Senior Java Backend Developer

This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a Senior Java Backend Developer based in the United States.

We are seeking an experienced Java Backend Developer to build, enhance, and maintain reliable enterprise software applications and backend services. In this remote contract role, you will contribute to the development of scalable APIs, microservices, integrations, and distributed systems. You will work with modern Java technologies and frameworks to deliver secure, high-performance solutions that meet complex business requirements. Collaborating with cross-functional teams, you will help translate technical specifications into robust, production-ready applications. Depending on the assignment, you may also contribute to architecture decisions, cloud adoption, system modernization, and production support. This opportunity is ideal for a hands-on developer who enjoys solving challenging engineering problems and delivering meaningful technical improvements in a collaborative environment.

Accountabilities

• Backend Application Development: Design, develop, test, and maintain enterprise-grade backend applications and services using Java and relevant frameworks.
• API Development and Integration: Build, enhance, and integrate RESTful APIs to support communication between applications, services, and external systems.
• Microservices and Distributed Systems: Develop and maintain scalable microservices and distributed applications, emphasizing reliability, performance, and maintainability.
• Database Management: Work with relational databases and SQL to design queries, manage data access, and support efficient data processing.
• Software Testing and Debugging: Write clean, maintainable, production-quality code; identify and resolve defects; and implement appropriate testing practices to ensure software quality.
• System Modernization: Contribute to the enhancement, refactoring, and modernization of existing enterprise applications and backend infrastructure.
• Cloud and Infrastructure Integration: Depending on project requirements, support application development and deployment in cloud environments such as AWS, Azure, or Google Cloud Platform.
• Production Support and Optimization: Investigate technical issues, troubleshoot application behavior, and improve system reliability, security, scalability, and performance.
• Collaboration and Delivery: Partner with product managers, architects, QA engineers, and other developers to translate functional and technical requirements into effective software solutions.
• Agile Development Practices: Participate in collaborative development workflows, code reviews, sprint planning, and continuous improvement initiatives.
• Additional Technical Contributions: Where applicable, support batch processing, event-driven architectures, messaging integrations, CI/CD pipelines, and operational activities.

Requirements:

• Java Development Experience: Demonstrated hands-on experience developing backend applications and enterprise software using Java.
• Spring Framework Expertise: Practical experience with Spring Boot or the broader Spring ecosystem, depending on project requirements.
• Backend and API Development: Proven ability to design, develop, integrate, and maintain RESTful APIs and backend services.
• Microservices and Distributed Systems: Understanding of microservices architecture, service-to-service communication, and the principles of building scalable distributed applications.
• Database and SQL Skills: Experience working with relational databases, writing SQL queries, and managing application data efficiently.
• Software Engineering Fundamentals: Strong programming, debugging, testing, and problem-solving skills, with a commitment to writing clean, reliable, maintainable code.
• Requirements Analysis: Ability to understand business objectives and technical specifications and translate them into practical software implementations.
• Cloud Platform Familiarity: Experience with AWS, Microsoft Azure, or Google Cloud Platform is an advantage.
• Messaging and Event-Driven Systems: Familiarity with Kafka, messaging platforms, or event-driven architecture is beneficial.
• DevOps and Delivery Practices: Exposure to CI/CD pipelines, DevOps workflows, production operations, Linux environments, or batch processing is preferred.
• Industry Experience: Experience in financial services, payments, h…