This document provides a summary of Lorrence Scott Mahaffy's professional experience and technical skills. He has over 20 years of experience in systems and network engineering, with expertise in areas such as networking, virtualization, storage, Windows and Linux administration. He has worked in various industries and held roles such as network engineer, senior systems engineer and technical support engineer. He has a broad set of technical skills and the ability to communicate complex concepts to non-technical individuals.

1. LORRENCE SCOTT MAHAFFY
Denver, Colorado Area
job4me@mahaffy.net
LinkedIn; http://www.linkedin.com/in/lorrencemahaffy
CISSP; CCNA (Routing and Switching), CCNA (Security), CCNA (Voice), CCNA(Video);
MCSE
A versatile Systems and Network Engineer with a broad field of technical knowledge and
experience. A forward thinking and proactive problem solver who excels in diverse industries as
well as multiple technology domains.
Possess strong hands-on leadership and team building skills.
Focus on customer satisfaction and completing projects ahead of schedule.
Successfully accomplished projects in a high pressure 24/7/365 high-visibility work environment.
Coordinate and communicate with multiple and diverse departments.
Utilize innate analytical skills with views toward the “big” picture.
Ability to interpret complex concepts and ideas to non-–technical individuals.
Consistently exceed expectations.
SKILLS, TECHNICAL AND CORPORATE
Core Competencies: Systems Administration; Network Administration; Hardware,
Software, Network Diagnostics; Network Monitoring; Traffic
Monitoring; VMWare Virtualization; NetApp Storage;
Disaster Recovery; Troubleshooting; Solarwinds; High-
Availability;
Platforms: Microsoft Windows Server (up to 2013); Microsoft Windows
Desktops (up to 10); Linux (many flavors), Solaris, SUN,
UNIX; HP; Dell; IBM; Print Management;
Networking: LAN/WAN; VLANs, VPN, DNS, DHCP, FTP, SSH,
Terminal Server, SQL Server, Exchange Server, Ethernet
TCP/IP, v4, v6, WiFi, VoIP; IT security, PIX, ASA; Cisco,
Foundry, Juniper, Brocade, Extreme, HP, Dell; Samba, NFS;
IP, RIP2, OSPF, IGRP, EIGRP; T1, ISDN, DOCSIS/DSL,
ATM/Sonet; WAN acceleration; RADIUS/ TACACS+;
Experienced in developing policies and procedures for all
areas of networking.
Tools: Microsoft ADS; RegEdit, Putty; SSH Secure Shell;
MobaXterm; Wireshark, Nmap, Sflow, DOS Batch Scripting;
Java; Perl; Shell; Python; C; C++; Network Analyzers,
Optiview;
Network Monitoring Tools: Netstat; MRTG; Nagios; InterMapper; SolarWinds Kiwi
Syslog Server; MRTG; Cacti; 3rd
Party

2. Corporate Skills: Customer Service; Team Building; High-level presentations;
Partner relations; TQM; Agile/Scrum; Project Management;
Very well received technicaltrainer of employees.
Database: Experienced in writing SQL scripts. Knowledgeable with
Informix, Oracle, My SQL, MS Access, and MS SQL server
relational database set up and operation.
Office Skills: Strong knowledge of basic office software (including MS
Project) and scripting for these products.
Web: Familiar with the use of HTML/Web design, CGI, XML, and
other Internet resources.
PROFESSIONAL EXPERIENCE
ATA Contract Services, in support of
USGS; National Geospatial Technical
Operations Center Denver, CO
Dec 2012 - Present
Network Engineer
Maintain unit's Network Systems; 10G, fiber, firewall, monitoring, acceleration, load balancing,
packet analysis, authentication tracking, and troubleshooting.
Network services; IP forwarding, OSPF, STP, metro Ethernet, NFS, SNAP, DNS, DHCP, and
Active Directory.
Network and Systems Documentation.
Network Security; monitor, patching, hardening.
Upgrade and Modernize Network Components; Cisco, extreme, HP, etc...
VMWare installation and maintenance; ESXi, Dell and HP, and virtualized workstations and
servers in a ‘Cloud’ migration.
NetApp data storage maintenance.
Windows server 2003, 2008, and 2012.
ArcMap services.
Contracting
Denver, CO
Dec 2010 – Dec 2012
Help deploy vendor eTV application for MSO divisions.
Help deploy vendor downloadable Conditional access product to a MSO's divisions.
STB and application testing for CE vendors and MSOs.

