SUMMARY

• AWS Certified with 7+ years of experience in IT industry as Cloud Operations Engineer, AWS Engineer, Azure/AWS DevOps Engineer, Linux System Admin and Linux System Engineer which also includes Troubleshooting and performance issues . Extensive Hands on experience in Amazon Web Services, Microsoft Azure Cloud, Release/Build Management.
• Infrastructure as a Service platform in AWS performed duties that includes cloud services such as EC2, S3, IAM, MFA, VPC, Cloud watch, ELB, Auto Scaling, Security groups, routing, NACL’s, kinesis, AMI, DynamoDB, Route 53, Cloud Formation, Elastic Beanstalk, Glacier, Lambda.
• Experience with designing and configuring secure Virtual Private Cloud (VPC) through private and public networks in AWS by creating various subnets, routing table, Network ACL, NAT gateways.
• Experience in migrating complete application infrastructure from physical datacenter to AWS cloud which includes Application, Database and Data Migration.
• Experienced in Automating, Configuring, Securing and deploying infrastructure in AWS environment using with Terraform, Ansible, Cloud Formation.
• Proficient on working with AWS security identity tools like IAM, Certificate manager, Key Management Systems(KMS) to improve manageability, access governance, provisioning, information security and privacy.
• Experience in dealing with Windows Azure IaaS - Virtual Networks, Virtual Machines, Cloud Services, ResourceGroups, Express Route, Traffic Manager, VPN, Load Balancing, Application Gateways, Auto-Scaling.
• Experience working with various Azure services like Compute (Web Roles, Worker Roles), Azure Websites, Caching,SQL Azure, NoSQL, USQLS, Storage, Network services, Data Factory, Azure Active Directory, API ManagementScheduling, Auto Scaling, and PowerShell Automation.
• Expertise in Azure Scalability and Azure Availability - Build VMs availability sets using the Azure portal to provideresiliency for IaaS based solution and Virtual Machine Scale Sets (VMSS) using Azure Resource Manager (ARM) to manage network traffic.
• Experience working on Azure Fabric, Micro services & Docker Containers in Azure. Ability to create scripts usingAzure PowerShell during automation and built-in process.
• Written templates using Terraform to manage, improve, and deploy infrastructure on cloud with EC2 instance, Elastic Block Storage (ELB) and Security groups in JSON.
• Experience on working with on-premises network, application, server monitoring tools like Nagios, Splunk, AppDynamics and on AWS with Cloud Watch monitoring tool.
• Well experienced in deployment & configuration management and Virtualization. Strong Experience on Administration and Troubleshooting of Azure IAAS Components (VM, Storage, VNET, OMS, NSG, Site to Site VPN, RBAC, Load Balancers, Availability Sets).
• Experience in Automating, Configuring and Deploying Instances on Azure environments and in Data centers
• In-depth Knowledge with spectacular working experience of build and automation tools such as Vagrant, Oracle Virtual Box, Git, maven, ANT, Gradle, Jenkins, Bamboo, chef, Ansible, IBM uDeploy, SonarQube .
• Experienced in branching, tagging and maintaining the version across the Environments using SCM tools like Git, GitLab, GitHub and Subversion (SVN) on Linux and windows platforms
• Hands on Experience in Cloning, merging, pull and push the code from version control systems and commit the changes to make persistent using Git, Apache Sub Version (SVN)tools.
• Experience in using Artifactory Repository, Nexus for Maven builds. Worked on maven, Gradle, Ant build, and automation tools involved duties like for the development of build artifacts on the source code.
• Worked on Continuous Integration/ Continuous Deployment tools (Jenkins, Bamboo) involved in duties for auto deployment such as creating (pipeline projects, Freestyle projects), continuously (pulling code from developers, code testing, deploying, and committing changes).
