Top Senior Java Developer Jobs in Denver & Boulder, CO

Senior Java developer responsible for designing, developing, and deploying Java/J2EE web applications and web services (SOAP/REST). Work includes microservices development, CI/CD, Tomcat/WebLogic deployments, JDBC/Hibernate/iBatis integration, caching, performance tuning, and supporting assessment/design/code/build/deploy phases for US Cable MSO systems.

Develop and maintain Java/J2EE web applications and web services (SOAP/REST); build and support microservices and CI/CD pipelines; deploy to Tomcat/WebLogic; work with JDBC/Hibernate/iBatis and caching; perform performance engineering, capacity planning, and assess design/code/build/deploy for microservices. Support US Cable MSO IT systems.

Senior Java developer responsible for designing, developing, and deploying Java/J2EE web applications and microservices. Work includes SOAP/REST web services, CI/CD, Tomcat/WebLogic deployments, JDBC/Hibernate/iBatis integration, performance tuning, and supporting assessment/design/code/build/deploy phases, primarily for US cable MSO IT systems.

Lead migration of legacy COBOL systems to Java-based microservices and develop scalable, secure full-stack solutions on Azure. Build RESTful APIs, optimize performance, ensure DoD cybersecurity compliance, collaborate across teams, document architectures, and participate in Agile ceremonies.

Design, develop, test, and deploy Java/J2EE applications and integrations. Lead implementation planning, gather and specify requirements, mentor junior developers, resolve defects, support production (on-call), and ensure database and SOX-compliant process documentation.

The Java Engineer will design, develop, implement, and support systems for processing massive real-time data, collaborating with a team of 20 developers.

Develop Java EE applications and web services using Spring and Hibernate. Implement SOAP/REST APIs, and utilize CI/CD tools like Jenkins. Engage with cloud technologies and improve business processes.

The Senior Full Stack Java Developer will design and maintain enterprise applications using Java and modern front-end technologies while collaborating in Agile teams and mentoring junior developers.

The role involves building backend services for advisor productivity, integrating data sources, designing APIs, and contributing to both backend and frontend development in a greenfield project.

Senior Backend Engineer responsible for designing and building backend services and microservices for payment products. Work includes C++/C#/Java development, REST APIs, Informix/Postgres data stores, CI/CD, cloud deployments, encryption, TDD, and collaborative agile delivery with ownership of architecture and operational quality.

Develop and integrate enterprise applications using MuleSoft and Java/JEE. Design/implement web services (SOAP/REST), transform data (XSLT/XML), work with Apache Camel/Spring Integration, coordinate requirements and project tasks, and support consulting engagements that may require travel.

Develop and maintain Java/J2EE enterprise applications using Spring, Hibernate, Web Services, and Oracle/PL-SQL. Participate in design/architecture reviews, requirements elicitation, and SDLC activities. Work with CI tools, version control, and QA processes in a financial services global delivery environment.

As a Senior Software Engineer, you will maintain and develop data connectors, enhance data integrations, and improve developer experience within the ClickHouse data ecosystem.

As a Senior Full Stack Engineer, you'll design, build, and support robust platform solutions while integrating front-end components with back-end systems, managing CI/CD pipelines, and automating infrastructure.

Lead design and delivery of scalable, resilient distributed systems. Act as technical authority across teams, mentor engineers, drive architecture and CI/CD best practices, troubleshoot production issues, optimize performance, and enhance observability while writing production-grade Java.

The Lead Java Software Engineer will design, develop, and deploy cloud-based enterprise applications, focusing on performance, security, and collaboration with cross-functional teams. The role requires hands-on leadership in the software development lifecycle, code quality, and continuous improvement in a remote environment.

The Senior Java Developer will design, develop, and implement custom software solutions in Agile teams, mentor juniors, and ensure product quality.

Optimize and scale blockchain node performance, design and implement core system plugins, collaborate with cross-functional teams, conduct performance testing and debugging, and stay current on blockchain and distributed systems technologies to maintain reliable infrastructure.

Develop and maintain Java backend services for enterprise blockchain applications, integrate APIs with React/Vue frontends, design scalable blockchain solutions, troubleshoot complex backend issues, and collaborate with the team to apply best practices and stay current with blockchain trends.

The Senior Java Developer will design and implement JEE software applications, develop automation tests and manage full software development lifecycle activities.

The Senior Java Developer will manage Java application development, focusing on scalable enterprise applications, and oversee the full software lifecycle.

Design, develop, test, containerize, and maintain mission-critical software for missile warning systems. Write unit tests, use Docker (Kubernetes a plus), implement CI/CD pipelines, produce documentation, diagnose anomalies, and work on-site with Agile teams in a secure environment requiring an active Secret clearance.

Design, develop and operate microservice-based components for a derivatives exchange platform. Collaborate with product, security and DevOps teams to build scalable, secure back-end systems with automated testing, CI/CD, and rapid deployment. Participate in code audits, testing, release, and cross-stack problem solving; optimize and implement trading models and products.

The Senior Software Engineer will develop and maintain big data applications, focusing on distributed computing, automation, and collaboration with teams to enhance healthcare solutions.

As a Java Software Engineer III, you will design, develop, and maintain scalable Java-based backend services, mentor other engineers, and influence architectural decisions in an agile environment.