John Ross
623 Greenwood Ave, Toronto,
Ontario M4J 4B1
Cell: 647-290-5018 E-Mail:
jhr@pretzel-logic.ca
UNIX Systems Administrator / LINUX Systems Administrator / Infrastructure Engineer / Automation Specialist / Architect
Senior IT Professional with:
- Over 15 years of experience in IT
- Extensive experience with a variety of UNIX and LINUX operating systems
- Excellent knowledge of Internet technologies
- Broad knowledge of networking tools and protocols
-
Experienced with both physical
and electronic security methodologies
MessageLabs/Symantec
Provider of Òsoftware as a serviceÓ (SaaS) security products. Offers in-line
web, IM and email filtering over a global network.
Senior Service Platform Engineer August 2009 – Present
Responsible for planning, building upgrades and new features into the Web and
IM products, while ensuring that the infrastructure can be supported by the NOC
á Build and maintain MessageLabsÕ global SaaS web filtering infrastructure to maintain 100% service availability
á Co-ordinate with hardware and software deployment teams to ensure smooth upgrades
á Represent the infrastructure team on projects to ensure new features can be effectively supported and maintained
á Led the effort to automate setup of new clusters, reducing implementation times for new environments by 80%
á Assist the NPS team in implementing upgrades to allow QA to properly test new services
Technologies Used: HP DL360 / RedHat Linux / F5 LTM / F5 GTM / VMWare / PXE / Squid /
Shell Scripting / NetApp / Cisco Switches
Non-Production Support Engineer September
2007 – August 2009
Designed and built new development and QA environments in Toronto
á Implemented and maintained a network in Toronto to support the QA and development teams
á Assisted in the design of a new network to support virtualization and allow faster provisioning and better support with lower costs
á Support the development and QA departments in Toronto
á Liaise with Service Platform Engineers to design and implement new functional testing environments
Technologies Used: HP DL360 / RedHat Linux / Cisco CSS / VMWare / Shell Scripting / Cacti / NetApp
Cisco Switches
Pretzel Logic
E-Mail and groupware hosting provider
Owner/Operator September 2005 – September 2007
Started this business to focus on minimizing silently dropped emails while maintaining accurate SPAM and virus detection
á Designed and built a scalable e-mail and groupware hosting platform to provide clients with maximum uptime and performance
á Set up and maintained a set of firewalls based on OpenBSD's PF to protect against unwanted and/or malicious traffic
á Implemented advanced SPAM and anti-virus solutions to help ensure end-users' security
á Constantly monitored the network and servers for security breaches using pro-active countermeasures and intrusion detection systems
á Monitor for performance problems to ensure that customers continue to receive excellent service
Technologies Used: FreeBSD / PF / Anti-virus / Anti-SPAM / Postfix / Cyrus IMAP / OpenGroupware / Horde Groupware / Apache / PostgreSQL
TD Canada Trust
A large international bank based in Canada
Contractor April 2002-June 2006
Built a large distributed batch processing system
á Led the batch development of two major projects that continues to save the bank several million dollars per quarter
á Helped architect and implement a massively distributed computing grid
á Helped design and implement procedures to ensure the bank remained SOX/COSO compliant
á Mentored new team members, enabling them to become valuable resources
á Designed and developed multiple monitoring applications to enable troubleshooting and accelerate resolution times
Technologies Used: BASH Shell Scripting / PERL / Sun Grid Engine / Solaris / Suse Linux / Apache
Netcom/AT&T
Canada IES
A national ISP that offered access as well as hosting. Over 5 years I held three different positions, the last of which was a UNIX Systems Administrator
UNIX Systems Administrator June 1998 – April 2002
A member of a large team that was responsible for all production UNIX servers
á Developed and secured the server template for the FreeBSD servers to allow fast provisioning of new hardware
á Helped ensure servers and networks were secure and kept current
á Lead the sysadmin group's Y2K effort to ensure service levels would be maintained through the year 2000 turnover
á Trained the customer maintenance group on DNS procedures to facilitate the handoff from the Sysadmin group
Technologies Used: Solaris / FreeBSD / Apache / SendMail / Postfix / Sparc Servers / NetApp