Mainframe Production Support

Position Description:

This role is for a highly skilled Production Support Engineer with Site Reliability Engineering (SRE) expertise responsible for ensuring the availability stability performance and resiliency of missioncritical mainframe-based payment systems. The engineer will provide deep production support proactive monitoring incident management and reliability improvements for high-volume low-latency payment platforms.

The ideal candidate brings strong mainframe production support experience solid payments and banking domain knowledge and a mindset aligned with SRE principles including automation monitoring continuous improvement and operational excellence.

This role is hybrid and requires you to be at office at a minimum 4 days per week - subject to change at any time.

Your future duties and responsibilities:

Production Support & Reliability
Own 24x7 production support for mainframe-based payment applications ensuring high availability and minimal downtime.
Monitor system health performance and capacity using enterprise monitoring tools; proactively identify and mitigate risks.
Act as an L2/L3 support engineer for critical incidents performing root cause analysis (RCA) and driving permanent fixes.
Lead and support incident response major incident management and postincident reviews ensuring lessons are documented and applied.
SRE & Operational Excellence
Apply SRE principles to define and monitor SLIs SLOs and error budgets for payment systems.
Improve system reliability by reducing manual interventions through automation scripting and operational best practices.
Continuously optimize system performance batch throughput and transaction processing times on mainframe platforms.
Partner with development teams to shiftleft reliability concerns and improve operability before production releases.
Mainframe Operations & Payments Processing
Support and maintain mainframe environments (z/OS) handling high-volume payment transactions.
Monitor and support batch and online workloads including CICS IMS DB2 MQ and JCL-based processing.
Ensure endtoend processing integrity for payment flows including settlement reconciliation and exception handling.
Coordinate with infrastructure network and middleware teams during outages or system changes.
Change Release & Compliance
Support production releases system upgrades and configuration changes with minimal risk to live payment processing.
Ensure compliance with audit security and regulatory requirements inherent to banking and payments platforms.
Maintain accurate runbooks operational procedures and knowledge base documentation.

Required qualifications to be successful in this role:

Mainframe & Production Support
Strong hands-on experience in Mainframe Production Support (z/OS environment).
Working knowledge of CICS DB2 IMS MQ and batch processing (JCL).
Experience with performance tuning abend analysis dump analysis and job optimization.
Monitoring Reliability & Automation
Experience with enterprise monitoring and alerting tools for mainframe systems (e.g. OMEGAMON or equivalent).
Strong understanding of SRE concepts such as SLIs SLOs MTTR error budgets and reliability metrics.
Experience in scripting or automation (REXX shell Python or equivalent) to reduce manual operational effort.
Data & Analysis
Proficiency in SQL for querying DB2 and analyzing production data issues.
Ability to analyze system metrics logs and transaction traces to identify bottlenecks and failures.
Cloud & Modern Tooling (Good to Have)
Basic understanding of cloud concepts (Azure preferred) and hybrid architectures connecting mainframe with distributed systems.
Exposure to Generative AI / Copilot tools for operational efficiency incident analysis or knowledge management is a plus.

Required Domain Knowledge
Strong understanding of payments processing and payment rails such as SWIFT ACH Fedwire RTGS or equivalent.
Solid banking domain knowledge including transaction lifecycle settlements reconciliations and regulatory constraints.
Experience supporting mission-critical high-availability financial systems with strict SLAs.

Soft Skills & Behavioral Expectations
Excellent problemsolving and troubleshooting skills under highpressure production situations.
Strong communication skills to clearly articulate incidents impacts and remediation steps to stakeholders.
High sense of ownership accountability and customer focus.
Ability to collaborate effectively across development QA operations and business teams.

**CGI is providing a reasonable estimate of the pay range for this role. The determination of this range includes factors such as skill set level geographic market experience and training and licenses and certifications. Compensation decisions depend on the facts and circumstances of each case. A reasonable estimate of the current range is $80000$130000. This role is an existing vacancy.

#LI-BN

Skills:

• Applications Administration
• Financial Services
• Mainframe
• Python
• Shell Script
• SQL
• SWIFT
• Test automation
• Azure

What you can expect from us:

Together as owners lets turn meaningful insights into action.

Life at CGI is rooted in ownership teamwork respect and belonging. Here youll reach your full potential because

You are invited to be an owner from day 1 as we work together to bring our Dream to life. Thats why we call ourselves CGI Partners rather than employees. We benefit from our collective success and actively shape our companys strategy and direction.

Your work creates value. Youll develop innovative solutions and build relationships with teammates and clients while accessing global capabilities to scale your ideas embrace new opportunities and benefit from expansive industry and technology expertise.

Youll shape your career by joining a company built to grow and last. Youll be supported by leaders who care about your health and well-being and provide you with opportunities to deepen your skills and broaden your horizons.

At CGI we value the strength that diversity brings and are committed to fostering a workplace where everyone belongs. We collaborate with our clients to build more inclusive communities and empower all CGI partners to thrive. As an equal-opportunity employer being able to perform your best during the recruitment process is important to us. If you require an accommodation please inform your recruiter.

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