Profileimage by Sivaraja shanmugasundaram Senior Infrastructure Engineer, Senior Infrastructure Engineer, Technology Analyst from SanJose

Sivaraja shanmugasundaram

available

Last update: 09.06.2024

Senior Infrastructure Engineer, Senior Infrastructure Engineer, Technology Analyst

Graduation: BTech
Hourly-/Daily rates: show
Languages: English (Full Professional)

Keywords

VMware ESX Servers IBM Websphere Application Server Apache Tomcat Cloud Computing Data Centers Web Servers Load Balancing Active Directory Server Application JIRA + 125 more keywords

Attachments

SivaRaja-Shanmugasundaram-infra01_090624.docx

Skills

Active Directory administration, Active Directory, Adobe, agile software development methodology, EC2, S3, VPC, AWS, Ambari, Ansible, Ansible Tower, HBase, Apache, tomcat7, Tomcat, Apache Tomcat, application performance, Autoscaling, backend, Backing up, backups, backup and restore, bash, BASH (Shell), BitBucket, Bugzilla, build process, CentOS, Ceph, Cisco, cloud, cloud-based, hybrid cloud, Pivotal Cloud Foundry, Cloud platform, Cloud Formation, code testing, code compilation, network traffic, Configuration Management, Confluence, Containerization, Continuous Deployment, CI/CD, continuous Integration, Data Centers, Datacentre, data center, datastore, database connectivity, database servers, Database Server, database, Datadog, Dell PowerEdge, DevOps, Distributed File System, Docker, DNS, DHCP, folder permissions, file system, FTP servers, firewall, Firmware, GIT, GitHub, GitLab, Grafana, Graphite, heap, Hyper-V, Hypervisor, IBM Blade, ClearCase, IBM WebSphere, IBM WebSphere Application Server, IBM WebSphere Application, WebSphere application server, WebSphere Commerce, Information Technology, IT infrastructure, IaaS, IIS, intrusion detection and prevention, issue tracking, Atlassian JIRA, Jira, java, Jenkins, KVM, Kubernetes, Linux, Linux servers, load balancers, load balancer, load balancing, LAN, Master-slave, microservices, micro services, Windows platforms, Windows, windows OS, windows operating system, multi-platform, three tier, Nagios, NetAPP, network diagrams, routers, servers, node, opensource, OpenShift, OpenStack, Open stack, Oracle ATG, Oracle 11G, Oracle database, package management, performance tuning, SSL Certificates, PKI, Pure storage, Python, RedHat, Red Hat Linux, release management, RHEL6, Ruby, server configuration, application servers, Application server, CIFS, smoke test, software applications, Patch management, Source Code Management, version control, SonarQube, Splunk, storage architecture, Subversion, SVN, high availability, SCCM, Systems Engineer, TCP/IP, SSL/TLS, VMware ESXi, ESXi, esx, ESX server, Virtual host, Virtual machines, Virtual machine, virtualization platforms, virtualization, VMware, Web Applications, Web Hosting, webpages, web server, Web servers, webserver, WAN, Windows Server, windows servers, XEN, YAML, Zenoss

Project history

02/2020 - 06/2023
Senior Infrastructure Engineer
Xoriant Corporation; Hughes Networks Ltd

