iSeries System Operator

About the role

Fiserv is looking for an iSeries System Operator to support the daily operations of the Signature core banking platform. You will monitor IBM i (iSeries/AS400) production environments, manage batch processing, and ensure the stability of mission‑critical banking applications in a fast‑paced fintech setting.

Key responsibilities

• Monitor IBM i (iSeries/AS400) production environments and ensure successful daily processing cycles.
• Execute and support end‑of‑day, beginning‑of‑day, and scheduled batch processing activities.
• Manage jobs, job queues, output queues, spool files and system messages.
• Investigate and resolve production incidents, escalating when necessary.
• Participate in on‑call rotations for mission‑critical banking applications.
• Coordinate with developers, infrastructure engineers and client‑facing teams during incident resolution.
• Maintain operational documentation, runbooks and processing procedures.

Required profile

• Associate’s or Bachelor’s degree in IT, Computer Science, Engineering or related field.
• 3+ years of experience supporting IBM i (iSeries/AS400) production environments.
• Proven experience with batch processing and enterprise application support.
• Strong troubleshooting, analytical and problem‑solving abilities.
• Ability to work effectively in a 24x7 production support environment.
• Excellent verbal and written communication skills.

Required skills

• IBM i (iSeries/AS400) operational commands and job management.
• IBM i Access Client Solutions (ACS) and 5250 emulation.
• DB2 for i database administration.
• Job scheduling platforms and batch automation tools.
• ITIL Incident, Problem, Change and Release Management practices.