We are looking for a Systems Engineer to support and debug production issues in the Transaction (TXN) / POS vertical. This role is part of the Vertical Applications and Hardware Payments ecosystem, supporting in-store applications, payment devices, cashflow systems, and system accounts.

You will work closely with APAC stakeholders, local carriers, and cross-functional teams to troubleshoot POS, FSI, and transaction-related issues. This is a hands-on L1–L3 production support role requiring strong technical expertise and Japanese communication skills.

Key Responsibilities

Debug and resolve production issues across POS systems, TXN services, FSI, and in-store applications
Support hardware verticals including payment devices, cashflows, and system accounts
Perform log analysis and root cause analysis using tools like Splunk
Troubleshoot API integrations with local carriers (e.g., device activation flows)
Work with platform teams to resolve upstream and downstream dependencies
Provide L1, L2, and L3 support including incident and problem management
Communicate effectively with Japanese-speaking stakeholders via email, calls, and war rooms
Collaborate with APAC teams across Singapore and India
Create and maintain technical documentation and runbooks

Automation & Continuous Improvement

Identify repetitive operational tasks and suggest improvements
Build or propose simple tools, scripts, or automation solutions
Support integration of automation into daily workflows

Required Qualifications & Skills

5+ years of experience in Systems Engineering, Production Support, or Application Support roles
Strong experience with Java-based applications
Proficiency in SQL for data querying and debugging
Hands-on experience with Splunk or similar log analysis tools
Experience debugging APIs and distributed systems
Exposure to POS systems, payment devices, or transaction platforms
Strong understanding of system integrations and dependencies
Experience in incident management (ITIL practices preferred)
Japanese language proficiency (business to native level – written & verbal)
Willingness to work in Singapore business hours and support on-call rotations

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