Hasan

About Hasan

Substantial “hands on” technical expert with an overall 15+ years of experience as Linux/Unix System Administrator/Infrastructure build and manage on Cloud, on premise, Virtual environment and other IT and Telecom sectors. Detail oriented, accomplished, outcome driven, problem solver, self starter, lead/manage team independently, little/no supervision. Comfortable adapting to rapidly changing environments.

Experience

1. Lead Cloud Infrastructure Engineer

   Qualys

   Dec 2021 — Present · Raleigh, NC, US

   Manage and support server systems(Centos7x, OEL7x, OEL8x) used in production environment.• Manage platform on physical/Vmware, AWS, OCI and GCP.• Package and Patch Management using yum.• Vulnerability Management and mitigation.• 5+ years of experience in cloud engineering, SRE, or DevOps.• Manage and upgrade Devops tools like Consul, vault, Controller, Kubernetes, vigil, Prometheus. • Performance monitoring and troubleshooting.• File System and Disk Management. LVM Configuration/Volumes resizing• Systems\' Network Administration (like configuring IP address), Routing table, iptables.• DNS administration.• Experience with system configuration tools (Puppet and Ansible).• Hands on experience with Docker/Container and Jenkins.• Security hardening and BIOS,CMC, Firmware upgrade of Dell using Openmanage-3.9.• Installing and configuring DNS, DHCP, FTP, NFS, SMTP, SSH and HTTPD.• EC2 instance creation/modification using CloudFormation stack and UI.• ESXi installation patching/upgrade using VUM on different Dell hardware (FX2/C6420/R730/R30/HP • Vcenter configuration and upgrade.• Spin up OCI instance using Terraform.• Spin up EC2 instance with CloudFormation stack.• Capacity management.• Troubleshooting Network,memory,cpu,swap and File system issues,TCP/IP, NFS, DNS, SMTP in Linux and Solaris servers. • Support ldap, autofs mounts, installing packages using yum and rpm packagement on Linux. • Hands on experience with K8S cluster reset, configuration and update.• OS installation and configuration using cobbler and Jenkins• Create and manage S3 bucket.• Experienced on string processing utility (AWK, SED, cut, tr, grep)• Hands On experience with CI/CD for operation and change management.• Answering technical queries and sharing RCA for incident• Version control using GIT.• RAID configuration and OS installation on physical server• Spin up VM from template and OVF.• Handle Oncall.

Education

• School Of Applied Science

  B.Sc in Computer Science and Engineering, Computer Science and Engineering

  2001 — 2006

• Shahjalal University of Science and Technology

  Bachelor of Science (B.Sc.) in computer Science & Engg, Computer Science and Engineering

  2000 — 2005