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# Java Developer

- **Company:** Staffxpert Llc
- **Location:** New York, NY, United States
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Java (Programming Language), Application Programming Interfaces (APIs), Amazon Web Services, Application Performance Management, Unit Testing, Microsoft Azure, Cloud Engineering, Databases, Continuous Integration, Software Debugging, Software Design Patterns, DevOps, Distributed Systems, Elasticsearch, Gradle, Junit, PostgreSQL, Apache Maven, Enterprise Messaging Systems, Microsoft SQL Server, NoSQL, Object-Oriented Software Development, Oracle (Applications), Performance Tuning, Redis, SQL Databases, Software Technical Review, Multithreading, Enterprise Software Applications, Concurrency, Spring-boot, Caching, Backend, Git, Kubernetes, Production Code, Apache Kafka, Api Design, Software Coding, Restful APIs, Docker, Microservices
- **Published:** November 8, 2026
- **Apply:** https://www.careerjet.com/jobad/us6a8f85a589c829a9fabd541267ed0d49

## About the Role

STAFFXPERT is seeking a highly experienced Senior Java Backend Developer with strong hands-on coding expertise. This is a core backend engineering role requiring deep experience in Java, Spring Boot, Microservices, and API development. The ideal candidate is a strong individual contributor who spends the majority of their time designing, developing, and optimizing enterprise applications.
Mandatory Requirements

 * 13 to 15 years of hands-on Java backend development experience.
 * Strong coding and problem-solving skills.
 * Extensive experience with Java, Spring Boot, and Microservices architecture.
 * Strong expertise in RESTful API design and development.
 * Experience building scalable, high-performance enterprise applications.
 * Strong understanding of object-oriented design principles and design patterns.
 * Experience with multithreading, collections, concurrency, and performance optimization.
 * Strong database experience with SQL and data modeling.
 * Experience with cloud-native and distributed systems environments.
 * Familiarity with CI/CD pipelines, Git, Maven/Gradle, and DevOps practices., * Strong hands-on developer, not primarily a manager.
 * Excellent coding and debugging abilities.
 * Able to work independently in a fast-paced enterprise environment.
 * Strong communication and collaboration skills.

Priority: Please submit only the top 2-3 strongest candidates who are highly hands-on with Java backend development and can confidently clear a live coding interview.

## Description

Technical Skills
Required:

 * Java 8/11/17+
 * Spring Boot
 * Microservices Architecture
 * REST APIs
 * Kafka or Messaging Technologies
 * SQL Databases (Oracle, PostgreSQL, SQL Server)
 * Git
 * Maven/Gradle
 * Docker/Kubernetes
 * JUnit and Unit Testing

Preferred:

 * AWS, Azure, or GCP
 * Redis/Caching Technologies
 * ElasticSearch
 * NoSQL Databases
 * Payment or Financial Services Domain Experience

Interview Process

 * In-person coding interview required.
 * Candidate must bring their own laptop for live coding assessment.
 * Interview availability preferred between 12:00 PM and 3:00 PM on Tuesday, Wednesday, or Thursday., * Design and develop backend services using Java and Spring Boot.
 * Build and maintain scalable microservices and APIs.
 * Write clean, efficient, production-quality code.
 * Participate in architecture discussions and technical design reviews.
 * Troubleshoot and resolve complex production issues.
 * Optimize application performance, scalability, and reliability.
 * Collaborate with architects, DevOps engineers, and product teams.