Abdoulaye Diallo

● Designed and implemented automated patching solutions using Red Hat Satellite Server, ensuring 100% compliance with security updates, and reduced manual interventions by 80%.

Configured liveness probes to perform health checks of applications, and readiness probes to prevent the service from routing traffic to unhealthy containers.
● Established metrics and carefully monitored the health of AWS resources, the performance of the application, and SSL certificate expiration on a wide scale by making use of New Relic.

● Deployed applications in the Kubernetes cluster, making use of Rolling Update and Blue-Green deployment strategies. ● Used Kubernetes to orchestrate the deployment of containers across multiple nodes.

● Configured EBS snapshot automation to back up Jenkins data disk, using AWS EBS Lifecycle Manager.
● Successfully created and maintained automated CI/CD pipelines for code deployment using Jenkins.

● Participated in on-premises to AWS cloud migration, achieving zero downtime and improving system scalability.
● Performed troubleshooting of continuous integration systems, including build and deployment.

● Developed Terraform templates to provision AWS infrastructures in the cloud.
● Optimized SLOs/SLIs, reducing MTTR from 2 hours to 30 minutes, improving incident resolution speed by 75%.
● Minimized failure by running smoke tests using Cypress, increasing deployment reliability by 40%.

• Performed root cause analysis of production incidents and provided recommendations for improvement.

• Responsible for installation, configuration management, maintenance and systems development of Red Hat Linux, and Oracle Enterprise Linux/UNIX systems.
• Led the migration of over 250 Linux servers across development, testing, and production environments with minimal downtime.
• Troubleshot and resolved complex compatibility issues for custom applications and third-party integrations.
• Successfully executed RHEL 7 to RHEL 8 migrations, finishing two weeks ahead of schedule.
  Administered and optimized over 500 Linux servers, maintaining 99.99% uptime through proactive monitoring and automated alerts.
• Architected and deployed high-availability infrastructure using VMware vSphere and vSAN, supporting over 500 virtual machines with 99.99% uptime, and reducing hardware costs by 30%.
• Supported database operations, resolved performance issues (file system, security), and ensured 24/7 uptime for mission-critical systems.
• Configured and maintained SMTP, SNMP, HTTPD, HTTPS, NFS, and SAMBA for file sharing.
• Troubleshooted technical issues related to servers, networks, storage systems, virtualization platforms and other IT infrastructure components.

•Led monthly patching.
•Configured and managed Red Hat Satellite Server for patch management and system
updates.
•Collaborated with cross-functional teams to plan and execute the migration with zero
downtime
•Used Kickstart/Template to build physical and virtual servers and deploy them to the
network
• Troubleshoot TCP/IP, DHCP, DNS, NFS, and Samba related issues Performed Users and
Security management
•Performed file system management using LVM, NAS and SAN tools
•Configured storage pools in RHEL 8 using the Virtual Data Optimizer (VDO)
•Offered various support to software developers
• Configured Apache HTTPD, NFS share, and Samba Share
•Configured and Managed virtual servers using VMware & KVM
• Performed security hardening on dedicated servers