Infrastructure System Admin

TechDoQuest; Toronto; On-site; CAD 90,000 - 130,000; Part time

Job summary

TechDoQuest is hiring an Infrastructure System Admin with senior-level expertise in IBM HTTP Server (IHS) and WebSphere Application Server (WAS). The role leads strategic planning, design, and ongoing management of middleware across HA environments, with a focus on security and performance.

Contract position requiring strong automation skills (Python, Jython, Ansible) and collaboration with devops, security, and architecture teams.

Qualifications

• Bachelor's degree in computer science or related field.
• 7+ years as Middleware Administrator focusing on IHS and WAS.
• Strong knowledge of IHS/WAS architectures and admin.
• Security principles for middleware, authentication, encryption.
• Scripting/automation with Python, Jython, Ansible.

Responsibilities

• Lead design, implementation and maintenance of IHS and WAS environments, including HA configs.
• Develop and enforce middleware standards, policies, and procedures.
• Expert-level troubleshooting for critical middleware issues.
• Lead performance tuning and optimization for middleware performance.
• Design and implement security architectures for IHS/WAS including auth and encryption.
• Plan middleware upgrades, patching, and migrations.
• Automate middleware tasks with scripting and automation tools.
• Collaborate with dev, infra, security, and architecture teams.
• Mentor junior middleware admins.
• Participate in on-call rotation and after-hours support.
• Evaluate new middleware technologies and tools.
• Lead capacity planning and performance monitoring.

Skills

IHS expertise

WAS expertise

Python

Jython

Ansible

Linux

Communication

Education

Bachelor's degree in Computer Science or related field

Tools

Dynatrace

AppDynamics

New Relic

Job description

This job posting is for an existing, active vacancy and we are looking to hire strong Infrastructure System Admin.

The Senior IHS/WAS Middleware Administrator is a technical leader responsible for the strategic planning, design, implementation, and ongoing management of IBM HTTP Server (IHS) and WebSphere Application Server (WAS) environments. This role requires deep expertise in middleware technologies, security architecture, and high-availability solutions. The Senior Administrator will lead efforts to ensure the stability, scalability, security, and optimal performance of the middleware infrastructure supporting critical business applications. They will also provide mentorship and guidance to junior administrators.

Job Title: Infrastructure System Admin

Mode: Contract

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.