Ravi Kumar Bulusu

Phone: +1-516-***-****

Email: adzcsc@r.postjobfree.com

Professional Summary:

Over 18+ Years of Experience in Windows/UNIX/LINUX Systems and Network administration for Windows NT 4.0, Windows 2000/03, Linux RedHat RHEL 6,7,8, HP UX 11.x, Sun Solaris 7,8,, CentOS,

Experience in installation, configuration file system management through Logical Volume Manager LVM, VERITAS Volume Manager VxVM, Solaris Volume Manager SVM .

Configuring and maintaining virtual server environment using VMWARE ESXi, VSphere, VCenter & OVM.

Experienced in installation, configuration and administration of Windows NT 4.0/2000/2003/2012, RHEL 6x/7.x/8.x Servers.

Installation of Packages, Patch Management and Upgrades.

Experienced in upgrading production Linux and HP UX, development QA servers

Experienced in configuring, administration and troubleshooting Linux/Unix Servers which are connected to Storage such as NetApps, HP XP and HP 3Par.

Experienced in Virtualization Products OVM, VW Ware

Experienced in creating and maintaining users, profile, security rights, disk space and process monitoring.

Experienced in file system administration, resolving system errors, crashes and file system errors.

Experienced on Amazon EC2 AWS and Lumen Public Cloud and Oracle Cloud

Creating new file systems, mounting file systems and unmounting file systems.

Installation, configuration and administration of apache/tomcat, samba send mail.

Security Configuration, Network, System Monitoring on UNIX based Servers Basic hardening of the system and network security, attaining the goal of allowing only the valid users/ports into the system.

Experience in Managing various Network related tasks such as TCP/IP, NFS, DNS, DHCP and SMTP.

Configuring and Administering NIS, LDAP and FTP on Linux and HP UX server environment.

Experienced in writing Shell scripts using bash for group/user administration, startup/shutdown and other system related task.

Experienced in building/compiling packages from source

File system maintenance, process automation of databases, applications and backup

Experience in Troubleshooting Hardware, Storage, Application Bottlenecks. System Recovery, Crash dump analysis and performance tuning.

Have very good experience working with Change Management for scheduling changes on Production and UA servers.

Managing user accounts, system security, change management, documenting and following Company Standards

Experienced in supporting 7x24 production computing environments, on-call and weekend support

Experienced in managing a team, coordination with vendors and other internal teams with in the organization.

Experienced in troubleshooting issues with AMPS for Bank of America

Education:

PG Diploma in Business Management from ICFAI - 2009

Bachelor of Engineering – ECE from Gulbarga University - 2000

CERTIFICATES

AWS Cloud Architect PRINCE2 RHCE CEH v8 HP AIS (HP0-Y30) CCNA Security+ ITIL V3 Foundation

HP-UX Certified System Engineer (HP-UX CSE) HP-UX Certified System Administrator (HP-UX CSA)

Technical Skills:

Operating Systems

Windows NT4.0, Windows 98/2000/2003/XP/VISTA, Linux Red Hat 6.x 7.x 8.x, HP-UX 11.xx, Ubuntu, Sun Solaris 8/7

Hardware

HP Rx series, Hp RP series, HP C7000 enclosure, HP DL360, DL385 G8/G7/G6/G5, Sun Fire Servers - E25k,E15k,12k, E280R, E480R, V240, 420R, V440, V480, V490, V880,V890 4800, E6900 and E2900. IBM - F-SERIES

Data Centre Servers - E250, E450, E3000 and E3500, M4000, T2000, T5120.

Storage- EMC, HP, NetApps

Switches & Routers: Cisco 2600/2900, K Series routers. 3Com and Procurve

Databases

Oracle 11g/10g/9/8, MYSQL, Mongo

Networking

TCP/IP, DNS, NFS, NIS, SSH, DHCP, LAN

Languages

Shell scripting

Tools

IpTables, RedHat Cluster, Solar wind

Ticketing & Monitoring tools

IP Center, Remedy, Falcon, Prometheus and Grafana, Exposure in ELK

Professional Experience:

Pawntrust, Texas Jun 2023 - Present

Lead Technical UNIX / Linux (Somewhat Windows) Systems Administrator

Responsibilities:

Develop and maintain an effective and collaborative business partnership with Key customers and stack holders.

