Oluwafemi Ayeni

• Engineering Stack:
• Sonarqube, Maven, Jenkins, Terraform, GIT & GitHub)
• Writing inventory and manifest files, ansible playbooks, terraform manifest files and k8s manifest files
• Created Ansible playbooks for installation, patching, and configuration of servers, user management, with different levels of access, file management, deployment, and full automation
• Wrote terraform manifest YAML files to provision infrastructure with Eks clusters, ec2 instances, IAM roles, VPCs, S3 buckets, and other resources on AWS
• Automating AWS cloud deployments using Shell script, Jenkins, and Ansible
• Implement and manage CI/CD
• Perform Build activities using Maven, AWS Solutions Architect, and Jenkins tool
• Coordinate/assist developers with establishing and applying appropriate
• Branching, labeling/naming conventions using GIT source control
• Setup for Apache and Nginx web servers coupled with AWS ELB SSL for all HTTP to HTTPS thereby maximizing security
• Configured Security groups and locked them down to various authorized subnet and IP addresses in AWS
• Analyze and resolve conflicts related to merging of source code for GIT
• Resolved merging issues during rebasing and re-integrating branches by conducting meetings with Development Team Leads
• Working very closely with Developers and the Build & Release team
• Setup Jenkins server & slave nodes for build and release team as per request
• Recently started deploying applications into managed Eks cluster rather than self-managed k8s clusters using kubeadm or KOPS
• Supported and developed tools for integration, automated testing, and release management
• WORK
• HISTORY CONT
• Experience with container-based deployments using Docker, working with Docker images,
• Docker hub, Docker registries, and configuring Eks clusters using Terraform
• Used Helm to simplify code writing to handle complex application deployment integrated with Jenkins
• Created custom mode VPCs in AWS with multi-regional private and public subnets along with firewall rules to allow SSH, ICMP, and RDP ingress traffic
• Configured bastion hosts to securely connect to instances running in private subnet on AWS
• Architected and implemented continuous integration and deployment pipelines using
• Jenkins
• Performed package management, upgrades/patches, troubleshooting, maintenance, and monitoring of applications using Prometheus and Grafana
• Created, managed, and administered user accounts security and SSH password-less login
• Network configuration & troubleshoot issues with respect to network and configuration files
• Set up maintenance scripts using metadata for graceful startup and shutdown of servers
• Used Jira to track vulnerabilities, requests, and incidents, and confluence for documentation
• Set quality gate policies on SonarQube for code coverages, to track bugs, vulnerabilities, and failed Jenkins pipelines when the threshold was not met
• Use Helm charts to deploy Prometheus and Grafana for monitoring

Security:

• Configured namespace, and resource quotas for different environments
• RBAC, HPA, CAS and
• Cluster RBAC.
• Monitored automated and continuous software integration processes to drive build/release failure resolution.
• Researched and identified new technologies and tools.
• Worked with software development and testing team members to design and develop robust solutions to meet client requirements for functionality, scalability, and performance.
• Worked closely with other business analysts, development teams, and infrastructure specialists to deliver high-availability solutions for mission-critical applications.
• Monitored automated build and continuous software integration process to drive build/release failure resolution
• Worked with cross-functional design teams to create software solutions that improved overall functionality and performance
• Investigated new and emerging software applications to select and implement administrative information systems
• Created secure custom coding to prevent network threats
• Automated and implemented system backup and recovery procedures
• Implemented best practices to protect data and assets
• Teamed with business analysts to deliver high-availability solutions for mission-critical applications
• Collaborated closely with product development teams and other stakeholders
• Collaborated with team to determine application requirement specifications
• Collaborated with team to analyze system solutions based on client requirements
• The supervised software life cycle from preliminary needs analysis to enterprise-wide deployment and support
• Drove project lifespan from concept to final rollout in development and deployment
• Worked with software development and testing team members to design and develop robust solutions to meet client requirements for functionality, scalability, and performance
• Confluence: documented project design for reference and future use cases

• Interacted with different development teams to provide support in deployment activities
• Experience in applying best practices in Cloud Security, auditing, and implementing security controls
• Implemented security best practices in AWS including multi-factor authentication, access key rotation, encryption using KMS, firewalls- security groups, RBAC and NACLs, S3 bucket policies and mitigating DDOS attacks, etc
• Worked with multiple project managers from different vendors to understand release plans and provided support according to their requirements
• Analyze cloud infrastructures and recommend improvements for performance gains and cost-efficiency
• VPC peering with other accounts allowing access and routing to service and users of separate accounts
• Performed applications installation, upgrades/patches, troubleshooting, maintenance, and monitoring of Linux servers
• Created AWS Lunch Templates based on customized AMI and used these lunch templates to configure auto-scaling groups
• Made use of Terraform for configuration, provision, and managing of Infrastructure
• Provisioned Multi-regional VPCs with Private and Public Subnet on AWS