Senior Linux System Administrator jobs in United States
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Doyle Security Services, Inc. (DSS) ยท 2 weeks ago

Senior Linux System Administrator

Doyle Security Services, Inc. (DSS) is seeking a seasoned Senior Linux System Administrator with strong knowledge in managing and maintaining systems and networks. The role involves overseeing system upgrades, coordinating with technical personnel, and ensuring compliance with cybersecurity policies while supporting complex Linux environments.

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Responsibilities

Evaluate systems and upgrades for appropriateness
Oversee implement system upgrade strategies
Assist in the design, implementation, and maintenance of complex solutions
Coordinate activities with other technical personnel as appropriate
Develop and analyze highly complex system standards, thresholds, and recommendations to maximize system performance
Responsible for maintaining all server-side Security Certificates to ensure compliance with the FSC's cyber security policy
DevelopDocument strategies to manage the frequency of installations of the support package releases and patch
ResearchDocument current systems technologies and serve as subject matter expert on complex systems processes and procedures
Responsible for installing and maintaining the Red Hat Linux 6 and 7 server operating systems and various Linux applications and services such as Apache, TomCat, Kerberos, LDAP, MySQL, Satellite Server, Centrify, Java, Pacemaker, Bash, Python, Ansible, and Perl scripting
Responsible for supporting Oracle database installations/environment and setting up shared storage
Responsible for the security posture and implementing patches of Linux assets during weekly maintenance windows (off-hours)

Qualification

Linux System AdministrationAWS Cloud ExperienceRed Hat ExpertiseAnsibleApacheMySQLPowerShell ScriptingCustomer Service SkillsCommunication SkillsOrganizational Skills

Required

Bachelor's Degree in computer science, systems engineering, or related technical discipline is preferred
5 years of experience as a Linux System Administrator or similar role
8 years of additional relevant experience may substitute for education
Experience supporting the Federal Government
Monitor system maintenance and provide technical recommendations for enhancement
Thorough understanding and workings of Server protocols including, NTP, SMTP, SFTP, and email routing
Provide technical know-how to internal and external personnel on highly complex system administration and installation processes
Share knowledge and provide guidance to less experienced personnel
Thorough understanding and workings of incident handling protocols, personally identifiable information, Server network procedures, and information handling
Coordinate with stakeholders to formulate complex technical solutions. Inform stakeholders of appropriate developments in technical support products
Provide immediate response to break-fix of Linux assets base on the FSC's Core Business Systems (to include off-hours)

Preferred

RedHat Certified Systems Administrator (RHCSA) or RedHat Certified Engineer (RHCE), or Linux Professional Institute Certification (LPIC-3) level 3 certified
Capable of working under pressure, while handling multiple tasks simultaneously
Experience providing services to the federal government is preferred
PowerShell scripting is highly desirable
Experience utilizing Ansible and writing Ansible playbooks to handle complex tasks is highly desirable
Excellent customer service, communication and organizational skills are required
Ability to work independently with minimal direction providing technical and non-technical support to multiple users

Benefits

Paid vacation
Sick leave
Holidays
Health insurance
Life insurance
Military leave
Training
Tuition reimbursement
A wellness program
Short- and long-term disability
401(k) retirement plan with company matches/immediate vesting
Commuter benefits
And more.

Company

Doyle Security Services, Inc. (DSS)

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Welcome to Doyle Security Services (DSS) where a team of responsive security professionals stands ready to meet your needs in this ever-changing business environment.

Funding

Current Stage
Late Stage

Leadership Team

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Mario J. Doyle, CPP
President & Chief Operating Officer
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Company data provided by crunchbase