SUMMARY:

• DevOps engineer with over 5 years enterprise experience with CentOS/ RHEL/Ubuntu. Skilled at troubleshooting, upgrading, and provisioning systems in production environments. Experienced working with AWS, VMWare, Ansible, Puppet, Bash, and Python. Worked with team members in a fast paced, agile environment to reach goals efficiently and meeting company SLAs and quotas.

TECHNICAL SKILLS:

Skills: Linux, CentOS, Bash, AWS, VMWare, Ansible, Jenkins, Dockers, Nagios, Dell, HP, Apache, Https, LDAP, MySQL, NGINX, Tomcat, JIRA, Confluence

PROFESSIONAL EXPERIENCE:

Confidential, NY

DevOps Engineer

Responsibilities:

• Managed critical infrastructure for global business applications on AWS and VMWare.
• Worked with IAM to set up users and groups for access management on enterprise level accounts.
• Configuring user access and limits using IAM by creating new profiles and role - based policies.
• Created groups and attached policies to groups for organizational purposes.
• Creation of S3 buckets and utilizing IAM policies for management access.Creating roles for services to communicate/ access each other.Setting up S3 Glacier bucket for managing long term storage.
• Spinning up EC2 instances with different resource configurations for development, QA, and infrastructure purposes while working alongside with members of the team.
• Experienced with configuring VPC, subnets, and load balancers in AWS cloud environment.
• Exposure to setting up auto scaling policies with trigger events on AWS cloud native applications.
• Monitored the health of systems and applications on AWS through CloudWatch.
• Configuring Ansible playbooks to automate deployments for multiple applications in various environments.
• Managing upgrades, patches, and post checks during non-operational hours using Ansible and bash.
• Experience with creating playbooks to automate day to day operations, repetitive tasks, provisioning, configuration, and patching.
• Automating system administration tasks, and deployments using Bash and Python.
• Managed GitHab branch to push and pull code from team repository and manage different environment configuration changes.
• Working in an agile environment with multiple teams to complete projects and fix any errors that occur.
• Collaborated with developers, engineers, database, operations and other teams to ensure application, network and system integrity are in place.
• Joined vendors and meetings regarding updates, patches, and security releases.
• Experienced with infrastructure monitoring, setting up new applications, and servers within various environments for team specific needs.
• Oncall b-iweekly support rotations for systems 24X7 production systems.
• Creating backups using rsync, and cronjob to schedule them after business hours.
• Proficient with resolving server performance, carrying out operational support, troubleshooting networking error, MySQL database, end user server connectivity, etc.
• Resolved tickets related to software and hardware in the queue in an appropriate time frame.
• Managed virtual machines, clusters, and other VMware resources through vSphere and vCenter.
• Managed and provisioned HA/FT on VMWare clusters in production. Managed datastores, set up backups, snapshots, and migrations using VMotion.
• Worked in the datacenter to install, configure, and deploy servers through VMware ESXi as well as resolve hardware issues with vendors.
• Relevant knowledge of monitoring industry standards and the use of analytics in an operational setting.
• Monitoring infrastructure applications through Nagios and New Relic.
• Installed NRPE plugin on client machines to monitor applications and services available on the systems.
• Managed user permissions by using inline and managed policies to control user access to services.
• Worked with LDAP/Active Directory to manage over 10,000 users and groups.
• Managing expiring passwords, account creation, account troubleshooting and monitoring.
• Setting up multi factor authentication for users for extra security measures..
• Advised on general IT tasks and users with appropriate technical actions and solutions.

Confidential, NY

Linux System Administrator

Responsibilities:

• Worked within a full operation LAMP stack environment.
• Installment, configuring, and maintenance of RHEL/CentOS systems.
• Working with different networking protocols ( DNS, DHCP, tcp, udp, ping, https, icmp)
• Setting up and configuring services such as FTP, TFTP, DNS, DHCP, NFS, and LDAP.
• Parsing through log files and system messages to troubleshoot various errors for different services including application, network, system, and web servers.
• Supporting, provisioning and administrating web servers including Apache, Tomcat, and Nginx,.
• Configuring partitions and logical volumes to manage and allocate storage.
• Provisioning and troubleshooting DNS errors to maintain DNS queries and resolution.
• Working with DNS resolver and configuration file to troubleshoot any errors that arise.
• Tasked with file transferring using FTP, VSFTP,, SCP, and WinSCP.
• Troubleshooting performance issues using commands such as top, to prioritize load heavy process.
• Diagnosed and troubleshoot network and memory issues relating to heavy load issues.
• Monitoring system performance using SAR, vmstat, and iostat.
• Troubleshooting systems through crashing them during the boot process (single user mode).
• Set up PXE boot server to automate the creation of virtual machines with custom kickstart files.
• Proficient in setting up RAID levels (0, 1, 2, 5, 6, 10) and RAID level management on Dell and HP ProLiant servers.
• Setting up bare metal servers with VMware ESXi type 1 hypervisor for creation of virtual machines with various different operating systems .
• Hand on experience with creating Virtual Machines, creating snapshots, cloning virtual machines, and creating virtual machines from templates.
• Racking, stacking, and setting up different server hardware and raid levels, as well as replacing physical hardware and working with data center technicians and vendors.
• Accessing iDrac and iLO to access bare metal servers to troubleshoot system issues.
• Support Windows 10, Windows Server 2012, VMware and Active Directory domain network.
• Experienced with user management with Active Directory to create, manage, and remove users.
• Management and modifications of user permissions to control user access.
• Monitoring infrastructure applications through Nagios and in house tools to escalate if high priority errors occur and maintain optimal system performance.
• Performed backups with tar, gizp, rsync, and cronjob to archive company sensitive data.
• Patching and updating servers using package management tools such as yum and rpm.
• Using ssh-keygen to generate keys for users for keyless authentication for accessing servers.
• Created Iptables rules and firewalls rules for configuring services to be allowed permissions.
• Tasked with configuration of server network and setting up a static IP address.
• Securing system utilizing SELinux and firewalls to allow different ports for services to be open.
• Provided timely support and resolved tickets related to hardware and software, as well as working directly with vendors.
• Troubleshoot and prioritize IT procedures to maximize efficiency.