Sr Enterprise Sys Engineer – UNIX​/AIX

PURPOSE AND SCOPE

The Unix System Administrator will be responsible for the design, implementation, and ongoing support of IBM Power Systems environments running AIX as well as a small HPUX environment. This role requires deep technical expertise in AIX, Power

VM virtualization, VIOS, and related infrastructure components as well as general knowledge of HPUX operating system. The ideal candidate will have hands‑on experience supporting enterprise‑level systems, managing migrations, and ensuring system performance, availability, and security.

• Administer, configure, and maintain IBM Power Systems
• Administer, configure and maintain HPUX servers
• Manage and support AIX 7.2 and 7.3 operating systems, including patching, tuning, and troubleshooting.
• Perform installation, configuration, and maintenance of AIX servers through NIM (Network Installation Manager).
• Design and configure Power
  
  VM virtualization services including SEA, VLANs, VLAN tagging, IVE, NPIV, CPU pooling, and Live Partition Mobility (LPM).
• Configure and manage VIOS (v3+) and HMC (v10+) consoles, ensuring proper resource allocation and firmware updates.
• Perform microcode, firmware, and operating system upgrades for AIX, VIOS, and Power hardware.
• Manage Logical Volume Manager (LVM) configuration and administration for optimal storage performance and reliability.
• Implement and maintain SAN storage connectivity (Dell/EMC Power Path, Power Max, Power Store) and ensure high availability.
• Configure and support Veritas Info Scale Clustering for critical workloads.
• Develop and maintain shell scripts to automate administrative tasks and improve operational efficiency.
• Participate in AIX support activities, including troubleshooting, incident resolution, and performance tuning.
• Lead or support data center migration projects involving AIX and Power Systems.
• Collaborate with storage, network, and application teams to ensure end‑to‑end infrastructure stability and performance.
• Maintain detailed system documentation, including architecture, configurations, and operational procedures.

The physical demands and work environment characteristics described here are representative of those an employee encounters while performing the essential functions of this job. Reasonable accommodations may be made to enable individuals with disabilities to perform the essential functions. Occasionally lifts/carries object and materials weighing +30 pounds

• Bachelor’s Degree required;
  Advanced Degree desirable

• 5+ years of hands‑on experience administering IBM AIX systems in enterprise environments.
• 3+ years of hands‑on experience administering HPUX systems in enterprise environments.
• Strong proficiency with IBM Power hardware (Power9+), AIX 7.2/7.3, VIOS, and Power
  
  VM.
• Demonstrated experience with LPAR virtualization design and management.
• Expertise with NIM setup, configuration, and patch management.
• Deep understanding of HMC operations and LPM migrations.
• Experience with SAN technologies and EMC/Dell Power Path, Power Max, and Power Store integration.
• Working knowledge of Veritas Info Scale Cluster configuration and support.
• Proficient in shell scripting for system automation and monitoring.
• Strong troubleshooting and performance analysis skills.
• Excellent documentation, communication, and teamwork skills.

• IBM Certified System Administrator — AIX or equivalent certification.
• Experience with hybrid data center or cloud migration projects.
• Knowledge of security hardening and compliance best practices for AIX and HPUX environments.
• Familiarity with modern Dev Ops and automation tools (e.g., Ansible, Power
  
  VC, etc.).

The rate of pay for this position will depend on the successful candidate’s work location and qualifications, including relevant education, work experience, skills, and competencies. Annual Rate: $94,000.00 – $ Non-Bonus Eligible Positions: include language below.
Benefit Overview:
This position offers a comprehensive benefits package including medical, dental, and vision insurance, a 401(k) with company match, paid time off, parental leave and potential for performance‑based bonuses depending on company and individual performance. Fresenius Medical Care maintains a drug‑free workplace in accordance with applicable federal and state laws.
EOE, disability/veterans

eQuest