Systems Engineer - AIX/Linux

Company Description Krasan Consulting Services is a Chicago boutique management consulting and technology solutions integrator.

As a certified BEP WBE with the State of Illinois and a certified WBE, MBE, and DBE recognized by the City of Chicago, Krasan provides complex technology solutions and services for clients in the Public and Commercial sectors.

With decades of experience, Krasan specializes in end-to-end technology solutions, integration, and implementation services and is proud to enable the success of our customers.

Role Title: Senior Platform Architect-Configuration Administration(Systems Engineer – AIX/Linux) Location: Remote Contract: 6 Months Type of contract: W2 Job Description: Client is seeking a highly skilled and self-motivated Systems Engineer with specialized expertise in the AIX operating system, automation scripting, and infrastructure support across complex server environments.

This role requires a deep understanding of enterprise server configuration, script development, and network protocol troubleshooting.

The ideal candidate will bring hands-on experience managing multi-server environments and coordinating with mainframe-based and distributed platforms.

This is a critical position ensuring operational efficiency, system integrity, and proactive infrastructure enhancements.

Key Responsibilities:Cron Tab Scheduling and Multi-Server CoordinationConfigure, manage, and troubleshoot Cron Tab jobs across a 5-server AIX infrastructure.Ensure scheduling consistency, job reliability, and environment-wide synchronization for batch and automation routines.AIX Operating System NavigationExpertly navigate the AIX operating system for system-level administration, monitoring, and troubleshooting.Perform system audits, configuration updates, and environment health assessments using AIX-specific tool sets.

Script Development and MaintenanceRead, analyze, modify, and optimize existing shell and automation scripts to enhance operational workflows.Write efficient scripts using PERL and Bash for automation of routine system tasks and maintenance operations.WebSphere MQ ConnectivitySupport and execute WebSphere MQ connectivity upgrades, including integration with mainframe environments.Ensure stable and secure message queuing operations across platforms.File System and Storage ManagementManage Volume Groups (VG), Logical Volume Manager (LVM) configurations, and file systems within AIX.Monitor and maintain balanced file systems, perform loglv configurations, and ensure proactive capacity planning across Physical Volumes (PV).Database Interaction and SupportPossess working knowledge of IBM DB2 for general database monitoring, configuration validation, and log troubleshooting.Collaborate with database administrators to ensure system and data layer compatibility.Mainframe InteractionNavigate and interpret mainframe screen interfaces to support job monitoring, log review, and connectivity testing.Provide basic operational support within mainframe-linked environments.Network Protocols and TroubleshootingDemonstrate a solid understanding of networking fundamentals including TCP/IP, DNS, DHCP, and firewall configurations.Perform root cause analysis using ARP table inspection, routing protocols, and packet inspection techniques.

Automation and Shell ProficiencyDevelop robust automation scripts to improve efficiency of system operations and deployments.Utilize command-line tools for file manipulation, process automation, performance tuning, and system health checks.

Required Skills and Experience:Proven experience working in a multi-server AIX environment.Strong hands-on proficiency in PERL and Bash scripting.Working knowledge of WebSphere MQ, including upgrade and connectivity procedures.Proficient in DB2 database fundamentals and operations.Familiarity with mainframe systems and command-line navigation.Expertise in networking protocols and tools for troubleshooting complex network issues.In-depth knowledge of LVM, VG, and file system management best practices.Demonstrated ability to automate system tasks and perform proactive systems monitoring.

Preferred Qualifications:Experience with hybrid infrastructures involving mainframe and AIX.Exposure to enterprise-grade backup/recovery and monitoring solutions.Certifications in AIX, Shell Scripting, Networking, or IBM systems a strong plus.Familiarity with ITIL processes and change control procedures.