Position: Linux System Administrator Location: Fairlawn, Ohio Contract to hire 6 months to perm Summary: This position is responsible for monitoring, recommending, documenting and implementing system enhancements to continuously improve system availability and security. This position is responsible for installation, hardening, integration, patching, implementation, performance, and maintaining Linux computer systems. This position is responsible for maximizing Linux system availability and performance. This position is responsible for providing technical assistance to the IT staff as it relates to Linux internals: This may include but is not limited to High Availability options, API testing and recommendations, Filesystem encryption, Web interfaces as well as Disaster Recovery recommendations and implementations. This position is responsible for timely and accurate problem resolution while engineering quality short term and long term fixes with an eye towards maximizing uptime and ensuring that established controls and procedures are followed. This position is responsible for supporting the installation of third party packages. This position is responsible for providing guidance in and leveraging of Red Hat Satellite Services, RPM’s and configuration consistency. Accountabilities: Accountable to understand and take measures to ensure Sterling meets all Linux related Service Level Agreements. Accountable for support and fine tuning of operating system/kernel parameters to increase efficiency, track critical metrics and achieving maximum return on computer system investments. This position is responsible for monitoring, tracking and trending Linux system performance This position is responsible for identifying system problems and managing the resolution of these problems through vendor technical support. This position is accountable for maintaining system integrity and following published Server Configuration/Compliancy Standards. Accountable for supporting penetration testing and engineering/implementing solutions or mitigating controls as issues are identified. This position is responsible for supporting timely operating system security patching as required by varying compliance initiatives such as PCI and SOx. This position is responsible for support and implementation of the Security policies and Controls as defined and developed by Sterling’s Information Security team. Accountable for participating in an on-call rotation and being readily available especially during the critical retail sales seasons. Accountable for team participation with other team members regardless of technical acuity or personality traits. Accountable for understanding and supporting IP routing, IPTABLES configurations as well as transport layer load balancing using IPVS. This position is responsible for providing technical programming insights and recommendations to the IT staff regarding Bash/Korn/Perl shell scripts, System Monitor interfaces and other Linux commands available at the command prompt including VI/VIM, Curl, SVN/CVS/RCS and parsing/piping various command line verbs and intrinsic functions. Experience with network services including DNS (BIND/named), SMTP (Sendmail, Postfix), NTP, LDAP (OpenLDAP, Active Directory), HTTP (Apache, HAProxy). Experience with SSL protocols and certificate management. Experience with packet analysis/capture tools as a troubleshooting methodology, including tcpdump and wireshark. Accountable for understanding, following and assisting to mature Sterling’s ITIL process and procedures. Accountable for providing reliable, timely and persistent inter-host processing including an understanding private/public key management. This position is responsible for reviewing, recommending and supporting the backup and recovery teams to ensure to ensure ease of system recoverability, including bare-metal restores. This position is responsible for timely and accurate completion of other tasks as defined by Management. This Accountable for support of all IT projects that utilize the services of Linux systems. Ability to pay attention to detail and meet deadlines Strong desire to self-improvement Solution – oriented, creative and flexible approach towards any problems / issues Ability to thrive and successfully work in a fun, fast-paced, dynamic environment Position Requirements: Bachelor of Science in Information Technology or equivalent 6 years of experience in Information Technology positions Experience with installing, patching, upgrading, administering, and maintaining Red Hat Linux. Experience with project support and team participation Desired: RHCE Familiarity with virtualization: VMWare, Citrix, KVM
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