Senior Network Engineer Resume
San Antonio, TX
OBJECTIVE:
A position as a team lead or senior network engineer .
SUMMARY:
- More than 15 years working across various industry segments with diverse teams and large enterprise level network systems including routing, switching, wireless, VOIP, firewalls, security, etc.
- A candidate with a proven track record of delivering an optimal balance of strong technical skills plus management and interpersonal skills.
- A desire to achieve excellence in customer service and transparency for all sides.
- Exhibits strong ownership mentality, initiative, responsibility and dependability with a can - do attitude.
- A team player who can easily create synergy with and work with diverse groups of people at every level of an organization.
TECHNICAL SKILLS:
Firewalls: Cisco ASA series from 5505 to 5555.
Routers: Cisco ISR/ASR series from 2900 to ASR1000.
Switches: Cisco 4500, Cisco 3750, Cisco 3850, Nexus 5K, Nexus 7K.
Security: 802.1x Port security, Access-lists, syslogging, physical controls.
IPS: Cisco 4200, FireEye 4400-HX, 7400-NX.
Wireless: Cisco 1100, 2600 and 3700 series access-points, Cisco 2500, 4400, 5500 & 5760 series Wireless LAN Controllers.
Voice: Cisco Call Manager & Unity 4.X - 9.X. Various endpoints from 7000 - 9000 series Cisco phones & ATA units.
Load Balancers: F5-Big IP, A10
Virtualization: VMWare ESXi 5.X
Services: DNS, DHCP, TACACS, RADIUS, SNMP, SSH, Active Directory, Multicast, Okta Identity
Protocols: VTP, Spanning-Tree, EIGRP, OSPF, BGP, CDP, HSRP, GLBP, LACP
Operating Systems: Windows Server 2012, Red Hat Linux, Windows Desktop (XP, 7,8,10)
Tools: Solarwinds Orion, Solarwinds Engineering toolset, NMAP, Netstumbler, IP Subnet scanner, Wireshark
Applications: SNOW Service desk ticket system, Cisco ACS, Cisco WCS, Zscaler Cloud proxy
EXPERIENCE:
Confidential, San Antonio, TX
Senior Network Engineer
Responsibilities:
- Assigned as needed to assist customers on - site with installation and configuration of new gear such as routers, switches, VoIP, etc.
- May also be assigned for staff augmentation at various customer sites.
Confidential, San Antonio, TX
Senior Cloud Network & Security Engineer
Responsibilities:
- Worked on the cloud network team which was focused on multi - tenant customer cloud implementations and operations.
- Our main customer focus was small to mid size hospitals that did not have the staff, expertise, budget, or on-site capacity for running virtual server environments, VDI environments, and manage communications to 3rd party vendors. We also assumed the liability for HIPPA compliance and auditing.
- Helped manage and expand network infrastructure capabilities in CloudWave s Co-Lo datacenters.
- Worked closely with project managers and customers alike to implement, troubleshoot and maintain connectivity from the customer site to the cloud.
- Was responsible for ensuring secure communications from routers at the customer site to the customer environment at the datacenter.
- Worked closely with partner companies like Meditech to install and ensure proper communication from them to a client hospital s lab instruments and Electronic Medical Records systems.
- Used a combination of VTI tunnels and Internet access to facilitate communications between end users and the cloud. Normally used redundant ISR routers at the customer sites which terminated on
- VTI tunnels on ASR 1000 series head-end routers at the datacenter.
- The remote site routers usually employed HSRP and embedded scripts to make intelligent decisions concerning failover in the event the primary router suffered from LAN or WAN communications issues.
- Employed VRF s and route leaking to isolate customer environment: s and allow only the required communications between the customer environments and management environments.
- Employed ASA series 5540 and 5555 firewalls.
- Employed Nexus 5000 and 2000 series switches and fabric extenders.
- Maintained redundant Internet and core routers for customer and intra datacenter communications. Interfaced with various ISP using BGP.
Confidential, San Antonio, TX
Network Operations - LAN/WAN Manager
Responsibilities:
- Managed a team of six senior level network engineers in a 24X7X365 high tempo environment and was responsible for all LAN,WAN, firewall and F5 load - balancer systems.
- Took over management of the group from consultants (Comsol) who were brought in for interim management and network stability assistance. A hands on technical manager was required for this position to assist in daily operations and work closely with team members.
- Increased staff on the team and mentored team members in various technologies such as Cisco Nexus switch and Cisco firewall management.
- Continued with efforts to remediate many of the stability issues that have historically existed in the company networks.
