SUMMARY

• Over eleven years of experience in planning, design, implementation and support of mission critical IT Infrastructure projects.
• Experience as System administrator in Solaris Linux platforms with hands on experience in Oracle Solaris SPARC, x86, VMWare ESX/ESXi, Red Hat Linux Enterprise, SUSE, UBUNTU, OEL, HP - UX environment connected to SAN.
• Extensive experience in Datacenter migration and Disaster recovery projects.
• Excellent troubleshooting and problem-solving skills combined with superior communication skills.
• Strong technical background in hosting environments with a focus on high availability and scalability.

TECHNICAL SKILLS

Hardware: Experience with Enterprise Servers Sun (Oracle) M5000/M4000, Ultra 10K/15K/ 6500/4500/450/250 , Sun Fire 280R/V 480/4800/3800/12 K Server, Sun 4200/4250, Sun Enterprise 4600/6500/450/420 R/250 Servers, Ultra Enterprise 2/1 Servers, SPARC server 1000, SPARC server 20 Enterprise Servers, SPARC server 1000/20, SPARCstation 10, Sun Sparc Ultra 1,5,10, HP-9000 K, L, N series, HP C7000, IBM RS/6000 and pSeries. KVM switches, HP/IBM Blade Servers.

Operating Systems: Sun (Oracle) Solaris2.6, 7, 8, 9, 10, IBM AIX 5.2, 5.3, 6.1, HP-UX 11.2, Linux RHEL4.0, 5.0,6.0,7.0, Red Hat Satellite server 6.0, Linux Debian, SuSe 9, VMware ESX 3.0,4.0, VMware Virtual Centre, Windows NT4.0, 2000, 2003, 2008, 2012, Cent OS 6.5, 7, Ubuntu 14, 16.

Web Servers: Sun one Iplanet Server 6.0, Application Server 6.0, IBM HTTP Server, Apache, Microsoft IIS, Siteminder

Databases: Oracle 8.x, 9i, 10G/RAC, 11G/RAC, 11i ERP Oracle Financial, Postgresql 9.3, SQL2000, MySQL.

SAN Technologies: Disks Sun A5200 Disk Array, NetApp Celera, Centera, Switches Brocade 4900M.

Backup: Veritas Netbackup 8.0, Tivoli Storage Manager 6.2

Monitoring: HP Open View, Nagios, Splunk, Zabbix, snoop, tcpdump.

Networking: Subnet, TCP/IP, UDP, Cisco Routers and Switches.

AWS IaaS Cloud: EC2, S3, RDS, IAM, Storage Gateway, Glacier, CloudFront, OpsWorks

Virtual Softwares: Vmware, Vmware ESXi, Vmware converter, Oracle Virtualbox, Docker.

Automation Technologies: Puppet, Ansible.

Scripting: Shell scripting, Perl scripting.

Programming: C, C++, JAVA, Python

PROFESSIONAL EXPERIENCE

Confidential, Jersey City, NJ

Linux System Administrator

Responsibilities:

• Installed and configured VMware ESXi 6.5 on Oracle M5000 server as base. Created RHEL 7.0 and Solaris 10/11 virtual servers inside ESXi server.
• Created test labs running RHEL 7.0 virtual machines inside VMware ESXi 6.5 server.
• Installed and supported Apache Web Servers and Applications.
• Extensive experience using Linux command line (commands like grep, ssh, screen, ftp)
• Installed and configured Radis cluster in RHEL 7 servers.
• Installed RHEL 7 servers with kickstart configuration.
• Installed and configured ansible on RHEL 7 servers for automation.
• Upgraded kernel in RHEL 6 servers using ansible playbook.
• Installed and upgraded various applications on RHEL 7 servers using ansible automation technology.
• Installed and configured Red Hat High Availability cluster with Pacemaker in RHEL 7.0 servers.
• Installed and configured VMWare vCenter Server 5.5.
• Performed pre-migration checks on Servers running Solaris 8/10 and Red Hat Enterprise Linux 4/5/6.
• Installed and configured SAN storage on RHEL 6.0 servers.
• Gathered pre-migration data using Shell scripts for Solaris and Linux to handle Server Migration given time window.
• Created user accounts in RHEL, AIX and Solaris servers.
• Installed and configured HAProxy on RHEL 6.0 servers.
• Upgraded Solaris operating environment using Solaris Live Upgrade feature.
• Configured Zone cloning and Zone Migration across various Solaris SPARC and x86 servers.
• Configured Zones and Zones File system for resource Sharing in Solaris 10.
• Designing and deploying scalable, highly available, and fault tolerant systems on AWS.
• Configured NAT instance for internal servers within the private subnets thereby not exposing to the public internet.
• Installation and configuration of SUDO package accomplished successfully across various UNIX servers including RHEL 7.0, Solaris 10,11, AIX.
• Limited user account privileges using SUDOERS for UNIX servers.
• Wrote UNIX shell scripts using AWK, SED, cut and may other commands to format data.
• Created perl and python scripts to automates tasks.
• Configured iLOM on Oracle M5000 servers.
• Installed and configured MySQL, POSTGRESQL databases in RHEL 7 servers.
• Created postgresql databases on RHEL 7 servers.
• Installed Vmware vSphere client 6.5 on windows machine.
• Familiar with Cloudera Hadoop environment.
• Experience backing up servers using Veritas Netbackup.
• Created shell scripts to automate tasks on Linux servers.
• Responsible for day-to-day System Administration, troubleshooting for UNIX servers.
• Documented (formally) day to day processes and activities performed on UNIX servers as reference for other UNIX teams.
• Assisted team members in contracts, availability / problem resolution, technical Tier 1/2 support and security.
• Supported 24x7x365, high availability servers/database/SAN platforms located in both local & remote Data Centers across multiple time zones.

Environment: Sun (Oracle) X4600, M5000, T2000/T5220/T5140/T5240, IBM P570, P560, P520 For Linux/VMware/Windows DL580, DL380, BL680C, BL460C, SAN EMC Symmetrix/Clarion/Tivoli Backup, HBA Cards QLE2460, Lantronix SCS3205-for Terminal Consoles, Software: Sun (Oracle) Solaris10/11, IBM AIX 6.1, HACMP, Linux RHEL 5/6/7, ESX 6.5/5.5/5.1/4. x/3.x/2.x, Virtual Center 2.5, Satellite Server, Oracle RAC 10.2G, 11G.

Confidential, Redmond, WA

UNIX Administrator

Responsibilities:

• Experienced with installation and configuration of DOCKER containers in RHEL and Cent OS servers.
• Implemented projects with installation and configuration CNTDB, OAM, NAP Front End and QUE Servers.
• Installed new rpm Packages.
• Configured customized written Scripts to run in various levels using chkconfig.
• Detected newly installed Disk, configure using fdisk, and created / expanded File Systems.
• Resolved Network Problems in RedHat Linux servers.
• Patched Sun (Oracle) and Linux Servers.
• Fix Security vulnerabilities in Sun Solaris, and Linux.
• Installation of Apache web server carried out on Linux servers.
• Experienced in installing Puppet agents and pushing Manifests/Modules to 100+ Puppet clients.
• Responsible for large-scale Puppet implementation and maintenance. Puppet manifests creation, testing and implementation.
• Created/Configured NTP puppet module for nodes running on CentOS and Ubuntu distributions to ensure time synchronization between Master and Agent.
• Allocated Space and increased File Systems on Sun Solaris/ Linux.
• Launching Amazon EC2 Cloud Instances using Amazon Web Services (Linux/ Ubuntu) and Configuring launched instances with respect to specific applications.
• Hosted Enterprise web applications using AWS platform.
• Experience working with TCP/IP, HTTP, SNMP, FTP protocols.
• Remote administration of various Solaris servers carried out through PUTTY.
• Extensive experience in adding new users, deleting users as general Linux administration activity.
• Daily monitoring logs generated in Linux and Solaris servers.
• Experience working in agile work environment.
• Used Splunk and other log file/system information tools to troubleshoot and debug application issues.
• Managed issues related to Performance tuning, maintenance (upgrades, patching), monitoring (Nagios, Solarwinds and zabbix), system log management (SYSLOG), time/date management (NTP), and troubleshooting in enterprise class server environments.
• Installation of JAVA software carried out on Red Hat Linux Enterprise server.
• Upgrade Veritas File System Version and Disk Group Version.
• Working knowledge on client-server setup.
• Experience writing and compiling in JAVA and C programming language on Linux platform.
• Resolved issues of File system mounts as there was some error with /etc/vfstab while booting.
• Resolved issues with DNS, NIS, NFS and autofs.
• Provided immediate solution for service calls, incidents, and work orders.
• Performed change management functions like add, change, remove of existing and/or new server configurations according to change control policy and communicated these modifications to change management.
• Resolved ssh login issue.
• Created tables in MySQL databases using SQL on Linux test boxes.
• Troubleshooting networks with ping, traceroute commands.
• Configured NFS server for file storage and media files on Solaris server.
• Knowledge of scripts to collect Inventory of Servers, Patch Process Monitoring.

