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Windows systems administrator.

Claymont, DE, 19703
October 26, 2019

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Darrell A. Leahy

*** ****** ***. 302-***-****

Claymont, DE 19703

Qualifications Summary

Results Oriented IT Professional with 27 plus years of IT Administrator experience in private multi-state

Organizations, including over 20 years of progressive leadership streamlining operations of the IT department

in alignment with the business objectives of the organization. Strengths include planning, coordinating, directing

and designing IT-related activities of the organization, as well as provide administrative direction and support for

daily operational activities of the IT department. Proven ability to lead projects to achieve business objectives,

while maintaining excellent customer relationships, and to develop solutions to facilitate revenue and profit


Areas of Expertise

Domain design and configure Troubleshooting Technical support

Disaster Recovery Firewall Design and Configure Customer Excellence

Database Hardware and Software People Development

Professional Experience:

8/2018 – Duffield Associates Wilmington, DE

Present IT Network Administrator


Autodesk Deployment / Troubleshooting

Deployment of equipment

Ruckus Wireless Networks

Imaging and deployment of computers

Migrate Servers from Hyper-V to VSphere 6.5

3CX phone systems

Training Best Practices migrating from AutoCAD Civil 3D 2015 to 2019

Deployment of Ninja RMM company wide.

3/2017 – Terumo Cardiovascular Elkton, MD

Aug 2018 Applications & Information Systems Specialist


Camstar MES Modeling

21 CFR Part 11


Kepware 6.2 - Integrating machine data into SQL 2014 Databases

Camstar Training – Exploring Camstar Manufacturing & Camstar Manufacturing Licensed Features.

9/2016 – CarGroup Holdings - Contract Media, PA

2/2017 Senior Information Systems Application Specialist & Business Analyst


Wyse Terminals

Process Documentation

Microsoft Lync


8/1996 – Seiberlich Trane New Castle, DE

8/2016 MIS Coordinator


Independent Worker

Teamwork – Can lead or be part of a team to accomplish objectives

Self-Starter Supervision not needed.

Recognize needs and develop systems and solutions to take care of them based on company philosophy

43 Hardware and Software certifications.


Managed UNIX accounting system and database for five years, migrated it to Microsoft Dynamics SQL Server (3rd Quarter 2000.)

Implemented Server Migrations from Novell 3.12 to Windows NT4 to Windows 2000 through Windows 2012.

Intranet Server design and deployment.

Coordinate third party implementations of systems (testing, designing, installing configuration, and training.)

SAN Purchase, install and configurations (Dell and Nimble)

Manage back-up processes, equipment verification and resets

Backups both data and bare metal restores

Develop Disaster recovery Plan and Test

Microsoft Dynamics GP

Accounting system support – Dynamics 7.0 through 2013 sp3

Reports directly to CFO

Designs, programs and audits security within Dynamics database and all connected components.

Created and maintained all banking users and security (audited independently yearly.)

Build queries and stored procedures to be used with SSRS and Excel extracts.

Dynamics – Advanced HR, user and group security

Key2Act / Wennsoft Customizations support.

Installed interfaces for ACH, FED Reserve and 401K systems extracting them directly from Microsoft Dynamics.


Database Design, Build and Implementation (Access and SQL)

Microsoft SQL 2000 – 2012

OBDC, connectors, maintenance plans, and repairing.

Moving Data in fields as needed as versions change.

Building maintaining databases in Access 97 – 2013.

Troubleshooting determining programming, data or procedural errors.

Customization troubleshooting and repair.

Evaluating, Testing, Implementing new components and procedures.

SSRS reports server setup configure and secure

Support and troubleshoot databases and interfaces.

MS SQL Server Management Studio


Crystal reports troubleshoot, repair and upgrade.

SSRS reports build, troubleshoot, repair, and upgrade.

Query and database modification within the report and server.

AnyView Reports versions 9 through 12 for Dynamics - build maintain and upgrade

Microsoft Report writer (FRX through report writer.)

Dexterity Reports – Dynamics GP

Smartlist Reports – Dynamics GP


Migrated off of Trane’s Domain to our own (seamlessly users did not even know.)

