System Administrator Personal Development
Resume:
CHINON NWOGU
Hyattsville MD USA.
ad2lbk@r.postjobfree.com
https://www.linkedin.com/in/chinon-nwogu.
PROFESSIONAL SUMMARY
Analytical and skilled System Administrator with over 7 years’ experience in Linux and Cloud environments, with vast knowledge in Installation, configuration and management of Linux servers, windows servers and services in line with operational requirements. Maintaining best practices and documentation for operations, security and efficiency in different environments. I am independently motivated, appreciate collective efforts and collaborate productively within group settings as well. I have a strong desire to learn about new technologies, applications, and personal development.
TECHNICAL KEY SKILLS
Cloud Technologies: AWS EC2, VPC, EBS, IAM, EFS, FSX, Security Groups, S3, Load Balancer and Autoscaling.
Virtualization: VMware ESXi 5.X,6.X and 7.X Server, Vsphere
Operating Systems: RHEL/CentOS 6.X and 7.X, Windows Server 2012/2012R2
Containerization: Docker, Terraform, Jenkins.
Scripting Language: Bash Shell, JavaScript, python.
Networking & Troubleshooting: DNS, LDAP, SMTP, TCP/IP, DHCP, SSH, FTP, ping, dig, traceroute, tcpdump, telnet, nmap, netstat, netcat, ifconfig, nslookup
Linux Server Administration: NFS / AutoFS, LDAP, PHP, MySQL, NTP, database installation, Ansible
Ticket Tracking: Jira (Kanban and Scrum) Remedy, ServiceNow. SMC.
Q/A Tools: Kneat project tool.
Version Control: GIT, Bitbucket
Disk & File System Management: LVM, PV, VG, logical partitioning, swap, extending,reducing.
Database Administration: MySQL, Postgresql, LAMP Stack, DynamoDB, Toad for oracle.
Application and Web Server: Apache Tomcat, Nginx, HAProxy, SSL Installation.
Monitoring: Nagios, CloudWatch, CloudTrail, Splunk, Aptom. SolarWinds, New Relic
System Security: Iptables/Firewalld, ACLs, file permissions, VPNs, WAF
Deployment: MS VS, MS SQL Server, TFS
Cluster: Nutanix
PROFESSIONAL EXPERIENCE
Infra. Technology/ Sys Admin
COGNIZANT TECHNOLOGY SOLUTIONS 10/21-Present
●Install, Configure, monitor, and maintain Unix/Linux systems, RHEL and Centos Servers.
●Provide technical support, strategic planning and implementing system patches, updates, deployments, and Backup and recovery Contingency.
●Installation, configuration, monitoring and troubleshooting and maintenance of Linux/windows healthcare servers.
●Administered and supported SVN and GitHub Enterprise version control tool.
●Managed back-end infrastructure IQ/OQ remediation effort to serve patients and meet business goals.
●Perform S3 buckets creation, policies and the IAM role based polices.
●Develop and maintain scripts to automate system tasks and tasks related to the deployment of applications.
●Responsible for backing up data, troubleshooting technical problems to meet hardware needs.
●Manage user accounts, permissions, and system security and Monitor system performance.
●Conducted performance testing of Apache and Tomcat management services.
●Experience in installing, configuring troubleshooting of WebLogic servers.
●Assist with database development functions such as query optimization and table creation. (PostgreSQL)
●Ensuring that the database is adequately backed up.
●Granting and renewing permissions for database access.
●Performed rollbacks on patch related issues, OS hardening and vulnerability remediations for servers with accepted company best practices.
●Perform infrastructure assessment and evaluate it to improve and maintain core and enterprise infrastructure.
●Configuration, and maintenance of EC2, S3, RDS, VPC, ELB, Auto scaling.
●Experience in application configuration, code compilation, packing, building, automating, and releasing code from one environment to the other.
●Jenkins, Docker, SonarQube, Nexus installation and configuration.
●Installed, configured, and automated build jobs in Jenkins for continuous integration using various plugins.
●Performed continuous delivery in microservices infrastructure with Docker and Kubernetes.
●Creating Docker files to build images for different environments.
●Develop monitoring capabilities to secure the infrastructure.
●Implement, monitored, and maintained CI/CD pipelines.
●Wrote ansible playbook in yaml to manage configurations, orchestration, and deployment to remote machines.
●Assist with Design and architecture of the new Nutanix CSI-based storage infrastructure.
●Worked with multiple teams to perform remediation and mitigation procedures.
●Proficient in LDAP based authentication systems and other core infrastructure.
●ILO Configuration in line with organization document process.
●Performed and configured firmware update and storage array for HP.
●Hold a daily meeting with stakeholders related to software changes.
●Use script language and tools to automate operational activities, tasks, system builds and changes in the environment (Ansible Etc.)
●Develop infrastructure-as-code scripts to use in Ansible and related deployment technologies.
●Identify key dependencies for basic application functionality for system reliability, supporting full systems life cycle management activities.
●Cloned and deployed new virtual machines for various environments.
●Proficient in capacity analysis, monitoring disk space usage on system.
●Recommended corrective actions and ensured implementation of actions on change request approval.
●Knowledge of SCCM.
●Configured iptables/firewall/SELinux to allow applications & services to run.