3. Canoe Ventures
Denver, CO
Apr 2010 – Dec 2010
Canoe VenturesTM
is changing television.We're creating innovative products and services for networks to enhance
programming and empower viewers to interactwith their TVs. We are accelerating TV's evolution by combining the
impactand reach of traditional TV with new technologies and marketing solutions thatwill better connect consumers
with brands.Founded in 2008 by the country's leading cable operators,Canoe is making TVthe next greatdigital
medium.
Senior Systems Engineer, Deployment
Work directly with engineering and technical staff at partner MSOs and programmers to assess
technical configurations and requirements for the deployment of Canoe products and services
Responsible for Company Headend management.
Work closely with Canoe product development and system integration teams to identify and
define product and test requirements.
Oversee and guide day-to-day activities of technicians and contractors
Develop and maintain field deployment plans spanning multiple simultaneous deployments.
Perform and coordinate testing and configuration activities both on-site and remotely in
production environments during deployment and operational readiness phases.
Troubleshoot technical issues involving Canoe products and services.
DOCSIS, CMTS configuration. IP video multicast architecting, installation, and maintenance.
Document issues in bug tracking and incident tracking systems.
IP video multicast architecting, installation, and maintenance.
MySQL Installation, integration, and maintenance.
Assisted with operations of Juniper NetScreen / QFX3500 and Cisco 2960 switches and 2901
Firewalls.
Flashlight Engineering and
Consulting Portland, OR
Oct 2008 – July 2009
FLASHLIGHT Engineering and Consulting provides expert consulting and software development services to the US
cable and telecom operators and their primary vendors. If you are involved in Interactive Television,we can help you
find your way in the dark.
Network and Systems Engineering
Manager
Responsible for Company IT management.
Responsible for Company Headend management.
Operated Cisco 1900, SRP 500, ASA 5500.
Installed and operated a 30 user Asterisk IP phone system.
Test and integration scripting in Java and Perl.
(DOCSIS) CMTS installation and configuration.
Arris, C-COR Beaverton, OR Oct 2007 – Sept 2008

4. ARRIS is a global communications technology company specializing in the design and engineering of broadband
networks. We are a leading developer, manufacturer and supplier of cable telephony, video and high -speed data
equipment, as well as outside plant construction and maintenance equipment for cable system operators .
Senior System Integration Engineer
Responsible for rebuilding TWC ISA architecture headends. Various other odd jobs as needed.
(DOCSIS) CMTS installation and configuration.
Oracle administration.
Cable Television Laboratories,
CableLabs Denver, CO
Jan 2006 – Oct 2007
Cable Television Laboratories, Inc. (CableLabs®), a nonprofit research and development consortium, is dedicated to
helping itscable operatormembersintegrate new cable telecommunications technologies into their business objectives.
Manager, Digital Headends
Responsible for headend configuration management and system integration for all CableLabs
initiatives such as OpenCable, OCAP, DSG and DOCSIS. Documented and tracked the detailed
configuration for the various lab environments and plants in support of interoperability and
certification events.
Closely worked with engineers from CableLabs, participating vendors, and visiting engineers to
ensure that all CableLabs Headends have the needed configuration and functionality to support
development efforts and conduct certification testing.
Responsible for working with various projects to determine new requirements and capabilities
needed as well as work with the headend equipment vendors to provide solutions and designs to
support these new development and testing requirements.
IPTV (Video over IP) transport architecture, migration, and installation.
Informix (DNCS) report writing and integration.
MySQL Installation, integration, and maintenance.
Various vendor ECM testing and troubleshooting.
Qwest Communications Denver, CO May 2005 – Jan 2006
Qwest Communications International Inc. is a leading provider of voice, video and data services.
Lead Technical Support Engineer
Project lead for deploying new IPTV digital video head-end. Participating in strategic development
planning, creating roadmaps, and tactical execution schedules for deployment of new IPTV based
digital video delivery system. Subject mater expert for developing Digital Video operations and
procedures.
Responsible for managing 200 plus channel legacy video head-end components. Managing ATM,
IP, and RF content delivery over 1 and 10 Gig-E, OC3, and OC12 backbones to COs.
Responsible for maintaining two diverse legacy digital video systems; Motorola Next Level and
Scientific Atlanta DNCS.
Informix (DNCS) report writing and integration.