Design and configure AD, ADFS, LDAP, DNS, DHCP, TCPIP, VPN, secure tunneling, LAN and WAN

Setup and maintain GPOs and login scripts.

Exchange Admin 2007 and migrated to Office 365

Support 100+ Users, setup and ongoing support.

Support 19 Servers both virtual (VMware 4.0 – 5.5) and Physical.

Purchase setup and secure hardware for the network including servers and workstations

Oversee software licensing compliance for desktop and servers.

Support networking between 3 locations including firewalls and monitoring.

Installs, configures and maintains company computers, networks, file servers, network cabling, and other related equipment, devices and systems; adds or upgrades and configures disk drives, printers and related equipment.


Managed WAN / LAN, Database, Communication, and Building Security.

Firewalls design, configuration and implementation (both physical and logical.)

Cisco ASA and switch programming and maintenance (ADSM)

Meraki programming and maintenance.

Implement and support for network security, including maintaining firewalls, configuring VPN, managing host security, file permissions, file system integrity, and adding and deleting users.

Customer Support

Implemented Workstation migrations from Dos / Windows 3.11 through Windows 10 Pro.

Directly responsible for troubleshooting hardware and software on all levels including customer interfaces.

Installed interfaces for ACH, FED Reserve and 401K systems extracting them directly from Microsoft Dynamics.

Desktop and server hardware support (both in-house and customer)

Track and record all hardware and software (asset tracking and software licensing).

Audit and maintain computer images for field associate systems.

Assists in research and procurement of computer accessories and supplies.

Assist all associates with computer related issues.

Assists associates of other departments as a computer resource.

Provides computer, equipment, and security orientation to new and existing associates.

Provide support for Dynamics security, maintenance, testing and functionality

Develop and maintain SOP’s for IT functions


Evaluate company Equipment needs and recommend, purchase, configure, implement and train.

Contract negotiation for PRI phone line, copiers and postage machines, ect.

Design network installation, integration, and maintenance.

Install and configure all supported hardware

Phone System

Installation and upgrades for Avaya Phone systems (Hybrid Digital and IP system for 3 locations)

Support Avaya Hybrid Phone system with both digital and analog components

Install, Configure, Troubleshoot, and coordinate supported communications.


Investigates user problems and identifies their source; determines possible solutions; tests and implements solutions.

Troubleshoot all LAN, Workstation, and Server problems.

Project Duties

Implement all hardware testing and upgrades

Implement all software testing and upgrades


Companywide training through in house training, on premise and instructor led training.

Assist in identifying training needs and coordinate appropriate training sessions.


Maintains confidentiality with regard to the information being processed, stored or accessed by the end-users on the network.

Perform responsibilities in accordance with all company standards, policies and procedures.

10/95 - Brian’s Data Security New Castle, DE

7/96 Operations Manager

Managed disaster recovery operations

Novell Network Administrator.

Managed Apple Network.

Customer and Company technical support for computer systems, both software and hardware.

Streamlined operations increased billing, increase profitability.

Business to business Sales.

Education: University of Texas Arlington

Computer Science and Engineering

1982 – 1984

Hyles-Anderson College

Crown Point, Indiana

1984 - 1985

Norris Bible Baptist Seminary

Pastoral Theology

Graduated 1988 - Theology

Additional Training

Microsoft Word – Beginner

Microsoft Word – Intermediate

Microsoft Word – Advanced

Microsoft Excel – Beginner

Microsoft Excel – Intermediate

Microsoft Excel- Advanced

Microsoft PowerPoint – Beginner

Microsoft PowerPoint – Intermediate

Microsoft PowerPoint – Advanced

Microsoft Access – Part 1

Microsoft Access – Part 2

Microsoft Project – Beginner

Microsoft Visio - Beginner

Mastering Microsoft SQL Server 2005 Reporting Services

Microsoft Exchange Server Administration

Microsoft Exchange Server Administration – Advanced

Microsoft Windows Active Directory

Microsoft FrontPage 1

Microsoft FrontPage 2

Microsoft Visual Basic 6.0

Red Hat System Administration I

Red Hat System Administration II

Cisco E-Learning

AWS Essentials Web Hosting and Cloud Computing

Wennsoft Continuing Education San Diego Synergy 2014 – 10 units

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