Linux Administrator (Short Term)

Linux Administrator (Short Term)SAWS is looking for an experienced Linux administrator to assist us in various tasks related to our Linux infrastructure. A short description of the issues as well as some minimum requirements are provided in the attached document. It is important that candidates are experienced, as the issues will require real-world experience performing tasks outlined in the description.We expect this project to last 4-6 weeks with 40 hours per week commitment (remote). We will be accepting resumes until Friday, July 14th and, depending on the number and quality of candidates, expect to make a selection shortly thereafter.For each candidate please provide a resume attachment and in the body of the email, please provide a short description and the information as follows:Company NameCandidate NameCandidate PhoneCandidate EmailHourly Bill Rate (to SAWS)Linux Administration Challenges:Upgrades and patches Sometimes patching doesn't address all software. Some software needs to be patched separately from OSSome software libraries need to be manually removedSometimes the recommended steps result in inconsistent updates leading to unstable systemsRe-configurations Building new systems and configuring file systems (lot of unknowns)Validation of the systems after configuration changes is a challenge on many occasions. Sometimes we identify issues and broken dependencies only later with nowhere to goMajor issues to address Linux kernel upgrade issues – There are many CentOS machines which are appearing in report as due for kernel upgrade. CentOS 7 is the last supported CentOS version and will be ending the support in 2024. CentOS 8 is not supported anymore. There are several machines having CentOS 7 & 8 as the OS and the recommendation for these machines is to move to a different supported flavor of Linux. These servers are hosting applications such as NFS shares, Splunk forwarders, Rapid 7 scanner, Zabbix etc. After rebuilding the servers these applications need to be properly configured and tested.Linux Upgrade issues - There are several machines on Debian 10 which is losing support soon. We know the process to upgrade them to Debian 11, but this doesn't solve all the issues. There are still references to old vulnerable libraries and software which need to be cleaned up.Individual library upgrades - There are libraries such as BIND, Openssl, rubygems, icu, etc. which are reporting a referencing old libraries or vulnerable software.Resource skillset requirements:Over 5 years of strong experience as a Linux Administrator.Knowledge and experience with various flavors of Linux mainly Oracle Linux, CentOS, Debian and Redhat. Knowledge on VMWare virtual environment.Strong technical background in storage, disk management, Logical volume management (LVM).Experience with installation and configuration services like NFS, DNS, BIND, OpenSSL and certificate authority, splunk, rubygems, icu, rapid7 etc.Management of user accounts, System security, change management and performance tuning.Experience and proficiency with installation of patches, hardware software and firmware updates.Experience in troubleshooting I/O Errors, Disk errors, package dependency issues.Experience with package management.Flexibility to work off-hours and weekends as most the maintenance activities happened outside business hours.