IBMi/AS400 Senior Support Engineer

In this role, you will lead technical delivery for IBM i / AS/400 environments across managed services and project-based engagements. You will plan and execute patch management programs, guide infrastructure and automation workstreams, support upgrades and migrations, advise enterprise clients, and help ensure mission-critical platforms remain stable, secure, compliant, and operationally efficient.

• Lead technical delivery for IBM i / iSeries managed services and project engagements, including planning, risk management, dependencies, and mitigation actions.

• Lead IBM i security initiatives including user profile governance, authority management, auditing, compliance reviews, MFA integrations, vulnerability remediation, and system hardening activities.

• Analyze and resolve system performance bottlenecks involving CPU, memory, disk, job subsystems, Db2 for i workloads, and application execution characteristics.

• Provide hands-on guidance for IBM i infrastructure architecture, automation, integrations, deployments, upgrades, migrations, and platform readiness.

• Design, test, validate, and deploy patching, PTF management, monitoring, compliance, and operational processes across development, QA, and production environments.

• Administer, validate, and support high availability and disaster recovery solutions including PowerHA, MIMIX, Quick-EDD, iCluster, and backup/recovery testing programs.

• Support IBM Power Systems infrastructure including PowerVM, logical partitions (LPARs), virtual I/O configuration, storage connectivity, firmware maintenance, and platform lifecycle planning.

• Drive standardized, scalable technical decisions that improve platform stability, security, compliance, maintainability, and operational efficiency.

• Serve as a primary client-facing technical contact, translating business objectives into practical roadmaps, execution plans, milestones, and recommendations.

• Support managed services delivery and pre-sales solutioning with IBM and third-party vendors for upgrades, migrations, disaster recovery, hardware, and service expansion opportunities.

• Support modernization initiatives involving REST APIs, web services, integration platforms, automation frameworks, and hybrid cloud architectures.

• 7+ years of consulting, managed services, or enterprise infrastructure experience, with hands-on IBM i / AS/400 administration, maintenance, patching, or upgrade experience.

• Strong knowledge of IBM i / iSeries operations, Power systems, PTF management, high availability, disaster recovery, monitoring, and platform governance.

• Experience administering IBM i operating systems including user profiles, subsystems, job scheduling, BRMS, system values, TCP/IP services, printing, security, and performance monitoring.

• Working knowledge of IBM Power Systems hardware, PowerVM virtualization, HMC administration, LPAR management, firmware maintenance, and storage integration.

• Experience with one or more IBM i high availability technologies such as MIMIX, PowerHA, Quick-EDD, or iCluster.

• Familiarity with Db2 for i administration, SQL performance analysis, database maintenance, backup strategies, and application troubleshooting.

• Experience with automation and scripting technologies including CL, RPG utilities, SQL Services, ACS Run SQL Scripts, Python, Ansible, or PowerShell.

• Experience leading technical delivery activities, projects, workstreams, or small-to-moderate teams in client-facing environments.

• Ability to engage senior technical stakeholders, translate requirements into actionable plans, and communicate complex topics clearly to technical and non-technical audiences.

• Experience developing automated testing, validation, monitoring, compliance, or operational tooling for IBM i / AS/400 environments.

• Experience with the following: System outages, PTF failures, HA role swaps, DR tests, IPL planning, P1/P2 application incidents, JD Edwards

• Strong problem-solving, documentation, quality, follow-through, collaboration, and service delivery governance skills.

• IBM i certifications, Power Systems certifications, ITIL certifications, or equivalent industry experience preferred.

• Prior consulting or managed services experience preferred, including familiarity with ITIL, change management, incident management, vendor coordination, and scheduled off-hours support.