Senior Engineer II

Responsibilities

• Hands-on Development
• Design, develop, and maintain complex backend services and REST APIs using Java and Spring Boot.
• Architect and implement scalable microservices solutions for business-critical workflows.
• Build resilient, secure, and high-performing backend applications using enterprise Java patterns.
• Develop integrations with internal and external systems using synchronous and asynchronous communication patterns.
• Implement robust exception handling, logging, monitoring, and alerting in backend services.
• Participate actively in debugging, troubleshooting, and root cause analysis of complex application issues.
• Provide expert-level production support and ensure application stability and performance.
• Application Design & Engineering Practices
• Contribute to technical architecture and solution design discussions.
• Follow established design patterns, coding standards, and development best practices.
• Participate in code reviews and ensure adherence to quality, security, and maintainability guidelines.
• Work closely with product managers, architects, and stakeholders to understand business requirements and translate them into technical solutions.
• Contribute to continuous improvement in engineering practices, reusable components, and system reliability.
• Database Design & Performance
• Design efficient and scalable data models using PostgreSQL.
• Write optimized SQL queries and support data access layer implementation.
• Perform PostgreSQL performance tuning, query optimization, indexing, and database design improvements.
• Ensure high standards for data integrity, consistency, and transactional reliability.
• Support troubleshooting of database-related performance and production issues.
• Cloud & Platform Engineering
• Deploy and manage applications on AWS ROSA (Red Hat OpenShift Service on AWS).
• Manage and support workloads running on EC2 and cloud-native environments.
• Build and maintain containerized applications using Docker and Kubernetes/OpenShift.
• Implement cloud-native design principles for scalability, resilience, and maintainability.
• Collaborate with DevOps and infrastructure teams to improve deployment, runtime management, and environment stability.
• Event-Driven & Integration Architecture
• Design and implement integrations using Kafka and event-driven architecture principles.
• Build backend services that support asynchronous communication and distributed processing.
• Ensure reliability, scalability, and observability of event-driven workflows.
• Process & Delivery
• Participate in sprint planning, technical grooming, estimation, and delivery activities.
• Work closely with cross-functional teams to ensure smooth execution and timely delivery.
• Support agile development processes and continuous delivery practices.
• Follow established processes for development, release management, testing, and operational support.
• Contribute to documentation, technical knowledge sharing, and support procedures.
• Required Skills and Experience
• Minimum 5+ years of professional experience in Java development.
• Expert-level proficiency in Java 8+ / Java 11+ and advanced programming concepts.
• Deep expertise in Spring Boot, Spring Framework, and enterprise Java application development.
• Strong experience in designing and building RESTful APIs and backend services.
• Proven experience in microservices architecture, including scalable and distributed system design.
• Advanced knowledge of PostgreSQL, including: database design
• query optimization
• indexing strategies
• performance tuning
• transaction handling
• Extensive experience with AWS cloud services, particularly: ROSA (Red Hat OpenShift Service on AWS)
• EC2
• Strong hands-on experience with Docker, Kubernetes, and/or OpenShift.
• Experience with Kafka and event-driven architecture.
• Strong debugging, troubleshooting,

Requirements

• The ideal candidate must be capable of developing robust backend solutions, resolving complex production issues, and working effectively with cross-functional teams to deliver reliable and high-performing applications.

Additional Information

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.

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