* Using Ansible Playbooks to the provision of EC2 and Virtual instances into multiple zones to
provide High availability
* Managing Clustered Virtual machines across various locations and managing backend datastore
across datacentres
* Creating Ansible Playbooks with YAML functions to set up infra cluster, rendering application
servers and deploying microservices.
* Design and deploy infrastructure with ansible code and integrate the systems, design and the
integrators
* Develop and document design and network diagrams, software frameworks and manage the version
control
* Troubleshoot the systems and resolve the performance-based issues
* Implement mechanisms to regularly upgrade and Patch COTS hardware and software automate the
infrastructure deployments
* Designed and implemented a virtualization platform using VMware and Openstack for the non
production environment on new Datacentre
* Maintaining Basis of Design, prototype design, and template specifications for architectural
elements
* Communicating conceptual designs and creating/maintaining project documentation before,
during, and after construction
* Playing an active role in manageability and operations of the data center
* Setup Jenkins and GIT to automate most of the build related tasks and set up continuous
Integration for major deployment releases.
* Building container images and advanced docker file instructions for applications deployment on
Kubernetes cluster
* Configuring and Managing chart repository structure using helm for package releases in
Kubernetes cluster.
* Configuring on controlling the pod scheduling behavior and limiting resource usage on
OpenShift platform.
* Performing, managing cluster resources and recurring maintenance activities on a Kubernetes
cluster
* configuring various features and exploring the options for optimal performance and security
* Adequately securing the Data Center and examining factors such as facility design and
architecture
* Administer and manage workloads on an OpenShift cluster with the web console and CLI
* Conversant with the rapid provisioning of resources and instances using OpenStack Heat
templates and Ansible.
* Configuring Module, integrating web server, and rendering the application with the load
balancers through Ansible playbooks.

02/2020 - 09/2022
Senior Infrastructure Engineer
Gap Inc.

Responsibilities:
* Setup Jenkins and GIT to automate most of the build related tasks and set up continuous
Integration for major deployment releases.
* Manage Web Applications on IBM WebSphere Application Server AS and deploying java-based
applications
* Handled complete build tool management using Jenkins for building deployment artifacts
* Managing and editing cookbooks and recipes at various nodes across various environments using
Chef.
* Installing and Configuring Application server based on Silent Installation on Linux servers of
high availability and apply necessary feature and fix pack
* Branching, tagging, develop, manage Pre-commit, Post-commit hook scripts and maintaining the
versions across different Source Code Management using GIT, Subversion (SVN) on Linux and
Windows platforms and SCM client tools like GitLab
* Developing a robust server and storage architecture
* Leading a team of engineers to migrate to a new data center, with existing hardware in
production on lift and shift with stipulated time
* Creating the VIP's for various applications and the configuring plugins for maximum security
* Perform end to end Cluster Maintenance on Kubernetes on applying security and OS patches,
backup and restore nodes across clusters
* Monitoring the server ans performance and metric analysis for on-prem and the cloud across
various geographical locations.
* Setup application permissions and controlling access resources with SSC in OpenShift clusters
* Managing Virtualization technologies like VMware, KVM an OVirt
* Configuring and installing various Packages, features in windows OS and exploring the options
for optimal performance and security
* Handling containerization and container management tools like Docker, Docker Compose for
Orchestration, deploying the services related to the Containers and with container-based
deployments using Docker.
* Experience in Windows Server 2008/2012/2016 administration includes Active Directory
replication, Distributed File System (DFS) and troubleshooting
* Setup Kubernetes multinode master cluster and managing Internal components like Pod's, replica
set's, Secret's, Daemon set's, Scheduler, autoscaling node's and the pod's
* Managing containers and orchestrations in Kubernetes clusters that includes pods, networking
and replica sets and deployment
* Provisioning EC2 instances using Auto scaling groups, Load Balancers in a newly defined
Virtual Private Cloud VPC.

