Java Developer – 4–8 Years || USC/GC/H4EAD

Job Summary We are seeking an experienced Java Developer with 4–8 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: 4–8 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

Bachelor's 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 4–8 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.