Cloud Engineer Linux Administrator

Mukteshwar Vaddiraju

Mobile: +1-630-***-****

Lead Linux Administrator

Email: *********.************@*****.***

Professional Summary:

Over 13+ years of experience in Linux/Unix, Solaris, Windows and Azure/OCI Cloud Engineer.

Working as Unix/ Linux (RHEL, SUSE and CentOS), Solaris/AIX, windows, AWS, and VERITAS Cluster services.

Building and maintaining Linux distribution (Ex: similar to Ubuntu/RHEL/Fedora/CentOS).

Responsible to Fix high priority incidents and provide solutions for future issues.

Ensured that all server hardware, operating systems, software and procedures aligned with organizational standards and strategic business plan.

Define the direction for VMware and Unix's platforms and related systems.

Reengineered company’s server setup, establishing automated server generation routines, optimizing server performance, installing upgrades/patches, establishing system monitoring and maintaining security protocols TCP/UDP.

Acted as escalation point for troubleshooting advanced server issues; consistently earned 100% issue-resolution scores by providing excellent service to internal and external customers.

Increased team productivity and automated repetitive tasks by using scripts and scheduling jobs.

Led in-house and consultant team in large-scale Linux/Unix server upgrade for multinational consulting firm, which significantly enhanced system performance.

Reduced OS install, configuration, security settings, and compliance application installs by rewriting / simplifying the existing server build process. And Documented procedures and helped develop guides to aid in the troubleshooting of software and hardware systems and configurations. And identified, documented, and communicated potential system problems.

Managed Red Hat Linux and VMware ESX servers, modernized security policy for Red Hat servers.

Deployed automation tools like Ansible server for patching.

Experienced in different type of Linux OS and deployed variation applications.

Trained team on maintenance servers and consistently under budget and on time with deliverables.

Automation, image development, deployment and maintaining configs.

Patch, and remediate vulnerabilities on Linux through Ansible playbook, Uyuni Tool and BladeLogic Tool.

Worked automation tasks Patching and deployments through Ansible.

Performance tuning & troubleshooting, identifying and resolving memory, CPU, access, networking, disk I/O, etc.

Implement a patch management program for Linux systems to ensure they are up-to-date and secure.

Perform regular security patching and software updates on Linux systems to address known vulnerabilities and security issues.

Monitor vendor security bulletins and alerts to determine the urgency and priority of patching activities.

Collaborate with other IT teams to schedule patching activities that minimize system downtime and user impact.

Building, deploying, automation for on-prem private cloud and AWS Cloud.

Server built, Harding, migration and trouble shotting.

Quarterly OS image release in the cloud & On-prem.

24/7 support: Supporting the production servers which are to be maintained available 24/7 unless if any down times.

Ticketing Management: Extensive experience working on incident and problem management, service requests, Ticket management tool used to generate and resolve the tickets. This is in turn is internally connected to servers. Tickets are created automatically when events are triggered by servers and should be resolved manually. Also, tickets can be created manually for other purposes.

Vendor Management: Good working exposure in Getting in touch with Vendor in case of hardware failures, replacements, to identify the know issues and procedures while upgrading the OS, VIOS, Firmware, HMC and Microcode and warranty & Contract renewals.

Change management: Good exposure towards change management creating, reviewing, approving, attending CAB, ECAB meetings and implementing change-requests that are given by the customer on their servers. Also, to prepare the technical as well as process documentation for any changes time to time.

Outage Management: Good working experience in attending, managing and resolving outages which are occurred on AIX, LINUX Servers with minimal time.

RCA/EAR: Submitting Root Cause Analysis (RCA) or Event analysis report for severity 1 incident, as per the customer’s requirements

Education:

Master of Computer Applications from Kakatiya University.

Certifications:

AWS Certified Solutions Architect – Associate.

PROFESSIONAL SUMMARY:

Freddie Mac. SRE 2nd Feb 2024 to till Date

Hexaware Plano TX (USA)

Developing Bash scripts for automating routine maintenance tasks such as log rotation, backup and restore, and monitoring system performance.

Supported by 24X7 shift rotation basis and on call support. Worked on HP Service Agent tool and Service NOW tool to make sure all tickets are closed within SLA.

OS Patch / upgrades with latest patches by planning down time with end users. Co-ordination with different teams. Interacting different teams to work get done.

Performed Linux Server patching using the Ansible playbooks and using Blade logic.

NIC bonding as per the requirement.

Decommission the servers and Build the new server as per requirements.

Installation OS Linux (RedHat6,7,8 and 9) on physical (HP-BL/DL,Dell) and Virtual.

