SUMMARY:

Over 15+ years of experience in IT Industry - administration, architecture, designing, configuration, testing, troubleshooting, and supporting LAN/WLAN/WAN networking technologies with Cisco Routers/Switches/ Firewalls/Access Points, Linux and Windows Servers

TECHNICAL SKILLS:

LAN: Ethernet, Fast Ethernet, Gibabit Ethernet

Switching: VLANs, VTP, STP

Hardware: (LAN Switches) Cisco catalyst switches 3500 series, 3Com 3500, SuperStack 1100

Protocols: DHCP, DNS, Confidential

Data center and remote sites network infrastructure and servers support: Services DHCP, FTP, DNS, VPN, NAT, PROXY, MS Active Directory, MS Exchange, Proficient in planning and implementing IPv4 subnet, and IP management,Strong understanding of ICMP, ARP, UDP, TCP/IP, AODV, IEEE 802.11b, Strong understanding of Congestion Control algorithms, Troubleshooting for connectivity, speed and packet loss issues, Configuration and Implementation of NAT/PAT and policy based routing on the Network, Working experience with protocol analyzer Wireshark

WAN: Routing protocols RIP, IGRP, EIGRP, OSPF

Hardware: (Routers) Cisco 2600, 2500 series

RAD multiplexers: for E1 WAN links and E1- Ethernet

Experience in Frame: relay, HDLC, PPP layer 2 encapsulation

Security: Security access and authorization ACLs, firewall MS IIS, Confidential +, RADIUS, Working experience with port security and network security configuration through Cisco Confidential, Monitor system resources BigBrother, Monitor and troubleshoot with protocol analyzer / network traffic Etherpeek, Wireshark, Working experience configuring and monitoring WAN bandwidth with MRTG ( Confidential ), Install, Configure and update of Antivirus packages, Working experience configuring and installing IEEE 802.11 b/g/n/ac wireless LAN WiFi, Access Points, Cisco IOS code upgrade, Deploy new devices in the infrastructure environment, Good Trainer on basic/advance Networking technologies,Strong understanding of Simulation Discrete Network Simulator NS-2, Extensive experience in a customer facing role, Virtualization VMware and VirtualBox, Update software modules through TFTP service, Real time streaming protocol RTSP over TCP/IP, Network Attached Storage (NAS), Linux and Microsoft

Languages: Java, C, C++, Python, PyCharms, TCL, AWK, Unix shell, Latex, IDE Eclipse, GNUplot

Agile, Scrum methodologies: Data science, Machine Learning, Applied statistics, Classification, Regression, Designed Experiments, R, JMP, Octave

Extensive training experience: Strong research capabilities

PROFESSIONAL EXPERIENCE:

Confidential

Sr. Storage/Network Engineer

Responsibilities:

• Hands-on experience in datacenter environment
• Install hardware and media for datacenter servers TCP/IP availability
• Configure IP addressing and secure access (SSL) using AIX Unix command line environment
• Install new software modules in datacenter servers through TFTP service
• Install and configure Confidential 8GB Fiber Channel Fiber Optic ( Confidential ) Switches
• Install and configure 10/100/1000 switches and PoE switches
• Update Network port configurations in datacenter servers to provide secure access
• Configure dual Fiber Optic cards for highest speed Network communication between servers
• Configure real time streaming protocol RTSP over TCP/IP for camera access and for dynamically change the camera configuration
• Design and configure a Network Attached Storage NAS for storing and sharing of files
• Extensive use of the AIX System Management Interface Tool (SMIT)
• Monitor the datacenter servers cache utilization and health
• Develop a video player to study thermo pictures in real time and develop a snap shots taker (Python) to store the thermo pictures locally (16 bits resolution, RAW format)
• Test the performance of I/O operation in datacenter servers of high storage capacity ( Confidential cache TS7720T and virtual storage devices Confidential TS3500 Tape Library)
• Execute Functional and Systems validation
• Supports - LAN and Network engineering (Lab, Office LAN)
• Find and reported defects in software and hardware and expose defects and problems in phone meetings
• Publish defects and updates in triage for technical groups

Confidential

Sr. Network Engineer

Responsibilities:

