Senior Java Consultant

GBIT (Global Bridge InfoTech Inc); Richardson (TX); On-site; USD 120,000 - 150,000; Full time

Job summary

GBIT (Global Bridge InfoTech Inc) is seeking a Java Backend Developer to build scalable, enterprise-grade backend applications using Core Java, Spring Boot, and microservices.

You will design REST APIs, integrate messaging, and optimize database interactions in an Agile environment.

Qualifications

• Strong expertise in Core Java 8/11/17 with collections, streams, generics, JVM and design patterns.
• Solid experience with Java Concurrency & Multithreading (Threads, Executors, CompletableFuture).
• Experience with Spring Boot, Spring MVC, Spring Data JPA, Spring Security, Spring Cloud, REST APIs.
• Experience designing Microservices, RESTful APIs, distributed systems and event-driven architectures.
• Strong SQL experience with PostgreSQL, Oracle, MySQL, or SQL Server; knowledge of query optimization.
• Hands-on messaging with Kafka, RabbitMQ, ActiveMQ or JMS.
• Experience with CI/CD tools (Git, Maven/Gradle, Jenkins/GitHub Actions), Docker, Kubernetes, SonarQube.
• JUnit and Mockito for testing; integration and API testing.
• Cloud exposure (AWS or Azure) preferred; production support in Agile environments.
• Strong debugging and problem-solving skills in production environments.

Responsibilities

• Design, develop, and maintain scalable backend applications and microservices using Java and Spring Boot.
• Build and enhance backend features, improve performance, and ensure reliability.
• Develop REST APIs, messaging solutions, and database components.
• Implement asynchronous and concurrent processing via Java concurrency frameworks.
• Write clean, testable code following best practices and participate in code reviews.
• Troubleshoot production issues and contribute to CI/CD pipeline improvements.
• Collaborate with cross-functional Agile teams to deliver high-quality software.

Skills

Core Java (Java 8/11/17)

Java Concurrency & Multithreading

Spring Ecosystem

Microservices

SQL Databases

Messaging (Kafka/RabbitMQ/ActiveMQ/JMS

CI/CD & DevOps

JUnit & Mockito

Cloud Platforms (AWS/Azure)

Agile / Production Support

Tools

Git

Maven/Gradle

Jenkins / GitHub Actions

Docker

Kubernetes

SonarQube

Job description

We are seeking a Java Backend Developer with Strong hands-on experience building scalable, enterprise-grade backend applications. This is a coding-intensive role requiring strong expertise in Core Java, Spring Boot, Microservices, SQL, Messaging, and CI/CD. The ideal candidate should have proven experience developing backend features, troubleshooting production issues, and delivering high-quality software in an Agile environment.

Required Skills

• Strong expertise in Core Java (Java 8/11/17), including Collections, Streams, Generics, Exception Handling, JVM, Memory Management, and Design Patterns.
• Solid experience with Java Concurrency & Multithreading, including Threads, Runnable, Callable, Executor Framework, CompletableFuture, Synchronization, Locks, Concurrent Collections, Thread Pools, Atomic Classes, and Parallel Streams.
• Strong hands-on experience with the Spring Ecosystem: Spring Boot, Spring MVC, Spring Data JPA, Spring Security, Spring Cloud, Dependency Injection, Spring Actuator, and REST API development.
• Experience designing and developing Microservices, RESTful APIs, distributed systems, and event-driven architectures.
• Strong SQL and database experience with PostgreSQL, Oracle, MySQL, or SQL Server, including query optimization, indexing, and transaction management.
• Hands-on experience with messaging technologies such as Apache Kafka, RabbitMQ, ActiveMQ, or JMS.
• Experience with CI/CD and DevOps tools, including Git, Maven/Gradle, Jenkins or GitHub Actions, Docker, Kubernetes, and SonarQube.
• Experience with JUnit, Mockito, integration testing, and API testing.
• Exposure to cloud platforms such as AWS or Azure is preferred.
• Strong debugging, problem-solving, and production support experience in Agile environments.

Responsibilities

• Design, develop, and maintain scalable backend applications and microservices using Java and Spring Boot.
• Build new backend features, enhance existing functionality, and optimize application performance.
• Develop and integrate REST APIs, messaging solutions, and database components.
• Implement asynchronous and concurrent processing using Java concurrency frameworks.
• Write clean, maintainable, and testable code following best practices.
• Participate in code reviews, troubleshooting, production support, and CI/CD pipeline improvements.
• Collaborate with cross-functional Agile teams to deliver high-quality software.