09/2018 - 02/2019
Senior Infrastructure Engineer
Final Quotient; DarkMatter

Responsibilities:
* Managing Red Hat Linux Virtual machine, that includes security patching, server hardening and
installation of application servers and plugins, and deploying applications to various
environments
* Build and maintaining the TripleO (OOO) based overcloud deployments and provisioning instances
* Troubleshooting the container engine and application deployments on Kubernetes clusters
* Assigning the administrative privileges and configuring identity providers, defining and
applying permissions using role-based access controller on Kubernetes cluster
* Managing the complete infrastructure and the resource allocation and access with Linux forms
* Conversant with installation of OpenStack (IaaS) under cloud and overcloud with multiple
controllers, computes and Ceph (HCI Compute) Nodes.
* Designed and implemented a hybrid cloud infrastructure using Private cloud openstack and
Ovirt.
* Designing the physical environments necessary to sustain the virtual environments used by
companies to host and manage their data
* Managing the network traffic and network resources, Network modes using SDN In OpenShift
clusters
* Deploying Java applications with customized build scripts and automating the deployment
* Rapid build the automation of Physical and Virtual RedHat/CentOS based systems using Kickstart
* Managing Ansible Tower to manage several nodes and manage inventory for several nodes across
various environments.
* Troubleshooting legacy Windows servers, ESX server and issues related to windows operating
system and (CIFS) file system
* Automate traditional build process using DevOps methodology using Jenkins and customize build
scripts with WebSphere Commerce Build and Deploy (WCBD) tool to deploy web commerce and order
management applications across various environments
* Controlling application permissions using security context constraints, OpenShift Software
defined networks and components and configuring control access
* Maintaining periodic instance backup of all environments for restore latest configuration
during failure
* Setup Private Cloud (OpenStack) , VMware with Hyper converged to deploy overcloud with micro
services-oriented environments, and configuration automation using Docker containers.
* Manage Web Applications with the chef and GIT repository for Configuration files for data
consistency.

11/2011 - 06/2018
Technology Analyst
Infosys Limited; Gap Inc.

Responsibilities:
* Infrastructure Engineer Skills RHEL6/7, CentOS, VMware, OpenStack, Pivotal cloud foundry,
Subversion, GitHub, Chef, F5, Nagios, Splunk, Cobbler, KVM Hypervisor Environment Production /
Non-Production Contribution.
* Collaborate with architects to understand the requirements, application improvements and
communicate with business.
* Experience in Managing Networking services for Active Directory, DNS, DHCP for devices and
user access and implementing group policy
* Provide operation and sustainment support for virtualized environments.
* Branching and merging develop manage pre- and post-commit hook scripts.
* Responsible for Managing and configuring the preproduction environment at different
geographical locations.
* Managing storage includes LUN creation, shared volume and applying policies across various
projects and storage pool migration.
* Server Hardening, Firmware upgrade and package management using yum
* Experience in VMWare, ESX Administration, cloning, snapshot management, migrating hosts from
one ESX to another using the virtual client
* Windows Server Activities includes Active Directory administration, email, Building and
Decommissioning of windows servers on VMware and Verifying server configurations
* Managing the distributed repository that includes access control, branching and code merge.
* Setting up Wide IP's for application deployed across environments and render the application
availability.
* Supporting project team, application teams in addressing incidents, problems for tools and
platforms.
* Provide the solution on every root cause analysis and detailed report for elimination of such
instance failure.
* Handling more than 1000+ Linux servers with multiple applications hosted on to various
environments
* Installing patches using SMS\SCCM, configuring folder permissions, installing system and
performance, monitoring tools, troubleshooting of windows OS issues and IIS issues
* Interacting with multiple stakeholders and support team for build, test, release and operation
with agile software development methodology
* Analyzing errors, trace, message logs to understand the root cause for the application failure
and provide the solution.

03/2015 - 10/2015
Infrastructure Engineer
Forever21

Responsibilities:
* Design and create multiple clustered environments that include application migration from the
existing legacy applications.
* Managing virtualized Infrastructure and deploying ecommerce applications across various
environments and do smoke test.
* Configuring the responses setting up the MQ server for responses and queue creation for the
response's Integration.
* Configure and set automated scripts for applying business changes to the production with Nightly
Jobs that include Data load and Build index preprocessing on regular basis.
* Managing and assigning access control policies, user's roles and association, add-on feature
and payment on order management system.
* Customizing build scripts using ant and integrating the IBM ClearCase for code compilation
* Installation and Configuration of high availability of IBM WebSphere Application Server and
apply the feature and fix pack
* Upgrade and migration of IBM WebSphere Application Servers and implement SSL Certificates for
each application and rendering the nodes.
* Monitoring of JVM Performance and analyzing heap, connection and garbage collection patterns
* Applying recommended Feature Packs at the initial setup, apply fix pack at every release for
each application server and on the lower environment, and proceed with the production after
successful testing.
* Interact, understand the business requirement across various functional team, domain experts,
and deliver with the stipulated time-frame.