Security health and hardening servers according to Tech-spec.

Automated infrastructure provisioning using Terraform for AWS resources such as EC2, VPC, S3, and RDS, ensuring consistent and repeatable deployments through Infrastructure as Code (IaC).

Implemented configuration management using Ansible to automate system setup, patching, application deployment, and compliance enforcement across large-scale Linux environments.

Designed and maintained CI/CD pipelines integrating Ansible and Terraform to streamline infrastructure updates and software releases with minimal downtime.

Monitored and improved system reliability and scalability using AWS services like CloudWatch, Auto Scaling, Load Balancer, and managed backups to meet SLAs and reduce incidents.

Collaborated with DevOps and cloud engineering teams to support production environments, perform root cause analysis, and ensure high availability and fault tolerance of services hosted on AWS.

Create and maintain file system and housekeeping on file system.

Experienced on firmware upgrade with SE.

Prepare server documents for future reference.

Worked with all type of vendor to stable Data center.

Design; implement best solutions for production environment.

Configuring printers in Linux production servers.

Responsible for Incident, Change, Release and Problem management.

Responsible for the Installation, configuration and upgrades on RHEL software packages also periodic update like

applying kernel patches, fixes. Finding best practices and doing process improvement activities.

Installed, Configured and Administration of LVM.

Using LVM pvcreate vgcreate, and lvcreate, resizing using vgextend, lvextend.

Installing the packages through rpm File System Management

Adding CPU and Memory for Linux virtual machines through ESXi.

Installing of software packages and patches on Redhat Linux servers.

LVM Administration and Configuring and managing DNS /DHCP services on Linux.

Shell scripting: Create as well as manage existing.

Worked automation tasks patching and deployments through Ansible/teraform

Troubleshoot Linux build server issues.

Managed Oracle VM lifecycle operations including creation, configuration, and decommissioning.

Performed resource allocation tasks such as CPU, memory, and disk resizing. on Oracle virtualization environment

Configured and maintained virtual networks, VLAN assignments, and NIC settings. On OLVM

Handled storage domain tasks including disk attachment/detachment and volume expansion (OLVM )

Monitored Oracle VM performance, reviewed system logs, and resolved basic virtualization issues.

Experience managing SAS/NAS/CAS storage at the OS level, including provisioning, mounting, and persistent naming via WWN/udev.

Skilled in configuring and troubleshooting NFS/CIFS shares, ensuring high availability and performance.

Automated storage operations and system tasks using shell scripting and Ansible.

Administered Linux virtual machines on VMware ESXi/vSphere, including snapshots, hardware updates, and optimization.

Worked closely with vCenter for VM provisioning, HA, DRS, and vMotion.

Strong troubleshooting skills for hypervisor-to-guest OS issues on Linux platforms.

AWS:

Build & Management of AWS Cloud Infrastructure.

Hands on experience on AWS services such as VPC, EC2, S3, ELB, AutoScaling, EBS, RDS, IAM, CloudFormation, Route 53, CloudWatch, CloudFront, CloudTrail.

Create alarms for instances using Cloud Watch

Sever configuration management and orchestration using Ansible.

Taking the snapshots before patching.

Will push the Patches to hadoop Environment (cert/uat/enclave).

Will generate the patch reports account wise by using lambda will write the Jason code.

AWS patch manger update the baseline Attach/Dettach.

An understanding of the Software Development Life Cycle (SDLC)

Experience with Agile Development environment.

Worked closely with all the project owners & team members to achieve a successful result.

AT&T Services (Contract) Technical Support Specialist /Data Centre Migrations 14th Sep 2021 to 8th January 2024

Kyndryl Solutions Pvt Ltd – Hyderabad India.

Maintaining Client IT Infrastructure. Managing Technical POD team providing proactive support in Unix environment.

Managing Servers Security Non-Compliance remediation (SACT). Managing VMS (Vulnerability Management System) to remediate Vulnerabilities.

Having hands on experience on setting system level logs using (syslog, rsyslog) on AIX, HP-UX, Linux servers in AT & T environment.

Fixing system level, application-level security Vulnerabilities on Linux, AIX, Solaris, HP-UX machines so that the AT & T machines are security complaint with ASPR standards.

Setting audit rules using auditctl command to monitor file or directory permissions to maintain security compliance.

Fixing NFS and SNMP related vulnerabilities. Fixing Tomcat and Apache related vulnerabilities Managing RHEL upgrade activities (RHEL 6-7 & RHE 7-8).

Supporting Application team for their project activities (PMATT’s). Supporting Data Center environment across the globe.