●Configure and troubleshoot network services such as DNS, DHCP, and NFS
●Vast in configuration management, file, and disk management.
●Run, maintain, schedule tasks with cron and anacron
●Performed installation and configuration of multiple VMs and monitored clusters.
●Maintain compliance and meet security Standards by ensuring customer data is protected from unauthorized use.
●Worked on networking concepts like creation Vswitches, different types of port groups, NIC Teaming and VLAN Taking and managing snapshots using snapshot manager.
●Excellent knowledge of ITSM, ServiceNow, Remedy, implementing, managing, and delivering IT services to meet the needs of End-users, Services and Business.
● Developed custom SQL scripts to improve the database efficiency, reduce data load time and enhance performance.
●GitHub Administrator/SME used GitHub to manage code and enhance application lifecycle management.
●Maintained and troubleshot defects on applications, Server failures, Hardware or Software failures and coordinated repairs with 100% customer satisfaction.
●Review event logs, performance traces to help resolve customer issues.
●Automated various tasks for various teams using python and bash scripting.
●Performed change management for systems using defined System Development Life Cycle.
●Performed various applications Failover to various Data centers as per business needs.
●Create and manage system documentation, including network diagrams.
●Excellent analytical and problem-solving skills to resolve in-depth queries in a methodical manner independently, to find appropriate resolutions.
●Excellent understanding of server-side software, scalability, performance, and reliability.
●Ability to work in a fast-paced environment with aggressive schedules and multiple project deliverables.
●Created and managed S3 buckets Configure Virtual Private Cloud (VPC) with both public and private subnets NAT gateways to provision highly available VPC,
●Transfer files to and from remote servers securely, ensuring data remains encrypted during transit.
●Set permissions and ownership for files. Ensuring data confidentiality.
●Exceptional leadership, organizational, and time management skills.
●Strong decision-making, prioritization, and negotiation skills.
●Experienced in Healthcare Servers.
Linux Administrator
INCEPEND Digital
Laurel MD 04/2018-10/2021
●Monitored and maintained Unix/Linux systems to include RHEL and Centos 6 & 7
●VMWare experience implementing and administering mission critical enterprise class VMware systems.
●Installed, configured, and patched both virtual and physical servers.
●Installed WebLogic Service Packs, WebLogic Patches.
●Configured IIS/Apache webserver to proxy requests to WebLogic Application servers.
●Configured Load Balancers and auto scaling for elasticity and high availability for instances within both public and private subnets.
●Managed and configured storage services such as (EBS, S3) in AWS environment.
●GitHub Administrator/SME used GitHub to manage code and enhance application lifecycle management.
●Working knowledge of VM migration to improve utilization of resources.
●Installed, configured, and monitored Nagios server.
●Utilized IAM permissions, roles and policies for controlled user and AWS resources access based on a need-to-know basis.
●Used Ansible for Configuration Management (Ansible playbook and roles)
●Worked with Amazon EC2, Route53, SES, RDS
●Configured CloudWatch to monitor resources such as Disk usage, and CPU utilization on instances.
●Used puppet and Gitlab for automation and configuration management.
●Managed User/Group accounts using LDAP and IDM servers.
●Monitored system performance using Nagios and Checkmk.
●Content and patching management of RHEL 6 and 7 Servers using RHEL Satellite Server and Leap tool.
●Configured network access permissions including security groups, NACLs and routing tables for required access to resources.
●Resolved issues and general system administration with 100% customer satisfaction.
●Provisioned LAMP in AWS cloud environment and on prem
●Proficient in Linux Kernel Management.
●Copied and transferred files between servers using SFTP and FTPS in the Linux environment.
Systems Administrator 04/2017-2018
Emark Enterprise
Washington, DC
●Managed RHEL 6 & 7 servers in a fast-paced enterprise environment.
●Installed, configured, and maintained applications like Atlassian Bamboo and Jira on Linux servers.
●Managed Users using Windows Active Directory and Linux LDAP.
●Performed installation and configuration of RHEL 7 and Centos 7 Linux Servers in Dev, QA, and operational environments.
●Used Bash shell scripting for process automations.
●Created Ansible playbooks for configuration management.
●Monitored system performance using tools such as Splunk and Nagios.
●Administered AWS resources and ensured best practices while building highly available, scalable, and cost-effective infrastructure.
●Built VPC containing public and private subnets and created EC2s and RDS instances.
●Configured Load Balancers and auto scaling to ensure elasticity and high availability for instances within both public and private subnets.
●Managed IAM users, groups, roles, and policies in AWS.
●Enabled Virtualization using VMware’s vSphere Web Client.
●Setup S3 bucket policy to restrict access to private buckets, as well as created life cycle rules based on storage requirements.
●Hosted highly scalable, fault tolerant applications on the AWS cloud environment.
●Used Slack for collaboration and communication.
●Diagnosed system performance problems related to network issues, and memory/CPU utilization.
●Installed, tested, upgraded, and configured system files and services to enhance application security and operational performance.
●Used Remote Desktop and Virtual Private Network Appliances for Server Configuration.
CERTIFICATIONS
Scrum Master Certified.
Nutanix Certified.
EDUCATION
Doctor of Optometry (OD)- Imo State University Owerri
BSC COMPUTER SCIENCE - Imo State University Owerri
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