AWS/Linux/Bash/Puppet/Jenkins

 

SUMMARY:

·               6+ Years of varied experience in the Information Technology arena focused on Systems/NetworkAdministration, Cloud Computing, DevOps Principles with maintaining Continuous Integration, Continuous Delivery and Continuous Deployment in multiple environments like (DEV/TEST/STAGE & PROD).

·               Experienced in installing, upgrading and maintaining RedHat Enterprise Linux, Sun Solaris, Ubuntu, and Windows based environments.

·               Worked in infrastructure team on installation, configuration and administration of Red Hat,Linux 5/6, RHEL 3.x/4.x/5.x and SUSE Linux 10.x/11, Windows server 2008/2012.

·               Worked on Open Source products like MySQL, Apache HTTP, Apache Tomcat, HAProxy, OpenLDAP, Nagios, Splunk and Logstash.

·               Experienced in automation using Python, Ruby and UNIX Shell/bash scripting.

·               Experience in development and configuration experience with software provisioning tools like Chef, Puppet.

·               Experience working on configuration management in Linux using Puppet there by developing Puppet Manifests using ruby for provisioning applications and scripts.

·               Experience developing Puppet modules and configuration hieradata for existing modules in a Ruby environment.

·               Experienced in AWS Cloud IaaS platform with features EC2, VPC, ELB, Auto-Scaling, Security Groups, Route53, IAM, EBS, AMI, RDS, S3, SNS, SQS, CloudWatch, CloudFormation, CloudFront, and Direct Connect.

·               Experienced in selecting the appropriate AWS service based on compute, data, or security requirements Amazon EC2 setting up instances and setting up security groups.

·               Experienced with AWS VPC networking and security; creating subnets, set up peering, ACL’s and VPN tunnels, CloudFormation, EC2, VPCs, and AWS networking components.

·               Experienced in designing and deploying Security functionalities to integrate Corporate Datacenter with Amazon Cloud Services.

·               Setting up databases in AWS using S3 bucket and configuring instance backups to S3 bucket.

·               Experienced in monitoring health checks using AWS Route 53.

·               Experienced in maintaining and analyzing log files using CloudWatch, Nagios, Splunk and Logstash.

·               Expertise in preparation of build scripts, build specs & applying label for the software builds.

·               Solid understanding of fundamental technologies like DNS, Load Balancing, SSL, TCP/IP, networking and security best practices.

·               Experienced in branching, tagging and maintaining the version across the environments using SCM tools like GIT, Subversion (SVN) on Linux and windows platforms.

·               Extensively worked on Jenkins/Hudson by installing, configuring and maintaining for the purpose of continuous integration (CI) and for End to End automation for all build and deployments.

·               Proficient working on Windows 2003/2008/2012, Active Directory, DNS, DHCP.

·               Hands on experience in upgrading servers using RPM, Apt-get and Yum package installer.

·               Experienced in installing, configuring, modifying, testing and deploying applications on Apache Webserver, Nginx and Application servers such as Tomcat, JBoss.

·               Maintained Performance tuning of VMware servers and management of server resources between Virtual Machines.

·               Involved in RPM administration for installing, querying and upgrading software on Linux servers.

·               Active team player, self-motivated individual with good communication, fast learner.

 

Education:

B.E (Hons.) in Electronics and Instrumentation, Birla Institute of Technology and Science, Pilani - Dubai

 

 

TECHNICAL SKILLS:

 

AWS IaaS Cloud:	EC2, S3, RDS, IAM, Storage Gateway, Glacier, CloudFront, OpsWorks, CloudFormation, SNS, SQS, VPC, DirectConnect, Route53, Elastic Load Balancing, CloudWatch, Autoscaling, Elastic Beanstalk
CM/CI-CD Tools :	Puppet, Jenkins
Programming Languages:	Java, UNIX Shell, SQL, Python, Ruby
Operating Systems:	Red Hat Enterprise Linux4/5/6, Sun Solaris8/9/10/11, Ubuntu8/10/12, CentOS, Windows2003/2008/2012, VMware ESXi
Database:	Oracle, MySQL, IBM DB2
Application Tools:	Apache Web Server, Tomcat Server, OpenLDAP, JBOSS
Networking Protocols:	TCP/IP, NIS, NFS, DNS, DHCP, SSL, WAN, SMTP, JDBC,LAN, FTP/TFTP
Version Control:	SVN, GIT
Monitoring Tools:	CloudWatch, Nagios, Splunk, Logstash

 

Key Bank, CAApr 2014 to Present

Role: DevOps /AWS Cloud Engineer

 

Worked as a contractor for a Key Bank project to analyze and suggest improvements for the existing AGILE process which included FAST Deck, Jenkins, JIRA, Quality Center, Perl, Python and SVN. Made several suggestions for improvements which includes automating the DB deployment process and establishing a connection between JIRA and Quality Center.

 

Responsibilities:

·               Designing and deploying scalable, highly available, and fault tolerant systems on AWS.

·               Built a highly available and fault tolerant VPC from scratch.

·               Configured NAT instance for internal servers within the private subnets thereby not exposing to the public internet.

