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Denvil
dallen77@swbell.net
832-729-6426
Austin, TX 78799
Sr. Windows Eng/Admin/VMware
9 years experience W2
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Summary

Experienced Windows Specialist with a demonstrated history of working in the computer software industry. Skilled in Microsoft Windows 2003, 2008, 2012 and 2016, AD/DNS Directory management, Server Architecture, Domain Name System (DNS), Opsware, Storage Area Network (SAN), ServiceNow and BMC Remedy. Strong information technology professional with Windows Server System Engineer and Administrator / Sr. Windows Admin / Sans Admin / Software Development Lifecycle (SDLC)/ Service Level Agreement (SLA) / Project Management Methodology Infrastructure / Process Flow / Mentoring

Experience
Sr. Windows System Eng.
Oct 2020 - Apr 2021
Austin, TX
Manage both physical and virtual Windows OS for servers both on premise and in Azure. Administration of Azure cloud, on premise Active Directory AD/DNS Support, Configuration and management, Azure AD Connect, DNS, DHCP, IIS, Group Policy object editing/updating and other Microsoft Windows services. Migration of Windows 2008/12 to 2019. Manage VMware vCenter server and ESXi hosts. Vcenter administration. Administer storage systems including NetApp and Synology platforms. Administer and maintain server backup and archiving systems for data backup and recovery. Perform system monitoring, updating and system tuning. Identity security vulnerabilities and perform remediation. Establishes and maintains server documentation. Assist in network troubleshooting. VMware PowerCLI scripting and PowerShell administration scripting. Completely working remote from home.
DHCP DNS MS Active Directory MS Azure PowerShell Scripting vCenter VMWare Configuration Management IIS
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Sr. Windows System Eng
Sep 2019 - Nov 2020
Austin, TX
Project service delivery. Worked on projects with various customers to deliver servers and access to Dell services delivery products. Vmware access to create vm clients in a Modern Datacenter requirement. Dell IT Engineering for a Wintel Systems Engineering Sr Advisor who does work with application teams to investigate, rationalize, design, plan & implement new infrastructure to allow applications migration from End-of-Life Hardware to supported platforms. Day to Day: Worked with application teams, Infrastructure & application project managers to handle large scale migration of complex applications, including server hardware, Operating System, Databases and SAN or NAS storage. PowerShell scripting Windows 2019, 2016, 2012 & Windows 2008. Experience with migration of existing application from depreciated environments to the latest supported standards Experience with capacity management and performance managements tools and processes. Exceptional written and verbal communications skills, with proven experience interacting with a range of personalities and styles, to establish effective relationships at all levels of the organization Able to quickly learn systems, processes, and procedures, grasp technical concepts, and adapt easily to change Passion for learning and demonstrable intellectual curiosity Able to manage competing demands, multiple priorities, while remaining adaptable and flexible Work Environment.
NAS PowerShell SAN Scripting VMWare Systems Engineering Data Center
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Sr. Windows System Eng.
Nov 2018 - Jun 2019
  • Main responsibilities Active Directory AD/DNS Support, Configuration and management.
  • Conducts system analysis, configuration management.
  • Manage Azure environment and Develops improvements for issues related to system software performance, availability and reliability.
  • Performs incident resolution, problem determination and root cause analysis in accordance with Service Level Agreements Designs, develops, recommends.
  • Implements new or revised system software, utilities and automated processes as necessary.
  • Provides in-depth diagnosis for operating systems software/hardware failures and develops solutions.
  • Evaluate emerging technologies to ensure technical solutions are compatible with the Company's business needs and strategic objectives Provide technical expertise.
  • Guidance and strategic recommendations to Windows and ESXi Servers Detect security issues.
  • Create customer tickets and manage problems until closure.
  • Perform system maintenance and maintain current documentation.
  • Any other duties commensurate with the level of responsibility of this post and as advised by Management.
DNS MS Active Directory MS Azure
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Sr. Windows System Eng.
Jul 2018 - Nov 2018
Design, Architect, Engineer and implement a new 2012 Forest consolidating 15 Domains to 1 Domains.
  • Main responsibilities Active Directory AD/DNS Support, Configuration and management.
  • Perform daily system monitoring, verifying the integrity & availability of all hardware, virtualized server resources, reviewing system and application logs, and completion of scheduled tasks (backups, preventive maintenance, etc.)
  • Experience maintaining a VMWare virtualized environment with hyper-converged integrated systems.
  • Installing, configuring, maintaining operating systems, application software, and system management tools.
