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

Job Summary

We are seeking an experiencedJava 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 inmodern 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 toAI/LLM integration and AI-enabled application development using modern Java frameworks is highly desirable.

The candidate must be flexible regarding location and willing torelocate 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 asMongoDB, DynamoDB, or Cassandra

• Infrastructure as Code usingTerraform or equivalent tools

Security & API Development

• Experience withSpring Security

• Understanding ofOAuth 2.0, OpenID Connect, and JWT

• Experience securing REST APIs and microservices

• Knowledge ofAPI Gateway patterns and rate limiting

• Understanding of authentication, authorization, secrets management, and secure coding practices

• Familiarity with API documentation usingOpenAPI/Swagger

Event-Driven & Distributed Systems

• Hands-on experience withApache 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 toSpring Cloud, Resilience4j, or equivalent technologies

Observability & Performance

• Experience with application and infrastructure monitoring

• Familiarity withPrometheus, Grafana, OpenTelemetry, Splunk, ELK/OpenSearch, or equivalent observability platforms

• Understanding ofmetrics, 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 toGenerative AI, LLMs, or AI-enabled enterprise applications

• Experience withSpring AI, LangChain4j, or similar Java-based AI integration frameworks is a plus

• Understanding of integratingLLM 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 asReact, Angular, TypeScript, HTML, and CSS is a plus

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

Preferred Qualifications

• Experience withSpring Cloud and cloud-native development

• Experience withKafka/event-driven architecture

• Experience withKubernetes, Helm, and Docker

• Experience implementingCI/CD and DevSecOps practices

• Experience withTerraform and Infrastructure as Code

• Understanding of12-factor application principles

• Experience withAPI design, versioning, documentation, and lifecycle management

• Strong understanding ofsystem 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 maintainSpring Boot microservices and REST APIs

• Develop cloud-native and distributed applications

• Design and implement event-driven solutions usingKafka

• Integrate applications with relational and NoSQL databases

• Develop secure APIs usingSpring 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 inJava development

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

• Strong knowledge ofCore Java, OOP, Collections, Generics, Streams, Multithreading, Concurrency, Exception Handling, and JVM fundamentals

• Strong experience withSpring Framework and Spring Boot

• Hands-on experience developingRESTful APIs and Microservices

• Strong understanding ofmicroservices architecture, distributed systems, and service-to-service communication

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

• Experience withGit and Git-based development workflows

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

• Experience withMaven or Gradle

• Strong understanding ofAgile/Scrum development methodologies

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

Candidate Requirements

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

• Must be willing to work onW2.

• Must be willing torelocate 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.