• Configured Git with Jenkins, clone project from local or centralized repository and schedule jobs using POLL SCM option, build scripts using MAVEN build tools in Jenkins.
• Handling multiple builds by creating master and slave nodes, installation of plugins depending on requirement of the builds in Jenkins.
• Extensive experience in Application Deployments and Environment Configuration using configuration management tools like Ansible, Chef and Puppet. Experienced in Writing Python modules and for Ansible customizations.
• Experience in Setting up the build and deployment automation for Terraform scripts using Jenkins.
• Provisioned the highly available EC2 Instances using Terraform and cloud formation and wrote new plugins to support new functionality in Terraform.
• Skillful in writing playbooks, modules, and roles. Created playbooks and deployed on various software applications for virtual instance (provisioning, configuration, and management) using Ansible. Developed ansible playbook using YAML (data serialization code) to manage system configurations.
• Hands on experience in Chef Enterprise. Installed workstation, bootstrapped nodes, wrote recipes and cookbooks and uploaded them to chef server.
• Configured and setup Cluster environment in Kubernetes with a master and 3 minions. Collaborating with development team for creating Docker and Kubernetes containers for each micro-service and installed all required dependencies for each container.
• In Docker performed duties such as Maintaining, managing, and configuring the containers, virtualization of applications. Making sure packed with required dependencies.
• Setting up and adoption of continuous delivery tool chain for DevOps environment SonarQube, Nexus, and UDeploy.
• Good hands-on experience with various scripting tools such as Python, Shell, Bash, PowerShell and Ruby forautomating various cron jobs and notification process. Automated Nagios alerts and email notifications using Python script and executed them through Chef.
• Developed Python based scripts to generate compliance reports in cloud environments and also made automationsfor developing audit reports in GitHub using GitHub API’s in Python scripting.
• Providing efficient and secure virtual environment using VM ware ESXi making sure of its availability all time, reliability, performance level, Backup/restore the data of the server.
• Using Vagrant, my job role is to provide virtual environment by building and launching virtual machines used for Linux kernels.
• Strong Experience and professionally skilled in Linux. worked as system engineer and administrator on various distributions of Linux such as RHEL, RHCSA/RHCE, CentOS.
• Installed and configured Linux servers, created NFS (Network File system) for file sharing over network, created LVM (Logical volumes) for disk space allocation, worked on NTP (Network time Protocol) for maintaining clock synchronization over network and time scheduling to run scripts using Cron jobs.
• As a user administrator performed duties like Monitoring and controlling the system process, setting up user environments (creating and adding accounts or groups. Providing secure access by installing and configuring SSH (secure shell access).
• Configured Virtual Linux machines using Oracle Virtual Box for testing purpose and worked on solving Troubleshooting issues (boot problems, hardware and software problems, network connectivity).
• Experience with VMware virtualization and infrastructure management.
• Experience in Monitoring, performing Health Checks, installing patches and upgrading hardware on the production servers
• Experience in implementation of VMWARE ESXi 4.1, vSphere 4.0/4.1/5.0, VMware Virtual Center and VMware Workstation.
• Proficient in Active Directory, Group Policy, DNS, DHCP and FTP environment

