SUMMARY

• 3+ years of professional experience in Network/Linux engineering with Cisco Certified Network Engineer, performing Network analysis, design, Implementing, capacity planning with a focus on performance tuning and support of large Networks.
• Involved in troubleshooting of DNS, DHCP and other IP conflict problems.
• Experience in Linux Administration Installation, Configuration, Tuning and Upgrades of Linux (RedHat and Oracle).
• Worked on cloud - based servers like AWS and AZURE.
• Troubleshooting skills with network protocols such as DNS, TCP/IP, SMTP & SNMP.
• Hands on experience with ticketing tools such as Remedy, BMC service desk express and Quick base.
• Administration of networking devices such as Routers and switches.
• Expert level knowledge on OSI model and TCP/IP protocol suite

TECHNICAL SKILLS

Protocols: TCP/IP, UDP, IPv4/v6, SNMP, SMPT, HTTP, FTP, telnet, SSH, IPSec, L2TP, SSL, RADIUS, VPN, HTTPS.

Operating Systems: RHEL 6.0/5.0, SUSE Linux SLES 9/10/11, AIX 5.3/6.1/7.1 and SUN Solaris 9/10, Windows Server (2003, 2008 R2, 2012)

Tools: Ansible, Puppet, Waterfall, Agile, Nagios, Tivoli Store Manager, Vormetric, Veritas Backup.

Web /Application Server: Apache Tomcat, WebSphere, WebLogic.

Version Control: Git, Subversion.

Container Technologies: Docker, Kubernetes.

Virtualization: VMware, VCAC, VCenter, XEN, Nutanix (Hyperconvergence).

Hardware: IBM, Dell (PowerEdge), Lenovo and HP.

PROFESSIONAL EXPERIENCE

Confidential, Bentonville, Arkansas

Network Engineer

Responsibilities:

• Provide system support for 6000+ servers of SUSE 10/11, Solaris 9/10 and Redhat Linux 6/7 including routine maintenance, patching, and system backups and restores, and software and hardware upgrades.
• Supporting VMware vSphere 5.x and vSphere 6.0 (ESXi 5.5, ESXi6.0, vCenter 5.x and 6.0, vSphere update manger, VMware standalone convertor 6.0.
• Experience with working on ServiceNow to manage Incidents and Requests based on the priority..
• Configured and deployed patches, upgrades, bug fixes on both physical and virtual Red Hat Linux servers using Satellite server.
• Providing technical support and enterprise SAN and storage solutions.
• Handling L2 Unix issues and generating tickets via the ServiceNow tool.
• Worked closely with the SAN team to provision and configure SAN storage on Linux servers and provide appropriate access to groups and users. Also, worked on SAN cross server migration.
• Implemented enterprise system monitoring using Nagios. Wrote many custom checkpoints.
• Troubleshoot network issues (TCP/IP, HTTP, SSH, DNS) to internal and external customer
• Created policies, standards, guidelines and security awareness campaigns for associates to follow related to IT Security and protecting corporate assets.
• Configured resources such as packages, services, files, directories, notifying users and groups, setting up Cron jobs using Puppet.
• Configure, maintain and administer Linux / UNIX operating systems and components. Diagnosed and resolved problems associated with DNS, DHCP, VPN, and NFS.

Confidential, Plainsboro, NJ

Network Administrator

Responsibilities:

• Build virtual Linux server and Windows server using VMWare and Xen when needed for testing.
• Managed Red Hat Linux and VMware ESX servers.
• Configured LVM (Logical Volume Manager) to manage volume group, logical and physical partitions and importing new physical volumes.
• Worked on infrastructure with Docker containerization.
• Scheduled jobs and automating processes using CRON.
• Used Shell scripts to automate the deployment process.
• Experience working with RedHat Satellite to manage subscription, repositories, errata and patches for the RedHat Linux servers.
• Performance Monitoring and Performance Tuning using Top, prstat, SAR, vmstat, ps, iostat etc.
• Experience working with RedHat Satellite to manage subscription, repositories, errata and patches for the RedHat Linux servers.
• Monitored and analyzed mission critical systems utilizing different system and application monitoring tools.
• Researched and analyzed new malware incidents relating to Enterprise threats.

Confidential

Network Administrator

Responsibilities:

• Provided support for Windows Servers running on physical and virtual (VMware) infrastructure in-clustered and non-clustered setups.
• Worked on managing system level, global and local config files for Git configurations.
• Installation, Management, Configuration of LAN/WAN systems utilizing Cisco switches and routers
• Recommended design changes for network systems that included router, switch, and firewall configuration.
• Remote monitoring and management of server hardware.
• Investigate potential or actual security violations or incidents to identify issues and areas that require new security measures or policy changes.
• Identified and evaluated potential threats and vulnerabilities. included patches, fixes, upgrades, and changes to the environment as needed.
• Maintained Virtual Hyper-V infrastructure spanning all three environments. Multiple Hyper-V hosts for capacity and redundancy, utilizing NIC teaming and VLan trunks for network redundancy.
• Installed and configured various services like DNS, DHCP, NFS, Apache Web Server, Samba and SSH

Confidential

Network Administrator

Responsibilities:

• The configuration of routing and switching equipment.
• Monitored system performance using top, ps, netstat, vmstat and cpuinfo to check CPU utilization, network traffic and memory usage.
• Supported SAN, NAS, Fiber Channel, LUNS, LVM.
• Troubleshoot network connectivity, routing, IP, Peering, security, and utilization issues.
• Experience with managing Virtual memory and Swap memory to make sure the application is having no down time.
• The basic configuration of firewalls. Remote support of on-site engineers and end users/customers during installation.
• Monitoring network engineering performance and ensure system availability and reliability.
• Successfully engineered VPN connectivity for the network. This included both remote access VPN and site to site VPN.