·               Launching Amazon EC2 Cloud Instances using Amazon Web Services (Linux/ Ubuntu) and Configuring launched instances with respect to specific applications.

·               Hosted Enterprise web applications using AWS platform.

·               Applying company security policies using Security groups and Network ACLs for instance and subnet level security as per project requirements.

·               Used Auto-scaling and Elastic Load Balancer features on EC2 instances to serve the end users using applications during unexpected traffic/demand.

·               Ingress and egress of data to and from AWS S3 for multipart upload of data and to host static web content in AWS Cloud.

·               Implemented and maintained the monitoring and alerting of production and corporate servers/storage using AWS Cloudwatch

·               Configuring IAM roles for EC2 instances and assign them policies granting specific level access to S3 buckets by customizing JSON template

·               Designed Stacks using Amazon CloudFormation templates to launch AWS Infrastructure and resources.

·               Configured DNS with lookup zones using Amazon Route53

·               Configured DNS failover and monitored health checks and performance of web applications, web servers and other resources using Route53.

·               Used IAM to control access to Route53 resources.

·               Configured operating system level metrics for CloudWatch monitoring for EC2 instances.

·               Granted granular level permission using IAM to several users for different AWS resources using secure control access.

·               Managed servers on the Amazon Web Services (AWS) platform instances using Puppet as Configuration management.

·               Experienced in installing, configuring, modifying, testing and deploying applications on Apache webserver, Nginx and Application servers such as Tomcat, JBoss.

·               Automated site configurations using Puppet.

·               Experienced in installing Puppet agents and pushing Manifests/Modules to 100+ Puppet clients.

·               Responsible for large-scale Puppet implementation and maintenance. Puppet manifests creation, testing and implementation.

·               Created/Configured NTP puppet module for nodes running on CentOS and Ubuntu distributions to ensure time synchronization between Master and Agent

·               Built Apache module on Puppet automatically creating host and placement files for generic index page for each domain and deploy to the running nodes regardless of the distribution of nodes

·               Automate repetitive tasks, deploy critical applications and manage change on several servers using Puppet.

·               Monitored performance of the applications and analyzed log information using Nagios and Splunk.

·               Configured alarms over SNS to monitor the performance using CloudWatch.

·               Experienced with installing and configuring application servers like Apache TomcatandJBoss.

·               Integrated on-premises IT environment and AWS’s storage infrastructure using AWS Storage Gateway.

·               Configured S3 Buckets  for EBS backed Snapshots and versioning for data backups

·               Leveraged AWS cloud as an extension of the corporate datacenter by creating a VPN connection between corporate datacenter and VPC using Customer and Virtual private Gateways.

·               Configured Amazon CloudFront web service for faster content delivery.

·               Created templates to define configurations of AWS resources using AWS CloudFormation.

·               Provisioned AWS resources, managed their configurations, deployed applications to those resources using Amazon OpsWorks.

·               Hands-on with Version controllers like GIT and Bitbucket.

·               Configured and Installed various packages on yum and rpm repository servers

·               Designed the frameworks using Jenkins as the integration/build tool and Integrated GIT with Jenkins to automate and push the codes.

·               Implementation of Jenkins and Puppet for a Continuous Delivery framework in Linux environment

·               Creating Python scripts of the EBS volume snapshots by assigning a IAM user granting full access to the EC2 instances using IAM API secret access key credentials

·               Experienced in Scripting languages on UNIX, LINUX and Windows – Python, Shell script

·               Troubleshoot the build issue during the Jenkins build process.

·               Resolved system issues and inconsistencies in coordination with quality assurance and engineering teams.

Environment:Red Hat Enterprise Linux6.5, EC2, S3, RDS, IAM, VPC, ELB, Auto-scaling, IAM, Apache Web Server2.4, MySQL 5.5, Storage Gateway, Glacier, CloudFront, OpsWorks, CloudFormation, VPC, Direct Connect, Route53, SNS, CloudWatch, Apache, GIT, SVN JBoss, Logstash, Puppet.

 

Telecordia, New JerseyOct 2010 - Dec 2013

Role: DevOps/Cloud Engineer

 

Part of the DevOps team at Telcordia to support and improve the existing configuration and deployment process which include Jenkins, Oracle, Maven, SVN, Maven,Tomcat, Ansible, Splunk, SONAR, Selenium, JBoss, Vagrant, VirtualBox, PERL, Python and some Groovy. Focused on SVN, Jenkins and the build process which includes setting up Jenkins slaves and expanding the use of Jenkins plug-ins to improve the overall process. This has included creating or modifying some Groovy scripts. Also involved in setting up publishing Selenium test results to the web via Jenkins.

 

Responsibilities:

 

·               Creating the automated build and deployment process for application, re-engineering setup for better user experience, and leading up to building a continuous integration system for all our products.

·               Responsible for Design of different Release Environments for new projects

·               Implementing new projects builds framework using Jenkins&maven as build framework tools

·               Implementing a Continuous Delivery framework using Jenkins, Puppet and Maven in Linux environment

·               Configured/Integrated Jenkins with Git to poll codes and Maven to push artifacts to AWS S3.

