Manager Engineer

Jenison Lee Retzlaff

IT Consultant, Director of Infrastructure, IT Manager, Senior Systems and Network

Administrator/Architect/Engineer

*.*.********@*****.***

Summary

As a firm believer in the power of cooperation, I am an established team player, while also very comfortable in

positions of leadership, in which my ability to take initiative has led to my reputation as the “go-to person.” I

am a solution-oriented problem solver who thinks outside the box, utilizing creativity to find unique ways to

accomplish complex and challenging tasks.

- Tenacious and relentless when faced with a challenge, a problem, or an initiative.

- Ability to train others on multiple levels, in accordance with and in recognition of the level of technical ability

and cognitive capacity of the audience/learner.

- With over a decade of learning, working, managing and training in the field of information technology, I have

developed a vast network of IT professional associates, providing a wealth of knowledge base from which I can

readily draw.

- With a solid dedication and commitment to my own professional development, as well as a genuine interest in

the ever-evolving field of technology, I continue to advance my skill set through formal certification training

programs and independent learning.

- As the industry, and technology itself, is consistent and persistent in its advancement, I seek to aide and direct

growth in enterprise environments in a planned and manageable manner while maintaining focus on the end

goal in accordance with the organization’s mission plan.

Specialties

SKILL SET/CERTIFICATIONS

Current:

CompTIA; A+ (2003&2006), Network+, Security+.

Microsoft; M.C.P (70-270/XP)M.C.T.S. (70-620/VISTA)

Expired:

CISCO; C.C.N.A.

Formally Trained:

Juniper: JNCIA-JUNOS, JNCIA-JUNOS as a Security Language, EX/SRX

VMware: VCP-VSphere 5.0, 4.1, 4.0, ESX 3.5/3.0 by VMware.

Self Study:

Microsoft: M.C.S.A./S.E., MCITP Enterprise Administrator.

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Aruba: A.C.M.A., A.C.M.P.

Experience

Instructor of Computer Hardware and OS Technologies at Springfield Technical Community College

August 2005 - Present (8 years 5 months)

Instructor for the CompTIA A+ hardware certification course offered through the Center for Business and

Technology. Preparing students for the CompTIA A+ exam, teaching computer hardware technologies,

preventative maintenance, hardware upgrade/replacement procedures, advanced troubleshooting, and

introduction level networking.

2 recommendations available upon request

Director of Infrastructure at Holyoke Community College

March 2012 - January 2013 (11 months)

As the Director of Infrastructure, I have been directly responsible for or involved in all aspects of the

college’s enterprise IT operations. I have been the primary for all high-level technical initiatives and

functions. This includes, but is not limited to, datacenter, network, and systems management as well as daily

maintenance, and administration in support of multiple sites supporting 2,500 machines, 77 servers, 3,200

concurrent users, 1 direct report, and the management and security of nearly fifty thousand identity sets.

Initiatives/responsibilities include:

- Advising and consulting with high-level administrative personnel outside of IT in support of varied

initiatives geared towards the advancement of the institution as a whole.

- Maintaining communications with, and guiding on a technical level, Director level personnel of multiple

divisions within ITD.

- Daily operation and maintenance, as well as reconfiguration and upgrade, of HCC’s enterprise systems and

network environment.

- Supporting additional initiatives, installations and implementations such as the migration of the Banner SIS

from the legacy unix platform to a virtualized RHEL5/6 environment.

Manager of Information Technology / Network & Systems Administrator at American International

College

June 2008 - April 2012 (3 years 11 months)

•Currently responsible for, manage, maintain, and support the:

•WAN- INET2 feed. Uptime&performance monitoring. Public addressing/DNS. Secure Gateways running

EBGP/ StaticNAT/ SourceNAT/ VALNS/ 802.1q/.p/ DHCP/ Multi-Zone Firewall Configuration/ Integrated

UTM Features/ Anti-Spam/ Virus/ Malware/ Spyware/ IDP/ SRX Local Captive Portal/ SRX as Enforcer to

UAC/ Juniper SA Series SSL VPN/ CISCO ASA IPSecVPN/ FTP/ SSH/ HTTP/ HTTPS/ PKI/ Security

Certificates.

•LAN/WLAN- Primarily Juniper L2 Switching infrastructure utilizing legacy CISCO at the access layer.

Juniper EX4200/3200/ Virtual Chassis/ 10GiE/ Single mode/ Multi mode Fiber/ RVI/ RSTP/ STP/ VTP/

JUNOS/ CISCO IOS/ CISCO 3750/ 3560/ CE500/ Juniper UAC-IC4500/ Captive portal/ Host checking/

Application Filtering/ EES/ Odyssey Client/ Aironet 1100/ 1130/ 1140/ Airwave WLAN Management/ Solar

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Winds Orion NPM/ APM/ NTA/ Aruba/ Meru/ Meraki/ CISCO WLAN Controllers/ Configuration/

Installation/ Implementation/ Migration/ Monitoring/ Maintenance/ Administration.

