Nandha Kumar Venkatesan

CLIENT: CELEBRUS

PROJECT : CLOUD PROVISION AND DEPLOYMENT

• Implemented CI/CD pipelines using Jenkins, GitLab, and Docker, reducing deployment time by 50% and increasing overall productivity.
• Managed and maintained Kubernetes clusters for container orchestration, ensuring high availability and scalability of applications.
• Collaborated with development and QA teams to automate testing and deployment processes, resulting in a 30% reduction in manual intervention.
• Worked with development teams to create a streamlined pipeline for continuous delivery.
• Utilized Terraform to create infrastructure as code, allowing for easy and repeatable deployment of resources.
• Configured Jenkins to automatically build and deploy code changes to AWS.
• Created and maintained AWS infrastructure, including EC2 instances, load balancers, and databases.
• Utilized Terraform and AWS CloudFormation for infrastructure-as-code (IAC) management, streamlining
• infrastructure provisioning and reducing configuration errors.
• Monitored application performance and system health using tools like Prometheus, Grafana, and ELK Stack,proactively addressing issues and minimizing downtime.
• Developed custom scripts and tools using Python and Bash to automate routine tasks and improve overall efficiency.
• Ensured security and compliance by implementing best practices, such as regular patching, vulnerability scanning,and access control management.
• Supported the management of AWS infrastructure, including EC2, S3, RDS, and VPC, ensuring optimal performance and cost efficiency.
• Participated in the migration of applications to a containerized environment using Docker, improving scalability and resource utilization.
• Collaborated with cross-functional teams to troubleshoot and resolve production issues, minimizing downtime and improving customer satisfaction.
• Designing and deploying cloud infrastructure. This includes selecting the appropriate AWS services, configuring them to meet the organization's requirements, and deploying them in a secure and scalable manner.
• Managing and scaling cloud resources. This includes monitoring resource usage, provisioning new resources as needed, and deprovisioning unused resources to optimize costs.
• Securing cloud assets. This includes implementing security controls, such as firewalls, encryption, and access control, to protect cloud data and applications.
• Monitoring cloud performance and availability. This includes using tools such as CloudWatch to track resource usage, performance metrics, and application availability.
• Troubleshooting cloud problems. This includes investigating and resolving issues that arise with cloud infrastructure, applications, or services.
• Providing support to users. This includes answering questions, providing guidance, and troubleshooting issues for users of cloud-based applications and services.
• Managing budgets and costs using CloudWatch. This includes tracking log monitoring costs, identifying cost-optimization opportunities, and recommending cost-saving measures.
• Adhering to compliance regulations using CloudWatch. This includes ensuring that log monitoring meets the organization's compliance requirements.

CLIENT: CITI BANK , CALIFORNIA

PROJECT: SAS Infrastructure as as Service

• Design and implement the tools and processes used for deployment and change management Plan and execute configuration management and disaster recovery drills
• Own, maintain, and continuously improve all systems provided as a service, such as monitoring and datastores Also engage in service capacity planning and demand forecasting, anticipating performance bottlenecks Automate resource provisioning and allocation process as well
• Deployed and implemented SAS grid servers for CITI Bank cloud infrastructure
• Worked on CITI PuppetServer Migration work and upgraded software to next available version
• Worked on CITI COB Failover activity for continuous 2 years with much improved and stable methodology Automating patches , upgrades , commissioning of servers on network using puppet Enterprise
• Manage L2,L3 support teams and provide(L4 support ) in-depth analysis of issues across our infrastructure Deliver automation of current patching process, to support the migration of workload away from the current infrastructure teams
• Actively participate in the OS security fixes and system upgrade across infrastructure
• Maintain services in production environments by measuring and monitoring availability, latency, and overall system health
• Configuring and Managing NFS filesystems exports shared across Linux Infrastructure Regularly Working on critical incidents and provide RCA on resolving the issues Actively participating on new Linux server builds and configuration implementation
• Ensure Availability and Performance of Production/COB/UAT/Dev Services across CITI infrastructure
• Worked on Developing new provision for their existing infrastructure over OpenShift Cluster.

CLIENT: TOSHIBA UK,London

PROJECT: WEB APPLICATION SUPPORT ( JBOSS & APACHE)

• Manage JBOSS Application running behind Broadcom Web Application Firewall & Reverse Proxy servers
• Setup Apache Reverse Proxy to ensure traffic pass through proxy Loadbalancing , manage web traffic to backend
• application servers.
• Configure WAF virtual servers , pools & create traffic rules to manage web traffic before delivering to backend application servers
• Actively working on P1 incidents reported by Direct customers as well as B2B customers.
• Part of Security incident Team - Provide work plan in identifying vulnerability attacks and implement patches during patching cycle
• Monitor Linux servers health checks and process management using tools like zabbix , Xymon and Nagios.

