To provide expert-level technical support for the IBM iSeries (AS/400 / IBM i) platform, acting as the escalation point for complex incidents and problems. Ensure platform stability, performance, and availability while driving continuous improvement and supporting business-critical applications.
Key Responsibilities Incident & Problem Management • Provide day-to-day support for iSeries-base enterprise applications, ensuring uptime, performance and reliability • Act as the escalation point for all iSeries-related incidents and problems • Diagnose and resolve complex system issues including performance degradation, job failures, and system outages • Perform root cause analysis (RCA) on recurring or high-impact incidents System Administration & Maintenance • Manage and maintain IBM i operating system environments (PTFs and system upgrades) • Administer system security, user profiles, and authority management • Monitor and address any issues with system performance, including disk, CPU, memory, and batch workload management Technical Expertise • Deep technical knowledge of CL programming, QSH, SQL and DB2 for i • Support and troubleshoot integrated file systems (IFS) issues • Manage and troubleshoot MQ Series and other middleware components • Manage communications including TCP/IP, SNA, and connectivity to external systems • iSeries Digital Certificate Management • Escalation point for all desktop software that connects to iSeries - iAccess Client Solutions, ODBC, Data transfer, SFTP • Troubleshoot integrations between iSeries and other platforms, including cloud services and open systems • SSH server client configuration on iSeries Change & Release Management • Assess and implement changes to the iSeries environment • Support application deployments and provide technical guidance during release activities • Maintain and update system documentation, runbooks, and knowledge articles Collaboration & Mentoring • Support first and second level support teams • Collaborate with operating support teams, application development teams, DBAs, and infrastructure colleagues • Liaise with IBM and third-party vendors for escalated support and licensing matters • Participate in capacity planning and technology roadmap discussions
Minimum 5+ years hands-on experience supporting IBM iSeries / AS400 / IBM i environments • at an advanced level • Strong knowledge of IBM i operating system (V7R3+) • Proficiency in CL programming • Experience with DB2 for i (SQL, query optimisation, database administration) • Solid understanding of iSeries security concepts (profiles, authority lists, auditing) • Experience with job scheduling tools (e.g., Halcyon Scheduler, OS job scheduler) • Knowledge of DR solutions and backup/recovery process • Excellent knowledge of BRMS • Proficiency with MQ Series / IBM MQ on iSeries • Thorough understanding of networking (TCP/IP, DNS, VPN) in the context of IBM i • Familiarity with ITIL frameworks (Incident, Problem, Change Management) • Excellent analytical and problem-solving skills
DetectIT • Password Self Help • AldonCMS • Filescope • Lansa • Gentran • • Powertech SIEM
HCLTech is a global technology company, home to more than 226,600 people across 60 countries, delivering industry-leading capabilities centered around digital, engineering, cloud and AI, powered by a broad portfolio of technology services and products. We work with clients across all major verticals, providing industry solutions for Financial Services, Manufacturing, Life Sciences and Healthcare, Technology and Services, Telecom and Media, Retail and CPG, and Public Services. Consolidated revenues as of 12 months ending September 2025 totaled $14.2 billion. To learn how we can supercharge progress for you, visit hcltech.com.
