AS400 Application Support Specialist (AMS)

Job Description: AS400 Application Support Specialist (AMS)

Location: Scarborough, Ontario, Canada

Work Model: Hybrid – 3 days onsite per week

Experience: 8+ years of experience in AS400

Industry: Banking / Financial Services

Working Hours: 40 hours per week

Engagement: Application Management Services (AMS)

Job Summary

We are looking for an experienced AS400 Application Support Specialist with 8+ years of hands-on experience in AS400/IBM i environments and a strong background in the banking or financial services industry. The ideal candidate will be responsible for application maintenance, production support, incident management, troubleshooting, and ensuring the stability and performance of critical banking applications.

The candidate should have strong technical expertise in AS400 systems, experience working in an AMS environment, and the ability to collaborate with business stakeholders and technical teams to resolve application issues efficiently.

Key Responsibilities

Provide application maintenance and support for AS400/IBM i-based banking applications.

Monitor production environments, troubleshoot issues, and ensure application availability and stability.

Analyze, diagnose, and resolve application incidents, service requests, and production defects within agreed SLAs.

Perform root cause analysis and implement corrective and preventive actions to minimize recurring issues.

Support application enhancements, bug fixes, code changes, and maintenance activities.

Work with AS400 technologies, including RPG/RPGLE, CL/CLLE, DB2/400, and SQL, as applicable to the environment.

Support batch processing, job scheduling, job failures, and application interfaces.

Collaborate with development, infrastructure, database, and business teams to resolve technical issues.

Participate in incident, problem, and change management processes within the AMS framework.

Prepare technical documentation, support procedures, and incident reports.

Follow banking industry standards for data security, operational controls, and compliance.

Required Skills and Qualifications

8+ years of hands-on experience working with AS400/IBM i systems.

Prior experience supporting banking or financial services applications is mandatory.

Strong experience in Application Management Services (AMS), production support, and application maintenance.

Knowledge of AS400 programming technologies such as RPG, RPGLE, CL, CLLE, and DB2/400.

Experience with incident management, problem management, troubleshooting, and root cause analysis.

Understanding of batch jobs, job scheduling, application monitoring, and production support processes.

Strong analytical, problem-solving, and communication skills.

Ability to work collaboratively with cross-functional teams in a fast-paced banking environment.

Willingness to work onsite in Scarborough, Ontario, three days per week.

Preferred Qualifications

Experience supporting mission-critical banking applications.

Familiarity with ITIL processes and SLA-driven support environments.

Experience with change management, release support, and production deployment processes.

Knowledge of banking operations, financial transactions, and related application workflows.

Ideal Candidate Profile

The ideal candidate is a seasoned AS400 professional with 8+ years of experience, strong banking domain knowledge, and proven expertise in AMS and production support. The candidate should be capable of independently troubleshooting complex application issues while maintaining the reliability and performance of critical banking systems.