- Helped break down some of the historical barriers and culture of distrust that existed amongst the network group and other groups in IT.
- Maintained network connectivity between HQ and 5 large call center sites and approximately 50 remote sites. Also assisted in connecting some large offshore partner call centers.
- Operated Cisco firewall and IDS systems for perimeter defense and a mixture of Zscaler and Ironport proxy systems for web filtering.
- Worked closely with change management to ensure changes were as well planned and successful as possible and approved and executed in a reasonable amount of time.
- Participated in incident review board to provide root cause analysis for incidents and help the incident manager compile accurate statistics for weekly reports.
- One of the initial managers selected to participate in the new Manager On Duty (MOD) program to provide better incident visibility
- And transparency to owners and upper management as well as authority to set SEV levels for major incidents impacting the company (not just network incidents).
- Coordinate the resources from various groups to resolve the issue and notify upper management and owners along the way until a resolution was achieved.
- Wrote final root cause analysis for all major IT incidents while on MOD rotation week.
- Coordinated network centric responses to numerous compliance requests from our compliance department on behalf of our customers and partners, such as PCI compliance requests.
- Reviewed, coordinated and approved network change requests.
- Participated with business units when scoping new business acquisitions to determine network capacity and security requirements.
- Oversaw infrastructure upgrade projects like POE switch upgradeswireless rollout, firewall and IDS replacements.
Confidential, Houston, TX
Lead Sr. Network Engineer
Responsibilities:
- Team responsible for all voice, data, and web - filtering services for
- Chosen to represent the North American region on the corporate global Shared Services Organization (SSO) networking team.
- Collaborate with colleagues around the world on corporate network projects and standards and facilitate follow-the-sun support.
- Manage WAN circuits for internet connections and remote site connectivity from providers such as Verizon, AT&T, Abovenet/Zayo, TWT.
- Manage core datacenter routing & switching using Cisco Nexus 70005000, and 2000 series datacenter switches.
- Manage MPLS networks using AT&T and Verizon circuits using a combination of the following routers: Cisco 2800, 2900, 3800, 7200ASR1001.
- Run and am familiar with routing protocols such as EIGRP, BGP, etc.
- Senior admin for North America VOIP infrastructure running Cisco
- Call Manger/Unity Connection 8.5 in a VMware environment.
- Manage LAN switching infrastructure using a combination of Cisco switch models 6500, 4500, 3750, 3560, 2960, etc.
- Manage wireless LAN wireless network consisting of Cisco 1142 and 2602 LWAP access points and 2500, 4400, 5500 & 5760 Wireless LAN Controllers. Also used WCS and now Cisco PRIME Management suite to manage the system.
- Utilize Solarwinds Orion system to monitor network devices and back up network device configs.
- Manage legacy ASA5500 and new ASA5500X series firewalls for external security as well as LAN to LAN VPN, remote user IPSEC VPN access, AnyConnect VPN access, web-server access hosted from a DMZ, etc.
- Operate Cisco UCS210 servers in a VMware/ ESXi 5.5 environment used to host VMs for the Call Manger system and other apps.
- Work with IT project managers to scope and specify communications and hardware requirements for upcoming project sites to be rolled out.
- Network team member assigned to the TP North America DR team that will deploy to Claremont, CA office in the event the Houston datacenter needs to shut down during a disaster.
- Chosen to represent North America on the global DNS team of 4 people that are authorized to Perform DNS changes for Technip.comGenesisoilandgas.com and other affiliated domains. Use Linux servers running BIND.
- Chosen to represent North America on the global SMTP gateway team of 4 people that are authorized to manage issues on the corporate mail servers. Run Sophos mail filtering application.
- Cloud computing initiatives involving a direct connect to Amazon/AWS on a Zayo circuit.
Confidential, HOUSTON, TX
SR. WAN/LAN Network Engineer
Responsibilities:
- ·Provide co-location space and Internet bandwidth offerings to a diverse array of clients.
- Also provide network support to clients who do not maintain their own full time network staff, or wish to augment their own staff on a per hour consulting basis.
- ·Part of the Network Services team that manages both internal Cyrus
- One network as well as customer Internet bandwidth services.
- ·Provide managed services for client network devices and consulting to clients for routing, switching and firewall needs, including setupmanagement, and troubleshooting. We provide 24X7 monitoring and support for managed devices.
- ·Work often with BGP routing, L2 and L3 switching, and Cisco PIX firewalls, VPN connections, etc.
- With a heavy emphasis on firewalls.
