Infrastructure System Admin

Job summary

Lead the design, implementation, administration, security, upgrades, and optimization of highly available IHS and WAS environments, including automation, capacity planning, and performance monitoring. Resolve critical middleware issues, collaborate with technical teams, mentor junior administrators, and provide on-call support.

Job details

Job Title: Infrastructure System Admin Location: Toronto, ON (3x onsite a week) Employment Type: Contract Pay Rate: CAD$45/HR INC Key Responsibilities Lead the design, implementation, and maintenance of complex IHS and WAS environments, including clustered and highly available configurations. Develop and enforce middleware standards, policies, and procedures. Provide expert-level troubleshooting and problem resolution for critical middleware issues. Lead performance tuning and optimization efforts to ensure optimal application performance. Design and implement security architectures for IHS and WAS environments, including authentication, authorization, and encryption. Plan and execute middleware upgrades, patching, and migrations. Automate middleware administration tasks using advanced scripting and automation tools. Collaborate with development, infrastructure, security, and architecture teams to define and implement middleware solutions. Mentor and provide technical guidance to junior middleware administrators. Participate in on-call rotation and provide after-hours support as needed. Evaluate and recommend new middleware technologies and tools. Lead capacity planning and performance monitoring initiatives. Qualifications Bachelor s degree in computer science or a related field. Extensive experience (7+ years) as a Middleware Administrator, with a strong focus on IHS and WAS. Expert-level knowledge of IHS and WAS architectures, configuration, and administration. Proven experience designing and implementing high-availability and disaster recovery solutions for IHS and WAS. Deep understanding of security principles and best practices for middleware environments. Strong scripting and automation skills (e.g., Python, Jython, Ansible). Experience with monitoring and performance tuning tools (e.g., Dynatrace, AppDynamics, New Relic). Excellent troubleshooting and problem-solving skills. Strong communication and interpersonal skills. Experience with Linux operating systems. IBM Certified System Administrator - WebSphere Application Server Network Deployment or similar certification is highly desirable. Disclaimer: AI tools may assist in the recruitment process; however, all hiring decisions are made by the recruitment team based on a comprehensive evaluation of candidates.

What you’ll do

Lead the design, implementation, administration, security, upgrades, and optimization of highly available IHS and WAS environments, including automation, capacity planning, and performance monitoring. Resolve critical middleware issues, collaborate with technical teams, mentor junior administrators, and provide on-call support.

Requirements

Requires a bachelor’s degree in computer science or a related field and at least seven years of middleware administration experience focused on IHS and WAS. Candidates should have expertise in high availability, disaster recovery, security, Linux, scripting and automation, and performance monitoring; an IBM WebSphere certification or equivalent is highly desirable.

Listed skills

• Troubleshooting · Preferred
• Linux · Preferred
• Python · Preferred

Other relevant skills

Identified from the job description. Confirm important requirements above.

• IBM HTTP Server (IHS)
• WebSphere Application Server (WAS)
• Middleware Administration
• High Availability
• Disaster Recovery
• Security Architecture
• Performance Tuning
• Troubleshooting
• Python
• Jython
• Ansible
• Linux
• Dynatrace
• AppDynamics
• New Relic
• Capacity Planning

Job areas

• Technology
• Engineering
• Management & Leadership

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