Sr System Engineer; IBM series

The Senior Systems Engineer designs, builds, and supports enterprise technical infrastructure with a primary focus on the IBM i platform
. This role is responsible for developing and implementing solutions that ensure system stability, scalability, security, and performance, while supporting evolving business needs. The position operates independently on complex issues and serves as a senior technical resource within the infrastructure team.

• Support the collection and analysis of business and technical requirements using interviews, document analysis, and workflow evaluations to ensure clear and accurate understanding of system needs.
• Recommend and implement technical enhancements to improve the quality, performance, reliability, and security of applications and supporting infrastructure.
• Document current-state (“as-is”) and future-state (“to-be”) architectures, identifying required changes and contributing to implementation and migration plans.
• Communicate local action plans and align technical activities with broader organizational strategies; support and motivate team members to achieve business objectives.
• Provide technical guidance, training, and assistance to users and internal teams to resolve complex infrastructure and platform-related questions.
• Monitor servers, system configurations, and environments to ensure data integrity, system availability, and software reliability.
• Analyze systems, hardware, and software to proactively identify risks, performance issues, and capacity constraints.
• Provide fault isolation and resolution for complex infrastructure issues, acting as a senior escalation point.
• Open and manage support tickets with third-party vendors as required to resolve platform or infrastructure issues.
• Provide on-call or pager support for assigned areas of responsibility, as needed.
• Stay current with emerging technologies and industry trends, contributing to assessments of their potential impact or applicability to the organization.
• Contribute to continuous improvement initiatives by reviewing existing infrastructure operations and proposing enhancements to processes, tools, and system design.
• Support organizational knowledge management efforts by creating and maintaining technical documentation, procedures, and best practices.
• Develop and maintain technical capabilities through formal training, self-directed learning, and knowledge sharing.

• Strong experience managing, supporting, and troubleshooting IBM i (AS/400) infrastructure environments.
• Proven ability to identify, diagnose, and resolve complex technical problems using established solution frameworks.
• Experience reviewing business and technical requirements and developing appropriate implementation plans.
• Ability to design, execute, and document system and service tests to validate functionality and stability.
• Experience conducting gap analyses and contributing to change strategies and implementation planning.
• Strong understanding of business context, technical architecture, and operational processes, with the ability to document both current and future states.
• Ability to analyze system and performance data, identify trends, and support informed technical decision‑making.
• Strong communication skills with the ability to collaborate effectively with technical and non-technical stakeholders.

• Education:
  
  Bachelor’s Degree or equivalent experience
• Experience:
  
  Experienced practitioner able to work independently on complex systems
• Leadership:
  May provide general supervision, guidance, or mentoring to junior team members

O’Reilly Auto Parts has a proven track record of growth and stability. O’Reilly is full of successful career stories and believes in a strong promote‑from‑within philosophy, encouraging you to grow your career along with the organization.

• Competitive Wages & Paid Time Off
• Stock Purchase Plan & 401k with Employer Contributions Starting Day One
• Medical, Dental, & Vision Insurance with Optional Flexible Spending Account (FSA)
• Team Member Health/Wellbeing Programs
• Tuition Educational Assistance Programs
• Opportunities for Career Growth

O’Re…