Java Developer

Job Title: Java Developer

Job Location: Philadelphia, PA

Job Type: Contract

Job Overview:

Pay Range: $55hr - $60hr

Requirement/Must Have:

• Strong hands-on experience in Core Java development.
• Expertise in multithreading, concurrency, collections, JVM internals, and performance optimization.
• Strong experience with Spring Boot and Microservices architecture.
• Experience building event-driven systems using Apache Kafka.
• Strong understanding of RESTful APIs, API security, and integration patterns.
• Experience with SQL Server and/or Oracle databases.
• Strong understanding of cloud-native architecture and distributed systems.
• Experience with CI/CD pipelines such as Jenkins or GitHub Actions.
• Proficiency with Git and modern development workflows.
• Working experience with React.js and modern JavaScript frameworks.
• Strong analytical, troubleshooting, and problem-solving skills.
• Excellent communication and collaboration abilities.

Experience:

• Experience designing and developing scalable microservices using Java and Spring Boot.
• Experience implementing Kafka producers, consumers, partitions, and offset management.
• Experience building scalable, resilient, and fault-tolerant cloud-native applications.
• Experience integrating frontend applications with backend APIs.
• Experience troubleshooting production issues and improving system performance.
• Experience with automated build, testing, and deployment pipelines.
• Experience working in Agile development environments.
• Experience with enterprise integration platforms and distributed systems.

Responsibilities:

• Design, develop, and maintain scalable microservices using Java and Spring Boot.
• Build and optimize event-driven architectures using Apache Kafka.
• Develop cloud-native applications with scalability, resiliency, and observability best practices.
• Apply advanced Core Java concepts including multithreading, concurrency, and memory management.
• Design and optimize database schemas, SQL queries, and data processing workflows.
• Develop and integrate RESTful APIs and backend services.
• Collaborate with frontend teams and contribute to React.js-based applications.
• Implement and maintain CI/CD pipelines for automated deployments.
• Participate in code reviews, design discussions, and testing activities.
• Troubleshoot production issues and improve system reliability and performance.
• Work closely with product, architecture, and DevOps teams to deliver technical solutions aligned with business goals.

Should Have:

• Experience with client onboarding, KYC, AML, or enterprise integration platforms.
• Exposure to Docker, Kubernetes, and containerized deployments.
• Experience with cloud platforms such as OpenShift Container Platform (OCP).
• Knowledge of observability tools including logging, monitoring, and tracing solutions.
• Understanding of security best practices for distributed systems.

Skills:

• Core Java.
• Spring Boot.
• Microservices.
• Apache Kafka.
• Multithreading.
• Concurrency.
• JVM Internals.
• Performance Optimization.
• REST APIs.
• API Security.
• SQL Server.
• Oracle.
• Cloud-Native Architecture.
• CI/CD Pipelines.
• Jenkins.
• GitHub Actions.
• Git.
• React.js.
• JavaScript ES6+.
• HTML.
• CSS.
• Distributed Systems.
• Docker.
• Kubernetes.
• OpenShift.
• Observability and Monitoring.
• Troubleshooting and Debugging.

Qualification and Education:

• Bachelor s degree in Computer Science, Information Technology, Engineering, or a related field.
• Relevant certifications in Java, Cloud, or Microservices technologies are a plus.