Environment: Sun (Oracle) X4200/X4600, M3000, T2000/T5220/T5140/T5240, Sun E250, Sun Blade 150, V490, V240, T1000, IBM P570, P560, P520 For Linux/VMware/Windows DL580, DL380, BL680C, BL460C, SAN EMC Symmetrix/Clarion/Tivoli Backup, Software: Sun (Oracle) Solaris10/11, IBM AIX 5.1, Linux RHEL 5/6, ESX 5.5/5.1/4.x/3.x/2.x, Virtual Center 2.5, Satellite Server, Veritas SF5.0/5.1.

Confidential, Kalamazoo, MI

UNIX Administrator

Responsibilities:

• Provided Level 3 UNIX support for more than 650 Delphi UNIX servers primarily running on HP-UX versions v10.20, v11.11, v11.21, v11,31, Sun Solaris v 5.8, v5.9, v5.10, Red Hat Linux Enterprise server v3, v4, v5 and IBM AIX v5.1, v5.3
• Carried out installation, Configuration and Administration of Solaris 10, HP-UX 11iv3 and Red Hat Linux Enterprise Operating Environments.
• Configured and administered more than 50 NIS servers.
• Provided solutions on various NIS and NFS issues.
• Provided solutions for various oracle database related issues.
• Successfully created login IDs on large number of servers.
• Carried out remote server management through Nortel networks VPN client.
• Modified kernel parameters in Solaris operating environment to increase performance of servers for client.
• Performed change management functions like add, change, remove of existing and/or new server configurations according to change control policy on behalf of HP and communicated these modifications to change management.
• Created detailed analysis reports for various RFC generated for management.
• Generated Root Cause Analysis reports on behalf of HP and submitted to client for application, server outages.
• Interacted with other teams for Hardware, software and application support.
• Carried out performance monitoring of various UNIX servers.
• Created and modified Perl scripts to add, delete user ID’s on large number of UNIX servers.
• Scheduled and carried out installation of Packages and patches on HP UX 11i, sun Solaris 10 servers in Delphi.
• Worked on backup tool like Veritas Netbackup.
• Supported 24/7 high availability production servers.
• Written small Shell and Perl Scripts for automation of job in UNIX environment.
• Installation of packages using RPM utility carried out in Red Hat Linux Enterprise 4 servers in scheduled windows in client’s environment.
• Installed and configured Solaris 10 OS on SUN SPARC M4000 enterprise servers.
• Installed and configured Red Hat Linux Enterprise Server 4, Cent OS 5.2 and Fedora 9 successfully in VMware server.
• Installed and configured Apache, Tomcat apache web servers on Red Hat Linux Enterprise server 4.
• Created and configured zones in Solaris 10. Performed installation and configuration of Apache, Tomcat web servers according to client’s policy. Troubleshooting carried out for these web servers.
• Responsible for administering the Web Servers and Application servers in UNIX environment.
• Installed and configured J2EE environment on sun Solaris 10 environment.
• Installed and configured apache web server 2.2.10, Tomcat 6.0 carried on Solaris 10 environments.
• Installed and configured Oracle 10g on sun Solaris 10 platform in servers.
• Performed detailed analysis of existing UNIX ID database across more than 2000 UNIX servers in UNIX environment.
• Participated in data modeling of UNIX ID project. Under this project, designed and implemented SQL tables in oracle 10g and Solaris 10 environment.
• Created databases in oracle 10g and loaded data into SQL tables in Solaris 10 platform.
• Created DBA user’s and granted appropriate rights in oracle 10g according to Delphi’s policy.
• Performed Oracle 10g database backup.
• Generated security audit reports for large number of UNIX servers and submitted to client.
• Generated system activity report using SAR on Solaris 10 servers.
• Worked with various system utilities like iostat, vmstat, SAR, top on various UNIX platforms.
• Created zones and installed WebLogic server 10 in sun Solaris 10 environment.
• Applied patches to different HP-UX servers in scheduled time frame.
• Performed disk and File system management through Veritas Volume Manager in Solaris 9 environment.
• Backed up servers through Veritas Netbackup in Delphi environment.
• Administered the NFS servers and clients in various versions of the Solaris OS.
• Arbitrated Customer/User meetings to establish needs define expectations and explain capabilities of current client environment.
• Participated conference call meetings with client (representing HP) and provided solutions.

