Essendant Senior UNIX (Linux/AIX) Systems Administrator in Deerfield, Illinois

  • Responsible for maintaining 24/7 mission critical AIX /Linux systems in a multi-site hosting environment
  • Design, install, configure and maintain enterprise IBM POWER server hardware in multi-site hosting environment
  • Analyze, modify, and enhance operating systems, computer operations procedures, and system security
  • Deploy, support, and administer AIX /Linux server operating systems (AIX v6 and above)
  • Provide technical expertise on AIX /Linux infrastructure projects
  • Learn new hardware, software and technology products in the AIX /Linux environment
  • Execute major platform software and operating system upgrades and maintenance across a multi-LPAR environment
  • Proactively manage system resources to meet service level agreements assuring optimal performance and appropriate additional capacity for peak periods and growth
  • Assists in the development and testing of the Disaster Recovery Plan for servers
  • Provides support to internal customers and application owners
  • 5-10% travel required
  • 24-hour availability when on-call and the willingness to work outside business hours on weekdays and weekends in support of the AIX /Linux environment
  • Strong project delivery and support background working in a large enterprise environments (100+ servers)
  • Understands and demonstrates Essendant’s Core Values.

Skills/Knowledge Required

  • Excellent verbal and written interpersonal and communication skills
  • Ability to document and communicate complex concepts involving the products supported by the AIX /Linux Team
  • Create shell scripts or programs to automate and/or simplify the administrative procedures
  • Design package builds and utilize tools to deploy, backup operating system images and patches such as NIM and MKSYSB
  • Provide security and patch update analysis, process and deployment
  • Responsible for day to day monitoring, automation and support multiple UNIX Environments Operating System Distributions including, IBM AIX v6 and above, RHEL 5.x/6.x and Suse Linux
  • In depth experience with IBM/AIX, PowerVM/VIOS operating systems
  • Proficiency in MS Office Suite
  • Proven analytical and problem-solving abilities
  • Highly self-motivated and directed
  • Proven ability to identify, analyze, and resolve problems
  • Ability to effectively prioritize and execute tasks in a demanding environment

Education and Experience

  • Associates’ degree required in related discipline or equivalent experience
  • Bachelor of Arts or Science preferred
  • 8+ years overall IT experience
  • 5+ years’ experience managing IBM Power systems (p6 & p7) servers with virtual LPARS utilizing an HMC, & redundant VIO Server's (PowerVM) and AIX version 6 and above
  • 5+ years of virtualization experience on IBM Power systems and PowerVM
  • 4+ years of experience with Red Hat Enterprise Level Linux administration
  • Knowledge of UNIX shells and scripting (csh, sh, ksh, sed, awk) and the ability to do minimal debugging and modification those shell scripts
  • Host security (e.g., passwords, uids/gids, SIDs, file permissions, ACLs, file system integrity)
  • Skills and comprehensive understanding of enterprise server disaster recovery. Including IBM server backup image and recovery (MKSYSB)
  • Ability to conduct performance monitoring and (NMON) analysis of server environments diagnosing and resolving complex problems involving servers, EMC SAN and Networking
  • Data centers experience racking, cabling, configuring IBM servers and HMC consoles
  • Comprehensive knowledge of enterprise backup, replication and SAN technologies
  • Willingness to learn new software, hardware, and technologies in the UNIX environment. IBM Tivoli Monitoring and Tivoli Identity Manager
  • Tivoli Storage Manager backup experience a plus

Equal Opportunity Employer/Protected Veterans/Individuals with Disabilities

The contractor will not discharge or in any other manner discriminate against employees or applicants because they have inquired about, discussed, or disclosed their own pay or the pay of another employee or applicant. However, employees who have access to the compensation information of other employees or applicants as a part of their essential job functions cannot disclose the pay of other employees or applicants to individuals who do not otherwise have access to compensation information, unless the disclosure is (a) in response to a formal complaint or charge, (b) in furtherance of an investigation, proceeding, hearing, or action, including an investigation conducted by the employer, or (c) consistent with the contractor’s legal duty to furnish information.



Associates or better


Bachelors or better



8-10 years:

  • Overall IT experience


5-10 years:

  • Virtualization experience on IBM Power systems and PowerVM

5-10 years:Experience managing IBM Power systems (p6 & p7) servers with virtual LPARS utilizing an HMC, & redundant VIO Server's (PowerVM) and AIX version 6 and above

Posted: December 6, 2017