Senior Software Engineer (Java / Spring Boot / Microservices / React)

Location: Annapolis, MD (Hybrid – 2–3 onsite days weekly)

Work Authorization: Must be eligible to work in the U.S.

About the Role: A confidential government technology organization is seeking Senior Software Engineers to support a large-scale modernization effort involving event-driven microservices, cloud-native infrastructure, and modern UI frameworks. Engineers will contribute to rewriting major enterprise applications using Spring Boot, Kubernetes, React, and RabbitMQ/Kafka. This position requires advanced technical expertise, strong problem-solving skills, hands-on microservices development experience, and the ability to collaborate in a structured Agile/DevOps environment.

Key Responsibilities: Architect, design, and implement enterprise-grade software solutions. Build scalable microservices using Spring Boot and associated Spring frameworks. Develop responsive UI components using React. Apply event-driven architecture (EDA) principles to create loosely coupled systems. Work with PrimeFaces 6.x+ for JSF-based enterprise applications. Implement messaging & event streaming using RabbitMQ (preferred) or Kafka. Build producers, consumers, routing logic, and integration components. Demonstrate understanding of architectural differences between message brokers. Deploy microservices to Kubernetes using CI/CD pipelines. Monitor, troubleshoot, and optimize performance across application layers. Write unit tests with 85%+ coverage. Participate in code reviews, debugging, system-level testing. Produce technical specifications, sequence diagrams, design artifacts. Provide weekly progress and status reports. Collaborate with product managers, designers, and engineering teams.

Required Qualifications: Bachelor’s degree in Computer Science or related field.8+ years strong Core Java development experience.4+ years hands-on Spring Boot development.4+ years experience building UI interfaces using React.4+ years message queue/event streaming integration using RabbitMQ (or Kafka).Experience with microservices, Docker/Kubernetes, CI/CD pipelines. Strong knowledge of Java fundamentals: concurrency, collections, JVM, REST APIs. Experience with Git, Agile/Scrum, DevOps tools.

Preferred Skills: Experience with Elasticsearch (search/indexing).Knowledge of AWS/Azure/GCP cloud environments. Strong understanding of software design patterns and architectural principles. Experience with monitoring tools: ELK, Prometheus, Grafana. Exposure to PrimeFaces for enterprise UI customization.

Work Arrangement: Hybrid schedule: 3 days onsite, 2 days remote (after initial 6?month onsite period).Must be able to report onsite within 24 hours if required. No remote work allowed outside the United States.