Java Developer – 4–8 Years || USCGCH4EAD

Job Summary

We are seeking an experienced Java Developer with 48 years of professional experience to design develop test deploy and maintain scalable enterprise applications and distributed systems. The ideal candidate will have strong hands-on expertise in modern Java Spring Boot REST APIs microservices cloud platforms event-driven architecture containers and CI/CD along with a solid understanding of application security observability and system design.

Exposure to AI/LLM integration and AI-enabled application development using modern Java frameworks is highly desirable.

The candidate must be flexible regarding location and willing to relocate anywhere in the United States for the right opportunity.

Experience: 48 Years
Employment Type: W2 Only
Work Authorization: U.S. Citizen / Green Card / H4 EAD Only
Location: Open to opportunities across the United States
Relocation: Must be willing to relocate anywhere in the U.S. for a suitable opportunity

Cloud & Modern Development

Experience with one or more of the following:

• AWS Microsoft Azure or Google Cloud Platform (GCP)

• Cloud-native application development and deployment

• Docker and containerized application development

• Kubernetes and container orchestration

• Helm for Kubernetes application deployment

• CI/CD using Jenkins GitHub Actions GitLab CI/CD Azure DevOps or equivalent

• Apache Kafka or other event-streaming/messaging technologies

• Redis or other distributed caching technologies

• NoSQL databases such as MongoDB DynamoDB or Cassandra

• Infrastructure as Code using Terraform or equivalent tools

Security & API Development

• Experience with Spring Security

• Understanding of OAuth 2.0 OpenID Connect and JWT

• Experience securing REST APIs and microservices

• Knowledge of API Gateway patterns and rate limiting

• Understanding of authentication authorization secrets management and secure coding practices

• Familiarity with API documentation using OpenAPI/Swagger

Event-Driven & Distributed Systems

• Hands-on experience with Apache Kafka including producers consumers topics partitions consumer groups and event-driven architecture

• Understanding of asynchronous processing and messaging patterns

• Experience designing resilient and scalable distributed services

• Knowledge of fault tolerance retries circuit breakers timeouts and idempotency

• Exposure to Spring Cloud Resilience4j or equivalent technologies

Observability & Performance

• Experience with application and infrastructure monitoring

• Familiarity with Prometheus Grafana OpenTelemetry Splunk ELK/OpenSearch or equivalent observability platforms

• Understanding of metrics logs distributed tracing and application health monitoring

• Experience troubleshooting production issues and analyzing application performance

• Understanding of JVM monitoring garbage collection memory management and performance tuning is a plus

AI & Modern Application Development

• Exposure to Generative AI LLMs or AI-enabled enterprise applications

• Experience with Spring AI LangChain4j or similar Java-based AI integration frameworks is a plus

• Understanding of integrating LLM APIs embeddings vector databases RAG or AI-powered APIs is desirable

• Experience building applications that consume AI/ML services through REST APIs or cloud AI platforms is a plus

Front-End Exposure

• Working knowledge of modern front-end technologies such as React Angular TypeScript HTML and CSS is a plus

• Understanding of integrating Java/Spring Boot backend services with modern web applications
  

Preferred Qualifications

• Experience with Spring Cloud and cloud-native development

• Experience with Kafka/event-driven architecture

• Experience with Kubernetes Helm and Docker

• Experience implementing CI/CD and DevSecOps practices

• Experience with Terraform and Infrastructure as Code

• Understanding of 12-factor application principles

• Experience with API design versioning documentation and lifecycle management

• Strong understanding of system design scalability availability reliability and performance

• Experience working in production environments supporting highly available applications

• Bachelors degree in Computer Science Information Technology Engineering or a related field is preferred
  

Key Responsibilities

• Design develop test and maintain scalable Java-based enterprise applications

• Build and maintain Spring Boot microservices and REST APIs

• Develop cloud-native and distributed applications

• Design and implement event-driven solutions using Kafka

• Integrate applications with relational and NoSQL databases

• Develop secure APIs using Spring Security OAuth2/OIDC and JWT

• Write high-quality unit integration and automated tests

• Participate in code reviews and maintain coding standards

• Develop and maintain CI/CD pipelines

• Containerize applications using Docker and deploy them using Kubernetes

• Monitor troubleshoot and optimize applications in development and production environments

• Collaborate with architects DevOps engineers QA engineers product teams and other developers

• Participate in Agile ceremonies and contribute to technical design and architecture discussions

• Evaluate and adopt modern technologies that improve application scalability reliability security and developer productivity

• Contribute to AI-enabled application initiatives where applicable
  

Core Technology Stack

Java 17/21 Spring Boot Spring Security REST APIs Microservices Kafka SQL MongoDB Redis Docker Kubernetes Helm AWS/Azure/GCP Terraform CI/CD JUnit 5 Mockito Git OpenTelemetry Prometheus Grafana OAuth2/OIDC JWT Spring AI LangChain4j

Required Skills

• 48 years of professional experience in Java development

• Strong hands-on experience with Java 17/21 with exposure to newer Java LTS versions a plus

• Strong knowledge of Core Java OOP Collections Generics Streams Multithreading Concurrency Exception Handling and JVM fundamentals

• Strong experience with Spring Framework and Spring Boot

• Hands-on experience developing RESTful APIs and Microservices

• Strong understanding of microservices architecture distributed systems and service-to-service communication

• Strong experience with SQL and relational databases such as PostgreSQL MySQL Oracle or SQL Server

• Experience with Git and Git-based development workflows

• Experience writing unit integration and API tests using JUnit 5 Mockito Spring Boot Test or equivalent frameworks

• Experience with Maven or Gradle

• Strong understanding of Agile/Scrum development methodologies

• Strong debugging troubleshooting performance optimization and problem-solving skills.

Candidate Requirements

• Must be authorized to work in the U.S. as a U.S. Citizen Green Card holder or H4 EAD holder.

• Must be willing to work on W2.

• Must be willing to relocate anywhere in the United States for a suitable opportunity.

• Must have 4-8 years of hands-on professional Java development experience.

• Strong communication and collaboration skills required.