Amex GBT is a place where colleagues find inspiration in travel as a force for good and – through their work – can make an impact on our industry. We’re here to help our colleagues achieve success and offer an inclusive and collaborative culture where your voice is valued.

**Key Responsibilities:**

**Application Support & Maintenance:**

• Provide L2/L3 application support for Java-based GBT mid and back office systems

• Monitor system health, performance metrics, and proactively identify potential issues

• Identify and fix production incidents, bugs, and performance bottlenecks

• Perform root cause analysis and implement permanent fixes for recurring issues

• Maintain system documentation, runbooks, and knowledge base articles

**System Operations & Monitoring:**

• Monitor applications deployed on AWS ROSA (Red Hat OpenShift Service on AWS) and EC2 instances

• Manage and optimize PostgreSQL databas...