  • Provides analytical, technical, and administrative support in the planning, design, and installation of new and existing server, storage and data systems in a virtualized environment.
  • Extensive use of PowerShell to list and find Domain info and data for each domain to prepare for domain migration.
  • Knowledge of Active Directory (including users & group Security permissions), TCP/IP Networking, DNS, DHCP & Group Policy Objects.
  • Assist with documentation of best practices.
  • Ensuring the highest levels of systems and infrastructure availability and security in a Windows environment.
  • Monitor and test application performance for potential bottlenecks, identify possible solutions, and implement those fixes.
  • Maintain security, backup, and business continuity strategies.
  • Provide escalation support for the technology team.
DHCP DNS MS Active Directory PowerShell TCP/IP VMWare Group Policy
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Sr. Windows System Eng. IV
Feb 2017 - Jul 2018
Design, Architect, Engineer and implement a new 2012 Forest/Domain/AD/DNS Environment. Install, configure, and maintain all servers. Managed old Domain AD/DNS issues incidents and escalations within IOPS. Perform Sr. Windows System Engineer level IV functions and duties. Supported DCO move of Austin Datacenter.
  • Main responsibilities AD/DNS Support, Configuration and management.
  • Manage servers and user acct OU’s and object containers in the 3 Active Directory Domains forest.
  • Maintain and manage the DNS infrastructure
  • Provided VMware Admin management and client creation, deployed, configuration and administration of host systems and virtual machines.
  • Design, planning, implementation and administration of Microsoft Windows 2012/R2 domain Forest server systems, both virtual and physical.
  • Perform IIS admin duties and responsibilities.
  • Research/resolve hardware and software problems with vendors.
  • Monitored system environment with Nagios, Splunk various other monitoring tools.
  • Diagnose and troubleshoot system and application issues including server hardware, virtual servers, network connectivity, and system logs / alerts, as appropriate.
  • Provide high-level user (2nd and 3rd level) support via a variety of methods and provide technical expertise to users by verbal and /or written means.
  • Provide on-call support for server and network systems as necessary.
DNS MS Active Directory Nagios Splunk VMWare
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Sr. Windows System Eng./Admin/VMware
Feb 2016 - Feb 2017
Design, Architect, Engineer and implement a new 2012 Forest/Domain/AD/DNS Environment. Install, configure, and maintain all servers. Managed old Domain AD/DNS issues incidents and escalations within IOPS. Perform Sr. Windows System Admin functions and duties. Linux admin duties as well.
  • Main responsibilities AD/DNS Support, Configuration, Create a new 2012 Forest/Domain.
  • Manage servers and user acct OU’s and object containers in the Active Directory.
  • Maintain and manage the DNS infrastructure
  • Provided VMware Admin management and client creation, deployed, configuration and administration of host systems and virtual machines.
  • Design, planning, implementation and administration of Microsoft Windows 2012/R2 server systems, both virtual and physical
  • I Installed ESX VMware 6.0, configure, and maintain server and EMC NS-120 Celera/Clariion datastore storage systems.
  • Installing Microsoft 2008/2012 R2 server configure, and maintain servers and storage.
  • Perform IIS admin duties and responsibilities.
  • Research/resolve hardware and software problems with vendors.
  • Diagnose and troubleshoot system and application issues including server hardware, virtual servers, network connectivity, and system logs / alerts, as appropriate.
  • Provide high-level user (2nd and 3rd level) support via a variety of methods and provide technical expertise to users by verbal and /or written means.
  • Provide on-call support for server and network systems as necessary
DNS EMC IIS Linux MS Active Directory System Administration VMWare Windows
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System Engineer
Dec 2015 - Dec 2016
Systems Engineering
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Sr Windows/VMware Eng/Admin Lvl3
Mar 2015 - Feb 2016
Austin, TX
Install, configure, and maintain server. Managed AD/DNS issues incidents and escalations within IOPS. Perform Sr. Windows System Admin functions and duties.
  • Main responsibilities AD/DNS Support, Configuration, Domain/Forest collapse (27 domain, 7 Forests)
  • Manage servers and user acct OU’s and object containers in the Active Directory.
  • Provided VMware Admin management and client creation, deployed, configuration and administration of host systems and virtual machines.
  • Design, planning, implementation and administration of Microsoft Windows 2012/R2 server systems, both virtual and physical
  • I Installed ESX VMware 5.0/5.5, configure, and maintain server and datastore storage systems.
  • I Installed 0Microsoft 2008/2012 R2 server configure, and maintain servers and storage.
  • Perform IIS admin duties and responsibilities.
  • Research/resolve hardware and software problems with vendors.
