Application Support Engineer- IBM System Administration

Asticom Technology Inc; Taguig; On-site; PHP 900,000 - 1,300,000; Full time

Job summary

Asticom Technology Inc. seeks an experienced Application Support Engineer to serve as a Subject Matter Expert for essential business systems. You will lead incident resolutions, guide team members, and ensure continuous reliability through proactive monitoring and stakeholder coordination.

You will drive troubleshooting, performance optimization, and SOPs, while mentoring engineers and collaborating across teams to maintain service excellence.

Qualifications

• 5+ years of hands-on IBM AS/400 Administration.
• Deep knowledge of AS/400 architecture, procedures, and optimization.
• Proficient in troubleshooting enterprise system issues and automation.

Responsibilities

• Serve as SME to guide, mentor, and manage team performance and decisions.
• Lead cross-team efforts to investigate and resolve complex issues and incidents.
• Coordinate with internal and external stakeholders for timely resolutions.
• Establish SOPs and automation to drive continuous improvement.
• Oversee system stability, capacity planning, backup/recovery, and tuning.

Skills

IBM AS/400 Administration

System architecture

Performance optimization

Troubleshooting

Scripting/Automation

Leadership

Backup/Recovery

Job description

We are seeking an experienced Application Support Engineer to serve as a Subject Matter Expert (SME) in maintaining, troubleshooting, and optimizing our essential business systems. In this role, you will lead incident resolutions, guide team members, and ensure the continuous reliability and performance of enterprise systems through proactive monitoring and effective stakeholder coordination.

Key Responsibilities

• Serve as an SME to guide, mentor, and manage team performance and technical decision-making.

• Lead cross-team efforts to investigate, troubleshoot, and resolve complex technical issues and incidents.

• Coordinate with internal teams and external stakeholders to ensure timely service request resolutions.

• Drive continuous improvement by establishing best practices, SOPs, and task automation.

• Oversee system stability, capacity planning, backup/recovery procedures, and performance tuning.

Qualifications & Technical Skills

• Experience: Minimum 5 years of hands‑on experience in IBM AS/400 Administration.

• Core Expertise: Deep knowledge of IBM AS/400 system architecture, operational procedures, and performance optimization.

• Technical Proficiency: Strong skills in troubleshooting complex enterprise system issues, backup/recovery protocols, and operational scripting/automation.

• Leadership: Proven ability to lead team decisions, mentor junior engineers, and collaborate across multi-functional teams.