Zak M

● Experienced in quickly identifying, assessing, and resolving incidents on Linux systems, adept with incident management tools to streamline response and enhance system resilience.

● Managed 800+ servers running on RHEL, relations to security, software upgrades, and system administration.

● Expertly utilized Ansible Automation Platform (AAP) to design and implement scalable automation solutions, fostering a robust and efficient IT infrastructure with enhanced operational agility.

● Crafted Ansible playbooks for repetitive tasks including web apps, user management, and service orchestration.

● Utilized shell scripting and Git for version control and CIS Security Remediations.

● Collaborated with development teams to facilitate CI/CD pipelines and application deployment on OpenShift infrastructure.

● Configured RHEL servers to adhere to STIG benchmarks using Oscap and Ansible playbooks.

● Managed Red hat satellite Network, performing package management tasks and errata updates.

● Built, configured, and managed virtual machines (VMs) on ESX/ESXi hosts, implemented resource allocation and prioritization for VMs based on workload requirements, and performed VM migrations and cloning operations as needed for application teams.

● Installed VMware vSphere infrastructure and configured ESX/ESXi bare metal servers.

● Configured networking, storage, and other essential components within the vSphere environment.

● Experienced in deploying various AWS services like EC2, S3, RDS, VPC, Lambda, IAM, Elastic Beanstalk, CloudFormation, and EKS, crafting scalable, highly available, and fault-tolerant AWS solutions.

● Architected secure AWS solutions, adhering to compliance standards, and proficient in AWS network architecture (VPC, Subnets, NACLs, Security Groups). Knowledgeable in implementing disaster recovery and data backup strategies on AWS.

● Administered automating AWS deployments, CI/CD pipelines using AWS CodeBuild, Code Deploy, and Code Pipeline, and infrastructure as code (IaC) with AWS CloudFormation and Terraform.

● Utilized AWS S3 to store code bundles to deploy onto EC2 Instances.

● Employed Docker for containerization, guaranteeing uniformity and portability of applications across diverse environments.

● Skilled in Git for version control, including branching, merging, and managing code repositories, ensuring efficient collaboration and code management in team projects.

● Implemented server deployment using a PXE-boot method through the latest version of the Red Hat Satellite web client interface, automated provisioning workflows with Hammer CLI, managed Red Hat Enterprise Linux (RHEL) servers, resolved domain client connectivity issues, and executed OS patch management procedures.

● Administered SELinux policies, bolstering system security and mitigating vulnerabilities across diverse Linux environments and PAM for authentication, ensuring secure access to systems.

● Utilized Kerberos for secure, scalable single sign-on solutions, with experience in configuring KDCs and principals.

● Experience in Performance and Load Management (PLM) tools such as Nagios for monitoring system performance metrics, identifying bottlenecks, and optimizing resource utilization.

● Performed patching, upgrades, and security support with extensive troubleshooting of OS and Kernel related issues.

● Proficient in managing bare metal infrastructure, handling RAID configurations, BIOS settings, and hardware monitoring.

● Skilled in implementing and troubleshooting CIFS and Samba shares for seamless file access and collaboration on RHEL systems.

● Part of Disaster recovery design and implementation team. Created multiple storage and OS level replication efforts. Performed DR exercise on various OS and storage resources as part of test.

● Performed common system administration tasks but not limited to adding users, configuring volumes, creating file systems, configuring various system services, configuring software firewall, monitor system health.

