PROFESSIONAL SUMMARY:

• 6+ years’ experience in IT industry as Cloud Engineer, DevOps Engineer, System Administrator and offered Production Support to various applications on Red Hat Enterprise Linux, CentOS, Debian, Ubuntu, VMware, Windows Server 2008 - R2/2012-R2 and expertise in working with various cloud platforms like Amazon Web Services ( AWS), Azure, Google and OpenStack .
• Worked with different migration services like AWS Server Migration Service (SMS) to migrate on-premises workloads to AWS in faster and efficient way using Rehost “lift and shift” methodology and AWS Database Migration Service (DMS), AWS Snowball to migrate large amounts of data and Amazon S3 Transfer Acceleration.
• Experience in performing homogenous migrations such as oracle to oracle and heterogeneous migrations between different database platforms such as Oracle to Amazon Aurora and Microsoft SQL to MySQL using AWS Database Migration Service (DMS).
• Experience in several AWS Services including EC2, VPC, IAM, S3, RDS, ELB, Route 53, CloudWatch, Cloud Formation Templates, CloudFront, CloudTrail and administering them using AWS Console and AWS Command-line Interface .
• Created Cloud Formation Template to create Auto Scaling Groups , Route 53, DNS , back-end database , Elastic load balancer , VPCs , Subnets , Security Groups , Cloud Watch , S3 , IAM roles, RDS DB instances, and to provision those instances and configure those resources to work together reducing the manual effort.
• Experience in Deploying and monitoring Microservices on various platforms like AWS ECS , Kubernetes , OpenShift . Developed Kubernetes Pod definitions, Deployments and used Helm Charts to version control complete deployment strategies.
• Experience in Azure virtual machine (using standard templates or as per SDD ) app service, SQL Database , storage , Azure Active Directory , Virtual network , load balance , Application gateway , VPN gateway , and Traffic manager.
• Configured Azure Virtual Networks (VNets), subnets, Azure network settings, DHCP address blocks, DNS settings, security policies and routing and Network Security Groups ( NSGs ) to control inbound and outbound access to network interfaces ( NICs )
• Experience working with Configuration Management Tools like Chef , Ansible and Puppet to implement Infrastructure as Code to automate the repetitive tasks of provisioning and configuring instances and Virtual Machines and to quickly deploy critical applications on Amazon Web Services (AWS) infrastructure and on Microsoft Azure Platforms.
• Experienced in configuring Chef Workstations, bootstrapping Nodes, written Chef Cookbooks and recipes using Ruby script to Manage and Maintain Chef Servers and management application that can use Service Now data to bring computers into a desired state by managing files, services, packages installed on physical or virtual machines.
• Experienced in Automating, Configuring and deploying instances on AWS, Data centers and Azure environments, also familiar with EC2, Cloud watch, Cloud Formation and managing security groups and Nacl's for the network level security on AWS.
• Experience in configuring Ansible and written Ansible playbooks to manage Environments, configuration files, packages. Automated various infrastructure activities like Continuous Deployment, Application Server setup, Stack monitoring using Ansible Playbooks and has Integrated Ansible with Rundeck and Jenkins to deploy code into different servers.
• Developed PowerShell scripts to create Organization Units (OU) in the Active Directory, Migrated between different versions of the AD.
• Experience working on configuration management in Linux using Puppet there by developing Puppet Modules and configured manifests to automate configuration of a broad range of services like LAMP Stack, HTTP using DSL and Ruby.
• Extensively used Continuous Integration tools like Jenkins, Team city, Hudson and Bamboo for end-to-end automation of various build and deployments by Integrating Jenkins with Git, Maven, SonarQube and Nexus to automatically pull the code from source code repository, build it, perform code quality analysis and save the artifacts in Nexus Repository.
• Experience working with version control systems like Subversion, GIT and used Source code management tools GitHub, Bitbucket including command line applications.
• Implemented Continuous Delivery setup to created packages from Jenkins and to be deployed to Applications servers through Rundeck jobs with chef as the backend configuration management tool.
• Worked on Kubernetes to orchestrate docker containers of different applications. Worked on OpenShift platform in managing Docker containers and Kubernetes Clusters.
• Experience in creating Docker Containers leveraging existing Linux Containers and AMI's in addition to creating Docker Containers from scratch and Container management using Docker by writing Docker files and set up the automated build on Docker HUB and installed and configured Kubernetes.
• Provisioned slaves dynamically by implementing Docker. Created and handles multiple Docker images for installing the middleware and performing domain configuration. Created Dev/Test/Prod environments to run applications on AWS by provisioning Kubernetes clusters on EC2 instances using Docker.
• Experience in installing, configuring, and management of MYSQL, SQL Server 2008/2012/2014 , PostgreSQL, and MongoDB & Cassandra.
• Experienced in authoring pom.xml files, performing releases with the Maven release plugin, of Java projects and managing Maven repositories. Used Jenkins as a continuous integration tool for automation of daily process.
• Experience in administration of Apache HTTP Web server, Apache Tomcat servers. Solid experience in deploying enterprise and Web applications on WebSphere, WebLogic and Tomcat Clustered environments using console, via scripts and maintaining Load balancing and High availability.
• Developed Wrapper cookbook by customizing existing cookbook according to the requirements and stored sensitive data in Data bags and done testing using Test Kitchen and Chef solo
• Created the standard build for Windows 2003/2000 servers with security templates. Created templates for Windows on 32/64 bit and updating the Vm’s and templates using Update Manger. Migrating from VMware 3.0.1 environment to VMware 3.5.
• Worked on creating kick start automated installation media for VMware 3.5. Managing Windows 2003 active directory forest consisting domain controllers running services such as DNS, WINS, and Certificate Services.
• Experience in monitoring tools such as Nagios, Splunk/ELK Stack, AppDynamics , JIRA, and Service now for change management, automating the tasks and bug tracking. Maintaining document on confluence and experience on 3-Tier and N-Tier Environment.

