Mid-Level Java Full-Stack/API Developer – Federal Civilian Programs

This is a fully remote position, open to applicants in United States.

📋 Description

• Design, develop, test, and maintain enterprise applications, microservices, and backend services utilizing Java and Spring Boot.

• Create data-access components using Spring Data, JPA/Hibernate, and JDBC.

• Develop both synchronous and asynchronous integrations between enterprise applications.

• Design and implement secure RESTful APIs adopting an API-first approach with OpenAPI.

• Implement API standards for versioning, error handling, authentication, authorization, pagination, and observability.

• Participate in reviews for API design and governance.

• Create event-driven integrations with JMS and Apache Kafka, including producers, consumers, listeners, topics, queues, and event-processing components.

• Establish resilient messaging strategies with acknowledgment, retry, timeout, error-handling, and dead-letter queue/topic approaches.

• Work with Kafka topics, partitions, consumer groups, offsets, serialization, and schema management.

• Design and optimize relational database components, schemas, indexes, stored procedures, transactions, and SQL queries.

• Version database schema changes using Flyway or Liquibase.

• Develop automated unit, integration, API, database, messaging, and regression tests.

• Utilize automated and AI-assisted methods to generate test cases, test data, and test scenarios.

• Package applications using Docker and deploy, operate, and troubleshoot them on Kubernetes.

• Build and maintain CI/CD pipelines that integrate builds, tests, migrations, security scanning, container builds, and Kubernetes deployments.

• Create and sustain API/developer portals featuring interactive OpenAPI documentation, API catalogs, guides, examples, and onboarding workflows.

• Develop responsive, accessible web applications and portal interfaces using React and/or Angular with JavaScript/TypeScript, HTML, and CSS.

• Troubleshoot issues related to applications, integrations, databases, messaging, and performance.

• Engage in peer code reviews and continuous improvement efforts.

• Collaborate with DevOps, platform engineering, UX, API, and backend teams.

⛳️ Requirements

• U.S. citizenship is required.

• For CBP positions: must be able to obtain and maintain a CBP Public Trust background investigation.

• For Department of State positions: must hold an active Secret clearance.

• Approximately three to six (3–6) years of professional software development experience.

• Strong experience in Java programming and hands-on familiarity with Spring Boot and the Spring ecosystem.

• Proven experience in designing and developing REST APIs and microservices, with solid knowledge of OpenAPI/Swagger and API-first development.

• Experience with enterprise messaging technologies, including JMS and Apache Kafka.

• Strong SQL skills and relational database development experience with PostgreSQL, Oracle, MySQL, or similar databases.

• Familiarity with JPA/Hibernate, Spring Data, and/or JDBC.

• Experience in writing automated unit, integration, API, database, and messaging tests using tools such as JUnit, Mockito, and REST Assured.

• Proficiency with Docker and containerized application development, along with a working knowledge of Kubernetes.

• Experience with automated CI/CD pipelines, Git, and contemporary source-control workflows.

• Experience in developing web applications using React and/or Angular, with working knowledge of JavaScript and/or TypeScript.

• Understanding of security principles related to applications, APIs, messaging, and databases.

• Strong debugging, troubleshooting, and problem-solving capabilities.

• Able to work remotely during East Coast hours and travel approximately once per quarter.

• Desired: Experience with Spring Kafka and Spring JMS.

• Desired: Experience with Kafka consumer groups, partitioning, schema management, retries, and dead-letter topics.

• Desired: Experience with JMS-compatible messaging platforms like IBM MQ, ActiveMQ, or Artemis.

• Desired: Experience with automated or AI-assisted test-case generation and tools like Arazzo or similar API testing tools.

• Desired: Experience with Flyway or Liquibase.

• Desired: Experience with API/developer portals such as Scalar, Redocly, Swagger UI, or Backstage.

• Desired: Experience with cloud services like AWS, Azure, or Google Cloud.

• Desired: Experience deploying Spring Boot applications on Kubernetes, with familiarity with Helm.

• Desired: Understanding of OAuth 2.0, OpenID Connect, JWT, and API authentication and authorization.

• Desired: Familiarity with API gateways, API management platforms, observability, DevSecOps, and automated security scanning.

🏝️ Benefits

• Remote work during East Coast hours.

• Travel approximately once per quarter.

• Immediate start available.

• Opportunity to engage in mission-critical, cloud-native federal civilian programs.

• Work within AWS, Azure, and Google Cloud environments.

• Exposure to modern DevOps, API, messaging, and cloud technologies.