·               Source code management with Github, Gitlabs to add, commit, push codes to various branches and setup Jenkins for auto polling.

·               Experience with Configuration Management - Puppet, which includes creating, modifying manifests for various applications. inside modules, cronjob setup, apache installation and configuration

·               Installed and configured Apache and MySQL database via Puppet as per the requirements

·               Built Puppet environment inside AWS custom VPC and have working knowledge of Puppet.

·               Day to day management/monitoring/troubleshooting of multi-tier applications using Puppet and Nagios in Dev, QA, Prod environments

·               Developed proof of concept (POC) for Linux users home directory migration between data centers

·               AWS Cloud management and Puppet automation.

·               Using Jenkins AWS Code Deploy  plug-in to deploy to AWS

·               Defining Release Process & Policy for projects early in SDLC

·               Member of CCM representing changes for Release and environment configuration

·               Responsible for nightly and weekly builds for different modules

·               Responsible for Database build, release and configuration

·               Perform Deployment of Release to various QA & UAT in Linux environments

·               Involved in development of AWS POC and Implemented AWS solutions using EC2, S3, RDS, Elastic Load Balancer, Auto scaling groups

·               Optimized volumes and EC2 instances

·               Used IAM to create new users, roles and groups

·               Created Cloudformation templates to deploy resources in HA, FT, Auto scaling environments in labs

·               Coordinated with Developers and Deployed Applications onto WebLogic, Apache and Tomcat.

·               Participated in on-call rotation to provide 24x7 technical supports.

Environment: RHEL4/5, RHEL Satellite Server, Solaris, JENKINS, AWS, WebLogic, Tomcat, Apache.

 

 

 

 

 

 

Anipr Technologies, IndiaFeb 2010 to Sep 2010

Role: Systems Administrator

 

The Engineering System Administration (ESA) team is responsible for developing and maintaining the worldwide infrastructure. This group is directly responsible for operating system configuration, virtualization, tools and application integration with back-end directory services, and other traditional system administration processes (excluding Help Desk, Networking, Storage and Datacenter Operations).

 

·                     Installation of patches and packages using RPM and YUM in Red hat Linux.

·                     Installed and configured Apache/Tomcat web server.

·                     Created and modified users and groups with SUDO permission.

·                     Install and configure Ubuntu, Centos on remote servers and Desktop servers.

·                     Working with developers to load software onto Linux Enterprise servers and also debugging Scripts.

·                     Set up and administer user and groups accounts, setting permissions for users.

·                     Diagnosed and resolved problems associated with DNS, DHCP, VPN, NFS, and Apache.

·                     Creation and administration of Virtual Machines using VMware and virtual box

·                     OS upgrades and installation of third party software, packages and patches as per requirement.

·                     Maintaining the Linux Firewall for network and implement to the network security.

·                     Troubleshooting the network with the help of netstat, ping, nslookup and traceroute tools.

·                     Resolving TCP/IP network access problems for the clients. Develop, Maintain, update various scripts for services (start, stop, restart, recycle, cron jobs) UNIX based shell.

·                     Experience installing and configuring SSH (Secure Shell) encryption in order to access securely on Ubuntu and Red hat Linux.

·                     Responsible for configuring and connection to SSH through SSH clients like Putty and Cyber duck.

·                     Remotely coping files using SFTP, FTP, SCP, WinSCP, and FileZilla.

·                     Regularly manage backup process for server and client data.

·                     Installing open source application, search, analyze and develop new application for users.

Environment: WINDOWS, Oracle Virtual box, VMware, SSH, RHEL release 3, 4, 5, SFTP, FTP, SCP, WinSCP and FileZilla.

 

The Blue Book, IndiaJune 2009 to Jan 2010

Role: Systems Administrator

 

Responsible for all aspects of UNIX based Systems, Virtualized Infrastructure, Amazon Cloud Services and Infrastructure. This includes Hardware Configurations, Infrastructure Provisioning, Configuration, Administration, Support and Management in a 24/7 x 365 Production Environment. 

 

·               Configured volume groups, logical and physical partitions using LVM

·               Configured RAID groups for backup and recovery.

·               Updated patches in the Systems as per the requirement.

·               Installed, configured and maintained DHCP, DNS, NFS, NIS, send mail server.

·               Managed user accounts, group account, modems, formatted and partitioned disks

·               Maintained local and remote printers, backup and restoring, scheduling jobs.

·               Performed performance tuning and preventive maintenance.

·               Performed installation and configuration of LDAP.

·               Resolved TCP/IP network access problems for the clients. Implemented Remote System monitoring with Sun Microsystems.

·               Developed, Maintained, updated variousscriptsfor services (start, stop, restart, recycle, cron jobs) UNIX based shell.

·               Experienced with OS upgrades and installation of third party software, packages and patches.

·               Scheduled full and incremental backups using Net Backup.

·               Experienced with adding and configuring devices like Hard Disk Drives and Backup devices etc.

Environment: Red Hat Linux, DNS, DHCP, NFS, Apache, SMTP.