Specialized Software Developer

Our client, a leading telecommunications provider, is seeking a Senior Java/AWS Engineer – Transactional Systems. This individual will play a key role in developing and modernizing large-scale transactional systems that track customer experiences during service interruptions.

The ideal candidate will have strong Java and AWS expertise, along with a deep understanding of transactional systems, microservices architecture, and reliable transaction processing. This role will support ongoing modernization efforts, including migrating legacy applications from TIBCO to Java and AWS.

• Contract Type and Duration:
  Contract
• Work Location:
  
  St. Louis, MO
• Work Arrangement:
  Hybrid

• Design, develop, and maintain Java code for large-scale transactional systems and microservices
• Contribute to ongoing modernization initiatives, including migrating legacy applications from TIBCO to Java and AWS
• Support the migration of five applications, with two planned for this year and three planned for next year
• Design and implement reliable transactional workflows, ensuring data consistency, transaction integrity, and predictable system behavior across interconnected components
• Develop and maintain event-driven architectures and messaging integrations using Kafka, Amazon SQS, and Amazon Event Bridge
• Collaborate across complex, interconnected systems involving numerous components, dependencies, and data points to deliver accurate and reliable customer outage information
• Troubleshoot complex system behaviors, identify potential failure points, and contribute ideas to improve system reliability, scalability, and maintainability

• Strong hands-on Java development experience, including building and maintaining enterprise-scale applications
• Strong AWS experience, with the ability to develop and support cloud-based applications
• Demonstrated experience designing, developing, and supporting transactional systems, including a strong understanding of transaction life cycles, data consistency, and reliable transaction processing
• Strong understanding of microservices architecture and how distributed components interact within complex systems
• Experience building reliable applications that handle complex business workflows, data dependencies, and interconnected services
• Experience developing, modernizing, or migrating legacy enterprise applications
• Strong analytical and problem-solving skills, with the ability to navigate complex systems and troubleshoot issues across multiple components

• Hands-on experience with Apache Kafka for event streaming and asynchronous communication
• Experience with Amazon SQS for message queuing and decoupled system integrations
• Experience with Amazon Event Bridge for event-driven architectures and event routing
• Direct experience migrating applications from TIBCO to Java and AWS
• Experience modernizing legacy transactional platforms into cloud-native microservices
• Experience supporting large-scale telecommunications, network operations, outage management, or other complex enterprise systems
• Experience with event-driven systems that aggregate multiple data points into a consistent, reliable view of business events and customer impact

• Willingness to speak up, ask questions, share ideas, and seek clarification rather than make assumptions
• Ability to work effectively with experienced engineers and contribute to technical discussions and design decisions
• Comfortable working in a fast-moving environment where priorities may shift due to outages or changing business needs
• Able to understand complex interactions between services, dependencies, data flows, and transactional processes…