Srinivasa Uputturi
Fremont,California
Summary
14+ years of experience into Unix Systems Administration, Linux Engineering, Server builds and Application Support on UNIX platforms such as Oracle Solaris, Red Hat Linux, AIX and HP-UX Lead multiple data center migration projects, successfully relocating critical applications, servers, and infrastructure with zero unplanned downtime.. Planned and executed operating system migrations, including upgrades from RHEL 6 to RHEL 8. Maintained and administered OpenLDAP and Red Hat Directory Server environments for authentication and directory services. Be part of a team that will work in providing engineering solutions for OpenShift and Docker Onboarding Nodes in OpenShift Cluster with a various business workloads Managing the OpenShift cluster that includes scaling up and down the AWS app nodes Experience with working in and maintaining PaaS environments, including Kubernetes and Openshift Designed and implemented Kubernetes clusters on Azure Kubernetes Service (AKS) for hosting scalable microservices applications. Expert in Linux Performance monitoring, kernel tuning, Load balancing, health checks and maintaining compliance with specifications. Experience in Installing Firmware Upgrades, kernel patches, systems configuration, performance tuning on Unix/Linux systems.
Overview
14
14
years of professional experience
1
1
Certification
Work History
HPC Admin
Cherish Technologies
California
03.2023 - Current
- Managing large scale infrastructure with 8000+ REDHAT Linux servers in a distributed and highly available critical infrastructure
- Co-ordinating with DC team & Vendor's on HARDWARE issues
- Migrated EOL Hardware and Operating systems to newer supported platforms
- Engaging NETWORK & STORAGE teams to troubleshoot N/W & HBA cables
- Works with Operations team for Production issues and escalations, also with engineering team for testing various products
- Installed and configured Linux operating systems (e.g., CentOS, RHEL, Ubuntu) on high-performance computing (HPC) clusters to support scientific computing workloads
- Utilized node provisioning tools like Werewolf to automate the setup, configuration, and deployment of nodes in large-scale HPC and data center environments
- Designed and implemented a parallel file system for high-performance computing (HPC) clusters, ensuring optimized data storage and throughput
- Administered and configured job schedulers (Slurm/LSF) on HPC clusters, ensuring efficient job submission, scheduling, and resource management
- Troubleshot and resolved issues related to job failures, queue management, and resource contention, ensuring high availability and system reliability
- Managed Kubernetes deployments, objects for high availability and scalability using horizontal pod scaler and resources management
- Scheduling changes to perform various outage and non-outage activities like Firmware Upgrade, Patch upgrade, Bug Fixes etc
- Working/Troubleshooting on server performance issues and monitoring server performance for all the time
- Installed and configured VERITAS Volume Manager (VxVM), Disk and file system management through Veritas Volume Manager
- Worked on operational support activities to ensure availability of Linux
Linux SME
Synechron Technologies
Hyderarad
10.2020 - 03.2023
- Handling the day-to-day Operations, Install software, apply patches, manage file systems, monitoring performance and troubleshoot alerts
- Managing Redhat Cluster, HPC environment etc
- Good Automation practices with RedHat satellite servers to deploy hundreds of application i.e SPLUNK,BesClinet,Symmantec,RSA Token authentication to new or existing AWS/VMWARE vCentre servers
- Linux Engineer to Design and RHEL7 with LVM and XFS file system to host SPLUNK distributed search architecture for DOJ-EOIR
- Configure RedHat Identity Managment(IDM) to use PIV card user Authentication
- Deployed and configured Tanium Client across [specific number] endpoints to enhance enterprise-wide endpoint visibility and control
- Build Yum and RPM repository Server for Development team to upload packages, Written UNIX Shell scripts for monitoring & clean up old files
- Maintained virtual environments using VMware ESX 4.x Server and built various Linux servers on VMware servers
- Responsible to solve technical Problems related System administration (Linux of Our Clients)
- Building & configuring Red Hat Linux systems over the network, implementing automated tasks through crontab, resolving tickets according to the priority basis
- Handling LVM related tasks, Creating, resizing LVM, Veritas Volume manager and also managing Cluster environment using Veritas Cluster suite
- Experience in setting up the Chef work station, Chef Repo as well as chef nodes from the scratch
- Managed patches configuration, version control, service pack and reviews connectivity issues regarding security problems
