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Work Background
DigitalOceanStaff IT Systems Administrator
Jan. 2021 - Jan. 2025Toronto, Ontario, Canada• Senior member of IT team providing day-to-day advanced troubleshooting and long-term project implementation.
• Provided expert-level knowledge and guidance on IT systems and processes to multiple teams across the enterprise.
• Provided Ubuntu Linux Desktop support to over 150 Engineers across dozens of teams and MacOS support using JAMF.
• Built fully automated systems using Okta Identity Engine, Okta Workflows, Google Apps Script (via GCP) and Bash scripting to allow a team of four IT Specialists to serve over 1,600 employees.
• Fully automated the employee Onboarding and Offboarding experience, saving 10-20 hours a week for the IT Specialist team.
• Managed the hosted Jira and Confluence distributed systems including high availability via HAProxy / nginx load balancing running in Docker.
• Wrote extensive documentation with diagrams and examples for both new and existing systems to future-proof important systems.
Clover Inc.Chief Technology Officer
Mar. 2014 - Jan. 2021Toronto, Ontario, Canada• Founding member of Mobile-focused Dating app for iOS and Android.
• Bootstrapped mobile application from MVP to App Store launch in three (3) months.
• Designed and deployed fault-tolerant, high availability CentOS-based systems infrastructure.
• Oversaw all application development and system reviews to maintain a sub-60ms API response time.
• Evaluated all Development designs to maximize performance and uptime prior to launch.
• Spearheaded the transition to a cloud-native architecture, reducing infrastructure costs by 30% and increasing system scalability to handle a tenfold increase in user traffic.
KeekChief Technology Officer
May. 2011 - Oct. 2013Toronto, Canada Area• Provided Technical Lead and Architecture Design of all project development for micro video startup.
• Oversaw all IT responsibilities including workstation set up, OS and application installation and Micosoft Exchange Server installation and management.
• Scaled infrastructure from one development server to a network of 500+ Dell blade servers across four (4) international Data Centers, accommodating over 65 million users and managing petabytes of data throughput.
• Lead the team through a multi-phase IT infrastructure redesign leveraging open-source technologies, resulting in capabilities to manage up to 250,000 concurrent connections while sustaining a response time of 65ms.
• Enhanced analytic data processing efficiency to handle over 10,000 records/second through integration with a highly available Cassandra database and strategic use of UDP collectors.
• Leveraged advanced cloud platforms and monitoring tools to streamline coordination among a team of 31, optimizing application performance and uptime metrics.
• Implemented VPN solutions to secure data transmission across the network of 500+ servers, achieving 99.98% reliability in international data protection over a 6-month period.
Polar MobileDirector of IT Operations
Jul. 2009 - Apr. 2011• Managed team of three (3) people - one (1) Senior Administrator and two (2) Application Developers to support the production environment.
• Directly managed existing systems running Microsoft Exchange and CentOS Linux, in addition to Amazon AWS / EC2 Cloud instances, and handled all internal IT needs.
• Designed and deployed new a load-balanced server infrastructure to transition existing systems to on-premises from Amazon Cloud, saving $75K a year in infrastructure costs.
• Created on-call process for Operations team using automated calendars and smart pager system to notify team members when on call.
• Added Cacti server to track and graph systems performance.
• Created a Wiki-based documentation system for all system processes, archive system settings and configuration files to allow all of Operations group to access and edit info as needed.
ZipLocalSenior Systems Administrator
Oct. 2008 - Jul. 2009Toronto, Ontario, Canada• Managed existing mixed Linux and Windows Small Business Server 2003 systems running MS Exchange 2003 onsite as well as remote co-location.
• Handled all internal office IT responsibilities including workstation set up, OS and application installation, Exchange Server and Blackberry Server management and troubleshooting.
• Designed and Installed new load-balanced Web Cluster to support redesign of the core application using HA Linux on Red Hat / CentOS.
• Set up MySQL server with replication redundancy and automatic failover capability.
• Created automated DNS management system.
• Added VPN server and KVM system to allow access to internal and co-located equipment from anywhere via SSL encrypted tunnel connections.
• Implemented new Email forwarding server to integrate with existing Exchange Mail to support spam and virus filtering as well as high-level email aliasing.
• Developed new Nagios Monitoring system allowing for easier management of monitored systems and to provide notifications via SMS.
• Added Cacti server to track and graph systems performance .
• Created a Wiki-based system to document all system processes and archive system settings and configuration files to allow all of Systems group to access and edit info.
• Consolidated existing equipment and services into single purpose machines and organized the sale of redundant equipment from the Toronto and Montreal offices, resulting in a net profit for the company as well as easier to manage systems.
• Provided Technical Lead and Architecture Design for new project developments.
Vintara SystemsSenior Systems Administrator
Apr. 2008 - Sep. 2008Toronto, Ontario, Canada• Managed and Configured preinstalled base of over 75 Intel-based servers running FreeBSD and Linux to provide web services to worldwide clients.
• Managed load balanced Web Clustering system via F5 BIG-IP load balancers.
• Designed and Implemented new MySQL database systems in a master-slave ring for high availability and backup capability, converting old systems to support new configuration with zero downtime.
• Provided Technical Lead and Architecture Design for new project developments.
• Installed and Maintained all server hardware.
• Implemented new Email System using exim mail server software and multiple Barracuda Spam Filters in a clustered arrangement to filter over 500,000 emails per day.
• Wrote system documentation in an online accessible format for use by all technical staff.
• Provided On Call support on a rotating schedule with automated pager notification via Nagios and BlackBerry service.
Instaclick Inc.Senior Systems Administrator / Team Lead
Nov. 1999 - Jan. 2008Toronto, Ontario, Canada• Oversaw growth of company systems from 12 employees on Intel and AMD x86 workstations running Windows 95 and Sun Solaris 8 Enterprise servers in local office to over 200 employees on Apple Mac workstations, 150 Apple Xserve and XRAID machines located in three offices in Toronto, Los Angeles and Jamaica.
• Senior member of 6 person IT Team.
• Provided technical lead and architectural design to support systems capable of serving over 50 million web hits per day and over 30 million registered users.
• Specified, Installed, implemented, and maintained a wide variety of Apache, lighttpd and squid web and cache servers, as well as Sendmail, qmail and postfix mail servers.
• Installed and maintained Cisco, Coyote Point and FreeBSD ipfw-based firewalls and routers.
• Installed and implemented distributed MySQL Database systems.
• Designed and implemented distributed monitoring and trend-graphing systems using Nagios, Cacti, MRTG and SNMP.
• Implemented automated Revision Control systems using CVS and Subversion for both Systems files and Developer code.
• Created FreeBSD-based development environment using virtual machine jails and private DNS servers.
• Configured and deployed remote storage system using SMB and Apple AFP file protocols.
• Set up remote office full-time VPN services using dedicated hardware, OpenVPN and m0n0wall.
• Original Database Administrator of MySQL-based authentication system, eventually handed off to dedicated DBA.
• Managed NetVault Backup solution using Exabyte LTO3 Tape Library and XRAID disk staging.
• Provided day-to-day server and end user support and troubleshooting including adding users and setting up mailboxes using Server Admin.
• Provided On Call support on a rotating schedule with automated pager notification via Nagios and qpage.
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