Provide planning, design and implementation of Computer Hardware, Software and Network components.

Ensure customer support service issues and concerns are handled appropriately through effective incident support process.

Involved in UNIX/LINUX/Windows System and Network administration in HP-UX 11.31, Linux RedHat 7/8 servers running different Database and Middleware Applications.

Storage Provisioning, Volume and Filesystem Management using LVM, Veritas Volume Manager.

Clustering solutions for High Availability using tools such as Veritas Cluster Server VCS, RHCS.

Installation and Configuration of HP Servers / Enclosures C3000 C7000, HP Itanium, Configured Enterprise UNIX/LINUX systems in heterogeneous environment HP-UX, Linux, and Solaris with SAN/NAS infrastructure across multiple sites on mission critical systems.

Evaluates the cloud environment and provide recommendations for any changes.

Ensure operational support documentation is complete and accurate.

Receive and respond to advanced trouble shooting calls and service requests from customers needing assistance.

Configured and provisioned instances on Azure and AWS cloud platforms.

Run Ansible play books as per the customer request.

Lumen Technologies, Bangalore Aug 2015 - Jun 2023

Lead Linux/ UNIX/ Windows Administrator

Responsibilities:

Handling project related work for the New Clients

Receiving KT and transferring to the team

Conducting Technical trainings to team

Devised process for the internal follow up

Analyze and resolve diagnostic problems on Linux and HP -UX

Monitoring, troubleshooting, and resolving issues involving operating systems.

Perform software installation, upgrades/patches, troubleshooting, and maintenance.

Participate in root-cause analysis of recurring issues.

Performed routine health checks on the Linux servers.

Responsible for resolving network issues using network tools like ping, tcp, traceroute, tcpdump.

Develop and maintain the documents, library and procedural documents of the system.

Developed Shell Scripts for automation of daily tasks.

Installation/Administration of Windows 2012, RHEL 6,7,8 and HP UX 11.11 on Multiple Servers configuration, testing on both physical and virtual machines.

Worked as Windows/Linux/Unix Administrator Supporting the Server farm in 24X7 Production Environment.

Install and configure various services like DHCP, NFS, DNS, Apache Web Server, NIS, LDAP, Samba, SSH, FTP/SFTP, Sendmail/SMTP, Telnet, RPM Package Management, File System Management.

Worked on Security/Authorizations Created users with limited and full root privileges. Create and manage sudoers.

Perform day to day Linux administration such as user accounts, logon scripts, directory services, file system shares, permissions. Support Oracle database.

Storage Provisioning, Volume and Filesystem Management using LVM,

Setup NFS and Samba File sharing on Linux and Windows servers.

Performed quarterly patching of Linux and HPUX servers on regular schedule

Utilized Remedy, Falcon, and Jira for data center service requests Network requests for IP's, ILO's, and DNS changes.

Supporting AMPS application for Bank of America.

Hewlett Packard Private Limited, Bangalore Oct 2007 – Aug 2015

Technical Account Manager

Responsibilities:

Supporting Mission critical HP UX servers for the Global customers.

One point of contact for any customer issues till the resolution.

Configuring the crash dump for HP UX servers and collecting the crash dumps for the further resolution.

OEM support for all HP UX 11.11, 11.23 and 11.31 for all Mission Critical customers.

Collecting and analyzing the all Software and Hardware logs on HP UX

Once identified the issue, part dispatchment and coordinating with HW vendor till part replacement.

Co-ordinating with the Customer for down time schedules.

Creating the Document library for the future reference.

Distinguished efforts towards managing the complete technical support and troubling shooting of networking Switches and routers.

Created and applied Baselines and Labels for each Build Artifacts.

Created UCM Projects, Development and Integration views for Development and Integration Streams.

Chef to aid with our deployment process, and migrating in - house systems to Amazon Cloud Services.

Using Chef and AWS allowed me to reduce costs for the department and eliminate unwarranted resources. Automated provisioning of cloud infrastructure with Chef.