TECHNICAL SKILLS

Cloud Technologies: Amazon Web Services, Azure

CI/CD Tools: Jenkins, Bamboo

SCM Tools: Git/Git hub, SVN, Bitbucket

Build Tools: Maven, Ant, Gradle

Configuration Management Tools: Ansible, Chef, Puppet

Monitoring: Splunk, Nagios, ELK, Cloud Watch

Containerization Tools: Docker, Kubernetes

Scripting languages: Ansible, Terraform, Bash, Python, Groovy

Application Server: Apache Tomcat 8.0, IBM WebSphere

Virtualization Tools: Vagrant, VMware ESXi

Operating System: RHEL, Centos 5.x/6.x/7/8, Linux-Ubuntu/Fedora, windows XP/7/8/10, AWS Linux CLI

Databases: MySQL, PostgreSQL, SQL server, Mango DB, DynamoDB (NO SQL)

Networking: SSH, FTP, DHCP, VPC, Route 53, HTTP/HTTPS, SMTP

PROFESSIONAL EXPERIENCE

Confidential, Boca Raton, FL

Cloud Operations Engineer

Responsibilities:

• Worked in an Agile-based environment to build, operate, monitor, and maintain AWS Services right from Development to Deployment.
• Work with team that leverages Agile methodologies to ensure around-the-clock availability andperformance of cloud-based environments.
• Hands-on Experience with AWS Services such as EC2, AMI, Snapshots, EBS, S3, S3 Glacier, Load balancers, security groups, VPC (Virtual Private Cloud), CloudTrail, CloudWatch, Trusted Advisor, IAM, SNS.
• Performed Upsize and downsize of the EC2 Instances in AWS for Cost Optimization that are analyzed by AWS Compute Optimizer.
• Used AWS Lambda to run servers without managing them and to trigger to run code by S3 and SNS and Converting existing AWS infrastructure to server less architecture (AWS Lambda, Kinesis) deployed via Terraform and Aws cloud formation.
• Created Python Scripts to Automate AWS services which include web servers, ELB, Cloud front Distribution, database, EC2 and database security groups, S3 bucket and application configuration, this Script creates stacks, single servers or joins web servers to stacks.
• Created IAM policies for delegated administration within AWS and Configure IAM Users/Roles/Policies to grant fine-grained access to AWS resources to users.
• Involved in setting up permissions at user/team/group levels using AWS IAM. Also, managed console level access through IAM.
• Creating snapshots and Amazon machine images (AMI) for backup purpose. Automated snapshot and scheduled backup by creating Lambda function on AWS.
• Performed automated implementation/ deployment duties in AWS (depending on the traffic load switch between instances using Elastic Load Balancer, using auto-scaling created instances depending on load on network).
• Experienced with AWS CLI in gathering facts, managing, updating resources in AWS, and also worked on Bash Shell Scripting to manage the RedHat/CentOS Servers in AWS.
• Experienced in writing Terraform scripts & Ansible Playbooks to automate, configure & Manage Cloud services in AWS.
• Worked on Microsoft Azure (Public) Cloud to provide IaaS support to client. Designed, configured and deployed Microsoft Azure for a multitude of applications utilizing the Azure stack (Including Compute, Web & Mobile, Blobs, Resource Groups, Azure SQL, Cloud Services, and ARM), focusing on high - availability, fault tolerance, and auto-scaling.
• Automated various services and application deployments with Bash shell Scripting on CentOS and RHEL in AWS.
• Using Bash Shell Created Pulp repository & automated the process to manage in pulling common updates to all the Red Hat & CentOS Servers that are in different environments (dev, preprod, deployment & production).
• Worked extensively in Patching servers, managing file permissions and Troubleshoot issues on Linux Distributions such as RedHat, CentOS and Ubuntu.
• Working Knowledge on Ansible Tower from creating a template & Inventory, Scheduling Jobs, setting up Permissions user/team level to Deploy and Manage AWS Services.
• Hands-on experience with Splunk to filter out the data such as users’ access & time since last connection for all the AWS resources.
• Deployed full managed web services using Elastic Bean Stalks and SNS and CloudWatch and configured path-based routing using ALB for HTTP/HTTPS traffic and NLB for TCP/IP traffic.
• Configured and managing security groups and VPC in Automated way. Also developed various automated provisioning pipelines using Ansible for various AWS resources.
• Designing and implementing fully automated server build, management, monitoring and deployment solutions spanning multiple platforms, tools and technologies including Jenkins Nodes/Agents, SSH, Amazon EC2 and packaging, deployment and testing.
• Automated CI/CD with Jenkins, build-pipeline-plugin, maven, GIT Set up Jenkins master/slave to distribute builds on salve nodes. Integrating with Git and Jira to trigger builds using Web Hooks and Slave Machines.
• Created Jenkins pipelines for the snapshot process, s3 buckets and triggering Jobs whenever a new commit happen in GitHub repository.
• Setup Jenkins tool to integrate the Projects and maintained Jenkins with continuous integration and Ansible Tower to automate metadata migration from DEV to Preprod environment, from Preprod to Deployment environment and From Deployment to Production environment.
• Developed microservices on boarding tools leveraging Python and Jenkins allowing for easy creation and maintenance of build jobs and Kubernetes deploy and services.
• Managed GitHub repositories for branching, merging and tagging and developing Shell/Groovy Scripts for automation purpose.
• Worked as GitHub Support to grant access to the users at organization/repository level and troubleshoot issues with login. Also, Git is part of our day-day operations such as Pull, Push, merge and reviewing the code as well.
• Worked on Windows active directory using PowerShell to remove dead Computer objects in AWS which also including working on opening of firewall rules such as Active directory web services, TCP ports.
• Managed Kubernetes minions & masters to patch with latest security updates by evicting and uncording the nodes during the process. created Docker and Kubernetes containers for each micro-service and installed all required dependencies for each container
• Gained Experience on containerization management tool Kubernetes on the aspects of implemented a production ready, load balanced, highly available, Fault tolerance Kubernetes infrastructure
• Deploying and maintaining multi-container applications through Docker, Orchestrated application Using Kubernetes.
• Configuring and installing various cloud network interfaces like Internet Protocols, Networking, TCP/IP, VPC, VPN, Firewalls and Load balancers.
• For Bug tracking/ticketing used Atlassian JIRA and experienced in creating/assigning cards based on priority levels.
• Participated in on-call rotation, receiving, and responding to daytime and after-hours alerts
• Performed after-hours or weekend system maintenance and application support as needed
• Used ServiceNow for change management and incident management processes.
• Update and enhance written processes and documentation with a focus on ease of understanding and completeness

