Sr. Java Backend Developer

Location: Pittsburgh, PA(Hybrid)

Duration: Long-term Contract

Employment Type: W2 / 1099 / C2C

Experience: 10+ Years

Domain: Preferred exp. With Banking/Financial Domain

Job Description:

We are seeking a highly skilled Java Backend Developer to design, build, and maintain robust, secure, and scalable RESTful APIs and microservices. The ideal candidate will have strong expertise in modern Java technologies, backend architecture, and cloud-native development.

 Required Skills:

• Strong proficiency in Java (modern versions)
• Expertise in:
• Spring Framework
• Spring Boot
• Spring MVC
• Spring Security
• Hibernate / JPA
• Solid understanding of:
• Microservices architecture
• Monolithic architecture
• Design patterns
• Strong experience with SQL and NoSQL databases
• Ability to write and optimize complex queries
• Experience with Cloud & DevOps:
• Docker
• Kubernetes
• Cloud platforms (AWS / Azure / Google Cloud Platform)

Key Responsibilities

• Design, develop, and maintain RESTful APIs and microservices.
• Ensure high performance, scalability, and security of backend services.

Server-Side Development

• Translate business requirements into functional, reusable, and testable Java code.
• Implement clean, maintainable, and efficient backend logic.

Database Management

• Work with relational databases such as MySQL and PostgreSQL.
• Integrate NoSQL databases like MongoDB.
• Optimize queries and ensure efficient data storage and retrieval.

Performance Optimization

• Identify system bottlenecks and improve application performance.
• Optimize backend systems for scalability and responsiveness.

Testing & Debugging

• Develop and maintain unit and integration tests (e.g., JUnit).
• Participate in code reviews and ensure high-quality deliverables.

Collaboration

• Work closely with frontend developers, DevOps teams, and product managers.
• Contribute to end-to-end delivery of applications.