L2 Application Support Engineer - MoMo

We are looking for an experienced L2 Application Support Engineer - MoMo with strong hands-on experience in databases, Linux, transaction troubleshooting, integrations, and production support.

Job Responsibilities:

- Investigate escalated transactions across the full processing path — channel, access gateway, core platform, and downstream bank/aggregator.

- Query platform databases to reconstruct transaction histories and produce operational reports and extracts.

- Analyse application and system logs across servers and Kubernetes workloads, including events recorded across different time zones.

- Respond to monitoring alarms covering transaction success rates, storage utilisation, cluster health, and node health.

- Troubleshoot bank and partner integrations, including request/response analysis, certificates, HTTP/error codes, and fault isolation.

- Administer service-provider portal accounts, roles, permissions, and reporting entitlements.

- Produce incident reports, root-cause analyses (RCAs), runbooks, and known-issue documentation.

- Validate fixes and configuration changes in test environments before production deployment.

- Participate in the L2 on-call support rotation

Job Skills and Qualifications:

- 4+ years of application or production support experience with substantial hands-on database and Linux work.

- Strong SQL skills, including multi-table joins, aggregation, indexed time-window queries, and awareness of query impact on high-volume databases.

- Ability to trace individual transactions across multiple components and identify the failing point through log analysis.

- Kubernetes operational knowledge — pods, deployments, logs, events, restart loops, and resource constraints.

- Experience troubleshooting REST/SOAP integrations, HTTP status codes, APIs, certificates, and request/response flows.

- Understanding of transaction reversal and reconciliation processes.

- Ability to distinguish genuine ledger discrepancies from expected fees or timing differences.

- Strong production discipline: read-only by default, controlled changes, prior approval, and rollback planning.

- Strong documentation skills covering RCAs, runbooks, incident reports, and known issues.

- Experience with mobile money or payment platforms such as Huawei, Comviva, Ericsson, Fundamo, or similar.

- Python or shell scripting skills for reporting and bulk verification.

- Experience producing SQL-based operational/business reports.

- Exposure to USSD, SMPP, or SMS infrastructure.

- Experience using version control for operational scripts and documentation.

- Bachelor’s degree in Computer Science, Engineering, IT, or a related field. Equivalent practical experience will also be considered.