Senior AS/400 & Post-Trade Systems Engineer

Recruit Express Pte Ltd; Singapore; On-site; SGD 120,000 - 180,000; Full time

Job summary

Recruit Express Pte Ltd in Singapore is seeking an experienced AS/400 specialist to provide Level 2/3 support for production incidents in highly sensitive financial environments, often across multiple global sites.

You will design and maintain software modules using RPG (III, IV, Free Form) and CL, perform OS upgrades and patch management, and lead the development of post-trade applications for trade matching, settlement, and payment processing.

Qualifications

• At least 8 years of experience in technical support with trading or financial services applications.
• Expert-level proficiency in implementing and managing AS/400 systems.
• Advanced knowledge of DB2/400 and SQL for financial transaction mapping.
• Familiarity with SWIFT messaging standards and MQ integration.

Responsibilities

• Provide Level 2/3 support for production incidents in sensitive financial environments across global sites.
• Design and maintain software modules using RPG (III, IV, Free Form) and CL.
• Perform OS upgrades, managing LPAR configurations and patch management.
• Enhance the AS400 system by developing and refreshing processes for performance.
• Lead design and development of post-trade applications for trade matching, settlement, and payments.
• Automate and streamline post-execution operations including trade booking and intercompany settlements.
• Integrate legacy AS/400 apps with modern platforms using APIs, web services, or middleware like IBM App Connect Enterprise or MQ.
• Ensure systems meet regulatory requirements for data integrity, security, hardening and disaster recovery.
• Coordinate testing, approvals and deployment of enhancements with post-deployment verifications.
• Handle ad-hoc tasks such as reports and data analysis on request.
• Monitor performance and proactively identify areas for improvement.

Skills

Level 2/3 support

AS/400 expert

DB2/400 proficiency

SQL proficiency

MQ / messaging

SWIFT familiarity

Problem solving

Communication skills

Team collaboration

Interest in financial markets

Tools

AS/400

DB2/400

MQ

IBM App Connect Enterprise

SWIFT

Job description

Recruit Express Pte Ltd in Singapore is seeking an experienced AS/400 specialist to provide Level 2/3 support for production incidents in highly sensitive financial environments, often across multiple global sites.

You will design and maintain software modules using RPG (III, IV, Free Form) and CL, perform OS upgrades and patch management, and lead the development of post-trade applications for trade matching, settlement, and payment processing.