Sean Walberg

Current

• Senior Network Specialist at CanWest MediaWorks
• Author at freelance (Sole Proprietorship)

Past

• Senior Network Analyst at Ceridian Canada
• Senior Communications Engineer at Health Sciences Centre
• Webmaster/Systems Administrator at escape Communications

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Education

• University of Manitoba

Recommended

6 people have recommended Sean

Connections

149 connections

Industry

Internet

Websites

• My Blog
• My Portfolio

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, 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

• Senior Network Specialist

  CanWest MediaWorks

  (Public Company; 1001-5000 employees; Entertainment industry)

  November 2006 — Present (1 year 10 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, Radware load balancers, NetScreen firewalls, and Check Point firewalls.

• Author

  freelance (Sole Proprietorship)

  (Sole Proprietorship; Myself Only; Internet industry)

  January 2001 — Present (7 years 8 months)

  I'm a tech writer. Some the things I've done
  
  - 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
  
  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 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

  (Government Agency; 1001-5000 employees; Hospital & Health Care industry)

  June 1999 — April 2002 (2 years 11 months)

• 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

• University of Manitoba

  BSc. Comp. Eng, Computer Engineering, 1994 — 1998

Additional Information

Sean Walberg’s Websites:

• My Blog
• My Portfolio

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)

Sean Walberg’s Contact Settings

Interested In:

• career opportunities
• consulting offers
• job inquiries
• expertise requests
• business deals
• reference requests
• getting back in touch