David Radmacher

Network and solutions architect based in Québec, Canada
Email / CV

🖥🎵 Interests

English: Native
French: Functional

20 years experience designing, managing and maintaining Cisco centric networks
Strong knowledge and experience with F5 BigIP ADC
Extensive experience with campus and data centre routing and switching technologies
Experience with IGP and EGP routing protocols like OSPF, EIGRP and BGP
Holistic technical knowledge and experience in multiple IT domains

Head of Networks and Solutions @ Columba Systems (2019 - Present)
IT Services Organization

Designed multi tenant Cisco SD-WAN solution providing isolation and controlled resource sharing
Designed and deployed a globally load balanced, containerized, open source web presentation platform
Provided guidance on multiple projects to bring them in line with organizational standards

Network Projects Engineer @ NZone Media (2014 - 2019)
Marketing and IT Services

Designed, deployed and maintained a global private content distribution network leveraging BGP AnyCast
Designed, deployed and maintained a global F5 BigIP ADC solution
Designed multiple highly available Cisco Nexus data centre networks across the globe, including disaster recovery sites
Worked with the Infrastructure team to design and deploy on-prem OpenStack private cloud across multiple geographic regions
Migrated WAN to Cisco iWAN in conjunction with the Network Operations team

Senior Network Administrator @ NZone Media (2009 - 2014)
Marketing and IT Services

Acted as a technical and team lead for a global network team
Deployed BGP based DDoS mitigation systems to handle massive attack volume
Designed and deployed multiple Cisco Nexus data centre networks
Migrated data centres from IOS to NXOS devices
Worked with Cisco’s UCS in addition to multiple other server platforms
Deployed Gigamon enterprise packet capture and analysis systems
Performed intrusion mitigation, isolation, and investigation on live systems
Deployed a globally managed Cisco wireless network
Managed multiple customer facing data centres across the globe with BGP multi-homing
Migrated existing MPLS WAN to a new service provider

Network Administrator @ Morris Mohawk Gaming Group (2007 - 2009)
B2B Organization Servicing the First Nations Gaming Industry

Deployed multiple DMVPN, SSL, site-to-site, and GET VPNs
Assisted in organization wide roll out of Palo Alto Firewalls
Implemented QoS in the network for VoIP and other services
Assisted in large scale VMWare ESX deployment
Created technical and non technical documentation for wide ranging audiences
Built monitoring systems for network and server equipment
Transitioned core firewalls from FWSM to ASA
Migrated network infrastructure from Point-to-Point serial links to MPLS network

Network Operations | Team Lead @ Government of Saskatchewan (2000 - 2007)

Architected and installed large capacity, highly available network for centralized IT government services
Deployed and maintained Windows and Unix based systems
Managed over 250 Cisco firewalls and associated VPNs
Managed multiple government department networks, including data centre, campus and MDS storage network

Web Developer and SysAdmin @ POP Montréal
Non Profit Music Festival in Montréal, Quebec

Provide network and system support for the POP Montréal office
Worked with POP Montréal to redesign their website
Built and maintained a high complexity Drupal system that integrated with multiple external partners
Performed performance tuning on the database and web front end to accommodate high volumes
Managed and maintained the Linux web server and underlying systems [MySQL, PHP, Apache]

Board Member POP Montréal (2016 - 2020)