Top Entry Level Java Developer Jobs in Denver & Boulder, CO

Develop and maintain high-performance Java applications across web, mobile, and enterprise systems. Responsibilities include designing software, integrating front-end technologies, working with Spring and Hibernate, managing relational databases, writing tests, debugging issues, and contributing to Agile/Scrum development. The role also involves using build tools, Git, cloud and DevOps technologies, coding standards, design patterns, and continuous improvement practices.

Develop and maintain microservices and full-stack web applications using Java, C++, Python, and cloud technologies. Apply Agile, DevSecOps, CI/CD, GitLab, and automated testing practices. Support cloud development environments, unit and integration testing, technical leadership, mentoring, task direction, work-product reviews, customer collaboration, and training-material development. This is an on-site role supporting space and intelligence systems in Boulder, Colorado.

Develop Java-based microservices and full-stack web applications using Java, C++, Python, and cloud technologies. Apply Agile, DevSecOps, CI/CD, GitLab, unit testing, and integration testing practices. Support cloud development environment configuration, mentor junior engineers, provide technical direction, review work products, collaborate with customers and multidisciplinary teams, and maintain training materials.

Develop and maintain scalable Java backend systems using Spring Boot and microservices architecture. Collaborate with customer teams, review specifications, write clean code, participate in code reviews, document solutions, and troubleshoot and optimize backend performance, reliability, and security. The role also contributes technical expertise to training next-generation AI systems, though prior AI experience is not required.

Develop and maintain scalable backend applications and services using Java and Spring Boot. Build and consume RESTful APIs, manage builds and dependencies with Maven, and use Git for source control. Troubleshoot, optimize, and support backend applications in a collaborative Agile development environment. The role requires U.S. citizenship and eligibility to pass an extensive background investigation and clearance process before project start.

Leads and mentors application engineers while designing Java and Spring Boot microservices. Oversees application modernization, VM-to-container migration, GCP and GKE deployments, Kubernetes troubleshooting, CI/CD, testing, database integration, observability, and distributed systems. Coordinates technical dependencies across a large application portfolio and collaborates with platform, DevOps, security, and architecture teams. Uses AI-assisted engineering tools to accelerate development, modernization, testing, documentation, and automation.

Develop full-stack software using Java and related technologies to support national security missions. Responsibilities include translating user and analyst requirements into user-friendly systems, applying continuous integration practices, collaborating through design sessions and documentation, and adapting architectures, languages, and libraries to mission needs.