ASIMA MUBEEN
East Brunswick,NJ
Summary
Linux Systems/ DevOps Engineer working in the IT industry for the past 8 years. Over 3+ years of extensive experience in designing, deploying, and managing cloud infrastructure solutions, specializing in AWS technologies. Expertise in leveraging services such as EC2, VPC, Lambda, S3, RDS, and CloudFormation to create scalable, cost-efficient, and secure architectures. Proven track record in migrating complex databases, automating infrastructure using YAML and Ansible. Adept at analyzing requirements, implementing best practices, and optimizing system performance. Highly skilled in DevOps tools, scripting languages, and virtualization technologies, complemented by a strong foundation in Linux systems administration, Windows and agile methodologies
Overview
12
12
years of professional experience
1
1
Certification
Work History
System /AWS Cloud Engineer
VSP
10.2022 - Current
- Designed multi-tier architecture to set up infrastructure in AWS for web server, DB server, load balancers & Route53
- Designed fault tolerant, scalable and robust architecture after collecting the requirements from the stakeholders
- Created user accounts, policies and roles on Amazon Web Services using IAM
- Authored YAML templates to automate the creation of infrastructure (VPC, EC2, RDS, Security Groups) using AWS CloudFormation, cutting down setup time by 60%.
- Migrated 500GB of data from on-premise SQL Server to AWS RDS using Data Migration Service, reducing database management costs by 20%.
- Migrated data from on-premise SQL Server to AWS RDS using Data migration service.
- Created a lambda function to read the logs from Code Build and ingest logs in Log DNA tool.
- Created YAML template to spin the infrastructure (VPC, EC2, RDS, Security Groups) using AWS CloudFormation.
- Identify access issues and assign required policies to IAM users and roles
- Created S3 bucket policy to enable cross account bucket access and generated JSON policies using policy generator tool.
- Lead security operations for over 4000 servers (Windows and Linux) for development, testing, acceptance, and production environments.
- Conduct vulnerability assessments and remediations related to TLS, SSL, FTP, and Java on Windows and Linux servers.
- Experience with Windows Server 2016/2019/2022, including builds, in-place upgrade, upgrades, patching, Diskspace and disaster recovery.
- Proficient in Linux server administration, focusing on server builds, installs, and patching.
- Provisioned and configured Oracle DB servers.
- AIX Server Administration includes Patching using Big Fix console, Installs
- Applied Oracle DB patches and updates to maintain system stability and security.
- Developed automation solutions through scripting to enhance operational efficiency.
- Managed VMware environments, including VM installation, cloning, snapshots, and networking.
- Administered backup solutions using Cohesity for Windows and RHEL servers.
- Utilized Splunk for running queries to analyze security events and generate comprehensive reports.
- Managed and secured Java applications, ensuring compliance with security standards and performing necessary updates.
- Utilized Riverbed for reporting and performance monitoring.
- Utilized Riskssence for monitoring TLS and java version
- Managed SSL/TLS certificates for various applications on Windows servers.
- Executed upgrades from Windows Server 2012 to 2019/2022 and RHEL 6 to 8, along with server Provisioning and decommissioning.
- Oversaw server access levels and performed queries in Active Directory.
- Experienced with Ansible and AWX for server builds and patching and , Access level management.
- Experienced in writing Business requirement and technical design documents.
- Documented troubleshooting processes for complex integration failure and adhered to ITIL best practices for incident, change, and problem management.
- Documenting the problems/issues with troubleshooting steps and solutions.
- Worked with internal/external integration partners.
- Experienced in testing and defect tracking systems like JIRA for reporting and managing high severity tickets from the customers.
DevOps Engineer
AT&T
10.2021 - 10.2022
- Designed, configured and deployed Amazon Web Services (AWS) for applications utilizing the AWS stack (Including EC2, Route53, S3, RDS, Cloud Formation, Cloud Watch, SQS, IAM)
- Cost and performance monitoring of resources and applications using AWS Cloud Watch and configured notifications for the alarms generated based on events defined
- Created user accounts, policies and roles on Amazon Web Services using IAM
- Designed, configured, and deployed AWS infrastructure for applications utilizing the AWS stack (EC2, Route 53, S3, RDS, CloudFormation, CloudWatch, SQS, IAM), resulting in a 30% improvement in deployment efficiency.