TECHNICAL SKILLS:

Operating System: Redhat/CentOS (5x, 6x, 7x), Ubuntu, SUSE (9x, 10x, 11x), AIX (5.3 & 6.1), Windows Server 2003/2008/2012

Cloud Technologies: AWS, Azure

CI/CD: ANT, Maven, Gradle, Jenkins, Bit Bucket, TFS, SVN, Nexus, JFrog Artifactory, SonarQube, NuGet, Junit, Udeploy, AnthillPro, Bamboo

CM Tools: Chef, Puppet, Ansible and Terraform

Containerization Tools: Docker, Apache Mesos, Kubernetes

Database: MySQL, MongoDB, Cassandra, PostgreSQL, SQL Server, CouchDB

Web/App Servers: Apache, IIS, HIS, Tomcat, WebSphere Application Server, JBoss

Scripting: Shell scripting, Python, Vagrant, Perl scripting

Web Technologies: HTML, CSS, and XML, Servlets, JSP

Bug Tracking Tools: JIRA, Rally, Remedy and Clear Quest.

Monitoring Tools: Splunk, Nagios, Monit, SolarWinds, Pandora FMS

Tracking Tools: Remedy, JIRA, Clear Quest

PROFESSIONAL EXPERIENCE:

Confidential, Beaverton, OR

DevOps & Cloud Engineer

Responsibilities:

• Migrated on premise Infrastructure on to Microsoft Azure Cloud using Rehost “lift and shift” methodology and developed Continuous Integration pipeline using Jenkins to deploy a multitude of applications utilizing the Azure services Including Azure Virtual Network, Virtual Machines, Storage, SQL Database and Active Directory, load balancing, Auto scale, CDN, Cloud Services, Websites and Apps, Azure Application Insights by focusing on high-availability, fault tolerance, and auto-scaling.
• Migrated web applications to Microsoft Azure cloud and deployed applications on multiple web servers using Azure App service and maintained Load balancing, high availability and Fail over functionality and Synchronized on premises Active Directory users to office 365 with AD CONNECT and ADFS.
• Implemented AWS Code Pipeline and Creating Cloud formation templates and Launched EC2 Instances using Amazon machine Images (AMIs) (Linux/ RHEL /Ubuntu) for development, test and production environment with respect to specific applications and created users, groups, assigning roles and permissions using IAM service.
• Developed Ansible playbooks to provision EC2 instances in the cloud with required software installations and dependencies to run JBOSS application.
• Created resource groups using azure cloud shell, to create VM and integrated Ansible to Azure so that VM’s are automatically provisioned and configured.
• Created and deployed VM’s with Ansible to automate the build and deployment tasks. Deployed Java web application to Azure using Azure CLI in Jenkins Pipeline using App Service .
• Created Dockerfile that packages web apps with service run time into docker image and automated the distribution and scheduling of application containers across a cluster to make it easy to deploy, scale and manage application.
• Created Jenkins file to check into the source code and perform version control. Developed scripted pipeline in Jenkins which implements three- stage continuous delivery pipeline using Groovy script.
• Developed Continuous Integration pipeline using Jenkins and developed and integrated various Bash and Python scripts for deploying the applications on to the AWS Cloud and on-premise VMWare vSphere Infrastructure.
• Developed Jenkins pipeline to create the images of all the successful builds and to push them in to AWS ECR that is later consumed by the Kubernetes cluster to do the rolling deployments by consuming the images.
• Customized configuration settings of Maven Tool Kit to build EAR and WAR files and further developed and integrated Ansible Playbooks to pull the Artifacts stored in Nexus to continuously deploy the archives on to Apache Tomcat Web Server, IIS Servers and WebSphere Application Servers.
• Implemented AWS Code Pipeline and Created Cloud formation JSON templates in Terraform for infrastructure as code and automated provisioning and repetitive tasks using Terraform and Python , Docker container , Service Orchestration.
• Migrated few Cloud formation templates to Terraform by using various AWS modules and Secured the Terraform state file in S3 buckets. Detected and analyzed the changes that will be inflicted after Terraform Apply using Terraform Plan.
• Worked on Ansible to automate repetitive tasks, and to quickly deploy critical applications and Implemented Ansible Tower dashboard and role-based access control that is easier to allow individual teams access to use Ansible for their deployments.
• Experience with installation and configuration of Docker environment (v1.5.0) including Docker registry hub for managing different Docker images and deployment of applications inside the software containers.
• Worked with container-based deployments using Docker, Docker images, Docker file, Docker Hub, Docker Compose and Docker registries for task and service definitions to deploy tasks on AWS ECS clusters on AWS EC2 instances.
• Creating from scratch a new continuous integration stack based on Docker and Jenkins , allowing transition from development stations to test servers easily and seamlessly.
• Written Ansible playbooks with Python SSH as a wrapper to manage configurations of OpenStack Nodes and to test playbooks on AWS instances using Python.
• Worked on configuring Ansible Servers, installing Ansible and bootstrapping nodes with Host servers and involved in writing Ansible playbooks to install and configure Apache, tomcat, Jenkins, Rundeck.
• Worked on Docker and Kubernetes on cloud platform, provided support to developers in building and containerizing their application ( CI / CD ) and to deploy either on public or private cloud.
• Worked on Docker container clusters which are managed by Kubernetes Linux, Bash, GIT, Docker, on GCP (Google Cloud Platform). Utilized Kubernetes and Docker for the runtime environment of the CI/CD system to build, test deploy.
• Provided consistent environment using Kubernetes for deployment scaling and load balancing to the application from development through production, easing the code development and deployment pipeline by implementing Docker containers.
• Configured and managed monitoring tools like Splunk, ELK (Elasticsearch, Logstash, Kibana) to analyze and visualize the Application and system logs on AWS .
• Scheduled Splunk based Reports and Alerts to monitor the system health performance and breaches and maintained Splunk based native Role and User creation .
• Worked on troubleshooting both server and application level issues and logging JIRA tickets as per the requirement.
• Actively participant in scrum meetings, reporting the progress and maintain good communication with each team member and mangers.

Confidential, St. Petersburg, FL

DevOps & Cloud Engineer

Responsibilities:

