David Radmacher
Network and solutions architect based in Québec, Canada
Email / CV
🖥🎵 Interests
- Web presentation technologies
- The transition of physical data centre networks into the cloud
- Software Defined Networks - WAN and DC/Cloud Fabric
- Security and privacy technologies
- Cloud infrastructure
- Infrastructure as Code and network automation
- Music of all kinds
🎓 Education
- Bachelor of Science, Computer Science - University of Regina
- Cisco SD-WAN Operation and Deployment (ENSDW) v1.0
- Checkpoint VPN - 1 / Firewall-1 NG Management 1 & 2
- Cisco ICND [Interconnecting Cisco Network Devices]
- Cisco BCMSN [Building Cisco Multilayer Switched Networks]
- Cisco BSCI [Building Scalable Cisco Internetworks]
- Cisco CWENT/VMS [Implementing CiscoWorks for LAN/WAN]
- Cisco ICSNS [Implementing Cisco Storage Networking Solutions]
- Cisco QOS [Implementing Cisco Quality of Service]
- Cisco Secure PIX Firewall Fundamentals
- Cisco Secure PIX Firewall Advanced
- Nokia IP Firewall
✅ Certifications
- ITIL Foundations
- Google Cloud Certified - Associate Cloud Engineer
- Google Cloud Certified - Professional Cloud Architect
- CKA - Certified Kubernetes Administrator
💬 Languages
English: Native
French: Functional
🧰 Skills
- 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
👨💻 Experience
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
📌 Side Projects
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]
🤝 Volunteer Work
Board Member POP Montréal (2016 - 2020)