Nathan Holtz Email & Phone Number

Bellevue, Washington, Us

I am responsible for designing, installing, supporting and maintaining network services and infrastructure. I am also responsible for network performance, solving technical issues, updating job knowledge, ensuring network security, managing firewall changes, and providing service desk support for escalations.As a Sr Network Engineer, I work within Information Technology (IT), collaborate with Information Security, Facilities, other departments, and vendors to plan, design, implement and oversee all network services including virtual private networking (VPN), firewalls, Internet circuits, wireless, network routing and switching across all TPCi sites.As a member of the IT Infrastructure team, I focus on the availability, reliability, capacity, and quality of these services using tools such as ThousandEyes, ExtraHop, Solarwinds and Sumo Logic.

Bellevue, Washington, Us

Mumbai, Maharashtra, In

In addition to my engineering role, my responsibilities expanded to take point on projects and assist other engineers as a point of escalation to ensure success deployments and that SLA are met. I am responsible for project planning and implementation of end of life/sale (EoL/EoS ) equipment, carrier circuit migrations and move/add/change projects. I was given the opportunity to create and implement a testing framework for successful changes to ensure quality standards and SLAs are being met. Lead peer review meetings to verify that configurations, design and implementation processes meet customer standards. Train and field questions for fellow engineers on all tasks related to customer corporate and lab infrastructure and deployments. • Enterprise router/switch/WLC hardware configuration and deployment.• L3 routing OSPF, IS-IS, BGP, CMPLS• L2 switching, VLAN configuration• Wireless controller, L2 aggregate and WAP.• Bill of materials (BOM) creation.• Network subnet creation and reservation.• Visio network design creation.• MOP creation and deployment.• DHCP scope creation.• Interacting with site IT Managers and site services support for deployments.• Running device compliance reports and resolving respective bugs.• Present changes to Network Design Review (NDR) and Change Advisory Board (CAB). Common equipment deployed:• Cisco ASR 1001-X, 9001, 9006 Routers• Cisco Catalyst 4506-E, 4500-X, 3850, 3650 Switches• Cisco AIR-CT5520, 5508 Wireless Controllers

Bellevue, Washington, Us

This role transitioned vendors from Prowess to TCS (above). Designed, configured and implemented Microsoft enterprise networks and devices through Move/Add/Changes • Design and deploy enterprise building wired and wireless networks.• Create and design as-built drawings for Change Review Board presentation and documentation.• Configure and deploy Cisco, HP and Aruba network equipment.• Facilitate and provide support for lab teams in network builds and migrations.• Full understating and use of networking tools including custom enterprise DNS management tools. Common equipment deployed:• Cisco ASR 1001-X, 9001, 9006 Routers• Cisco Catalyst 4506-E, 4500-X, 3850, 3650 Switches• Cisco AIR-CT5520, 5508 Wireless Controllers• Aruba 7220 Wireless Controllers• Aruba 2400E switches• HP Procurve switches

Bellevue, Washington, Us

Operations engineer at the Microsoft Partner Solutions Center (MPSC) specializing in virtualization. Showcased cutting edge equipment and concepts and well as prepped, configured and deployed training facilities and the Executive Briefing Center. Oversaw development of Microsoft GO; an on demand VM based hosting platform running in Windows Azure that provided demos, hosted training and prebuilt test environments. Successfully condensed a vast server farm to Cisco USC to host and support private cloud customer systems. • Created and deployed Private Cloud environments for proof of concept compute, network and storage solutions.• Top to bottom support and management of the MPSC networks and hosted cloud development labs.• Designed and managed an on premises hosted cloud virtualization infrastructure utilizing Windows Server running on Cisco UCS.• Deployed Microsoft System Center, DHCP, WSUS, SQL and Azure pilots.• Configured and utilized various SAN solutions from X-IO, EMC, IBM, NetApp and HP.

Munich, De

Ensured safety and security through upgrades, patches and live software deployments to all 94 Siemens branded companies. Setup and configured new customers for Release Management related services and support on a Configuresoft ECM platform. Install new Configuresoft ECM rollouts from the ground up to a working steady state status. Provide continual ECM support and maintenance for existing rollouts. Part of a team that provides 95%+ completion of thousands of Windows servers monthly patching and new releases. Work with both application and server owners to maintain quick and reliable maintenance to critical servers • Provided ITIL based Release Management support for both internal and external Siemens companies.• Conducted release management services via Configuresoft ECM, Microsoft WSUS, and Wamu Flow.• Installed, configured and maintained IIS, ASP, SQL, WSUS, .NET and Configuresoft ECM.• Provided tools support for monthly client patching infrastructure as well as patching duties.

Munich, De

• Provided constant availability support for server and network systems on Siemens customer accounts.• Performed LAN, WAN and system monitoring and support.• Designed and improved process flow to increase productivity and decrease customer downtime.• Fluent in the Clarify Ticketing system and augmented Micromuse Netcool knowledge.• Operated within and met SLA deadlines for ‘best practices’ functionality.

• Monitored and supported the corporate WAN infrastructure and application server farms.• Proficient in enterprise solutions: Micromuse Netcool, Computer Associates Unicenter TNG, Remedy, Peregrine SC and McAfee Help Desk.• Prevented transaction downtime through mainframe monitoring using Allen Systems Group TMON for Customer Information Control Systems (CICS).• Wrote and configured Remedy macros for improved process flow and decreased chance of errors.• Co-wrote interdepartmental process flow between the Enterprise Monitoring Operations and Enterprise Incident Management groups.