•VMware- Migrated from VMware 3.0 to 3.5/4.0/4.1. Engineered current Virtual Cluster utilizing Dell R805/

815 Servers/ Equal Logics PS5000e/6010. Host 25+ virtual servers, Win2k3/2k8/R2/ CENTOS/ HA/ DRP/

Fault Tolerance/ VMware Snap Shots/ Cloning/ Update Manager/ P2V/ EQL SAN HQ/ Replication/ Tiered

Storage.

•Microsoft- Design/ Engineer/ Implement/ Maintain/ Support/ Win 2k3/ 2k8/R2 Infrastructure/ AD DS/ AD

LDS/ AD CS/ AD Federation Services/ NPA/ RADIUS/ LDAP/ 802.1x/ SQL 2k5/2k8/ OU design/ Group

Policy

•Additional Employed technologies: Barracuda SPAM Firewall/ HP Proliant DL140/ 380/ ML350/

Tape/Disk/Electronic Off Site BU/ replication/ Retrospect/ Veritas/ Xserves/ OSX 10.5/10.6 Server/

CENTOS (not really, at all, the centos that is, checking if you were reading all this)/ SNMP/3/ NESUS/

NMAP/ LifeRay Portal/ Apple Remote Desktop/ VNC/ Centurion/ Web Help Desk Ticketing System?

MySQL/ POSTgre/ UMRA/ IDP/ IDS/ IPS/ DPI/ Metasploit/ caffeine.

Consultant at Robert Half International

2005 - January 2010 (5 years)

During my time with RHT I have consulted for Dunkin Donuts, Merrill Lynch, Lebeuf, Lamb, Green, and

McRae, and American International College.

Dektop roll outs, VPN installations and configuration, router installations and configuration (CISCO), domain

builds, and site surveys. CISCO, CISCO, Microsoft, and more CISCO.

My employment at AIC was initially a temp to hire 6 month position which was converted and has gone the

course of 3 years. Refer to AIC description for full details.

Instructor of Computer and Networking Technologies / Systems Support at Porter & Chester Technical

Institute

December 2006 - July 2008 (1 year 8 months)

During my time as an Instructor at Porter and Chester Technical Institute for the Career Program in Computer

/ Network Technology I was also one of two Network / Systems Administrators responsible for the

computing environment of the facility as a whole.

I was an instructor for the CompTIA A+, and Security+ certifications as well as the Microsoft MCP (XP),

MCTS (Vista) certifications. I also integrated as much Network+ into the Security+ curriculum as I could and

the Microsoft 2003/2008 server platforms during the MCP/Vista sections. I built into my schedule high level

hands on labs to give students extensive experience with troubleshooting and problem solving. I learned to

always "keep my audience in mind" and when talking to people, I am always encouraging, empathetic,

concerned, detailed, and patient. Fellow instructors, previous employers, and students alike recognize my

passion and interest for the field of technology. While I was at P&C I had time to further developed my skill

set with DHCP, DNS, WINS, Active Directory, SYSPREP, Imaging and Image creation/modification, WDS

deployment, Local and Group Policy, RRAS, RDP, and Roaming and Mandatory Profile implementation. I

worked with, tuned, and trained LAN, WLAN, and VLAN, WAN, VPN, TCP/IP, OSI Model, Ports &

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Protocols and Security best practices.

7 recommendations available upon request

LAN / WAN Consultant at The Computer Merchant

August 2004 - January 2007 (2 years 6 months)

LAN / WAN Consultant / Engineer for: Hewlett Packard, Meryl Lynch, Dunkin Donuts, and Verizon.

Consulted on multiple sites for implementation of advanced telephony technologies, VPN implementation,

and CISCO hardware configuration.

Skills & Expertise

DNS

Active Directory

VPN

Firewalls

VMware

DHCP

Cisco Technologies

TCP/IP

Servers

Switches

Routers

CCNA

Security+

Operating Systems

Cisco IOS

Data Center

Security

VMware ESX

Networking

XP

Troubleshooting

System Administration

Juniper

Windows

Windows 7

Network Administration

Group Policy

WAN

Microsoft Certified Professional

Hardware

System Deployment

Computer Hardware

Network Security

BGP

Software Installation

Windows Server

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HP

Unix

SAN

Computer Security

High Availability

Disaster Recovery

Virtualization

Wireless Networking

Help Desk Support

Microsoft Exchange

VLAN

OSPF

SharePoint

Information Security Management

Education

Self Study

Certification, CompTIA; A+, Security+. Microsoft; M.C.D.S.T., 2007 - 2007

Springfield Technical Community College

Certification, CompTIA: A+, Network+. Microsoft; M.C.P. Cisco; C.C.N.A., 2003 - 2007

1 recommendation available upon request

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Jenison Lee Retzlaff

IT Consultant, Director of Infrastructure, IT Manager, Senior Systems and Network

Administrator/Architect/Engineer

*.*.********@*****.***

10 people have recommended Jenison Lee

"Lee was a terrific student; I am not sure who taught whom more. He would take the lessons and expand on

them to explore all the different potential outcomes. This attitude and drive made it a simple decision to hire

him as the instructor for our PC/Network Technician Certification Program at STCC. He received nothing but

the highest evaluation marks from his students and from his colleagues."

