Java Developer

i4DM•Millersville, MD

15h•Remote

About The Position

We are seeking a skilled and motivated Mid-Level Java Developer to join our cloud-native engineering team in a fully remote capacity. The ideal candidate will possess a minimum of 3+ years of hands-on professional experience developing and supporting Java-based applications in enterprise environments. In this role, you will design, develop, and maintain modern Spring Boot microservices and RESTful APIs that support mission-critical applications for federal agencies. You will contribute to building scalable, secure, and reliable solutions deployed within containerized and cloud-native environments. As part of a collaborative Agile team, you will work closely with senior engineers, architects, and cross-functional stakeholders to deliver high-quality software solutions. Responsibilities include writing clean, maintainable, and well-tested code, participating in technical design discussions, troubleshooting complex issues, and contributing to continuous improvement initiatives. This position offers an excellent opportunity for a developer with a strong foundation in Java and Spring Boot to further expand their expertise in Kubernetes, distributed systems, cloud-native architectures, and modern DevOps practices within a culture that emphasizes mentorship, technical excellence, and professional growth.

Requirements

Bachelor’s degree in computer science, Engineering, Information Technology, or a related technical field, or equivalent practical experience.
Minimum of 3–5 years of professional experience in Java application development, including backend services and API development.
Proficiency with modern Spring Boot, including Spring Web, Spring Data JPA, Spring Security, and the broader Spring ecosystem.
Working knowledge of Java 17+ features and willingness to adopt modern Java 21+ capabilities such as records, pattern matching, virtual threads, and sealed classes.
Strong experience designing and developing RESTful APIs, including versioning, error handling, idempotency, and HTTP best practices.
Experience utilizing API testing and validation tools such as Postman, including creating and maintaining collections, managing environments, and developing automated test scripts.
Solid experience with PostgreSQL or comparable relational databases, including schema design, indexing, and performance optimization.
Hands-on experience with Docker for building, running, and troubleshooting containerized applications.
Exposure to Kubernetes concepts such as Deployments, Services, ConfigMaps, and Secrets, with experience deploying applications to clusters.
Experience writing unit and integration tests using JUnit and Mockito, with a strong commitment to code quality and automated testing practices.
Solid understanding of object-oriented programming principles, design patterns, and clean-code methodologies.
Proficiency with Git and modern source control workflows using platforms such as GitHub, GitLab, or Bitbucket.
Familiarity with CI/CD pipelines and DevOps practices using tools such as Jenkins, GitLab CI, or GitHub Actions.
Experience using build and dependency management tools such as Maven or Gradle.
Experience working within Agile development environments using Scrum or Kanban methodologies and tools such as Jira.
Strong written and verbal communication skills with the ability to collaborate effectively across technical and non-technical teams.
Ability to obtain and maintain a U.S. Government Public Trust clearance.
Ability to work effectively in a fully remote, collaborative team environment.

Nice To Haves

Experience with Kubernetes-native deployment and development tools such as Skaffold, Kustomize, or Helm.
Experience with Redis for caching, distributed locking, rate limiting, or pub/sub implementations.
Familiarity with asynchronous messaging technologies such as Apache Kafka or RabbitMQ.
Understanding of microservices architecture patterns including service discovery, circuit breakers, and API gateways.
Experience with API management platforms such as Kong, Apigee, or AWS API Gateway for proxies, rate limiting, and access control.
Experience working with containerized and cloud-native application environments.
Experience with observability and monitoring tools such as Prometheus, Grafana, Elasticsearch/Kibana, or Splunk.
Demonstrated experience developing enterprise applications using Java and Spring Boot frameworks.
Exposure to cloud platforms, particularly AWS services such as ECS, EKS, RDS, S3, and Lambda.
Basic front-end development experience using HTML5, CSS, and JavaScript.
Healthcare or federal domain experience, including familiarity with FHIR data exchange standards.
Experience with additional programming languages such as Python, JavaScript/TypeScript, or Go.
Military-experienced candidates are encouraged to apply.

Responsibilities

Design, develop, and maintain scalable RESTful APIs and backend microservices using Java 21+ and modern Spring Boot frameworks.
Develop, optimize, and maintain PostgreSQL database schemas, queries, and migration scripts to ensure high performance and reliability.
Implement caching, session management, and lightweight messaging solutions using Redis.
Containerize applications using Docker and deploy services to Kubernetes environments, leveraging tools such as Skaffold for streamlined local development workflows.
Develop and maintain comprehensive unit and integration tests using JUnit and Mockito to ensure code quality and application stability.
Create, maintain, and validate API documentation and test suites using Postman and OpenAPI/Swagger specifications.
Contribute to CI/CD automation pipelines using tools such as Jenkins, GitLab CI, or GitHub Actions to support efficient build, testing, and deployment processes.
Participate actively in Agile Scrum ceremonies, including backlog refinement, sprint planning, story estimation, sprint reviews, and retrospectives.
Collaborate with senior engineers, product managers, architects, and cross-functional stakeholders to translate business and technical requirements into scalable solutions.
Participate in peer code reviews by providing and incorporating constructive feedback to maintain coding standards and engineering best practices.
Troubleshoot application issues, identify performance bottlenecks, and implement improvements to enhance system reliability, observability, scalability, and maintainability.
Apply secure software development practices, including authentication and authorization standards such as OAuth2 and JWT, while adhering to federal data security requirements.
Maintain accurate and up-to-date technical documentation for APIs, services, system components, and development processes.