- Migrated data from on-premise SQL Server to AWS RDS using Data migration service
- Configured low latency static website using S3, Cloud Front.
- Deploying, Configuring, maintaining IT infrastructure with Linux-based systems.
- Utilizing CI/CD tool automates the build for deployment.
- Working with the GIT command line interface to push/ pull and commit source code files from the master GIT server.
- Working on Docker containers for installation to complete deployment.
- Provide system deployment, system administration, and troubleshooting for operational support of Linux based Prod and Dev servers.
- Deploy and configure Virtualization technologies such as VMware Esxi.
- Create, manage VMs (RHEL/ CentOS) and involved in virtual server maintenance.
- Preparation and execution of server patching and upgrading using ansible tower patching projects.
- Work with my team for Configuration Management in different Linux flavors and configured various services such as IP, F, DNS, HTTP, HTTPS, TFTP, FTP, DHCP
- SME In incidents management, change requests and service requests where performed Root cause analysis while solving network-related, performance, disk management and LVM management issues.
- Respond to all LINUX system problems and resolving issues promptly.
- Experience in Logical Volume Manager (LVM) for the management of disk volumes.
- Extensive knowledge of Performance Monitoring of CPU, Memory, Swap, Disk utilization, and monitor networking issues.
- Dealing with user management, group management, account creation, termination, and modification.
- Working with other teams
- Responsible for opening/communicating with vendors for hardware related issues and parts that malfunction or need to be replaced
- Creating and Managing user accounts and permissions.
- Provisioned AD(Active directory) user accounts.
- Involve in server provisioning and decommissioning process.
- Experience working on with Internal clients and documenting all requirements gathered from clients/requester.
- Automating administrative tasks, reducing, and improving task efficiency by deploying Bash shell scripts to perform.
- Debugging Linux server performance activity through analysis of daily generated system activity reports of the system’s.
- Remediating and maintaining network stability by investigating and mitigating network traffic using Tcpdump.
- Work with storage team to Configuring NFS server and mount exported NFS resources at the client side.
- Involving in NFS administration, exporting file systems, mounting exported file systems, working NFS daemons and fixing any mounting issues.
- Monitored system activities such as CPU, Memory, Disk and Swap space usage to avoid performance issues, and tuned various kernel parameters to achieve optimized performance.
- Managing tickets and communication using ServiceNow.
- Experience in system administration, system builds, server builds, installs, upgrades, patches, migration, troubleshooting, security, backup, performance monitoring and fine tuning on RedHat Linux systems.
Data Center Hardware / Linux Admin/Engineer
Bloomberg LP
04.2021 - 09.2021
- Performing data center installation, repair, and provisioning of hardware and software.
- Working with variety of network devices including Cisco, Juniper, and Dell EMC.
- Supporting various operating systems including RHEL6/7, Centos6/7, Ubuntu, Solaris, AIX, and Windows.
- Troubleshooting system performance issues using Splunk, Grafana
- Performing checks and testing hardware to ensure all is functional as expected.
- Supporting HPC environments, including performance tuning and user support
- Tracking and managing projects using Jira on daily basis.
- Managing tickets and communication using Bloomberg terminal.
- Developing and enforcing policies to ensure successful and timely performance of job operations.
- Performing tests that carried out to find and fix inefficiencies in power and cooling systems.
- Keeping track of work and issues resolved using Bloomberg Data Management Site.
- Continuously monitoring servers/network devices using in-house monitoring tools.
- Working with core OS services including SSH, TELNET, FTP, NTP, DNS, DHCP, and OSI model.
- Hands-on VMware vSphere 6 administration and operating RHEL/Centos6/7 virtual servers.