• Configuring & troubleshooting of Desktop/Laptops
• Configuring & troubleshooting of printer, scanner & LAN related issues
• Configure TCP/IP in unix VxWorks and Windows 7
• Extensively used TCP/IP tool like Confidential for remote login and SSH for secure login
• Configuring Ipv4 addressing for client to ASIC communication and commands
• Install and configure VmWare for remote access control
• Develop software (C) and improve inherited software embedded for an ASIC device for avionics (VxWorks)
• Test the performance of I/O operations on flash memory
• Debug, test and modify XML scripts to test Confidential INC 664 Network communications protocol in avionics components
• Collaborate with cross-functional teams, external and internal stakeholders and business partners
• Extensive experience with Agile Software Development Methodology, Lean/Six Sigma Certification
• Extensive use of Git, Dimensions for software versioning, and Rally, Doors for documentation

Confidential, Tempe, AZ

Network Consultant

Responsibilities:

• Study and implementation of complex Networks particularly Mobile Ad-hoc Networks MANETs
• Configure, use and strong knowledge of wireless protocol IEEE 802.11/b in MANET
• Use and strong understanding of TCP/IP, UDP, MAC, Discrete Network Simulator NS-2, TCP Congestion Network, Wireless routing protocols e.g., AODV, DSRP, voice sampling for transmission over IP Networks, Encapsulation, access methods CSMA/CD/CA, RTS/CTS, (FDMA, TDMA, CDMA), IEEE 802.11 MAC contention, Packet loss, FEC strength, Physical Tx-Rx propagation
• Strong understanding of OSI and TCP model and across-layers interactions, Mobile, Energy, Propagation and Error models affecting wireless
• Extensive experience computing TCP Troughput analysis and modelling
• Perform Layer 1/2/3 troubleshooting on LAN, debugging network connectivity and configuration issues
• Maintenance and Troubleshooting of LAN connectivity problems using Ping, Trace route
• Configuring & troubleshooting of Desktop/Laptops, printer, scanner & related issues
• Install and configure NoMachine for remote desktop connection
• Install and configure Oracle VM VirtualBox linux Ubuntu, Fedora and Windows 7 desktop clients
• Experience with Mean Opinion Score (MOS) and Perceptual Evaluation of Speech Quality (PESQ) for voice quality.
• Red Hat server administration

Confidential, Chandler, AZ

Network Engineer

Responsibilities:

• Test the performance response of servers using solid state storage devices (SSD) functioning as cache device
• Characterize workloads emulating several clients - one server architecture in Network File System ( Confidential ) in Linux
• Install and configure an emulation environment formed by several Oracle VM VirtualBox Linux Ubuntu and Fedora desktop clients and one Red Hat server
• Install and configure NoMachine remote desktop connection
• Add the emulation environment to the current KVM virtualization hardware
• Configure Network File System ( Confidential ) and IP addressing for TCP/IP network communication
• Configure a SSD volume in different file systems, sucha as: Ext3, Ext4, JFS and FAT by the server side for cache operations (using FS-Cache)
• Characterize workloads using NetPerf and FileBench to test the cache server response and measure the performance in the Network
• Capture network trafic using TCP Dump
• Prepare Bencharmk of the results for customer presentation

Confidential

Network Engineer

Responsibilities:

• Teach courses to undergraduate students and industry staff on Confidential, operating systems, and programming
• 20% from the total students passed Confidential exam
• Administer DNS, DHCP and the IP addressing
• Provide support in monitoring 3Com and Cisco switches
• Network infrastructure support to routing and switching equipment
• Provide support to Back up Cisco IOS to a TFTP, upgrade and restore Cisco IOS from TFTP server
• Troubleshoot and resolved Ethernet issues: monitor traffic, detect malicious traffic, patch servers
• Troubleshoot Confidential issues: denied ports, allowed subnetworks
• Use Microsoft Visio to document network design

Confidential

Network Engineer

Responsibilities:

• Training on Confidential topics to technical and administrative staff
• Provide on-site consulting/support in Networking infrastructure for data center
• Provide consulting/support on reviewing different network proposal from various vendors
• Basic configuration of VLAN setup on Cisco 2950 switches
• Provide training on monitoring network traffic/protocols using Wireshark

Confidential

Network Engineer

Responsibilities:

• In charge of a Datacenter including 20+ Linux and Microsoft servers, LAN/WiFi/WAN and 5 remote sites of the University campus in the North West of Mexico
• Administration, architecture, engineering and troubleshooting tasks for the core-network and branch locations
• Configuration of the WAN including routing protocols, security and E1 WAN links and E1- Ethernet
• Build and develop strong relationships with end-users by providing reliable customer support
• Evaluate and configure network equipment for the LAN and also in the 5 remote branches sites
• Speed local desktop connection increased from 10 to 1000
• Design, configure and maintain non-Cisco wireless network
• WLAN covered 80% in the University campus, complaints related to failures in network infrastructure and network services dropped down to 5%, network security was improved
• Network prepared for scaling and focused for business productivity
• Data, voice and video networks were neatly implemented and documented
• Document network design in detail using Visio
• Physical network:
• Design physical network and installed 500+ FastEthernet network nodes
• Design and installed intrabuildings 24 fiber optic cable terminated in LIU enclosures per site
• Document detailed network infrastructure and configurations
• Design and install video and telephone media
• Network services:
• Configure and monitor servers in a data center and remote sites (linux Red Hat, AIX and MS Windows 2003)
• Configure and administer network services DHCP, FTP, DNS, VPN, NAT, PROXY and MS Active Directory
• Configure and administer Confidential +
• Configure initial setting of 3Com Total Control and configuration of RADIUS for remote access, authentication and authorization
• Basic MS Microsoft Exchange a dministration
• Installing, Configuring and updating of Antivirus packages
• Network LAN/WAN:
• Design the public and private IPv4 subnetting for the local LAN and for the 5 remote sites
• Configure the Cisco catalyst switches 3500 series
• Configure RAD multiplexers for Channelized E1 WAN links and E1- Ethernet
• Implement the Routing protocols (EIGRP, OSPF) Cisco routers 2500, 2600 series
• Configure Firewall IPv4 access rules ( Confidential )
• Configure and administered VLANs using switch 3Com 3500
• Upgrade the IOS for the Network infrastructure on needed basis
• Knowledge of Frame relay, HDCL, PPP encapsulation
• Monitoring:
• Configure MRTG ( Confidential ) for bandwidth monitoring, construct one HTML web page including all posible routers
• Configure BigBrother for server usage
• Implement network protocols traffic analizer using Etherpeek, Ethereal, Wireshark, and web traffic

Confidential

Network Engineer

Responsibilities:

• Analysis of network requirements, IT consulting
• Review and recommend modifications to physical network infrastructure, including cable media
• Troubleshooting and supporting LAN / Server & Workstation
• Install, test, maintain, and operate LAN hub and switching equipment in internal networks
• Perform system administration functions on all switching or hub platforms
• Recommendation in purchasing network equipment
• Review of media installed (cabling and sites)
• Deployment of security procedures and guidelines, such as: antivirus, installed software permission, scheduling Backups

Confidential

Network Engineer

Responsibilities:

• Design and configure WAN links for data and VoIP communications for central site and 4 remote distributed offices
• Important savings on reduced long distance calls
• Increased sales by reliable data shared among remote branches offices
• Install, test, maintain, and operate LAN hub and switching equipment in internal networks
• Perform system administration functions on all switching or hub platforms
• Recommend placement and configuration of LAN hub and switching equipment
• Administer IPv4 address space and Domain Name Registration
• Configure, optimize and maintain WAN protocol EIGRP
• Monitor network WAN bandwidth using MRTG ( Confidential )
• Maintain network design documentation in detail

Confidential

Network Engineer

Responsibilities:

• Hands-on experience in responding, tracking, and following up to telephone end user requests for support
• Network migration from hubs to switches for a Confidential institution
• Network media migration to support speed up to 10Mbps
• Improve Telephone network
• Configure private WAN Link for a data/voice mux
• Coordinate IT/Telecom infrastructure for a 200+ Retailer employees
• Develop a custom-made system (C++) for inventory and billing control for an automotive retailer
• A catalog of automotive parts from a vendor was integrated and the inventory was improved
• Develop an accounts receivable software (4GL) for a Department store
• Develop an inventory system (4GL) for a manufacturing company