- User Administration (setup and maintaining accounts)
- Maintaining Server and Systems, provide IT support to User
- Monitoring system performance, Server load and bandwidth issues
- Work with DBAs on installation of DB, restoration and performance tuning.access to all new RHEL7 Environment, and manage user access level control(ACL) per role basis
Lead Administrator
Wipro Technologies
Hyderabad
06.2014 - 06.2020
- Provided 24x7 on call remote support for production issues and responding user's tickets
- Resolving P1 & P2 tickets with in the SLA
- Proactively monitor Linux servers and services to ensure system health and uptime
- Respond to and resolve incidents, service requests, and escalations within defined SLAs
- Conduct root cause analysis and implement corrective and preventive actions
- Draft and submit detailed Change Requests (CHGs) adhering to ITIL standards and organizational policies
- Participate in Change Advisory Board (CAB) meetings to present and obtain approval for changes
- Document and implement changes following ITIL and organizational standards
- Maintain accurate and up-to-date documentation for processes, system configurations, and troubleshooting guides
- Ensure Linux/UNIX servers comply with organizational security policies and standards
- Handling LVM related tasks, Creating, resizing LVM, Veritas Volume manager and also managing Cluster environment using Veritas Cluster suite(VCS)
- Managed Kubernetes deployments, objects for high availability and scalability using horizontal pod scaler and resources management
- Deployed Prometheus with Grafana to monitor the Kubernetes cluster and configured alerts firing
- Worked on Openshift platform in managing Docker containers and Kubernetes Clusters and Created Kubernetes Cluster using ansible playbook
Linux Administrator
Encora Technologies
Malaysia
09.2010 - 06.2014
- Handling the day-to-day Operations, Install software, apply patches, manage file systems, monitoring performance and troubleshoot alerts
- Installed and configured VERITAS Volume Manager (VxVM), Disk and file system management through Veritas Volume Manager, Solaris Volume Manager and Solstice Disk Suite on Solaris and using Logical Volume Manager (LVM) for other flavors of UNIX
- Participated as a member of the Unix Build team with responsibility to install and configure AIX LPAR's on Power7 servers
- Build Yum and RPM repository Server for Development team to upload packages, Written UNIX Shell scripts for monitoring & clean up old files
- Maintained virtual environments using VMware ESX 4.x Server and built various Linux servers on VMware servers
- Responsible to solve technical Problems related System administration (Linux of Our Clients)
- Building & configuring Red Hat Linux systems over the network, implementing automated tasks through crontab, resolving tickets according to the priority basis
- Handling LVM related tasks, Creating, resizing LVM, Veritas Volume manager and also managing Cluster environment using Veritas Cluster suite
- Handling the day-to-day Operations, Troubleshooting& Solve Server Problems in LINUX
- Installing and configuring Red Hat Linux locally or over the network-kick start- (nfs, ftp, http)
- Managed patches configuration, version control, service pack and reviews connectivity issues regarding security problems
- User Administration (setup and maintaining accounts)
- Experience in building binaries using Maven & Xcode
- Maintaining Server and Systems, provide IT support to User
- Monitoring system performance, Server load and bandwidth issues
- Work with DBAs on installation of DB, restoration and performance tuning
Education
Master of Science - Information Technologies
Sikkim Manipal University
Gangtok, India01.2008
Skills
- HPC Cluster Admin
- RedHat Linux
- Suse
- Ubuntu
- Kubernetes
- Docker
- Ansible
- Terraform
- Shell
- Git
- GitHub
- Azure
- VMware
- Veritas Cluster Server
- VXVM
- LVM
- Server Patching
Certification
- AWS certified solutions architect
- Red Hat Certified Engineer (RHCE)
- Certified Kubernetes Administrator
Timeline
HPC Admin
Cherish Technologies
03.2023 - Current
Linux SME
Synechron Technologies
10.2020 - 03.2023
Lead Administrator
Wipro Technologies
06.2014 - 06.2020
Linux Administrator
Encora Technologies
09.2010 - 06.2014
Master of Science - Information Technologies
Sikkim Manipal University
Similar Profiles
VENKATA NARASIMHARAO VVENKATA NARASIMHARAO V
Senior Executive - Finance & Accounts at CHERISH BUILDING SYSTEMS PVT LTDSenior Executive - Finance & Accounts at CHERISH BUILDING SYSTEMS PVT LTD
Lisa RibichLisa Ribich
PCA at Cherish PcaPCA at Cherish Pca
Sara Milne-FlamerSara Milne-Flamer
Expressive Art Therapist at Cherish ClinicExpressive Art Therapist at Cherish Clinic
Yvonne FobbsYvonne Fobbs
Caregiver at Lajwanti RobertsCaregiver at Lajwanti Roberts
Ayub MohmandAyub Mohmand
Shift Supervisor at StarbucksShift Supervisor at Starbucks