- Extensive experience with Linux upgrades, server builds and configuration.
- Managing and supporting SAN switches and storage arrays.
- Responsible for opening cases with multiple vendors on daily basis.
- Doing automation with bash shell scripting and ansible.
- Provision and maintenance of trading systems at the highest priority.
- Deploying Kubernetes clusters and docker containers.
- Managing code with GIT and GITLAB server.
- Writing ansible playbooks for application deployment.
- Patching servers, updating security errata and remediating vulnerabilities.
- Writing and updating technical documentation on internal SharePoint site.
Linux Support Engineer
New York State (ITS)
11.2019 - 03.2021
- Managed policies for S3 buckets and Built S3 buckets and used S3 buckets and Glacier for storage and backup on AWS.
- Working on Cloud Watcher for providing high availability of applications of EC2 instances based on a load of applications.
- Handling AWS EC2 Instances provisioning, setting up VPC, Launching EC2 instances and used few of the services like ELB, EFS, EBS, Auto scaling.
- Using Ansible Ad-hoc commands by utilizing CLI to automate day to day task which makes the work easier and quick.
- For the structured way of playbook using roles, handlers, variables, looping, and many other modules.
- Well experience in writing Ansible playbook and run them through Ansible Tower for live streaming results and using it to schedule jobs.
- Understanding pre-patching and post patching issues (kernel panicking, software incompatibility issues) and communicating with the vendors to resolve issues for the stability of the environment.
- Building and deploying Docker containers to break up monolithic app into micro services, improving developer workflow, increasing scalability, and optimizing speed.
- Experience Working with container-based deployments using Docker, working with Docker images, Docker hub and Pulling Docker images, run containers and monitored the docker demon processes.
- Knowledge about Kubernetes its uses and architecture of master and worker node.
- Working on version control systems like GIT and Git Lab to place the code.
- Troubleshooting network related issues using such utilities like Tcpdump, and Tcp/Ip rules and
- Proficient in transferring files across networks using protocols like SCP, SFTP and FTP
- Installing, configuring, maintaining, provisioning, decommissioning, migration and patching of both RHEL 5, 6, 7 and CentOS 5, 6 & 7.
- Experience utilizing vCenter to manage ESXi host configuration hosts and clusters, created golden templates, clones, snapshots of VMs.
- Provisioned Bare Metal and Virtual machines using PXE Boot with Kickstart to initiate installation of RHEL / CentOS 6/7.
- Working on kernel parameters for the better performance and tuning of the systems.
- Troubleshooting Nagios tool, for monitoring network services and host resources and used it as a monitoring tool to identify and resolve infrastructure problems before they affect critical processes.
- Remediating and maintaining network stability by investigating and mitigating network traffic using Tcpdump and using Firewall rules and Selinux.
- Responsible for patching, and decommission the servers, Disaster & Recovery Management and Change Management.
- Configuring NFS Server for multiple clients and troubleshooted NFS related issues.
Linux Admin
DXC Technology
09.2016 - 08.2019
- Implementing RedHat Enterprise workstation provisioning process for both RHEL 6 and RHEL 7 clients/ workstations.
- Provided system administration, maintenance and monitoring physical (on premises) and virtual environments.
- Resolved tickets for User Management, Storage Management and solved SSH related issues.
- Maintained the YUM repository server for patch management as well as securing Linux systems using local repository and installing, upgrading applications on Linux Systems.
- Experience on patches installation, packages installation, and patch upgrades on Red Hat Linux servers by using RPM YUM.
- Managed User Accounts and Groups and managing their permissions, manually adding users, granting sudo permissions as required.
- Scheduling cronjobs to automate tasks.
- Configuring DNS, SSHFS, VSFTPD, DHCP servers.
- Proficient in transferring files across networks using protocols like SCP, SFTP and FTP
- Upgrading system software, including upgrading security software and code upgrades.
- Performing daily system monitoring, verifying the integrity and availability of all hardware, server resources, system and key processes, and reviewing systems and application logs.
