Chikwelu Onwuche
Washington,DC
Summary
Experienced with designing and deploying complex system architectures. Utilizes advanced technical knowledge to enhance operational efficiencies. Track record of successfully managing cross-functional teams and driving innovative solutions.
Overview
12
12
years of professional experience
1
1
Certification
Work History
Senior Systems Engineer
First Citizens Bank (Insight Global)
05.2024 - Current
- Manage and maintain critical infrastructure on both Linux (RedHat, CentOS) and Windows Server platforms (2016/2019), ensuring high availability, security, and performance.
- Apart of the deploy and optimization of Mulesoft Anypoint Platform, including API Gateway, for seamless application integration and management of microservices.
- Configure and manage IIS web servers for enterprise-level applications, including performance tuning, patching, and troubleshooting issues.
- Administer WebLogic application servers, overseeing deployment, configuration, and troubleshooting of web applications in production environments.
- Utilize Ansible for infrastructure automation, improving system provisioning, configuration, and compliance across multiple servers.
- Collaborate with development teams to deploy, manage, and optimize microservices and API solutions through Mulesoft, ensuring scalability and integration across multiple platforms.
- Lead performance tuning efforts, analyzing and optimizing system resources, application servers, and integrations to ensure maximum efficiency.
- Implement system monitoring solutions, setting up alerts and reporting to proactively address issues before they impact business operations.
- Assist with the migration of legacy systems to modern, cloud-based infrastructures while ensuring minimal disruption to business operations.
DevOps Engineer
Leidos (Apex Systems)
03.2023 - 04.2024
- Designed and implemented CI/CD pipelines to streamline software deployment processes.
- Established configuration management practices using Ansible, ensuring consistent environment setups.
- Improved code deployment efficiency by automating processes with CI/CD pipelines.
- Designed and implemented containerization strategies using Docker and Kubernetes, improving resource utilization and management.
- Contributed to the creation of a DevOps culture within the organization, leading to increased agility and cross-functional collaboration.
- Advocated for best practices in code management, leading to improved code quality and team efficiency.
- Tested and deployed scalable and highly available software products.
- Estimated work hours and tracked progress using Scrum methodology.
- Translated technical concepts and information into terms parties could easily comprehend.
Infrastructure Architect/System Administrator
Siemens (Insight Global)
05.2022 - 03.2023
- Participated in Teamcenter Bootcamp with a concentration in the following areas:
- Single Server/ Distributed Server Installation
- SSO/SSL configuration for Teamcenter
- Linux Single Server Installation
- Backup and Recovery of Teamcenter and Databases
- Teamcenter upgrades
- Single Server/ Distributed Server Installation w/Deployment Center
- Collaborated with Bootcamp team members on various troubleshooting issues pertaining to Teamcenter installations
- Provided documentation for key asks from a potential client on the following topics:
- Tiered Architecture
- Database connections in a Prod environment
- SQL tuning best practices
- Managed GitLab repositories and permissions – including branching and tagging for source code management
- Utilized ServiceNow's Change Management module to manage and track changes to infrastructure and application configurations
- Utilized ServiceNow's Incident Management module to efficiently manage and resolve incidents that occurred during the development or operations process
- Assisted with utilizing Docker and Kubernetes to build, manage, and deploy Docker containers
- Implemented Amazon Web Services solutions such as EC2, S3, VPC, and IAM within the environment to fulfill clients requirements via cloud
- Managed and maintained virtual and physical servers in a mixed Windows and Linux environment
- Performed server monitoring and creating alerts based on observed limitations
- Planned for future of new servers; creating and documenting steps for forwarding path to migrate/upgrade
- Used PowerShell and Bash scripting to write scripts to automate various tasks with documentation
- Experience and knowledgeable with Oracle, SQL Server, PostgreSQL databases
- Experience and knowledgeable with JBoss, WildFly, Tomcat, WebLogic, IIS web tiers
Linux and Windows System Administrator
Powertrain
02.2022 - 05.2022
- Responsible for the maintenance, configuration and reliable operation of computer system, network servers and vitalization.
- Install and upgrade computer components and software, manage virtual services, and integrate automation processes.
- Troubleshoot hardware and software errors by running diagnostics, documenting problems and resolutions, prioritizing problems and assessing impact of issues.
- Provide documentation and technical specifications to IT staff for planning and implementing new or upgrades of IT infrastructure.
- Lead collaboration efforts amongst component teams, government personnel and other third-party contractor personnel in security related tasks for the environment.
- Perform regular backup operations and implement appropriate processes for data protection, disaster recovery, and failover procedures.
- Work with users, engineers, developers to complete applicable STIG's.
- Monitor servers and activity logs to ensure client uptime. Ensure systems perform properly after scheduled updates.