Working on Incident Management, Change and Problem Management. Working on Projects like Expanding LVM tasks on multiple mount points on multiple servers. Working on Projects for adding new disk and configuring them as LVM on multiple servers.

Working on Patching projects like upgrading RHEL 6 servers to RHEL 7 servers and RHEL 7 to RHEL 8.

DCC migrations (Forklift the servers from one data center to another data center).

Have an excellent knowledge & experience of Network & networking, along with Storage Devices & technologies. Performing Storage migration without downtime, live activity in production.

Proactively maintained and developed all Linux infrastructure technology to maintain a 24x7x365 uptime service;

Performed engineering of systems administration-related solutions for various project and operational needs.

Administrated huge no. of Production Servers in both Data Center & Cloud Environment; developed excellence in management; managed, coordinated, and implemented software upgrades, patches, hot fixes on servers, workstations, and network hardware. Building, configuring & managing servers RHEL 7 & 8. (VM & Physical servers).

Plan & Perform Storage Migration in business-critical server along with other servers also Working on data migration go-live strategy/activity that is driven primarily as per business needs and different approaches with understanding of making right decisions at the project inception. VXVM Filesystem creation and extend.

Creating and Administering Disk Groups and Volumes Disk Configuration. Configuring and bringing the disks into VxVM. Changing layouts online by using vxassist.

Resizing the Volumes and File systems and Root Mirroring by VxVM. Creation and Removal of volume. Creating Sub disks, Plexes, Logical volumes and Disk groups.

Install configure High Availability solution using VERITAS Clustering products VxVM.

Basic knowledge in veritas cluster server administration. Freezing, switching service groups during the maintenance.

Clearing faulty resources and Creating resources and modifying the resource attributes. Failover / Failback the Service groups from PRD to DR & vice versa.

Supporting Disaster Recover Management. Vendor Management for H/W and S/W issues. Preparing SOP’s as and when required.

Design, Install, Deploy, configure and Manage Operating Systems within Physical and Virtual Platforms. Supporting Linux, UNIX and Windows Servers with SSH, FTP, Remote Gateway Servers, application and daemon related issues.

Windows and Linux Infrastructure deployment, administration, troubleshooting and configuration.

Active Directory and DNS Integration to engage with Production, Development and Sandbox environments.

Maintaining servers already installed and setup with critical and specific applications on their networks. Design, build, install and configure RedHat Enterprise Linux and Windows Servers within the virtual environment.

Infrastructure deployment, administration, troubleshooting and configuration virtual and cloud instances on Microsoft Azure platform. Performing Security Services, Hardening, Service Creation and Reporting, Information Gathering, IAAS / PAAS status, Migrations and Deployments, Performing updates and upgrades on the systems currently on the network for performance and auditing purposes.

Designing, Performing Administration and configurations on all VMware and Oracle VM Platform Environments.

Design, build, install and configure RedHat Enterprise Linux servers within a physical and virtual environment,

Kernel configuration on the operating system for optimum performance, administering a RedHat Enterprise Linux operating systems to be implemented on the existing networks, Troubleshooting and Trouble Analysis of operating systems and hardware systems with signs of degradation in resources and performance.

Updating the new and currently installed systems for best performance in order to achieve the lowest possible latency. Experience with RedHat Linux 5.x Administration, installation, products and troubleshooting,

Datacenter moves and system migrations – Physical and Software related migrations and deployment.

Managed the Splunk environment, including monitoring and alerting on system performance and availability.

Provided technical expertise to other IT staff regarding best practices for managing the Splunk environment.

Working on instrumenting Dynatrace for different types of applications.

Dynatrace architecture design for production, Test, Development & DR.

Designed Batch Processing system for applications using AutoSys. Developed standardized scripts for job implementations.

Provided 24*7 batch processing support.

Troubleshoot batch failures to determine case (review AutoSys) and correct/escalate.

Perform problem determination and resolutions (Root Case Analysis)/

SE2, LLC & Wolters Kluwer & Hilton (Contract) 3th Mar 2020 to 2nd Sep 2021

NTT DATA Global Delivery Services Bangalore India

Systems Integration Specialist.

Providing support on 24X7 shift rotation basis and on call support.

Working on BMC Remedy and Service NOW tool to make sure all tickets are closed within SLA.

OS Patch / upgrades with latest patches via Red Hat Satellite server and patching performing through Ansible (RUNDECK).

Worked on Incident Reduction for multiple customers. Experience in Unix Transition for new and upcoming projects.

Involved in the CAB meetings to get approval from customers for changes.

Monitor the servers in SolarWinds and Zenoss.