- Initiated Backups daily and monitored the scheduled backups. Took backed up important files using tar, zip, gzip and other compressing utilities.
- Creating and managing user accounts, security, rights, disk space and process monitoring in Oracle and RedHat Linux.
- Deploying and configuring LVM storage technology to manage disks and file systems on local and SAN and NAS attached devices and create snapshots for a point in time backups.
- Responsible for managing disk space by creating (Pv)Physical volumes, (vg)Volume groups, logical volumes (LVM) and file systems.
- Good understanding of various RAID levels. Implementing the RAID (0,1,5,6,10) based on the customers priorities related to performance, and redundancy.
- Ensured secure access to remote servers by using open SSH. Further creating keys and ensuring password less access to local and remote servers. Resolved tickets for User Management, Storage Management and solved SSH related issues.
- Monitoring status of scheduled jobs, monitoring system errors and prepare for corrective actions, and monitoring filesystem space.
- Process management, nice and renice process, sending kill signals, and managing virtual memory.
- Automating administrative tasks, reducing, and improving task efficiency by deploying Bash shell scripts to perform.
- Performed Back-End testing using SQL Query
- Conducting Root Cause Analysis to remediate and implement future proofing measures, leading to a sharp reduction in recurrence of future incidents.
Help Desk Analyst / Linux System Support
Wells Fargo
09.2013 - 09.2015
- Answering calls/emails from HCS (Health Commerce System) users regarding password resets, navigating the website, verifying browser settings
- Reviewing Health Commerce System (HCS) documents for accuracy, process and create HCS accounts for users other adhoc tasks.
- Remote VPN access.
- Submitting/Updating trouble tickets using ticketing system
- Installation, Configuration, testing and deployments to the WebSphere application servers in a single/clustered environment on Linux operating systems.
- Installation and configuration of Apache Tomcat
- Deployments and configuration changes to Apache Tomcat and WebSphere.
- Writing new scripts for easy deployment and Preparing documentation for new applications and footprints for new and existing applications on Apache Tomcat and WebSphere
- Used SQL queries to extract the data from the database.
- Use Introscope Performance Viewer for performance monitoring and tuned database connection pooling parameters, thread pools, JVM Heap parameters and GC cycles.
- Providing technical support to Dev, SIT and UAT teams for the deployments and technical issues. QA teams. Customization and Personalization using Admin Console. Troubleshooting and Administration of WebSphere Admin Server, and HTTP Server.
Education
MBA - MIS
Keller Graduate School of Management
Arlington, VA03.2013
Skills
- AWS (Cloud Technology): EC2, VPC, S3, IAM, SQS, SNS, Cloud Watch, EBS, EFS, Elastic Load Balancer, Auto Scaling, RDS, Dynamo DB, AWS CLI, Cloud Front, Cloud Formation, Route53, Glacier, Amazon Aurora, AWS Organizations, Cross Account Access, Consolidated Billing, VPC Peering and AWS Organizations
- DevOps: Git, Chef, Docker, Kubernetes, Ansible, Jenkins, Maven
- Languages: Bash Scripting
- Virtualization: VMware, Oracle VirtualBox
- Agile
- Project Management
- Jenkins
- Linux
- Microsoft Windows
Certification
- RED HAT Certified System Administrator (RHCSA)
- AWS Certified Solutions Architect – Associate
- CompTIA Security (+)
- Azure Fundamentals (AZ900)
Timeline
System /AWS Cloud Engineer
VSP
10.2022 - Current
DevOps Engineer
AT&T
10.2021 - 10.2022
Data Center Hardware / Linux Admin/Engineer
Bloomberg LP
04.2021 - 09.2021
Linux Support Engineer
New York State (ITS)
11.2019 - 03.2021
Linux Admin
DXC Technology
09.2016 - 08.2019
Help Desk Analyst / Linux System Support
Wells Fargo
09.2013 - 09.2015
MBA - MIS
Keller Graduate School of Management
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