Mid level Java Backend Developer -w2

Mid level Java Backend Developer
-W2 only.

Location:

Hybrid/Onsite with onsite interviews. Need locals only.

Inperson interviews mandatory. First round in Irving (prime vendor) and second at Richardson (client)

Note:

We are looking for a strong hands‑on backend engineer with deep expertise in Java fundamentals, Spring, databases, messaging, and CI/CD—not someone whose experience is primarily focused on architecture or system design.

Primary Technology Stack

• Java
• Spring Boot
• Microservices
• REST APIs
• Git & CI/CD

The expectation is that the selected candidate is comfortable developing enterprise-scale backend applications and understands modern cloud-native development practices.

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, Completable Future, 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 Dev Ops tools, including Git, Maven/Gradle, Jenkins or Git Hub Actions, Docker, Kubernetes, and Sonar Qube.
• 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.