Worked on installation, configuration and maintenance Debian/Red hat, CentOS and Suse Servers at multiple Data Centers.

Replaced existing manual deployment and management processes with Chef and AWS Ops Works stacks across 4 product platforms

End to end problem resolution to the customer.

Leading and mentoring a team of people involving resolving IT tickets and cases.

Handling maintenance of HP datacentres, Procurve, 3COM, and H3C switches and routers, HP 9000 and HP Integrity hardware across the globe.

Coordinating with various teams for providing technical support.

Organizing and conducting various training programs for enhancing skills of the self and team members.

Accenture P Ltd, Bangalore Aug 2006 – Oct 2007

UNIX / Linux Systems Administrator

Responsibilities:

Led a nine-member team involved in providing network support, worked relentlessly in gathering & communicating customer requirements, specifications, design targets, development process, design standards, techniques and tools

Leading a team for the Change management activities.

Involved in assigning weekend tasks to team and helping them in preparation and executing the TCM tasks

Played a major role in bringing the built system to production level with VERITAS Volume Manager and VCS Cluster along with the packages.

Experienced on RHEL 5,6 and Solaris 6,7 servers.

Carried out seamless NFS Migrations and handled maintenance of Unix Groups, Net groups, and mail groups.

Facilitated decommission of production servers for Solaris and Linux and interacted with the vendors for hardware replacement.

Installed and configured VMware ESX server and SUN Virtual Box to allow virtualization of a physical server to virtual servers that provide running multiple Operating Systems on a single server in a data-center environment for dramatic reduction in costs.

Worked on Linux (Red Hat/SUSE 9) in conjunction with Solaris 8, Apache 2.0 web servers and an Oracle9 database.

Configured a Jumpstart server by editing the sysidcfg, rules and profile files and establishing Jumpstart software alternatives troubleshooting and resolving problems.

Support/Install/Upgrade TSM, monitoring datacenter backups and troubleshooting backup errors.

Installation, configuration and troubleshooting Web logic, NetApp, ClearCase, Apache Tomcat.

Ensured maintenance of knowledge base of issues, resolutions, use cases, topologies, tricks and tips, configuration guides, FAQs and documentation improvement suggestions.

Shell Information Technology, Malaysia Oct 2005 – Jul 2006

Data Center Engineer

Responsibilities:

Managing the Hardware and Operating systems (Windows/Solaris) related issues in the data centre.

Ensured maximum uptime of the systems, worked closely with application specific teams for resolving issues and user administration of the servers

Carrying out file system management of the servers using VERITAS, backup and restore operations.

Evaluated performance issues, recommend solutions and implementing the same for high performance

Raising support calls with vendors and involved in post mortem analysis for server problems

Maintaining the threshold limit for Disk Space, I/O, memory Utilization on the systems

Handled creation of new file systems adding up swap space if required in the systems

TVA Help.com, New Delhi Jan 2003 – Mar 2005

Customer Support Engineer

Responsibilities:

Experienced the maintenance of software servers: Exchange, DHCP, Squid Proxy, Antivirus, AD server.

Experienced maintenance of LAN, Customer Laptops and Desktops

scheduling and maintaining data backups.

Experienced the Sales and customer support.

Experience in taking customer orders for new Laptops and Desktops and prepare the quote.

Follow-up with the customer and once approved procure the order.

Once the order is delivered to the customer complete the installation of the operating system and install printer and Microsoft Office.

Completed Solaris installation and configuration, Configuration and management of Solaris Resource Manager SRM, TCP/IP Network Administration.

Led systems planning, and configuring DNS, TCP/IP, NFS, NIS, Solstice Disk Suite. Jumpstart installation of Solaris O.S. within the framework of NIS, install server and boot server.

Net Connect for WIPRO Info Tech as Customer Support Executive – Bangalore Jun 2002 – Jan 2003

R T Outsourcing services as Customer Support Engineer – Bangalore Jul 2001 – Jun 2002

Kaashyap Radiant as Windows System Administrator – Chennai Sep 2000 – Jul 2001

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