Network Guy, Linux Guru, Author
Canada
- Current
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- Special Projects Engineer at Vantage Media
- Author at freelance
- Past
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- Senior Network Specialist at CanWest MediaWorks
- Senior Network Analyst at Ceridian Canada
- Senior Communications Engineer at Health Sciences Centre
- Webmaster/Systems Administrator at escape Communications
- Education
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- University of Manitoba
- Recommended
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10 people have recommended Sean - Connections
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222
connections
- Industry
- Internet
- Websites
Sean Walberg’s Summary
I'm a network guy who loves Unix/Linux. I solve problems.
I work with networks: LAN, WAN, Internet, Voice over data or traditional TDM. I'm also adept at running web farms, and Internet infrastructure such as email and DNS. I'm a former developer turned systems administrator turned network engineer which gives me a deep understanding of the technologies I work with.
My primary focus on the network side is on Cisco and Check Point products. On the Unix side, I'm most familiar with Fedora/RHAS and Solaris though picking up other stuff is never a problem.
I'm not just a gearhead, I can also communicate. I've written a book on Check Point, co-authored one on consumer wireless, and several articles on various topics from VoIP to Unix performance tuning for O'Reilly, IBM, Linux Journal, and other places.
Sean Walberg’s Specialties:
Internet routing (BGP), security, WAN routing and network infrastructure. Linux/Unix administration, tuning, security, and Internet hosting. IP and traditional telephony. Writing on the above topics.
Sean Walberg’s Experience
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Special Projects Engineer
Vantage Media
(Privately Held; Internet industry)
December 2009 — Present (1 month)
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Author
freelance
(Internet industry)
January 2001 — Present (9 years )
I'm a tech writer. Some the things I've done
- Co-authored "Wireless for Dummies, all in one desk reference"
- Articles and tutorials about LDAP and Unix performance tuning for IBM developerWorks
- Articles about VoIP for Linux Journal
- Tech editor and content for Cisco Press
- "CCSA Exam Cram 2", a book about the Check Point certification
- Various articles on Unix performance monitoring and tuning for IBM developerWorks
- Tech editor of "LPI Exam Cram 2", a Linux certification book
- 100 issues of a weekly Linux newsletter
I've also helped a lot of people with Linux, Cisco, and other network related problems, such as
- Miscellaneous network assessments for small companies
- Back end web coding (PHP, SQL, Perl) and troubleshooting
- Performance tuning of MySQL, Web Apps, and networks
- Speaking at Sharkfest '08 and '09 on the topic of Troubleshooting VoIP problems with Wireshark.
I also spent 2 years working part time with b5media.com, growing their server infrastructure from 2 servers to 14, including replicated databases and load balanced web slaves. -
Senior Network Specialist
CanWest MediaWorks
(Public Company; Media Production industry)
November 2006 — December 2009 (3 years 2 months)
Responsible for LAN/WAN design and operation, Internet hosting of popular websites including Canada.com, and network management. Working with Cisco routers and switches, F5 and Radware load balancers, NetScreen firewalls, and Check Point firewalls.
I'm was previously working on deploying Cisco IP phones across several offices in our enterprise, which includes UCM6, Unity, and IPCC Express. I also recently finished with some upgrades to our Internet hosting including a migration of load balancers to a pair of F5 LTMs and some custom iRules to help improve service.
I'm currently working on some PCI related projects, bringing social media to the enterprise, and various network maintenance projects. -
Senior Network Analyst
Ceridian Canada
(Public Company; 1001-5000 employees; CEN; Human Resources industry)
August 2002 — November 2006 (4 years 4 months)
I managed the networks across Canada for my company, along with multihomed Internet connections and our Internet hosting presence. I was also involved in our voice infrastructure.
Product experience includes Avaya and Asterisk VoIP, Cisco routers, switches, and load balancers, Check Point firewalls running on IPSO, and Linux. -
Senior Communications Engineer
Health Sciences Centre
(Hospital & Health Care industry)
June 1999 — April 2002 (2 years 11 months)
I was originally brought into the HSC to develop some web based billing tools for the internal phone system. Shortly after completing this, I was promoted into network and server management because the three senior people left for the .com boom.
At the end of my tenure here I was responsible for managing the HSC LAN and was mid way though migrating it from ATM LANE to switched Ethernet and VLANs. I was also the primary interface between the various hospitals (pre-WRHA) to Manitoba Health with respect to the health WAN, in addition to managing the private health WAN that previously existed.
I also trained and supervised two people. -
Webmaster/Systems Administrator
escape Communications
(Privately Held; 1-10 employees; Internet industry)
March 1995 — May 1998 (3 years 3 months)
I worked at a dial up ISP while going to university. I started off as the only employee, my job was providing support to clients. By the time I left, we were the largest ISP in the province, and I was managing Solaris servers and assisting with the network.
Sean Walberg’s Education
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University of Manitoba
BSc. Comp. Eng , Computer Engineering , 1994 — 1998
Additional Information
Sean Walberg’s Websites:
Sean Walberg’s Interests:
Linux, Telephony/VoIP, Microcontrollers, Routing, Security
Sean Walberg’s Groups:
Manitoba Unix Users' Group, Asterisk Users' Group,Association of Professional Engineers and Geoscientists of Manitoba (P.Eng)
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Linux Expert -
"The CCVP Group" Group for Cisco Voice Engineers (500+ members) -
Wireshark Users -
CISCO PROFESSIONALS -
MUUG - Manitoba UNIX Users Group -
Syngress
Sean Walberg’s Contact Settings
Interested In:
- career opportunities
- consulting offers
- job inquiries
- expertise requests
- business deals
- reference requests
- getting back in touch
