products such as Microsoft Windows 2000 Server, Microsoft Exchange and Citrix Metaframe XP.

Coordinated the development of the Grupo Consultores Intranet programmed in ASP and HTML. Developed the Service Control and Reports System in Microsoft Visual Basic 6.

Coordinated testing facilities of Microsoft Windows 2000 Server and Citrix Metaframe XPs in several companies.

Functional Experience:

Windows desktop and Server Support. Citrix Metaframe Installation. Hardware preventive maintenance.

Tools:

Microsoft Windows, Citrix Metaframe. Citrix NFuse Elite. Norton Ghost. Microsoft Visual Basic 6

Education

2006-2009 Master degree in Computer Science

National Advanced Computing Laboratory (Xalapa, Veracrúz, México)

1998-2002 Bachelor degree in Information Systems Engineering

University of Mayab (Mérida, Yucatán, México)

Certifications

Microsoft Certified Professional (MCP 2.0)

Citrix NFuse Administrator

Microsoft Certified Application Specialist: Word 2007, Excel 2007, PowerPoint 2007, Outlook 2007

Microsoft Office 2007 Master

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