• Implemented AWS services VPC, EC2, S3, RDS, IAM, Elastic load balancing, Auto scaling, Cloud Front, Elastic Beanstalk, Cloud Watch focusing on high-availability, fault tolerance , auto scaling in AWS Cloud.
• Managed users and groups and use permissions to allow and deny their access using AWS Identity and Access Management ( IAM) to AWS resources like VPC , EC2, S3, RDS and created security groups to control access to EC2 instances.
• Created RDS for database instance and invoked AWS Database Migration Service to migrate the datasets that are loaded into RDS to S3 bucket , created AWS lambda functions to analyze the objects stored in S3 and used AWS cloud Watch to view the results of the analysis performed.
• Configured AWS ECS for deploying and orchestrating containers by defining tasks and services. Leveraged Blue Green deployment by developing Ansible playbook to change configuration of services to ramp up or down the number of Tasks running in the overall cluster.
• Managed Ansible Playbooks with Ansible roles. Used file module in Ansible playbook to copy and remove files on remote systems. Created inventory in Ansible for automating the continuous deployment and written playbooks using YAML scripting.
• Created number of Elastic Load Balancers to distribute the incoming traffic between the EC2 instances and configured auto-scaling groups to automatically spin up / shut down the EC2 instances as per the incoming traffic.
• Built Docker images using related base image that encapsulates different application versions which is deployed on AWS by configuring task and Services. Used Launch configuration and Lifecycle hooks to automate auto scaling by defining the metrics.
• Wrote Modules in Terraform to trigger highly available EC2 Instances on AWS Cloud Platform. Wrote new plugins to support new functionality in Terraform and integrated Jenkins pipeline with Terraform for Continuous Deployment.
• Installed Jenkins on Linux environment and integrated different tools like Maven, GIT, SonarQube, and Nexus with Jenkins and implemented master - slave configurations to run multiple build operations.
• Written Chef Cookbooks for various DB configurations to modularize and optimize product configuration, converting production support scripts to Chef Recipes and AWS server provisioning using Chef Recipes .
• Managed Applications, services and packages using Chef , written Recipes, cookbooks and uploaded them to Chef-Server
• Deployed application which is containerized using Docker onto a Kubernetes cluster which is managed by Amazon Elastic Container Service for Kubernetes (EKS). Configured ‘Kubectl’ to interact with Kubernetes infrastructure and used AWS Cloud Formation Templates (CFT) to launch a cluster of worker nodes on Amazon EC2 instances.
• Implemented Chef Recipes for Deployment on build in the internal Data Center Servers and re-used by modifying the existing Chef Recipes for automatic deployment of servers and managing configuration files.
• Written Chef cookbooks, Recipes and roles to automate the deployment of applications in different webservers like apache tomcat, Jboss and WebSphere and tested them using Test Kitchen .
• Worked with open source and enterprise Chef edition , developed cookbooks using Ruby DSL, bootstrapping the nodes, and pushing those onto Chef Server and experience working on Chef automate for compliance.
• Integrate with Jenkins (CI) with Configuration Management tools like Ansible, Chef for End-to-End automation for all build and deployments onto application servers like Web logic, Tomcat, WebSphere, JBOSS.
• Deployed complete Stack into multiple accounts using AWS Cloud Formation Templates. Developed Cloud-Init scripts to bootstrap newly spun instances on to the Chef Server.
• Using Chef, deployed and configured ElasticSearch, LogStash and Kibana (ELK) for log analytics, full text search, application monitoring in integration with AWS Lambda and Cloud Watch.
• Experience in pulling the source code from GIT repository and implement Maven builds for generating ear and war and managed the artifacts generated by Maven in the Nexus repository .
• Created and managed a Docker deployment pipeline for custom application images in the cloud using Jenkins. Integrated Jenkins with GIT source code repository and maintained builds continuously when the developer’s check-in their code.
• Worked on Installation, Configuration, Trouble-Shooting and Maintenance of WebLogic Server WebSphere Server 7.0/ 8.0/ 8.5/ 8.5.5 , JBOSS iPlanet Web Server, Apache Web Server on different UNIX/ Windows flavors and setting up the Development, Testing and Production environments.
• Performed day-to-day administration tasks like User Management, Space Monitoring, Performance Monitoring and Tuning, alert log monitoring and backup monitoring and System Performance of Virtual memory, Managing Swap Space, Disk utilization and CPU utilization.
• Implemented Release schedules, communicated the Release status, created Roll out Plans, tracked the Project Milestones, prepared the reports and chaired the Release calls and worked for a successful Release of JIRA Application.

