Sr Software Engineer iSeries

Job Objective

The iSeries Production Support Engineer is responsible for the stability availability and performance of mission-critical applications at the Mattel Asia Manufacturing facility (China and Southeast Asia) and of in-house-developed applications on the IBM i (iSeries/AS/400) platform. This role provides L2/L3 support including incident response batch/job scheduling via CA Scheduler HA/DR support performance troubleshooting and release/change activities. Youll partner closely with application developers (RPG/CL) infrastructure administrators business analysts and business stakeholders to minimize downtime protect data integrity and ensure timely batch completion.

Key Responsibilities

Production Support / Incident Management

• Provide L2/L3 production support for IBM iSeries applications built in RPG (RPGLE/ILE) CL/CLLE and SQL on Db2 for iSeries
• Monitor application health system logs and performance metrics and identify potential issues.
• Analyze troubleshoot and resolve production incidents within defined SLA timelines.
• Perform root cause analysis (RCA) and implement permanent fixes or preventive measures.
• Handle on-call support and incident escalations as required.

Application and System Maintenance

• Support application deployments hotfixes and patches in production environments.
• Perform configuration changes and environment validation across the Development UAT and Production environments.
• Ensure application uptime reliability and data integrity.
• Coordinate with infrastructure teams on server database and network-related activities

Monitor & Performance

• Monitor application performance  

• Identify performance bottlenecks and work with development teams to optimize applications.
• Track recurring incidents and recommend improvements.

Collaboration & Communication

• Work closely with application development teams to understand application design and business expectations

• Communicate effectively with business users and stakeholders during incidents and outages (P1 and P2)
• Participate in release planning post-release validation and post-incident reviews.

Document & Compliance

• Maintain production supports documentation runbooks and standard operating procedures (SOPs).
• Document known issues workarounds and fixes.
• Ensure compliance with organizational change management and security standards.

Required Skills & Qualifications

Technical Skills

• Strong handson experience with IBM i (iSeries/AS/400) operations
• Proficiency in RPG (RPGLE/ILE) and CL/CLLE; solid knowledge of SQL/Db2 for i (querying tuning access paths).
• Practical experience administering CA Job Scheduler on IBM i (job definitions calendars dependencies notifications).
• Familiarity with HA/DR technologies on IBM i (e.g. MIMIX PowerHA or similar): monitoring replication audits and role swaps.
• Understanding of ITIL processes (Incident Problem Change Knowledge).

Soft Skills

• Strong analytical and problem-solving skills.
• Ability to work under pressure in high-availability production environments (supporting manufacturing plants expected shorter resolution time)
• Strong communication and presentation skills with end users and business stakeholders
• Strong attention to detail and documentation discipline.

Qualifications :

Education & Experience

• Degree in computer science Information Technology or related field (or equivalent experience)
• Min 5 years of experience in iSeries / application development or support area
• Understanding of manufacturing back office shop floor operation and trading companies operation is value added
• Eager to work on-call or non regular hours (Asia time zone) whenever necessary
• Eager to travel for intensive training during the initial 6-12 months

Remote Work :

No

Employment Type :

Full-time