Jim Beane, Director of Program Development Workforce Development, Springfild Technical Community

College, managed Jenison Lee at Springfield Technical Community College

"Mr. Jenison Lee Retzlaff was my Instructor of Computer Hardware and OS Technologies at Springfield

Technical Community College. It is clear to me that Mr. Retzlaff is a talented expert in Computer Hardware

and OS Technologies and a knowledgeable authority in the field of information technology. I value and

respect his opinions and his expertise in all areas of computer technologies. And I highly recommend him as a

valued asset and talented professional addition to any organization."

Maurice Lindsay, Deputy Clerk, United States District Court, was with another company when working

with Jenison Lee at Springfield Technical Community College

"Lee's attitude and efforts went a long way toward shaping our current curriculum. I found him to be

knowledgeable in his field and a valuable asset to the department. It was with regret that the school lost his

services to another carreer opportunity. I wish him well in whatever pursuit he chooses."

Bill Cox, Computer Department Supervisor & Instructor, Porter and Chester Institute, managed Jenison

Lee at Porter & Chester Technical Institute

"I was a student of Mr. Retzlaff's for a semester while attending class at Porter & Chester Institute. He

possesses a staggering knowledge of the field and its intricacies, evidenced by his ability to quickly and

concisely answer any question that the other students or I could throw at him. He stresses the importance of a

diligent work ethic, a sense of professionalism, and forging a genuine interest in the field. He has an

outstanding ability to convey information in a way that is both interesting and memorable. His instruction was

of the highest quality that I've ever received. I can't recommend him enough!"

Dan Polaske, Student, Porter & Chester Institute, Rocky Hill, reported to Jenison Lee at Porter & Chester

Technical Institute

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"Mr. Retzlaff is a rare gem. In the time I spent working with Mr. Retzlaff I found him to be a fountain of

knowledge and an inspiration for the quest for excellence. He has an innate talent for working with people at

all levels and the implausible propensity for fixing the un-fixable. Any organization that would be fortunate

enough to hire Mr. Retzlaff would most assuredly benefit from the incredible contribution he would bring to

the organization's talent base."

Steven Kardos, Instructor/IT Support, Porter and Chester Institute, worked directly with Jenison Lee at

Porter & Chester Technical Institute

"Lee is an excellent instructor and a knowledgeable IT professional. I can attribute a large amount of my

success in the field to his excellent teaching methods. While I was attending Porter and Chester his expertise

was constantly tested by both students and his duties in the school, he never came up short."

Jeff Cox, was Jenison Lee's client

"Jenison Lee is a highly knowledgeable instructor and his enthusiasm in the classroom elevates the efficacy

of his teaching a great deal. He is able to project the subject matter in such a way that doesn't leave you

feeling confused or lost, and if the odd question does arise, they are answered in a way that enhances the

knowledge for the whole classroom as opposed to just the individual. I don't feel that I could have succeeded

to the level I have if I did not have him for an instructor."

Zac Mcgrath, was Jenison Lee's client

"Jennison Lee is a consumate professional, knowledgable in all aspects of information technology and is an

exc excellent educator."

Glenn R. Betournay, Computer and Network Technologies Instructor/System Support Manager, Porter

and Chester Institute, worked directly with Jenison Lee at Porter & Chester Technical Institute

"During the course of my training at Porter and Chester I had the distinct pleasure to have Lee as an

instructor. His guidance and experience both technically and professionally proved to be invaluable. During

the course of my educational career, which includes both technical and post secondary education, I have not

had an instructor or professor who was more competent or capable of filling those roles. His ability to present

information in a clear and concise manner and interject real world experience was a definite benefit to my

classroom experience. He is truly an asset to Porter and Chester. Taking this into account, I would not have

any reservations of working with Lee in any capacity."

Scott Jarvis, Student, Porter and Chester Institute, reported to Jenison Lee at Porter & Chester Technical

Institute

"Lee was a terrific student; I am not sure who taught whom more. He would take the lessons and expand on

them to explore all the different potential outcomes. This attitude and drive made it a simple decision to hire

him as the instructor for our PC/Network Technician Certification Program at STCC. He received nothing but

the highest evaluation marks from his students and from his colleagues."

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Jim Beane, Director of Program Development Workforce Development, Springfild Technical Community

College, taught Jenison Lee at Springfield Technical Community College

Contact Jenison Lee on LinkedIn

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Contact this candidate