Confidential, Waukegan, IL

Build & Release Engineer

Responsibilities:

• Installing and administrating Continuous Integration ( CI ) and Continuous Delivery ( CD ) process using Jenkins, Bamboo, Hudson , Sonar , Subversion and Nexus / Artifactory .
• Implemented Continuous Integration using Jenkins and GIT . Automated CI/CD with Jenkins, build-pipeline-plugin, Maven , GIT Set up Jenkins master/slave to distribute build on slave nodes.
• Worked on Subversion configuration record for builds using derived objects generated during build audit process. Developed utilities for developers to check the checkouts, elements modified based on project and branch.
• Deploying the Business processes by creating JAR, WAR and EAR files to IBM WebLogic application servers. Building and monitoring the project that has been done continuously with a CI Tools like Jenkins.
• Developed and implemented Software Release Management strategies for various applications according to the agile process Build scripts using MAVEN build tools in Jenkins to migrate from one environment to another environment.
• Using monitoring tools like Nagios to identify and resolve infrastructure problems before they affect critical processes and on Nagios Event handlers in case of automatic restart of failed applications and services.
• Worked on Puppet, Puppet Dashboard and Puppet DB for configuration management to existing infrastructure. Wrote Ruby DSL to automate the testing, promotion and delivery of infrastructure changes with Jenkins. Managed Application Orchestration for the deployment of tasks in continuous delivery pipelines with puppet.
• Provisioned complex multi-node applications which are of Server-Agent model using Puppet Manifests and deployed those applications in Apache Tomcat, WebSphere. Generated artifacts (Jar, War Ear) files with MAVEN build tool and deployed them using Puppet and Ansible .
• Experienced in using build tools like MAVEN and ANT for the building of deployable artifacts from source code and stored in the Nexus or JFrog Artifactory repository and Worked with Jenkins and Udeploy for CI/CD pipelines. Used Jenkins to automate most of the build related tasks and Udeploy for deploying the code.
• Deployed the artifacts which are generated by Build tools like GIT and SVN from Nexus to Apache Tomcat, JBOSS and WebSphere application servers and Internet Information Services.
• Configured the user's accounts and restrict the Permissions for Continuous Integration. Supported Development team to resolve build failures related to environments Participated in the release cycle of the product which involved environments like Development , QA , UAT and Production .
• Implemented Master slave architecture to improve the Performance of Jenkins and used pipeline plugin to manage multi project jobs. Worked with Maven POM files in case of errors or changes in project requirements.
• Performed merges for each build from Development Branch to Integration Branch and managed the GIT branching strategy for a few applications by creating Release branches, Development branches.
• Worked on creating new Pre-production environment and added various servers into this environment to perform deployments from Bamboo and created single point of artifact deployments to various environments in Bamboo.
• Worked on web servers like Apache and application servers like Web logic, Tomcat, WebSphere, JBOSS to deploy code and Integrate with (CI) for End-to-End automation for all build and deployments.
• Worked on package management using YUM and RPM for installations and for upgrading of packages and created Python and shell scripts for automating the build and release process.
• Implemented servers with VMware 6.0 included vCenter Server on Dell and HP servers with Storage solutions iSCSI/FCoE and troubleshooted VMware ESXi 6.0 Hosts, VMware, vSphere and virtual center.
• Installed and Configured Virtual Machines as per user requirement and performed Cloning on Virtual Machines and Migrated P2V and V2V Servers using VMware Standalone Converter.
• Implemented large scale vSphere Infrastructure with ESXi 6.0 hosts and 4 VCenters in linked mode on Cisco UCS, HP C7000 Servers hardware with EMC VNX/VMAX storage and Cisco5k Switches with 10GB Network connectivity to support VMs
• Worked on Installation and configuration of Red Hat Linux 5 /6, IBM AIX 5.X and Windows 03/08 Servers on large distributed environment.
• Worked on writing shell scripts for Automated Back-ups and scheduling Cron Jobs using ssh and bash and managed user accounts and groups for corporate Linux users and supported corporate Linux Development servers.
• Installation, Configuration and Management of NFS, HTTP, FTP, SAMBA, DHCP, DNS Servers.
• Developed UNIX Scripts for manual deployment of the code to the different environments and E-mail the team when the build is completed.
• Performed various troubleshooting mechanisms to purge excess build data present in bamboo server to prevent it from failures to perform builds and deployment tasks on weekly basis.
• Used JIRA as a ticketing system tool to handle the issues/tasks/service requests created by multiple team members across the project.
• Created and maintained documentation of build and release processes and application configuration to comply with audit requirements and Industry best practices.
• Active participant in software configuration and change management processes to improve build accuracy, time, version controlling and migration of code onto different build environments.