- Develop and maintains processes and procedures for critical operational activities.
- Apply patches and STIGs to VMs in environment and provide reports to security lead.
- Assist in the research and implementation of cloud security.
- Recommend best practice procedures and documentation methods in support of the FedRAMP process.
- Identify potential threats and report them to the security team.
- Assist in determining causes of potential security breaches and research, recommend and implement changes to procedures to protect data from future violations.
- Provide expertise to system development teams throughout the System Engineering Lifecycle process.
- Responsible for capacity, storage planning, and database performance.
Senior Linux Systems Administrator
OCR
06.2019 - 02.2022
- Handled Disk Management tasks such as: adding and replacing hot swappable drives on existing servers, partitioning according to requirement, creating new file systems and extending new ones.
- Assisted DevOPS team create new role instances on Azure.
- Created, cloned Linux Virtual Machines, templates using VMware Virtual Client 3.5 and migrating servers between ESX hosts.
- Documented all setup procedures and system related policies (SOP's).
- Managed VMware infrastructure, snapshots & backups
- Provided support with the configuration and maintenance of RedHat Servers
- Provided support with configuration and maintenance of RedHat LDAP
- Provided technical support with the deployment and administration of RedHat LDAP servers.
- Provided 24/7 technical support to production and development environments
- Software and hardware upgrades and routine systems maintenance by installing current patches and packages
- Created and maintained user's accounts, profiles, security, rights disk space and process monitoring.
- Provided technical support by troubleshooting day–to-day issues with various Servers on different platforms.
- Developed and maintained documents, library and procedural documents of the system.
- Managed systems routine backup, scheduled jobs, enabled cron jobs, enabled system logging and network logging of servers for maintenance.
- Managed GitLab repositories and permissions – including branching and tagging for source code management
- Assisted with utilizing Docker and Kubernetes to build, manage, and deploy Docker containers
- Implemented Amazon Web Services solutions such as EC2, S3, VPC, and IAM within the environment to fulfill clients requirements via cloud
- Performs RPM and YUM package installations, patch and other server management.
- Installed and configured Logical Volume Manager – LVM and RAID.
- Discover bottlenecks / and initiate correction action to assure continuous operations and performance
- Rectified many issues by instituting best practices in system log analysis, backup, network, user account/permission management and system/software auditing.
- Performed system configuration and troubleshooting.
- Monitored server performance, CPU Utilization, and disk usage.
Linux Systems Administrator
202 IT Solutions
01.2014 - 05.2019
- Assisted senior-level administrators in various aspects of Linux (Redhat) server administration including installing and maintaining the operating system software, performance monitoring, problem analysis and resolution and production support;
- Disk Management; Adding and replacing of hot swappable drives on existing servers, partitioning according to requirement, creating new file systems and growing new ones
- Established and maintained user accounts, assigned file permissions and established password and account policies;
- Troubleshoot and resolved basic level system hardware, software and communications problems;
- Performed basic system monitoring, verified the integrity and availability of all hardware, server resources, systems and key processes, reviewed system and application logs, and verified completion;
- Monitored server and application performance &tuned I/O, memory
- Installation of SSH and configuring of keys base authentication
- Established and maintained user accounts, assigned file permissions and established password and account policies.
- Ensure employees are able to remotely access company's network via remote access clients Performed PC support and maintenance for over 200 people.
- Handled Disk Management tasks such as: adding and replacing hot swappable drives on existing servers, partitioning according to requirement, creating new file systems and extending new ones.
Education
B.A. - Political Science
Pennsylvania State University
05.2014
Skills
- Root-cause analysis
- Linux and unix administration
- Windows server management
- Disaster recovery planning
- Continuous improvement
- Network administration
- Incident response planning
- Database administration
- SOP creation
- System troubleshooting
- System monitoring
- System upgrades
- Backup management
- Firewall configuration
- Active directory
- Cloud services
- Complex project delivery
- Scripting languages proficiency
Certification
- ITIL Foundation 4 Obtained: August 2019
- Certified Scrum Master Valid till: August 2021
- AWS Solution Architect Associate Obtained: June 2020
Timeline
Senior Systems Engineer
First Citizens Bank (Insight Global)
05.2024 - Current
DevOps Engineer
Leidos (Apex Systems)
03.2023 - 04.2024
Infrastructure Architect/System Administrator
Siemens (Insight Global)
05.2022 - 03.2023
Linux and Windows System Administrator
Powertrain
02.2022 - 05.2022
Senior Linux Systems Administrator
OCR
06.2019 - 02.2022
Linux Systems Administrator
202 IT Solutions
01.2014 - 05.2019
B.A. - Political Science
Pennsylvania State University
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