Senior Unix Systems Administrator

Senior Unix Systems Administrator
Term: 12 months
Location: Remote within the continental United States M-F from 8-5PM Pacific time.

• Must have minimum five (5) years experience with server infrastructure in an enterprise-level environment.
• Must have minimum five (5) years experience with IBM AIX in an enterprise-level environment.
• Must have minimum five (5) years experience with building, patching, and administering AIX, PowerHA, HMC, VIOS, & Managed Systems.
• Must have experience with troubleshooting of AIX based environment.
• Must have experience with IBM PowerVM virtualization environment (AIX).
• Must have experience with system build processes and procedures in a virtualized environment.
• Must have experience with monitoring capabilities to assist in troubleshooting and preventative maintenance in a UNIX-based environment.
• Must have experience with hardening Operating Systems to meet information security standards.

Extremely Desirable Qualifications:

• Experience with shell scripting/programming.
• Experience with IBM Big Fix Patch Management.
• Experience with IBM Tivoli Monitoring.
• Experience with Ansible.
• Experience with physical server hardware break/fix.
• Excellent problem-solving and troubleshooting skills related to AIX, PowerHA, HMC, VIOS, & Managed Systems.
• Experience administering Red Hat Enterprise Linux in an enterprise environment.

Key Responsibilities:

• AIX/IBM System Administration
  • Perform day-to-day administration, maintenance, upgrades, and troubleshooting of AIX systems, VIOS, HMC’s, and Managed Systems.
  • Provision and manage AIX virtual server builds using PowerVM technology.
  • Perform the administration of AIX LPARs configured as part of a PowerHA cluster.
  • Conduct vulnerability assessments and implement remediation strategies to secure AIX/IBM environments.
  • Manage IBM Power lifecycle migrations including planning, execution, and validation.
  • Integrate AIX Logical Partitions (LPARs) with the Configuration Management.
  • Database (CMDB) for accurate asset tracking.
  • Support application migrations from AIX/IBM platforms to Red Hat Enterprise.
  • Linux on x86 architectures or to Cloud hosted environments.
• Red Hat Enterprise Linux Administration
  • Administer, maintain, upgrade, and troubleshoot Red Hat Enterprise Linux systems.
  • Identify and remediate vulnerabilities within RHEL environments to meet security compliance standards.
• Documentation and Asset Management
  • Maintain up-to-date documentation and technical diagrams related to the UNIX infrastructure and processes.
  • Ensure all system changes, migrations, and configurations are accurately recorded and aligned with organizational policies.
• Collaboration and Continuous Improvement
  • Work collaboratively with cross-functional teams including security, application development, and infrastructure to support system requirements.
  • To participate in outage planning, capacity planning, and performance tuning to optimize system availability.
  • Contribute to the development and implementation of best practices and standard operating procedures for UNIX system management.
• Other Duties
  • Perform additional responsibilities and special projects as assigned by management to support the overall IT infrastructure goals.

Estrada Consulting, Inc. (ECI) delivers technology-enabled services and solutions to clients all over the USA and British Columbia. We provide system integration, custom application development, data warehouse and business intelligence, project management, custom reporting solutions and consulting services to mid-size and large enterprises in all major industries. The Company headquarters is in Sacramento, California, and was established in year 2000. Visit to learn about our projects, managed services, awards and certifications delivering value for a range of businesses and government agencies.