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Linux Application Administrator

Full-stack EngineerSoftware EngineerOtherRemoteSeniorTeam 201-500Since 2017Company SiteLinkedIn

Location

United States

Posted

136 days ago

Salary

$95K - $116K / year

Seniority

Senior

Bachelor Degree5 yrs expExperience acceptedEnglishApache HTTP ServerLinuxOracle DatabaseSDLCShellSplunk

Job Description

Linux Application Administrator

Galapagos Federal Systems

• Install, test, deploy, debug, update, and patch DTMO GOTS and COTS applications on Linux platforms • Troubleshoot application concerns and respond to inquiries from application users • Support logging software that captures security events and feeds into DMDC-approved software • Configure user access and monitor system stability and security through the software development life cycle • Coordinate with DMDC IT System Administrators to resolve infrastructure-related issues • Perform application maintenance, review error logs, and resolve reported errors • Provide technical support and guidance to DTMO users and IT managers • Support setting up external connections, whitelisting activities, port and protocols, submission requests, and validations • Ensure application and DTMO Passport website monitoring during core hours (0600 to 2200 Eastern Time, Monday through Friday) and on-call basis for mission-critical incidents at all other times • Coordinate with DMDC to develop and maintain technical documents such as network diagrams, standard operating procedures, and ports and protocols lists • Support Governance Board processes including documentation development, change request review, level of effort estimates, impact assessments, and stakeholder coordination • Coordinate with DMDC to support disaster recovery tests to reinstate DTMO Passport website • Restore normal operation after incidents, prepare root cause analysis, and apply ITIL best practices

Job Requirements

  • Must obtain and maintain a Tier 3 (T3) or higher background investigation
  • 5+ years of experience in Application Administration
  • Experience administering Linux-based applications in enterprise or government environments
  • Strong knowledge of Linux operating systems such as Red Hat Enterprise Linux (RHEL), CentOS, or Ubuntu
  • Experience with application installation, configuration, patching, and lifecycle management
  • Familiarity with Linux command-line tools, system services, and shell scripting
  • Experience with system monitoring, performance tuning, and troubleshooting techniques
  • Knowledge of network services, file systems, and system security practices within Linux environments
  • Experience supporting change management and system updates in production environments
  • Ability to diagnose and resolve application issues in coordination with system administrators and developers
  • Strong analytical and problem-solving skills
  • Ability to work collaboratively with cross-functional IT teams and federal stakeholders
  • Experience with Apache web server
  • Experience with Tomcat application server
  • Experience with LDAP and Oracle Unified Directory
  • Experience with Red Hat single sign-on
  • Experience with Splunk technology for application management, security, and compliance
  • Experience with SaaS, PaaS, and cloud platforms
  • Strong written and verbal communication skills.

Benefits

  • Medical, dental, vision, disability, and life insurance
  • Flexible Spending Accounts
  • 401(k)
  • PTO
  • Paid Parental Leave
  • Tuition reimbursement
  • Paid federal holidays

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