CLIENT: TOYOTA UK, London

PROJECT: WEB APPLICATION SUPPORT ( NODEJS & APACHE)

• Worked on AWS Cloud infrastructure services such as EC2, S3 , EBS , RDS & ELB .
• Experience writing bash scripting and debugging python/perl scripting.
• Worked on supporting ubuntu Servers OS upgrade and apache web application deployments across AWS estate.
• Deploy configurations and manage applications using CI/CD tools like ( puppet , GIT,Jenkins ) .

• Drive improvements in operational excellence and focus on improving operational tools used in production
• environment.
• Strong engagement with the India, US and Asia based global network engineering teams.
• Diagnose and investigate unique and complex systemic problems and application service failures.
• Troubleshoot issues across the entire stack – hardware, software, application and network.
• Managing the applications by handling the issues and do the necessary configuration changes.
• Drive service performance analysis and tuning, service capacity planning and demand forecasting.
• Perform systems administration activities to ensure the smooth operation of applications across multiple platforms.
• Coordinate and communicate with impacted stakeholders as per incident management process.
• Triaging and resolving service / application outages for Symantec ESS.
• Scripting experience in actively writing/modifying code to improve monitoring and automation (Perl, Python,Shell, etc.) for day-to-day activates and repetitive tasks.
• Creating and auditing run books/knowledge base for troubleshooting and supporting applications.
• Lead maintenance planning activities which impact production applications.
• Providing level 2 support for Symantec Products like Email gateway , Webservices , Integrated Spam managers ,hosted platforms.
• Doing process improvements, automation, ensuring of SLA's, analyzing and implementing various monitoring tools.
• Incident management for all the supported products and services over the different time zones across regions
• Lead maintenance planning activities which impact production applications.
• Working as an integration lead for onboarding properties to Tier 2 team.
• Comfortable in troubleshooting and opting solution with substantial experience in end-to-end ownership of issues
• and execution of small/medium size projects.
• Coordinate and communicate with impacted stakeholders as per incident management process.
• Triaging and resolving service / application outages for Symantec ESS
• Scripting experience in actively writing/modifying code to improve monitoring and automation (Perl, Python,
• Shell, etc.) for day-to-day activates and repetitive tasks
• Creating and auditing run books/knowledge base for troubleshooting and supporting applications
• Lead maintenance planning activities which impact production applications
• Providing level 2 support for Symantec Products like Email gateway , Webservices , Integrated Spam managers ,
• hosted platforms
• Doing process improvements, automation, ensuring of SLA's, analyzing and implementing various
• monitoring tools
• Incident management for all the supported products and services ove

• Make suggestions on designing the network that suit organization's requirements with the help of various computer designing applications.
• Propose different methods in updating hardware components of network and server and make it more user friendly.
• Assist in the integration, installation and evaluation process of products and systems.
• Ensure uninterrupted connectivity and smooth flow of information within the organization and outside and report any shortcomings.

• System Administration of Linux Hosted Servers(Red Hat Enterprise Linux).
• Managing E-Mail Server, Proxy Server, DNS Server, File Server and Firewall.
• Upgraded the Linux Servers from EL4 to EL5 for most of the clients.
• Configuring the Routers and NATING to the server for some of ports according to the customer needs.
• Adding static routes in the servers to connect the branch offices using WAN setup.
• Configuring Virtual Host, SSL Certificate Settings in Apache Web Server
• Configuring NFS,LDAP, AutoFS, Samba, Squid and DNS on Linux Environment.
• Performing routine task such as adding, modifying and deleting user accounts using command line, checking log files and monitoring system process on Linux Servers.
• Providing the security to the system by restricting root access, controlling remote access, ftp users, su attempts
• and setting file permissions to the user
• Configuring Auto copy the mail server backup, configuration files and users mail box from server to Windows Machines.
• Experienced in Writing Bash Shells Script to Automate the Installation and Configuration process of various services and backup.
• Configured Standard proxy for the clients.
• Checking file system consistencies and troubleshoot by using fsck and monitoring file system usage by using DF and du commands.
• Creating and modified swap space in online using commands in Linux servers.
• Configuring DNS Servers and DNS clients.
• Writing shell scripts for system administration tasks such as monitoring file system size, CPU, Memory, Mail queue and network performance and generation of daily system report.

• Develop and maintain LAN/WAN, Internet, and wireless communication networks
• Install, configure, administer, and troubleshoot operating systems in desktop environment
• Plan and implement networks using hubs, routers, switches and other networking hardware and software.