Confidential, Saratoga Springs, Utah

AWS DevOps Engineer

Responsibilities:

• Hands-on Experience with AWS Services such as EC2, AMI, Snapshots, EBS, S3, S3 Glacier, Load balancers, security groups, VPC (Virtual Private Cloud), AWS Athena, AWS Glue, AWS EMR, AWS RedShift, Amazon ECS, Amazon EKS, Kinesis, CloudTrail, CloudWatch, Trusted Advisor, IAM, SNS.
• Leveraged AWS Cloud Services such as EC2, auto-scaling and VPC to build secure, highly scalable, and flexible systems that handled expected and unexpected load bursts.
• Implemented Server-less architecture using AWS Lambda with Amazon S3 and Amazon Dynamo DB . Also, migrated 300+ servers from on premise to AWS Cloud.
• Experience in converting existing Terraform modules that had version conflicts to utilize cloud formation during Terraform deployments to enable more control or missing capabilities.
• Implemented AWS high availability using AWS Elastic Load Balancing (ELB) which performed balance across instances in multiple availability zones.
• Worked on ELK architecture and its components like Elastic search, Log stash and Kibana for log analytics. Handled installation, administration, configuration of ELK stack on AWS. Performed Log analysis such as full text search, application monitoring in integration with AWS Lambda and cloud Watch.
• Write Terraform scripts from scratch for building Dev, Preprod, Deployment and Prod environments.
• Extensively involved in infrastructure as code, execution plans, resource graph and change automation using Terraform . Managed AWS infrastructure as code using Terraform.
• Created Terraform scripts for EC2 instances, Elastic Load balancers and S3 buckets. Implemented Terraform to manage the AWS infrastructure and managed servers using configuration management tools like Chef and Ansible . collected the data in kinesis data streams for data analysis and integrated Amazon kinesis service to IBM Cognos tool to have the pictorial representation of heavy data.
• Used Kinesis to Collect the data metrics for simple data analysis and reporting the application logs.
• Wrote ANSIBLE Playbooks with Python , SSH as the Wrapper to Manage Configurations of AWS Nodes and Test Playbooks on AWS instances using Python. Run Ansible Scripts to provision Dev servers.
• Administered and created a Build, Test, deploy chain environment using Jenkins, and SVN/GIT with Dev/Test branching model for weekly and scheduled releases. Automated the merging of branches as per the requirements.
• Maintenance of source code in GIT . Branching, Creating LABELS, merging of codes on GIT for QA testing and release.
• Worked on Continuous Integration environment and for End-to-End automation for all build and deployments (Jenkins, Nexus and Continuous delivery environment (puppet, Yum, (CI and CD process) Using Jenkins , Nexus, Yum and ANSIBLE.
• Created Docker compose file using YAML for deploying MEAN Stack (MongoDB, Express, AngularJS, Node JS) applications onto Docker containers before deploying them into production environment.
• Responsible for building application full automation pipeline for deployment into AWS using Jenkins, Artifactory, Chef and Terraform.
• Involved in using of Docker to build images and OpenShift to manage Micro services . Experience in deploying Micro Services to App Servers and Database Changes to Oracle, db2, MSSQL and MYSQL databases.
• Used Jenkins and pipelines to drive all micro services builds out to the Docker-registry and then deployed to Kubernetes , Created Pods and managed using Kubernetes.
• Initiated Microservices application through Docker and Kubernetes cluster formation for scalability of the application. Deployed Microservices with Ansible Playbook in Docker containers
• Automated Compute Engine and Docker Image Builds with Jenkins and Kubernetes, created private cloud using Kubernetes that supports DEV, TEST and PROD environments.
• Experience in integrating Unit Tests and Code Quality Analysis Tools like Junit and Selenium.
• Continuous Integration principles and practices for the Billing Development Team using Jenkins JNLP Nodes, Subversion, ClearQuest, JUnit, Atlassian JIRA.
• Install SonarQube and configured it to run code quality tests and reports after Maven build scripting is initiated. Have used other code quality tools.
• Created nightly builds with integration to code quality tools such as SonarQube and created quality gates in SonarQube dashboard and enforced in the pipelines to fail the builds when conditions not met.
• Integrate Monitoring and reporting tools for e.g. Nagios with DevOps automate workflow and with APM tools AppDynamics worked on monitoring from the scratch across the infrastructure, monitoring the log management and production health.
• Used Docker to containerize custom web applications and deploy them on Digital Ocean with Ubuntu instances through SWARM Cluster and to automate the application deployment in cloud using Vagrant .
• Experience in writing Bash shell scripts and Python to automate the administrative tasks and management using Cron.
• Experience with working on multi-platform servers using Nagios tool, utilized this tool to configure and monitor. Worked on user administration setup, maintaining account, and monitor system performance.

