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Linux Systems Administrator providing technical leadership and system management for HPE's mission - critical customers. Handling system integration, administration, and pre - installation configuration.
About the role
- Senior Linux Administrator supporting the US Census Bureau’s Unix Management Branch. Responsible for maintaining RHEL infrastructure and providing operational support to ensure data processing success.
Responsibilities
- Manage the complete lifecycle (provisioning, patching, upgrading, decommissioning) of all RHEL servers supporting the enterprise.
- Develop and maintain automation using Ansible, Bash, and/or Python to ensure consistent and rapid deployment of enterprise-wide changes.
- Deploy and maintain servers in clustered environments.
- Proactively monitor and tune the performance of the RHEL environment to support high-throughput, low-latency data processing and ingestion.
- Perform kernel-level tuning (sysctl), I/O optimization, and network performance analysis.
- Troubleshoot and resolve complex performance bottlenecks related to CPU, memory, storage, and networking.
- Serve as an escalation point for both the Operations Center and other Unix team members.
- Triage and resolve infrastructure issues, providing root cause analysis.
- Work closely with application, storage, and network teams to resolve cross-domain service issues.
- Work with the Backup team to ensure consistent backups of all Linux servers.
- Implement and maintain system security in accordance with federal standards (NIST, FISMA, and DISA STIGs).
- Manage user access and system entitlements, including SSSD/LDAP/Active Directory integration.
- Troubleshoot and resolve SELinux problems.
- Participate in security audits and provide remediation for findings.
- Participate in an on-call rotation for 24/7/365 operational support.
Requirements
- Must be a U.S. Citizen.
- Must be able to pass a background investigation to obtain and maintain a Public Trust security clearance.
- Bachelor's degree in Computer Science, Information Technology, or a related field (or 7+ additional years of equivalent experience).
- 10+ years of dedicated experience as a Linux/RHEL Engineer or Administrator.
- Strong experience in Linux performance tuning, kernel parameter analysis (sysctl), and troubleshooting with tools like vmstat, iostat, sar, and perf.
- Expert-level scripting with Bash and strong proficiency with Ansible for configuration management and automation.
- In-depth knowledge of Linux storage (LVM, XFS, NFS, CLVM) and networking (TCP/IP, DNS, bonding).
- Expertise across RHEL 7, 8, and 9 environments.
Benefits
- 401(k) with matching and 100% Vested
- Health Insurance - 3 plans to select from
- Dental insurance
- Vision Insurance
- Health savings account
- Life insurance
- Short Term Disability
- Long Term Disability
- AD&D
- Paid time off
- Professional development assistance
- Training
- Tuition reimbursement
- Flexible schedule
- Flexible spending account
- Referral program
- Paid Legal Plan
- and more....
Job title
Job type
Experience level
Salary
Not specified
Degree requirement
Tech skills
Location requirements
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