IBM Consultant

• Practice Cloud & Infrastructure

• Technologies Infrastructure & Cloud

• Location FRANCE, France

• Type Contract

IBM iSeries Technical Specialist – Job Description

Job Purpose

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 IBM iSeries‑based enterprise applications, ensuring uptime, performance and reliability.

• Act as the escalation point for all IBM 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, upgrades).

• Administer system security, user profiles and authority management.

• Monitor and optimise system performance across disk, CPU, memory and batch workloads.

Technical Expertise

• Strong knowledge of CL programming, QSH, SQL and DB2 for i.

• Troubleshoot issues within the Integrated File System (IFS).

• Manage and troubleshoot MQ Series / IBM MQ and other middleware components.

• Manage communications including TCP/IP, SNA and external system connectivity.

• Handle Digital Certificate Management on IBM i.

• Act as escalation point for desktop tools connecting to IBM i (iAccess Client Solutions, ODBC, Data Transfer, SFTP).

• Troubleshoot integrations between IBM i and other platforms, including cloud and open systems.

• Configure and support SSH server/client on IBM i.

Change & Release Management

• Assess and implement changes to the IBM i environment.

• Support application deployments and provide technical guidance during release activities.

• Maintain and update system documentation, runbooks and knowledge articles.

Collaboration & Mentoring

• Support first‑line and second‑line support teams.

• Collaborate with operations, application development, DBAs and infrastructure teams.

• Liaise with IBM and third‑party vendors for escalated support and licensing matters.

• Participate in capacity planning and technology roadmap discussions.

Essential Skills & Experience

• 5+ years hands‑on experience supporting IBM iSeries / AS400 / IBM i environments at an advanced level.

• Strong knowledge of IBM i OS (V7R3+).

• Proficiency in CL programming.

• Experience with DB2 for i (SQL, query optimisation, database administration).

• Solid understanding of IBM i security concepts (profiles, authority lists, auditing).

• Experience with job scheduling tools (Halcyon Scheduler or OS job scheduler).

• Knowledge of DR solutions and backup/recovery processes.

• Excellent knowledge of BRMS.

• Proficiency with MQ Series / IBM MQ on iSeries.

• Strong understanding of networking (TCP/IP, DNS, VPN) in IBM i environments.

• Familiarity with ITIL (Incident, Problem, Change).

• Excellent analytical and problem‑solving skills.

Knowledge of Third‑Party Applications

• DetectIT

• Password Self Help

• AldonCMS

• Filescope

• Lansa

• Gentran

• Powertech SIEM

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