Confidential

AWS/Azure DevOps Engineer

Responsibilities:

• Involved in designing and deploying a multitude application utilizing almost all the AWS stack (Including EC2, Route53, S3, RDS, DynamoDB, SNS, SQS, IAM) & used MySQL, DynamoDB and Elastic Cache to perform basic database administration.
• Hands-on Experience in creating Azure virtual machines, Implement and manage virtual networking within Azure and connect to on-premises environments.
• Worked on provisioning and maintaining the AWS and Azure instances and storage for builds, build deployments.
• Configured VMs availability sets using Azure portal to provide resiliency for IaaS based solution and scale sets using Azure Resource Manager to manage network traffic.
• Deployed Puppet and Puppet DB for configuration management to existing infrastructure.
• Used Puppet server and workstation to manage and configure nodes. Writing Puppet manifests to automate configuration of a broad range of services.
• Configured Monitoring tools like Nagios and Splunk , worked on User administration setup, maintaining account, monitor system performance.
• Experienced in installing, configuring, tuning, and troubleshooting of RedHat enterprise Linux and VMware ESXi 6.0 environment and extensive knowledge of multiple client Operating Systems such as Windows, Unix and CentOS .
• Helped in creating a next generation platform using Core OS Linux with fleet / Kubernetes based on docker containers running in a microservices ecosystem on VMWare ESXi.
• Install, configure, maintain, and troubleshoot enterprise-wide Apache web servers and Tomcat application containers in a large RedHat Linux/CentOS environment.
• Experienced in connecting with the customers to website users with java applications or servlets by using IBM WebSphere 8.
• Deployment of the Business processes by creating JAR, WAR, and EAR files to IBM WebSphere application servers. Worked on deployment of Application servers like Apache tomcat on Linux servers and integration with Apache web server.
• Experienced in handling multiple application server nodes using WebSphere Application Server Network Deployment Manager.
• Performed WebSphere configuration, backup and restoration tasks by using backupConfig, restoreConfig commands etc.
• Hands-on Experience in IBM Connect Direct Secure + configuration (Windows and Linux)
• Used Apache Tomcat as application server for deploying the artifacts, Automated the process of deployment to Apache TOMCAT Application Servers by developing Python Scripts.
• Extensive experience using Maven as build tool and writing POM files to automate the build process for the new projects and for the building of deployable artifacts ( jar, war & ear ) from source code.
• Worked on Jenkins to create builds and pass new builds to IBM Urban code/UDeploy for deployment. Processed requests for deployments to environments in UDeploy.
• Participated in installing plug-in into the Jenkins server to provides the ability to publish artifacts into an UDeploy Component.