• Automated virtual machine deployments and configurations using Ansible, significantly improving reproducibility and efficiency; proficient in the creation of templated VMs for rapid scaling within cloud-centric environments
• Provision remote access to ensure compliance with corporate security guidelines using RSA Security Console, read through compliance documentation and then implemented across newly deployed systems
• Evaluation, design, and development, and deployment of additional technologies for services on AWS and GCP
• GCP(GCE, GCS, VPC/Subnets, Stack driver) AWS(EC2,S3,RDS,ECS, Elastic Load Balancer, EBS, RDS, IAM, Route 53, Auto Scaling Groups)
• Implemented AWS Code Pipeline and created Cloud formation JSON templates in Terraform for infrastructure as code
• Utilized Terraform and Ansible to automate provisioning and repetitive tasks across Docker containers and Service Orchestration
• Played a key role in automating the deployments on AWS, GCP using GitHub, Terraform, Ansible and Jenkins
• Post Jenkins code review, deployed code as per Developer requirements to application servers using GIT
• Upgraded Kubernetes for the most optimal use and stable version compatible to the infrastructure
• Efficiently managed clusters of Linux containers using Kubernetes
• Managed and scaled container needs using docker images and orchestration using Kubernetes/Kubectl interface
• Worked along SAN team to allocate new storage as needed across the bare metal systems and partake in data migration for database systems and OS level LVM migration
• Deployed servers on bare metal, virtual and cloud platforms, utilizing Red Hat Satellite for provisioning the server profiles according to client and infrastructure placement
• Utilized and managed Red Hat Satellite 6 server for Repos and Subscription management, Architected and deployed Red Hat products via Red Hat Content Delivery/Content Views Management
• Automated and deployed Ansible YAML playbooks as needed to enhance and configure infrastructure systems, along with day to day tasks and post built hardening according to the organization's compliance standard
• Managed and deployed infrastructure configuration files such as PAM, SSHD and other to sync with infrastructure systems such as LDAP, Authentication and synchronized time keeping via NTP/Chrony
• Familiarity with AWS and GCP control management console to spin instances as needed per client base along with traditional bare metal deployment with HP and UCS blades
• Liaison among organizational teams to achieve resolution to remediate issues and bottlenecks to fulfill the ideal state of productivity
• Managed Amazon Web Service Identity Access Management/IAM polices to provide and grant access to the AWS console and managed storage needs for EC2 instances per AWS storage products such as EBS, S3 and AWS Storage gateway
• Managed and partaken in applying Red Hat Errata across the infrastructure systems to remediate vulnerabilities using Ansible YAML playbooks, Ansible Adhoc and Red Hat Satellite 6 server during coordinated bridge call with the application team and database admins
• Coordinated with the Database Admins to provide and allocate storage requirements as needed and provisioning partition for ASM use.

• Installation & Configuration of RHEL, Fedora Linux, and CentOS
• Set up secure LDAP port 636 on LAMP applications for Sandbox, Dev, QA, and Production environments
• Performed daily maintenance & system administration for Linux Infrastructure
• Management of User accounts, System security, kernel performance monitoring and tuning
• Planned, documented, reviewed, and maintained system administration guidelines and policies
• Performed multi-node software deployment, ad-hoc command execution, and configuration management using Ansible
• Managing package install/upgrades using YUM and RPM
• Performed data migration across multiple UNIX/Linux servers, and Windows Servers
• Worked on VMware vSphere and dealt with ESX, ESXi bare metal servers
• Created and deployed Shell scripts to automate daily repetitive activities
• Installation, configuration, and maintenance of web servers, application servers, and database servers with Linux
• Configured NFS as well as user accounts/groups for NFS directories
• Performed transferring files from one system to other using FTP, SFTP, Winscp, and scp
• Performed Installation/upgrade, system startup, and system shutdown as needed
• Created bash scripts to ping server nodes and add users to remote machines
• Resolved system errors and crashes, disk space problems, huge file sizes, and file system errors
• Backed up and restored files across the network and wrote technical documentation for various projects and system performance
• Performed call Rotation responsibilities for Production environment
• Manager which involved creating and modifying the file system, logical volume, Physical volume, Volume groups, mirroring and un-mirroring of volume groups, physical volume
• Performed hardware and software installations, upgrades, and maintenance, patch administration, kernel modification/upgrades, performance and security analysis, and network configuration/tuning
• Perform software installation, upgrades/patches, troubleshooting, and maintenance on Linux servers
• Participate in root-cause analysis (RCA) of recurring issues, system backup, and security setup
• Involved in installation and configuration of various third-party software onto servers.

• Patched desktops and printers in the comms room
• Installed, configured, and modified hardware and software to ensure optimal performance
• Assisted clients remotely using SCCM and RDP
• Patching network ports
• Input and track inventory with the MYSQL database
• Resolving Cherwell Tickets
• Network troubleshooting of wired and wireless connections
• Support, installation, and repair of printers in a Windows Server environment
• Imaging
• Printer troubleshooting.