AYO JAIYESIMI

DevOps/AWS Engineer

Summary

Skilled Cloud/DevOps Engineer with 6+ years of hands-on experience designing supporting, technical writing and collaborating with technical teams in automating and optimizing mission critical deployments in cloud, leveraging configuration management, CI/CD and DevOps processes.

Technical Skills

Apache FTP DNS Nagios Jira Confluence LDAP FreeIPA DNS DHCP TCP UDP NFS ESXi WinSCP Jenkins Tomcat Maven Terraform phpMyAdmin Docker ECS Kubernetes LVM Gitlab Github SonarQube Nexus AWS MySQL MariaDB Postgres SSH Putty RedHat Linux CentOS Fedora Ubuntu Windows Server 2016 Physical Virtual Cloud

Professional Experience

Capital One Bank, Richmond, VA February 2021 - Present

AWS /DevOps Engineer

Provide support for implementation, troubleshooting and maintenance of IT systems for multiple environments, physical, virtual, and/or cloud.

Administer continuous integration and continuous deployment (CI/CD) and build automation tools (Ansible, Jenkins, GitLab, SonarQube, Nexus and Tomcat).

Developing CI / CD to standardize the infrastructure and automate the DevOps processes, allowing customers to rapidly build, test, and release code while minimizing errors.

Create and modify scripts or applications to perform tasks, using python, bash script and ansible.

Leveraging Docker to build, test and deploy applications in different environments.

Fostered microservices architecture using Docker and AWS ECS, optimizing scalability and resource utilization.

Facilitated the maintenance of Kubernetes infrastructure, including cluster upgrades, patching, and monitoring.

Orchestrated security best practices for Kubernetes, Including RBAC, network policies and Pod security.

Implementing Machine Image Pipeline and integrated Patch Management

Leveraging automated DevOps tools deployment and Blue-green deployment patterns and strategies.

Maintained custom Datadog and Splunk dashboards to visualize application metrics and KPIs, providing real-time insights to support decision-making.

Deployed and Configured Infrastructure using Terraform in AWS.

Managing provisioning of AWS infrastructures using CloudFormation and Terraform

Configured and managed CloudWatch Metrics, Dashboards, and Alarms to monitor core resources on both AWS and On-premises for Disk, Memory and CPU utilization while setting up alerts for threshold limits using SNS and Lambda Functions.

Creating design for high availability and business continuity using self-healing-based architectures, fail-over routing policies, multi-AZ deployment of EC2 instances, ELB health checks, Auto Scaling, and other disaster recovery models.

Implementing preventive guardrails using Service Control Policies (SCPs)

Engineered detective guardrails using Cloud Custodian policies and AWS config.

Leveraged AWS Control Tower to set up and govern a secure, multi-account AWS environment based on the company’s requirements.

Designing and implementing for elasticity and scalability using ElastiCache, CloudFront – Edge locations, RDS (read replicas, instance sizes) etc.

Developed and automated the management of servers using AWS Lambda and Event bridge to start/stop instances at scheduled times, also to delete old EBS snapshots as a cost-saving strategy.

Contributed to vulnerability assessments and security scans using industry-standard tools such as Nessus, Qualys, and AWS Inspector on Windows Servers hosted in AWS.

Identified and prioritized vulnerabilities based on severity and potential impact on business operations.

University of Maryland Medical, Baltimore, MD July 2017 -January 2021

AWS Cloud Engineer

Managing various Infrastructure encompassing hardware, operation systems, database management systems, network, and security.

Designed secured, cost optimized, highly available and fault tolerant infrastructure in AWS.

Architected and configured Dev/Stage/QA environments in AWS (VPC, subnets, security groups, EC2 instances, load balancer, RDS, Redis, route53, etc.)

Implemented security best practices in AWS including multi factor authentication, access key rotation, role based permissions, enforced strong password policy, configured security groups and NACLs, S3 bucket policies and ACLs,etc

Optimized cost through reserved instances, selection and changing of EC2 instance types based on resource need, S3 storage classes and S3 lifecycle policies, leveraging Autoscaling etc.

Configured CloudWatch alarm rules for operational and performance metrics for our AWS resources and applications.

Setup and configured logs files for detail monitoring and alerts notification when changes are made.

Architected and implemented continuous integration and deployment pipelines using Jenkins and other CI tools.

Architect high availability environment with auto scaling & Elastic Load Balancer

Securely deploy MySQL Primary DB and its read replica in private subnet with multi-AZ for disaster recovery and best practice

Migration of high availability web servers and databases to AWS EC2 and RDS with minimum or no downtime

VPC peering with other Accounts allowing access and routing to service and users of separate account to communicate.

Responsible for installation, configuration, management, and maintenance over Linux systems. Provide end to end Linux Administration including installation, configuration, upgrades, and maintenance and troubleshooting of Linux systems.

Design deploy framework for DevOps teams and support implementation of the architectural design.

Guaranty Trust Bank, Lagos,Nigeria February 2015 -March 2016

System Administrator

Managing various Infrastructure encompassing hardware, operation systems, database management systems, network, and security.

Managed and maintained a fleet of Linux servers running various distributions, ensuring high availability and optimal performance.

Implemented Ansible automation for configuration management, software deployment, and system updates, reducing manual tasks by 50%.

Developed Ansible playbooks to automate routine administrative tasks, including user management, package installation, and system monitoring.

Designed and implemented backup and disaster recovery solutions for critical data and server configurations.

Conducted regular security assessments and implemented security hardening measures to safeguard servers against threats and vulnerabilities.

Collaborated with development teams to provision and configure development and production environments using Ansible.

Monitored server performance and generated reports using tools like Nagios and Zabbix.

Provided 24/7 on-call support for system maintenance and incident resolution.

Responsible for configuring Kickstart servers for complete hands-free installation of workstations, with custom profiles, begin/finish scripts, and custom package suites/clusters.

Troubleshooting and maintaining TCP/IP, Apache, SMTP and DNS applications.

Upgrading and configuring system software that supports infrastructure applications.

Applying OS patches and upgrading on a regular basis.

Creating/modifying host-based firewall rules using IPTABLES.

Recommended architectural improvements, design solutions and integration solutions.

Designed and implemented new server standards for core business services.

Provided continued maintenance and development of bug fixes and patch sets for existing web applications.

Education

Olabisi Onabanjo University 2014

Bachelor of Science in Biotechnology

Certification

Linux +

Security +

AWS Solution Architect Professional Certified

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