Michael Walker Email & Phone Number

Santa Cruz, Ca, Us

Palo Alto, Ca, Us

Lead engineer responsible for design, build, and operations of Poly's global networks. The network infrastructure at Poly is extensive, dynamic and diverse, and there are significant design and build opportunities that keep things moving at a fast pace. Project overview:• Lead Engineer for two large-scale acquisitions: Tasks included reconciliation of IP address space, design of integrated WAN topology, standardization of routing protocols, unification of monitoring platforms and consolidation of ITSM systems. This project touched every aspect of network technology.• Transformed Poly’s global IPv4 address space. New template supports global regions, engineering functions, discrete business units, and security segmentation. Project included overlay and migration tasks for 60 locations.• Developed and deployed the company’s IPv6 network including global IP address plan, IGP and BGP routing and dedicated WAN backbone. Native IPv6 Internet egress and provider BGP connections were established at the edge, along with FW and perimeter security.• Lead engineer for global WAN replacement. This project required running concurrent providers with interconnects during migration and developing scripts for migrating sites in a live production network.• Co-authored and implemented WAN contingency plans to provide redundancy for WAN and Internet connectivity. WAN redundancy utilized BGP over Internet-based VPNs, and Internet redundancy used weighted BGP to send traffic to regional datacenters for egress.• Project-lead for global FW replacement, all steps from design and roll-out. Project included standardization and migration for security policies, application gateways and NGFW features on three vendor's platforms (Cisco/Checkpoint/Palo Alto).• Authored templates for all aspects of Poly’s global network including naming conventions, switch/router configurations, VLAN usage, QoS tiers, security templates, FW objects, AAA paradigms, and routing protocol standards.

Dunwoody, Ga, Us

Employee #5 in an 80-person company, this start-up was “agile” before Agile. Initially responsible for design, build, and operations of a nationwide WiFi network deployed at state and federal courthouses, the scope was expanded to include hosted video conferencing services and design/deployment of a QoS-enabled ISP infrastructure geared for private communications between law offices. This energetic environment was operated on tight budget with an emphasis on cost-effective performance.Project overview:• Responsible for technical direction within the company: Created and maintained technical standards and implemented all technical strategy. Led technical POCs and managed integration of new technologies.• Built and managed a nationwide Wi-Fi network: Redesigned and expanded a single site deployment to service 75 state and federal courthouses. Scalable deployment was structured to support multiple use-cases with simple templates that were easily implemented. • Built and maintained the company’s ISP offering: This service provided a private QoS-enabled network for voice and video conferencing services at major law firms. The design included the IP address scheme, WAN design, QoS and bandwidth management, and all equipment configs. Ancillary to the offering was rollout of IPAM and Network Monitoring tools (SolarWinds) and an ITSM platform (ZenDesk) for equipment tracking and problem resolution.• Developed failover and disaster recovery procedures: Built and maintained two redundant datacenter environments to support the WiFi and ISP infrastructure. Design included redundant, private carrier connections and routing to support active/active and failover configurations for both WiFi and ISP offerings. • High achiever in demanding environment: Steady promotions and increased responsibilities in a role that required significant adaptation and mastery of new technologies.

Miami, Florida, Us

A prototypical Y2K boomtown, Exodus Communications (later Cable and Wireless) provided network professional services to a variety of customers ranging from small dotcoms to large enterprise customers. In this environment, I performed all aspects of network design, build, training, support, documentation and presentations. Position required flexibility and open-minded approaches to a diverse customer base.Project Overview:• Managed network design and builds: Managed customer’s deployment from concept to build. Responsible for distilling requirements, determining scope and scale, equipment specification, budgeting, design, build, support and documentation for the largest Professional Services customers in Cable & Wireless’ southwest region.• Developed multiple templates for advanced enterprise network designs: IP address schema, remote access solutions, vendor/partner connectivity, LAN/WAN redundancy and DR options. These templates were adopted across the region saving time, streamline processes, and encouraging a consistent approach to engineering projects.• Drove business within the company: Generated significant revenue for Cable & Wireless by proposing additional projects and enhancements to customers. Gained credibility by completing these projects on-time and within budget and technical requirements.• Responsible for executive and technical presentations: Developed collateral and tailored exhibitions for various audiences. Able to distill and present complex topics in an approachable way.• Strong performer: Earned highest possible evaluations on annual reviews, led staff in billable hours for multiple quarters, maintained consulting engagement with the largest customer in the SW region. Multiple recognitions as a top performer from management and customers.

Minato-Ku, Tokyo, Jp

Responsible for multiple large-scale projects relating to the operation of Toshiba’s internal networks and WAN connections to their external vendors. Originally employed as a consultant to head-up an e-mail platform migration, I was hired as a Network Admin and promoted four times over three years with a corresponding increase in pay of 80%. Eventually promoted to the top position in the department.Project Overview:• Served as a senior member of a team that successfully completed a 10-month, 3 million dollar redesign of the Irvine, CA campus network. Project included everything from IDF construction to equipment configs. • Led a project team to redesign the Toshiba Manufacturing network. This high-profile project replaced network cores, distribution and access layers in a 24 x 7 environment that was intolerant of downtime.• Implemented a redesign of external vendor connections by creating new DMZs on existing CheckPoint FWs, developing a security policy for each vendor, and relocating their ingress. • Standardized and controlled routing protocols between LAN and WAN sites as well as external customers and implemented access control and anti-spoofing filters on edge devices.• Earned TAIS Performance Award (monetary award), 1998 -2000.