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We are currently seeking a Mainframe Performance and Capacity Management Engineer to join our team in Montreal, Quebec (CA-QC), Canada (CA).

Job Description

• The Mainframe performance and capacity management engineer will be responsible for real-time mainframe performance monitoring, anomaly detection, and incident prevention to support our mission-critical workloads.

• You will use your expertise in performance optimization, capacity planning, and data analysis to identify both performance and capacity exceptions, ensuring our mainframe infrastructure operates efficiently and effectively.

• Leverage advanced tools and your technical expertise to safeguard performance, optimize resources, and enable seamless operations across critical business workloads. Collaborate with infrastructure, DevOps, operations, and application teams to ensure optimal workload behavior, guide performance tuning, and surface insights that drive engineering and business decisions.

Responsibilities:

Performance Management and Capacity Planning:

• Monitor real-time z/OS system health and performance across CPU, memory, DASD, and WLM-managed workloads, using tools including RMF, SmartIS, IzPCA, MICS, and other internal tools. Analyze performance data to identify trends, bottlenecks, and potential issues.

• Detect, troubleshoot, and resolve resource anomalies, workload misbehaviors, and degradation risks in production systems. Partner with incident response teams to resolve performance issues quickly and accurately.

• Develop and implement performance tuning strategies by recommending changes to service definitions, dispatching priorities, and workload placement.

• Contribute to capacity planning by forecasting and modeling workload resource demand & capacity requirements.

• Support cost modeling, vendor reporting (SCRT), infrastructure sizing and resource optimization efforts.

Data Analysis:

• Collect and analyze system performance data to generate reports and dashboards.

• Identify key performance indicators (KPIs) and develop metrics to track system performance.

• Visualize, summarize and present data findings, recommendations, and methodology to senior leadership, department leadership and enterprise stakeholders (technical and non-technical stakeholders)

Collaboration and Communication:

• Work closely with cross-functional teams, including operations, development, and infrastructure teams.

• Provide technical support and guidance to team members and stakeholders.

• Participate in on-call rotations and provide timely responses to performance and observability issues.

• Participate in migration of performance/capacity tooling to Git change management and DevOps deployment pipelines.

Basic Qualification:

• Bachelor's degree in information systems, Mathematics, Finance or another quantitative or related subject

• 10+ years of mainframe systems experience with proficiency in performance management for large, multi-processor, multi-LPAR, Parallel Sysplex environments utilizing z/OS

• Proven 10 + Years of experience in mainframe performance monitoring, observability, capacity management, and data analysis.

• Proven 10 + Years of experience resolving systems performance problems in real-time via adjustments to WLM and batch initiators.

• 10 + Years experience of Strong understanding of PR/SM.

• Proficiency 10 + Years of in REXX/Python, Job Control Language (JCL) & DB2

• Strong understanding of Batch Processing and Job Scheduling

• Advanced user of MS Excel (Charts, Pivot tables, Vlookups, PowerPivot) and PowerPoint for data visualization.

• 10 + Years of Experience with mainframe monitoring tools and performance tuning techniques.

• 10 + Years of Experience working with large highly transactional datasets to draw insights and create organizational value.

• 10 + Years of Experience with DevOps is a plus

• 10 + Years of Experience working with ADABAS is a plus

Qualifications:

• Strong analytical, problem solving and strategic thinking skills including the ability to prioritize.

• Proficiency in data analysis and creation of dashboards and various visualizations that will provide actionable insights for operations, engineering and management decision making.

• Working knowledge of MS Office suite for management reporting using both PowerPoint and Excel analytical functions

• Comfortable taking information from disparate systems to bring data elements together for meaningful insights

• Analyze and solve business problems at their root, stepping back to understand the broader context.

• Excellent written and verbal communication skills.

• Ability to work independently and as part of a team.

• Detail-oriented with strong organizational skills.

• Deep expertise with SMF/RMF data, WLM service definitions, and z/OS workload behavior.

• IBM SCRT Reporting (plus)

• MICS Product & Reporting experience (huge plus)

• iZPCA Product experience (plus)

• Exhibit good time management skills, independent thinking and decision-making capabilities.

• High sense of urgency and ability to prioritize competing requirements in a fast-paced environment.

About NTT DATA:

NTT DATA is a $30 billion trusted global innovator of business and technology services. We serve 75% of the Fortune Global 100 and are committed to helping clients innovate, optimize and transform for long term success. As a Global Top Employer, we have diverse experts in more than 50 countries and a robust partner ecosystem of established and start-up companies. Our services include business and technology consulting, data and artificial intelligence, industry solutions, as well as the development, implementation and management of applications, infrastructure and connectivity. We are one of the leading providers of digital and AI infrastructure in the world. NTT DATA is a part of NTT Group, which invests over $3.6 billion each year in R&D to help organizations and society move confidently and sustainably into the digital future. Visit us at us.nttdata.com

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