Java Developer

Job Title: Java Developer (Messaging \& Integration Specialist)

Location:

Texas

Employment Type:

Full-Time

Experience Level:

Mid-Senior (Overall 10\+ yrs. of Exp.)

About the Role

We are seeking a skilled

Java Developer

with strong hands-on experience in message-oriented middleware to join our integration team in Texas. You will be responsible for designing and developing high-throughput, low-latency distributed systems using

RabbitMQ

or

TIBCO

(EMS/BusinessWorks). You will play a critical role in ensuring reliable asynchronous communication between microservices and legacy enterprise systems.

Key Responsibilities

• Design, develop, and deploy scalable Java applications with a focus on event-driven architectures.
• Implement messaging solutions using

RabbitMQ

(exchanges, queues, bindings, routing keys) or

TIBCO EMS/BW

(topics, queues, JMS).

• Build and maintain publish-subscribe and point-to-point messaging patterns for system integration.
• Optimize message throughput, handle message persistence, and manage dead-letter queues (DLQ).
• Troubleshoot messaging-related issues including connection drops, message duplication, and ordering guarantees.
• Collaborate with DevOps to containerize messaging-dependent services (Docker/Kubernetes).
• Write integration tests using test containers for RabbitMQ or TIBCO emulation.
• Ensure transactional integrity and idempotency across distributed message flows.
• Document message schemas, exchange topologies, and error-handling strategies.

Required Qualifications

• Education:

Bachelor’s degree in Computer Science, Engineering, or related field (or equivalent experience).

• Experience:

5\+ years of professional Java development (Java 8/11/17\+).

• Messaging (Must have one):
• RabbitMQ:

Deep understanding of AMQP 0-9-1, exchanges (direct, topic, fanout, headers), queue bindings, message TTL, priority queues, and shovel/federation plugins.

• OR TIBCO:

Experience with TIBCO EMS (JMS), TIBCO BusinessWorks 5\.x/6\.x, configuring destinations, bridges, and fault tolerance.

• Java Stack:

Strong knowledge of Spring Framework (Spring Boot, Spring AMQP for Rabbit, or Spring JMS for TIBCO), Hibernate/JPA.

• Concurrency:

Multithreading, ExecutorServices, and producer-consumer implementations.

• Data Formats:

JSON, Avro, or Protocol Buffers for message payloads.

• Database:

SQL (PostgreSQL/Oracle) and NoSQL (MongoDB/Cassandra) for message audit trails.

• Tools:

Maven/Gradle, Git, CI/CD pipelines (Jenkins/GitHub Actions), Linux command line.

Preferred Qualifications

• Experience migrating from TIBCO to RabbitMQ or vice versa.
• Knowledge of Kafka (as a secondary messaging system).
• Familiarity with cloud messaging services (AWS SQS/SNS, Azure Service Bus).
• Understanding of exactly-once semantics, idempotent consumers, and outbox patterns.
• Certification in TIBCO or RabbitMQ.
• Experience in Texas-based industries: energy, healthcare, fintech, or retail.

Soft Skills

• Strong debugging skills – ability to analyze thread dumps and message traces.
• Excellent communication for coordinating with cross-functional teams.
• Self-starter comfortable in a fast-paced, regulated environment.