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Java Developer

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Onsite

Java Developer

Signature IT World Inc

Java Developer

Skills

SQL QueriesMongoDBDockerJavaMicroservicesSpring BootAmazon EC2KafkaAIAWSKubernetesOracle

7 days ago

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Important information


Contract type:

Freelance / Contract

Location:

California, MD, USA

Work mode:

Onsite

Published on:

12 October 2026

What they need


Job Summary

We are looking for an experienced Technology Lead / Architect with strong expertise in Java, J2EE, Microservices, and Reactive Programming, particularly Spring WebFlux. The ideal candidate will have hands-on experience designing scalable, high-performance, and resilient distributed systems, along with exposure to AI Agentic technologies and cloud-native application development on AWS.

The candidate will be responsible for leading technical architecture, designing enterprise-grade solutions, and driving the development of secure, scalable, and reliable microservices applications.

Key Responsibilities

  • Design and develop scalable enterprise applications using Java, J2EE, Spring Boot, and Microservices architecture.
  • Implement reactive and non-blocking applications using Spring WebFlux and Reactive Programming .
  • Design and develop RESTful APIs and distributed services.
  • Integrate AI Agentic capabilities into enterprise applications and workflows.
  • Implement fault tolerance, circuit breakers, retries, and resilience patterns using Resilience4j.
  • Develop event-driven architectures and asynchronous processing solutions using Apache Kafka.
  • Design and optimize database solutions using SQL, Oracle, and NoSQL databases, particularly MongoDB.
  • Write unit and integration tests using JUnit and follow best practices for code quality.
  • Containerize applications using Docker and deploy them using Kubernetes and AWS container services.
  • Work with AWS services, including ECS, EKS, EC2, and S3.
  • Lead technical design discussions, conduct code reviews, and establish architecture and development standards.
  • Collaborate with cross-functional teams to deliver reliable, secure, and high-performing applications.
  • Troubleshoot complex production issues and drive performance optimization and continuous improvement.

Required Technical Skills

  • Programming: Java, J2EE
  • Microservices: Microservices architecture, REST APIs
  • Reactive Programming: Spring WebFlux, Reactive Programming
  • AI: AI Agentic / Agentic AI integration
  • Resilience & Messaging: Resilience4j, Apache Kafka
  • Databases: SQL, Oracle, NoSQL, MongoDB
  • Testing: JUnit
  • Containers & Orchestration: Docker, Kubernetes
  • AWS Cloud: ECS, EKS, EC2, S3
  • Architecture: Distributed systems, scalable application design, cloud-native architecture

Preferred Candidate Profile

  • Strong hands-on experience in Java-based microservices development.
  • In-depth knowledge of reactive and non-blocking application development using Spring WebFlux.
  • Practical experience integrating AI agents or agentic workflows into enterprise applications.
  • Experience designing resilient, event-driven, and cloud-native applications.
  • Strong technical leadership, problem-solving, communication, and architectural design skills.

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