  • Diagnose and troubleshoot system and application issues including server hardware, virtual servers, network connectivity, and system logs / alerts, as appropriate.
  • Provide high-level user (2nd and 3rd level) support via a variety of methods and provide technical expertise to users by verbal and /or written means.
  • Provide on-call support for server and network systems as necessary
DNS IIS MS Active Directory VMWare Windows
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Sr. Windows Admin/VMware/Sans Admin
Mar 2014 - Jan 2015
Austin, TX
Install, configure, and maintain server and storage systems. Managed VMware issues incidents and escalations within VMware Vcenter. Sr. Windows Admin functions and duties.
  • Provided VMware Admin management and client creation.
  • Install, configure, and maintain server and storage systems.
  • Perform IIS admin duties and responsibilities.
  • Research/resolve hardware and software problems with vendors.
  • Diagnose and troubleshoot system and application issues including server hardware, storage hardware, virtual servers, network connectivity, and system logs / alerts, as appropriate.
  • Provide high-level user (2nd and 3rd level) support via a variety of methods and provide technical expertise to users by verbal and /or written means.
  • Provide on-call support for server and network systems as necessary.
  • Provide IT Help Desk Support, Troubleshooting and Maintenance and Training.
  • Perform other duties and responsibilities as assigned.
  • Assisted App Developers with software upgrades and application updates.
Database Upgrades IIS vCenter VMWare Windows
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Sr. Windows Admin/VMware and Sans Admin
Jul 2013 - Mar 2014
Austin, TX
Install, configure, and maintain server and storage systems. Managed VMware issues incidents and escalations within VMware Vcenter. 24x7 Support Data Center.
  • Provided VMware Admin management and client creation.
  • Install, configure, and maintain server and storage systems.
  • Decom old/outdated and unused servers per procedures.
  • Research/resolve hardware and software problems with vendors.
  • Plan and coordinate systems growth capacity.
  • Ability to lead / drive Infrastructure projects with regular reporting as required.
  • Diagnose and troubleshoot system and application issues including server hardware, storage hardware, virtual servers, network connectivity, and system logs / alerts, as appropriate.
  • Provide high-level user (2nd and 3rd level) support via a variety of methods and provide technical expertise to users by verbal and /or written means.
  • Manage VM Templates, Patches and system updates.
  • Provide on-call support for server and network systems as necessary.
  • Provide IT Help Desk Support, Troubleshooting and Maintenance and Training.
  • Perform other duties and responsibilities as assigned.
Data Center vCenter VMWare Windows
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Senior Windows System Administrator
Aug 2012 - Jul 2013
Austin, TX
Direct level III call for customer support engagements. Managed All OS software/hardware server issues incidents and escalations. 24x7 Support Data Center. HP server maintenance and contract work.
  • Provided VMware Admin management and client creation. Install, Deploying, configure W2K8 OS on both VM environment.
  • Provided OS incident issue resolution support via Service Desk Ticket system. Work multiple ticket issues from re-install apps and systems app via Bigfix and SCCM/SCOM direct setup install executables plus multiple third party apps. Manage servers and user acct OU’s and object containers in the AD.
  • Assign to Hospital surgical servers and application software support. Over 400 servers.
Data Center System Administration VMWare Windows
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Edit Skills
Non-cloudteam Skill
Education
Computer Information Systems
University of Dorchester – Online, 2001 - 2003
Certifications
microsoft
Skills
VMWare
2021
8
DNS
2021
5
MS Active Directory
2021
5
Windows
2017
5
IIS
2021
4
Data Center
2020
3
vCenter
2021
3
MS Azure
2021
2
PowerShell
2021
2
Scripting
2021
2
System Administration
2017
2
Systems Engineering
2020
2
Configuration Management
2021
1
Database Upgrades
2015
1
DHCP
2021
1
EMC
2017
1
Linux
2017
1
Nagios
2018
1
NAS
2020
1
SAN
2020
1
Splunk
2018
1
BMC Remedy
0
1
Cisco
0
1
CompTIA Security+
0
1
Disaster Recovery
0
1
ERP
0
1
Group Policy
2018
1
HP
0
1
HP OpenView
0
1
HP-UX
0
1
Incident Management
0
1
ITIL
0
1
Microsoft SMS Server
0
1
MS SCOM
0
1
Problem Solving
0
1
Server Admin
0
1
System Analysis
0
1
TCP/IP
2018
1
UNIX
0
1
Veritas
0
1
Veritas NetBackup
0
1
Virtualization
0
1
Windows 2003
0
1
Windows Server
0
1