Efesomo O.

A seasoned DevOps Engineer with over 7 years of extensive experience in system support and IT solutions. Specializes in automation and container orchestration to optimize system performance and scalability. Proficient in Kubernetes, Jenkins, Infrastructure as Code (IaC), and cloud technologies. Strong background in implementing security best practices, enhancing CI/CD pipelines, monitoring, configuration management, troubleshooting, and system maintenance. Committed to teamwork, operational efficiency, and continuous professional growth. Technical Expertise and Proficiency: • Cloud Technologies: AWS (EC2, S3, RDS, VPC, IAM, Lambda, Router 53, Cloud Watch, Cloud Formation, SQS, SNS) • Scripting Languages: Bash, Python • Automation & Configuration Management: Terraform, Ansible • CI/CD Tools: Jenkins • Artifactory: Jfrog, AWS ECR, ECS • Containerization & Orchestration: Docker, Kubernetes, Helm, OpenLens, Docker Compose • Version Control: Git, GitHub • Networking: VPN, UDP, TCP/IP, Ethernet, SNMP • Security & Access Management: IAM, KMS, SonarQube, Trivy, • Monitoring & Logging: CloudWatch, Splunk, Prometheus, Grafana, Nagios, SolarWinds, CrowdStrike Falcon • Operating Systems: Linux (Ubuntu, CentOS, RedHat 5/6/7/8, Rocky, Oracle Solaris 10.x, Fedora, Debian and RedHat Satellite). • Hardware: HP ProLiant, Blade Servers, Dell R910, R810, R710, R610 • Software & Servers: Linux File System, ESX 4.x/5.x/6.x, Tomcat, Web/Application Servers, Apache, LAMP • Services: NFS, SSH, Telnet, DNS, Nslookup, Netstat, TCP/IP, TCP Dump • Utilities Tools: VI Editor Summary of Qualification: Hardworking and goal-oriented professional with extensive knowledge of DevOps engineer, system administration and Cloud Infrastructure Management, technical knowledge, other Core Competencies include: • Expert in DevOps Engineering and System Administration with hands-on experience in AWS, Jenkins, Kubernetes, Docker, Red Hat Linux, CentOS, Ubuntu, Fedora, Rocky and Red Hat Satellite. • Extensive experience in deploying and maintaining Linux-based infrastructures in on-premises and cloud environments. • Proficient in containerization technologies, including Docker for container management and Kubernetes for orchestrating containerized applications. • Skilled in developing and managing Kubernetes ConfigMaps, Namespaces, Secrets, Volumes, and Helm Charts for deployment automation. • Automation expertise using Ansible, Bash scripting, and crontab to streamline system administration and infrastructure provisioning. • Experience with CI/CD pipelines, including Jenkins, GitHub Actions, and Terraform for Infrastructure as Code (IaC). • Strong expertise in RedHat Linux upgrades and configurations (5.x, 6.x, 7.x, 8.x) using Kickstart Servers and automated provisioning. • Experience integrating Red Hat Satellite with Active Directory, enabling centralized authentication and system management. • Cloud and virtualization expertise, managing AWS EC2, IAM, S3, RDS, and VPC as well as VMware environments (vSphere 4.0, VMware Client 3.5). • Infrastructure monitoring and logging experience using Nagios, Prometheus, Grafana, and ELK Stack. • Hands-on experience with networking and security, including NFS, DNS, HTTP, HTTPS, DHCP, FTP, LDAP, firewall management, and SSH hardening. • Strong understanding of DevSecOps principles, implementing security best practices across infrastructure and CI/CD workflows. • Proven ability to collaborate with Database Administrators (DBAs) to optimize kernel tuning and performance enhancement for database workloads. • Skilled in managing web servers such as Apache (1.x, 2.x), Nginx, and configuring load balancing solutions. • Strong leadership, teamwork, and cross-functional collaboration skills, fostering DevOps culture across teams. • Excellent problem-solving and analytical skills, capable of troubleshooting complex infrastructure issues in fast-paced, high-pressure environments. • Passionate about continuous learning, process optimization, and adopting innovative technologies to enhance system performance and reliability. Professional Experience: United States Capitol Police (Government Contract) DevOps Engineer March 2023 – Present • Administered and maintained Kubernetes clusters for containerized applications, ensuring high availability and scalability. • Implemented a container orchestration platform, reducing deployment time and improving system reliability using Kubernetes and Helm. • Managed Red Hat Satellite for provisioning and patching RHEL systems. • Collaborated with development teams to integrate DevOps best practices, increasing code deployment frequency and reducing rollback. • Optimized cloud infrastructure costs through strategic use of serverless technologies and auto-scaling policies, enhancing resource utilization and operational efficiency • Monitored systems using Nagios and optimized cluster performance through resource tuning. • Provided 24/7 production environment support for Linux servers and Kubernetes workloads. • Implemented a CI/CD pipeline that decreased release cycles from bi-weekly to daily, leveraging Jenkins, GitHub CI, and automated testing frameworks. • Developed and executed a comprehensive monitoring and alerting system using Prometheus and Grafana, resulting in reduction in incident response times. • Implemented infrastructure as code (IaC) using Terraform, enabling consistent and repeatable environment setups, which improved deployment accuracy. Trinity Health DevOps Engineer January 2018 – March 2023 • Deployed, configured, and managed Kubernetes clusters on AWS, Azure, and Google Cloud. • Developed ConfigMaps, Secrets, and Persistent Volumes for Kubernetes applications. • Implemented a highly available, fault-tolerant Kubernetes infrastructure. • Built and maintained Linux VMs using VMware ESXi. • Designed and executed Ansible playbooks for cluster node provisioning and configuration. • Installed, upgraded, and patched RHEL systems using Kickstart servers and YUM repositories. • Streamlined the release process by implementing automated testing frameworks, reducing release cycle time and improving code quality metrics. • Supported Docker-based container deployments, including image optimization and security hardening. • Assisted in the migration of legacy applications to a cloud-based infrastructure, improving system uptime and reducing maintenance costs. • Automated routine operational tasks with custom scripts, saving the team hours per week and allowing focus on strategic initiatives. • Participated in the design and rollout of a version control system, enhancing collaboration and code quality across the development team. • Configured DNS, DHCP, and NFS services for enterprise network integration. • Introduced containerization with Docker, leading to reduction in development and testing environments setup time and improving developer productivity. Guarantee Bank and Trust Kubernetes/Linux Administrator January 2016 – January 2018 • Installed and maintained Kubernetes clusters for development and testing environments. • Configured NFS storage for Kubernetes Persistent Volumes. • Administered Linux servers, focusing on system performance tuning and monitoring. • Created and managed Docker containers for application sandboxing. • Automated deployment processes with Helm charts and Kubernetes manifests. • Developed Bash scripts for automating repetitive administrative tasks. • Developed automate infrastructure provisioning, cutting down setup time and reducing human error through Ansible and Jenkins. • Implemented a comprehensive monitoring and alerting system, decreasing incident response time and improving uptime across all services. • Deployed scalable microservices architecture, increasing application performance and supporting growth. • Implemented and managed Linux environments, ensuring uptime. • Created comprehensive documentation for system setup procedures and Standard Operating Procedures (SOPs) to ensure consistency and compliance. Certifications: • Certified CompTIA Security+ • Certified Conflict Analyst Institute Of Peace • AWS SysOps Administrator in Progress • Kubernetes Administrator (CKA) Certification in Progress • Red Hat Specialist Certification in Progress Education: Ambrose Ali University International Studies and Diplomacy (Bachelor of Art) References: Available upon request.