01/2013 - 02/2015
Build and Release Engineer
Hudson's Bay Company

Project-02
Hudson's Bay Company, (Offshore) 01/2013 - 02/2015
Build and Release Engineer
Responsibilities:
* Automate traditional build process using Jenkins, which helps integrating customized build
scripts with WCBD tool to deploy web commerce and order management applications across various
environments.
* Customizing build scripts using ant and integrating the IBM ClearCase for code compilation.
* Maintain the latest backup of all instance environments for restore during deployment failure.
* Deploying WebSphere commerce applications and order management system (sterling) on various
release across environments as per the schedule plan and inform stakeholders.
* Backing up the application servers with the latest configuration and maintaining the latest
backup before deploying the build package.
* Troubleshoot the deployment failure at the WebSphere application server.
* Automate scripts for data refresh from the production environments to the staging
environments.
* Automated release management process for the various applications deployed on environments
using Jenkins.
* Creating GIT Repositories and creating the pull request and code merge and create local
workspace and push code.

12/2011 - 01/2013
Web Hosting and Infrastructure Engineer
GlaxoSmithKline

Project-01
GlaxoSmithKline, (Offshore) 12/2011 -1/2013
Web Hosting and Infrastructure Engineer
Responsibilities:
* Configuring, troubleshooting Apache Web servers, DNS/, FTP servers & Database Server
* Compiling and Configuring Apache and Optimization for better performance.
* Maintenance of IBM x3650, IBM Xeon, Dell PowerEdge 2950, 2850, 1850 Intel Processor-based
platform server Hardware.
* Hosting java-based web applications on Apache/Tomcat and supporting various technologies like
ATG Adobe CQ, Oracle 11G on Linux based virtual servers.
* Web Hosting Skills Apache Tomcat, Linux, Oracle ATG, Adobe CQ, Linux, Oracle 11G, Environment
Nonproduction /Production Contribution.
* Tuning the application servers to deliver the best performance, coordinate with the
development team, analyze KDUMP for the application slowness, and provide resolution.
* Configuring and hosting various applications on name, based Virtual host and redirect http
webpages.
* Securing the http webpages with PKI certificates and wildcards.
* Backup and restore multiple slave nodes and configure the load balancing between slave nodes
with Master-slave architecture.
* Install edit and remove apache modules, redirect policies and frequent access webpages and
apply downtime pages on webserver during maintenance.

11/2010 - 11/2011
Systems Engineer
Serus Corporation

Responsibilities:
* Setting up the product for client based on the requirement at the various environment.
* Configured the intrusion detection and prevention system across various environments at the
enterprise with OSSEC security system.
* Responsible for client-based Supply chain Application Deployed on Production/Staging.
* Documenting the Steps executed on each configuration and corresponding module supported for
across environments.
* Managing access to the code repository and coordinating with the developers and other team
members.
* Tuning the Java heap for better performance.
* Apache server configuration, Oracle database instance creation and database connectivity.
* Finding the Root cause analysis of app issues based on tomcat logs.
* Configuring Bugzilla for issue tracking managing for all environments.
* Creation and implementing SSL/TLS certificate on tomcat and Apache web applications Includes
Third Party Integration.
* Monitoring the application performance using tools like Nagios, Zenos.
* Administered application stacks and executed performance tuning.

11/2007 - 10/2010
Systems Engineer
CMS Computers Ltd

Responsibilities:
* Responsible for managing 500 + servers and the backups including Windows, Linux based servers.
* Managing IT infrastructure that includes IBM Blade servers and network interconnecting various
office for Insurance underwriting major insurance HUB.
* Configuring Cisco 1800 routers and inter-connectivity between corporate office
* Implemented in-house servers, used for database, file / print serving, and Medical Insurance
Underwriting.
* Coordinating with the third-party vendors for hardware failure.
* Inventory management, Documentation and Vendor Negotiation.

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