Setup Intranet Web Servers with APACHE, multiple- site management with named-based Virtual hosting.

Installation & Configuring Apache on Red Hat Linux - 9 and RHEL– 5.

Configuration of NFS Server & NFS Client for disk sharing to take backup of CVS repository on network.

Setting Kernel Patches and Rebuilding Kernel on ubuntu servers.

Experience in Managing and Troubleshooting Linux Storages like LVM.

Written Linux Log rotate scripts to handle Disk space issues on Production/QA/STG hosts.

Writing Regular expression code. Automated Tomcat Server Administration using Ansible Playbooks. Like, installing, upgrading tomcat, Monitoring and Performance Tuning of Production Servers.

Installing and Upgrading of software services using RPM.Familiar with ITIL Process. Incident management, Change Management. Problem management, Implementation of Changes.

Infrastructure deployment, administration, troubleshooting and configuration and virtual instances on Linux / UNIX platform.

XPO Logistics & Butterfield Bank. 11th Jan 2016 to 9th March2020

DXC Technology Bangalore India

Professional 1 System Administrator

Supported by 24X7 shift rotation basis and on call support. Worked on HP Service Agent tool and Service NOW tool to make sure all tickets are closed within SLA.

OS Patch / upgrades with latest patches by planning down time with end users. Co-ordination with different teams. Interacting different teams to work get done.

Providing services to the users like providing access to servers and resolving their issues.

Coordinating with Vendors for all hardware and software related issues. And also Coordinating with Onsite team in-case of hardware failures (HBA, Physical Drive, battery, DIMM, Tape Drive) To get it replaced.

Decommissioning of Linux Servers.

Knowledge on Disaster Recovery Environment.

Disk configuration & Managing File Systems. Configuring, Administrating and Management of Users and Groups (NIS). Increasing RAM, CPU, virtual Disk Space and updating the VMTools to meet client Requirements on VMware. Scheduled various regular, onetime jobs by using cron and at.

NIC bonding as per the requirement.

Involved in the TAB/CAB meetings to get an approval from customer for changes and internal teams. Attending the bridge calls (P1 & P2) and troubleshooting to fix the issues.

Coordinating with vendors and provide the RCA to customer if any system down alert come.

Performing regular server reboot requests. Familiar with ITIL Process. Incident management, Change Management. Problem management, Implementation of Changes.

Basic knowledge on IBM AIX (Scan the LUNs by using cfgmgr command and Filesystem Extension by using chfs command and increase CPU by login HMC Console).

Knowledge on VCS (Freezing and Unfreezing and failover and switchover the SG). Freezing and Unfreezing and failover and switchover the SG.

Adding & removing the nodes to cluster setup.

Modifying application and system access, including security protocols and other layers of security and access prevention,

Working with a variety or Operating Systems: RHEL, AIX, SLES, Oracle Enterprise (OES), Ubuntu and other OS.

Hitachi & AT & T (Contract) 1st Aug 2014 - 31stDec2015

Synectiks IT& Consulting Pvt Ltd

Migration Specialist.

Worked with Hitachi Data Systems Migration to do the host-based storage migration for clients.

Performed host-based storage migration at host level for Solaris and Linux Servers.

Detect the new LUNs from new storage box and initialize them in the servers.

Add the newly added LUNs to existing Disk groups. Perform plex mirroring using vxassist, copy the data from one disk to another disk using vxevac and pvmove commands.

Disassociate and remove the old plexes using vxplex command.

Remove old LUNs from servers and inform storage team to reclaim them.

Provide hands-on support for RedHat Linux, AIX, and Windows Operating systems.

Assist Systems Admin's in configuring, implementation, troubleshooting of Servers from SAN Storage perspective.

Provide hands-on support to System Admin's to perform UNIX Host-Based migrations.

KRV SOULUTIONS PVT LTD - Hyderabad October 2011 – July 2014

Role:-System Engineer

I was part of a small team to monitor and manage Unix/Linux systems across two data centers. Supporting L1 related tasks.

Perform reboot activities as per customer requirements.

Monitoring the Incidents and service requests.

Worked on file system and CPU related incidents.

Work Summary

2024 – Till Date Freddie Mac Consultant

2021 - 2024 AT&T Services Lead 2 System Administrator

2020 - 2021 SE2, LLC & Wolters Kluwer & Hilton Systems Integration Specialist

2016 - 2020 XPO Logistics Professional 1 Systems Administrator

2014 - 2016 Hitachi & AT & T Migration Specialist

2011 - 2014 KRV Solutions Pvt Ltd System Engineer.

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