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Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Senior Java Developer - **Company:** AMARINA SEARCH PARTNERS LLC - **Location:** Greenwich, CT, United States - **Experience:** Expert - **Salary:** $135,200.0 - $187,200.0 - **Contract:** Temporary to permanent - **Skills:** Clean Code Principles, Java (Programming Language), Application Programming Interfaces (APIs), Agile Methodology, Amazon Web Services, Code Review, Distributed Systems, Junit, Object-Oriented Software Development, Software Architecture, Regression Testing, Salesforce.Com, Systems Architecture, WebSocket, WebRTC, Enterprise Software Applications, Real Time Systems, Software Application Programming, Vert.x, Backend, Git, Integration Tests, Information Technology, Restful APIs, Software Version Control - **Published:** August 7, 2026 - **Apply:** https://www.careerjet.com/job/us6c7381407e498af0c2d7fa269da342be/eaa ## About the Role Bachelor's or Master's degree in Computer Science or a related field. Proven experience developing enterprise applications using Java and Spring. Experience with Vert.x. Strong experience designing and implementing RESTful APIs. Experience with Git for source code management. Experience writing unit and integration tests using JUnit or similar testing frameworks. Experience developing applications utilizing WebSockets or other real-time communication technologies. Strong understanding of object-oriented design, software architecture, and development best practices. Excellent analytical, troubleshooting, and problem-solving skills. Strong verbal and written communication skills with the ability to collaborate across technical teams. Ability to work independently while contributing effectively within a team environment. Passion for continuous learning and adopting new technologies. Preferred Qualifications Experience with cloud platforms such as AWS. Experience working within Agile software development environments. ## Description Our client, a global financial technology organization headquartered in Greenwich, Connecticut, is seeking a Senior Java Developer to join its engineering team. In this role, you will design, develop, and maintain high-performance APIs and backend services that power mission-critical, real-time applications used by internal platforms, customer-facing products, and external integrations. This is an excellent opportunity to contribute to a highly scalable platform while working on complex distributed systems in a collaborative, fast-paced environment. Responsibilities Design, develop, and maintain scalable Java-based backend applications and APIs. Collaborate with business stakeholders and cross-functional engineering teams to deliver new features and system enhancements. Develop and maintain RESTful web services and backend integrations. Build high-quality, maintainable, and well-tested code through unit and regression testing. Develop backend services that expose and integrate internal systems. Troubleshoot production issues and provide third-level application support. Contribute to system architecture, code reviews, and continuous improvement initiatives. Produce clear technical documentation for new functionality and enhancements., Job Title: Senior Salesforce Engineer Location: Greenwich, CT - Hybrid- 2 days onsite Terms- 6- 12 Months contract Pay rate: $65/hr- $90/hr W2 ONLY Our client which is a pione… + 4 hours ago + ## Related Videos - [Test-Driven Development: It's easier than you think!](https://www.wearedevelopers.com/videos/1598-test-driven-development-it-s-easier-than-you-think) - [Is reactive the new black? 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