5. Project lead for head-end maintenance crew. Working to upgrade various legacy components within
said head-end to current technologies. Upgraded satellite dish weather-proofing.
Planned and managed Headend expansion project with respect to space requirements, video
equipment relocation, cooling, heating, electrical, and network and optical harnesses.
Time Warner, Inc. – (multiple positions
held)
Aug. 1997 – Nov. 2003
Time Warner Inc. is the world's leading media and entertainment company, whose businesses include filmed
entertainment, interactive services, television networks, cable systems and publishing.
Senior Network Engineer - (2002) Mystro TV - Westminster, CO
Maintaining all aspects of eight in-house digital video delivery systems (DBDSs) for division’s
software development, hardware development, and QA groups resulting in improved system
performance and software development cycle efficiency.
Participated in strategic development planning, creating roadmaps and tactical execution schedules.
Primary consultant to software developers providing divisional requirement, needs, expectations,
and deployment constraints resulting in fewer software development cycles.
Informix (DNCS) report writing and integration.
Operation and maintenance of many network access vendors equipment such as Cisco, Foundry, and
Juniper.
Vendor project manager and primary validation engineer in the development of alternative QAM
and Edge devices with the goal of providing alternative hardware options to division resulting in
lowered costs of operation.
Broadband Network Analyst - (1998) Time Warner Cable - San Diego, CA
Primary network administrator and engineer for (previously) new and unproven digital video
delivery system (DBDS). Responsible for maintaining all aspects of the division’s DBDS which
resulted in turning management’s concerns and uneasiness into knowledge and confidence in this
system and thus providing new product revenue.
Managed the lowest hardware or maintenance outages for a DBDS system within Time Warner
Cable. Contributed to division’s awards for top customer service and sales during this time.
Provided close support, assistance, and training for Marketing, Programming, Management, Plant
operations, Field Services, and Customer Service department personnel which resulted in effective
communication and efficient execution of marketing campaigns.
Trained and supervised a four person revolving support staff resulting in improved department
performance and increased inter-department confidence.
MySQL Installation, integration, and maintenance.
Informix (DNCS) report writing and integration.
Planned, developed, and implemented many high profile projects which improved the division’s
reliability and customer satisfaction. Some of these projects included; re-engineered TCP/IP system
architecture and ATM configuration to improve network performance and expandability, migrating
to a high-availability platform to decrease system downtime, implementing security and VPN
standards for remote administration and vendor access, development of network utilization and
customer usage data reporting tools, and implementing an automated backup solution for increased

6. system fault tolerance.
Network Technician Time Warner Cable - San Diego, CA
Provided project leadership for a seven-member IT team and a network administrator for a 300-user
network (MS 2000 and NT 4.0, Novell 3.12 and 4.11).
Planned, assisted, and implemented many high-profile as well as high-visibility projects, a net result
of which was improved divisional productivity and decreased IT costs. These projects range from
core server and desktop OS conversions to internet and remote access as well as improved security.
Science Application International
Corporation (SAIC) San Diego, CA
March 1996 –June 1997
Science ApplicationsInternational Corporation(SAIC)is the nation's largest employee-owned researchandengineering
company, providing information technology, systems integration and e-Solutions to commercial and government
customers.
Systems Test Engineer
Chief biochemical assay-procedure consultant in the development of an automated mass biological-
assay robot to perform high-throughput drug screening for biotechnology applications. Product was
based on second-generation robotic laboratory equipment I helped develop in a previous position.
Learned and utilized robotic motion-planning software and hardware communication techniques.
Learned and performed software modifications using objective C to improve robotic motion
performance resulting in improved product development time.
EDUCATION
BS in Chemistry/Biochemistry, University of California, San Diego, La Jolla, CA - 1990
PROFESSIONAL CERTIFICATION
Certified Information Systems Security Professional [CISSP]; 482397
Cisco Certified Network Associate, CCNA [Routing and Switching]; CSCO10868508
Cisco Certified Network Associate Security [CCNA Security]; CSCO10868508
Cisco Certified Network Associate Voice [CCNA Voice]; CSCO10868508

7. Microsoft Certified System Engineer (MCSE, NT 4.0); 1374553
Certified Novell Administrator (CNA, 3.12); expired
Cisco Certified Network Professional Security [or CCNP Security] – [in progress]
Microsoft Certified System Engineer (MCSE, 2003) – on Hold
PROFESSIONAL DEVELOPMENT
Advanced DBDS Administration and Troubleshooting Certificate
Committee on National Security Systems (CNSS) 4011 Standard Certificate
UNIX Operating Systems Programming, Professional Certificate
UNIX Systems Security, Specialized Certificate
UNIX Operating Systems, Specialized Certificate
UNIX System Administration, Specialized Certificate
Cisco Router Configuration Certificate
Marconi Core Products, ATM Certificate
Novell 4.11 Administration, IntranetWare Certificate
Veritas Netbackup Certificate
Veritas Volume Manager Certificate
ADDITIONAL PROFESSIONAL EXPERIENCE
Ten years as a research scientist in the Biotech arena developing test equipment and providing IT
functions to companies and co-workers.
Three years in an Electrical Engineering and Computer Science program at the University of
California, San Diego
Managed and operated a bulletin board service averaging 60 to 80 active users, 1980-1987.
Adult Leader in Boy Scouts of America at the Council and District level.
Eagle Scout, Boy Scouts of America; Brotherhood, Order of the Arrow.