Confidential

System Admin

Responsibilities:

• Experience in administering Linux. Experience in Installation, Configuration, Backup, Recovery, Maintenance, Linux.
• Expertise in Installation, Configuration, Integration, Tuning, Backup, Crash recovery, Upgrades, Patching, Monitoring System Performance, System and Network Security and Troubleshooting of Linux/Unix Servers.
• Set up user permissions and group login ID's, printing parameters, network configuration, password, resolving permissions issues, user, and group quota.
• Monitoring System Performance of Virtual memory, Managing Swap Space, Disk utilization and CPU utilization, manage System processes, software patches and packages
• Experience in Creation and managing user accounts, security, rights, disk space and process monitoring of Red hat Linux . Installation & Configuration of Logical Volume Manager - LVM .
• Installation and up gradation of Packages and Patches configuration management, version control, service pack. & reviewing connectivity issue regarding security problem.
• Experience in configuration the protocols like DNS, NFS, FTP, remote access, and security management.
• Experience in Package Management using Red Hat RPM/YUM and Red Hat Satellite server.
• Created Firewall rules for new servers to enable communication with applications and production support of Apache, PHP, MySQL, Tomcat including installation, configuration, management, and troubleshooting.
• Led daily Linux environment operations and support, delegating day-to-day activities to other engineers as appropriate.
• Experienced in writing Bash shell scripts and Python to automate the administrative tasks and management using Cron.
• Developed Cron jobs and Shell Scripts for automating administration tasks like file system management, process management, backup and restore.
• Remote system administration using tools like SSH (secure shell), Telnet , and Rlogin.
• Administrating production servers/network infrastructure that includes Windows Administration of Domain Controllers, IIS Web Servers HTTP/S, FTP and SMTP, Exchange 2003/2010 Mail Servers, NAS, File and print Servers, RADIUS, Blackberry Enterprise Server and Terminal Servers on Windows 2003/2008/2010 .
• Responsible production support of Active directory AD, GPO, Domain users, Users and groups and given appropriate permissions, shares and privilege to access LAN and Domain environment.
• Administrating/Responsible production Exchange 2003 Email Server, creating/disabling users, Mailboxes management, public folders administration, monitoring server health, LDAP, smtp traffic/queues, Resolving Outlook issues.
• Working with storage team on EMC Storage issues and getting the EMC storage devices for new file systems.
• Creating Linux Virtual Machines using VMware/Vagrant Virtual Center and configuring servers with required software packages.
• Managed TCP/IP packets & DHCP servers resolved TCP/IP network access problems for the clients and worked with various TCP/IP implementations like NFSv4, NIS, DNS and DHCP .
• Installed/Configured/Maintained/Administrated different servers: DNS , DHCP , NIS , NFS , Postfix , Send Mail on Linux.
• Troubleshooting Network, memory, CPU, swap and File system issues, TCP/IP, NFS, DNS, SMTP in Linux and Solaris servers.

Confidential

System Engineer

Responsibilities:

• Systems Installation, Configuration, Upgrade, and general systems maintenance
• Daily Administration support of Red Hat Enterprise Linux 5/6, performance monitoring and capacity planning on RHEL servers and Setting up and implementation RHEL Kick start .
• Perform Security Administration on Linux/Unix systems, Used the remedy ticketing system to troubleshoot and resolve issues with the servers.
• Set up user permissions and group login ID's, printing parameters, network configuration, password, resolving permissions issues, user, and group quota.
• Experienced in writing Bash shell scripts and Python to automate the administrative tasks and management using Cron.
• Monitoring System Performance of Virtual memory, Managing Swap Space, Disk utilization and CPU utilization, manage System processes, software patches and packages.
• Manage Windows Server 2003/2008 environment with a team of other Windows administrators.
• Implemented Microsoft DHCP, DNS, WINS, Domain trust relationship, fault tolerance, file and print services, user and group management.
• Maintain Microsoft Active Directory Environments. Utilize Active Directory Domain Services, Users and Computers.
• Provide end users with hardware and software support on time within the support SLA.
• Built installed and configured servers managed them remotely for software upgrades and patches. Tested antivirus updates, OS patches in test environment before deployment.
• Performed hardware maintenance, upgrades, and component-level troubleshooting on Linux Red Hat servers. Perform File System maintenance, Network File System ( NFS ) for storage, backups and restores, Swap Configurations.
• Virtual server installation using Vagrant, VMware ESX/ESXi installation and Used Logical Volume Manager for the management of Volumes including creation of physical and logical volumes on Linux. Apache Web Server Installations, Configurations, and content management.
• Support developers in using puppet as a configuration management tool in managing users, resources, deploying servers from Puppet modules.
• Server Hardening Network troubleshooting, the network troubleshooting by using 'netstat', 'ifconfig' and 'tcpdump' etc.
• Perform regular system administration tasks and perform troubleshooting to keep the Linux/Unix environments running smoothly.