Java Backend Developer

Job Title: Senior Java Backend Developer

Location: St.louis,MO

Type: Contract

Job Description:

We are seeking a highly skilled Senior Java Backend Developer to design, develop, and maintain scalable backend systems. You will play a key role in developing enterprise-grade applications with high performance, security, and reliability. Strong expertise in Java, Spring Boot, and experience with cloud platforms, REST APIs, and database systems is essential.

Responsibilities:

Design and implement robust, secure, and scalable backend services using Java and Spring Boot

Develop RESTful APIs and integrate with front-end and third-party systems

Optimize application performance, scalability, and reliability

Collaborate with cross-functional teams including DevOps, QA, and front-end developers

Participate in code reviews and mentor junior developers

Troubleshoot and resolve production issues Requirements:

10+ years of experience in backend development using Java

Strong proficiency in Spring Framework (Spring Boot, Spring Data, etc.)

Experience with REST APIs, microservices architecture, and asynchronous processing

Strong knowledge of SQL and experience with databases like MySQL, PostgreSQL, or Oracle

Familiarity with CI/CD pipelines, version control (Git), and containerization (Docker, Kubernetes)

Good understanding of security, scalability, and performance tuning Preferred Skills:

Experience with NoSQL databases like MongoDB or Redis

Exposure to cloud platforms such as AWS, Azure, or GCP

Knowledge of messaging systems (Kafka, RabbitMQ)

Familiarity with testing frameworks like JUnit, Mockito