Environment: Sun Systems: V210, V240, V440, V490, V690. IBM Systems: IBM p520, p650. HP Systems: RP3410, RP3440, RP4440, RP7420, RP7640, RP8420. ILO HP and HP Blades: DL360, DL365, DL380, DL385, DL580, DL585. Tape: IBM 3484 Tape Library Operating Systems: HP-UX 11iv3, 11.11 IBM AIX 5.3, 6.1 Red Hat AS 3, 4.0, 4.1 Sun Solaris 8, 9, 10 VMware ESX 3.0.1, 3.5, VMware Virtual Centre 2 HMC 3.3.7, 6.1.3, 7.3.4.1, 7.3.4.2.

Confidential

System Administrator

Responsibilities:

• Performed Solaris Operating Systems package installations, updates, patches and software fixes.
• Installed operating systems, patches, hardware, vendor software packages, system customization and documentation of all departmental UNIX, PC-based workstations and Terminal.
• Monitored system performances.
• Responsible for troubleshooting end user and application problems.
• Created User accounts and groups.
• Monitored system resources, logs, disk usage, scheduling backups and restoration.
• Set up Quotas for the user accounts & limiting the disk space usage.
• Creation/Configuration of Additional swap/tmp dynamically as and when required.
• Created users in Solaris environment and granted required permissions to them.
• Solving the problems as & when created when NFS data being accessed.
• Administration/Configuration of Print Servers/Clients in the network.
• Worked closely with database administration staff to ensure optimal performance of databases, and maintain development applications and databases.
• Assembled the systems and installing operating system and application software.
• Installed Operating Systems and Application Software.

Environment: Solaris 8, SCO UNIX5.x & Windows NT 4.0 / 2000, Ultra Enterprise 2/1 Servers, SPARC station 10, Sun Sparc Ultra 1.

Confidential

Network Engineer

Responsibilities:

• Installation, Configuration & Upgrade of operating systems Red Hat Linux and Windows 2000.
• Installation of patches and other software packages.
• Monitoring System performance and do kernel tuning to enhance the system Performance.
• Configuration of NFS on Solaris.
• Writing Shell scripts for system maintenance and automation of server.
• Backup management and recovery policies.
• Installation and configuration of Oracle (7.x/8.x/8i)
• Installation of Oracle Patches and Troubleshooting, Creating and modifying application related objects, Creating Profiles, Users, Roles and maintaining system security.
• Allocating system storage and planning future storage requirements, Database Backup and Recovery, Exporting and Importing Database, Creating Database triggers for security & data manipulation, using SQL* Loader for data transfer from flat files to oracle database.
• Trouble shooting of day to day system problems.
• Configuration and support of 46 servers in a mixed Windows 2000/NT 4 environment
• Built and administered database and web servers using SQL 7.0 / 2000 and IIS 4.0 / 5.0 in support of corporate production applications.
• Corporate rollouts/implementations of security related tools such as Symantec Antivirus CE.
• Evaluation of enterprise management applications such as Microsoft Operations Manager and Security Update Server.
• Documentation of server configurations and development of standardized build process and security auditing templates.
• Assisted in 2nd level support of user email and printer issues in Windows and UNIX environments

Environment: Solaris 8/7 & Windows NT 4.0 / 2000, SQL 7.0 / 2000, Oracle (7.x/8.x/8i), IIS 4.0 / 5.0, Symantec Antivirus.