Confidential, Mountlake, WA

Linux/VMware Administrator

Responsibilities:

• Creation & maintenance of user accounts, passwords and profiles, home directories, initialization of files, groups’ creation and management, setting file permissions, customizing shell environment setup for users.
• Configured and administered TCP/IP, LPAR / DLPAR , NFS and VIO servers and Worked with LDAP in order to resolve user management issues.
• Developed scripts for automating administration tasks like customizing user environment, and performance monitoring and tuning with nfsstat, netstat, iostat, vmstat.
• Created Korn shell scripts to monitor system resources and system maintenance and Performed administrative tasks such as System start-up/shutdown, and Backup strategy and scheduled cron jobs for job automation.
• Administered security, users, groups’ administration and daily backup and restore operations, networking service, performance, and resource monitoring and Performed disaster recovery management procedures.
• Developed and maintained configuration manuals, procedure manuals and standards for WebLogic and JBoss application servers. Used RPMs to install, update, verify, query and erase packages from Linux Servers.
• Mirrored existing logical volumes & created volume groups, disk groups & set up the RAID (0, 1 and 5) using VERITAS volume manager .
• Performed deployment activities, environment support including installation, configuration diagnostics, planning and upgrades for Jboss Application server .
• Troubleshooting various problems related to VxVM in initializing, replacing, mirroring, encapsulating and removing disk devices on various Production Boxes.
• Setup NTP to sync the times on all servers with our internal/external NTP time servers. And NTP peering with our internal servers as a failback mechanism. Familiarity with using the Tardis SNTP.
• Used vSphere Update Manager and VM Tools to implement ESXi 5.x servers, VCenter Server through manual updates. Managed hosts using VCenter Server, vSphere Client and VMware Web Client.
• Performed VMotion and Storage VMotion of Virtual Machines across different cluster with respect to security policies and application development requirements
• Implementation of VMware vSphere enterprise server hardware and software to support three large-scale COOP efforts, including vSphere 5.x, vCenter 5, vRealize Operations 5, and SRM. Used vSphere 5.x and vCenter 5.x to implement a virtualized environment across multiple security enclaves on HP Blade server hardware.

Confidential

Linux Systems Admin

Responsibilities:

• Configured, Maintained, administered and troubleshooted core services such as FTP, NFS, DNS, DHCP, NIS, Apache, Samba and other key 3rd party products.
• Installed different virtualization products such as VMware server 2.0, ESX 3.5/4.0 on a physical server which in turn will host different virtual servers running different SUSE versions, Linux, Solaris etc.
• Installed VMware and involved in migrating physical servers to virtual machines and configuring the resources to be shared between different virtual machines.
• Created Korn shell scripts to automate cronjobs and system maintenance. Scheduled cron jobs for disk utilization, CPU utilization, backup of the data operating system and other applications as per the requirement using shell scripting.
• Worked with VMware update manager to install patches and updates on ESX hosts and virtual machines.
• Worked with Network team understanding about the TCP/IP protocols , SMPP , routers and sending requests to open the ports.
• Experience in configuring volume groups and logical volumes, extended logical volumes for file system growth needs using Logical Volume Manager LVM commands.
• Responsible for configuring and connection to SSH through SSH clients like Putty and Cyber duck, also Password-less setup and agent-forwarding done for SSH login using SSH-Keygen tool.
• Involved in disk configuration and disk crash recovery using format and fdisk. Bad spots on disk were repaired using repair and analyse. Created new slices, mounted new file systems and unmounted file systems.
• Configured and administered TCP/IP, LPAR/DLPAR, NFS and VIO servers and Worked with LDAP to resolve user management issues.
• Co-ordinated with web team in installation, configuration and troubleshoot issues with WebSphere Application Server on Linux.
• Mounted/un-mounted new file systems, mounted file systems on remote servers using NFS Server client configurations, performed disk configurations and crash recovery.
• Maintained user account management, configured servers to register with Red Hat Network RHN Satellite Server, monitored servers- workload assessment, service console monitoring.
• User accounts management, developing korn shell scripts for various system performances monitoring purposes and troubleshooting.
• Joined multiple disks to overcome disk size limitations, mirrored data for fault tolerance. Spread data over multiple disks for performance enhancement.
• Formatting raw disks and partitioned them using the format utility, installing Solaris operating system, creating file system, devices and special files using newfs.
• Used fsck and fsdb on file systems successfully when critical data got corrupted. Made use of alternate superblocks to replace corrupted superblock.
• Used Remedy for tracking defects, ClearCase for documentation, CVS for Perl script source control, and MS Visual SourceSafe for Test Plan source control.