Top Java Developer Jobs in Boston, MA

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.

As a Principal Software Data Engineer, you'll lead the design, development, and optimization of large-scale data platforms and pipelines, ensuring data governance and driving innovation in a collaborative environment.

Join an agile team to design, develop, test, and deploy enterprise web applications. Build high-quality Java/J2EE solutions, maintain system docs, implement RESTful services, improve SDLC practices (TDD, CI/CD, static analysis), and collaborate with architects, developers, and stakeholders. Perl experience required.

Design, build, and maintain scalable backend services and APIs using Java and Spring Boot. Implement event-driven architectures with Kafka, manage PostgreSQL/Redis data, ensure performance and reliability, troubleshoot production issues, participate in code reviews, and collaborate across teams for deployments and monitoring.

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

Design, develop, test, deploy and support large Java applications on Linux/UNIX (ksh). Own integrations, resolve complex issues, maintain SLAs, use Kubernetes, CI/CD (Harness/Jenkins), GitHub, monitoring/observability, and collaborate with product owners to deliver large projects.

Design, develop, and maintain Java-based backend services (rating, eligibility, product data) on AWS. Convert high-level specs into detailed designs, write and test code, document design decisions, collaborate across teams, ensure performance, quality, security, and provide technical guidance for moderate-to-complex business solutions.

Design, develop, test, and maintain enterprise-grade Java microservices using Spring Boot and PostgreSQL. Collaborate with product teams in Agile/Scrum, produce APIs and documentation, troubleshoot build/deploy issues, and support modernization of legacy IRS systems in a cloud environment.

Develop and maintain the Java client library and high-performance C/C++ server applications. Implement message parsers and feed handlers, optimize for extreme throughput and low latency, build tools for petabyte-scale processing, collaborate on build/deploy/CI practices, monitor uptime, and support smooth feature rollouts.

Designs, implements, and runs Java Spring Boot microservices and REST APIs; leads design, CI/CD, TDD, performance tuning, security, and cross-product collaboration. Coaches teams and owns product KPIs and production support.

Design, develop, and maintain scalable Java/Micronaut enterprise frameworks and cloud-native microservices on Azure. Build and deploy services to AKS, create CI/CD pipelines with Azure DevOps, implement batch/asynchronous workflows, integrate messaging systems, optimize databases, and ensure security, observability, and resilience.

As a Senior Developer, you will modernize COBOL systems to Java, enhancing functionality and performance while collaborating with stakeholders and ensuring coding standards are met.

As a Senior Software Engineer, you will build cloud solutions, define migration strategies, mentor junior engineers, and ensure architectural integrity while collaborating with peers.

Lead an agile engineering team to design, build, and operate scalable Java-based, cloud-native, event-driven systems. Mentor developers, perform design/code reviews, troubleshoot production issues, and drive AI-assisted development and engineering best practices.

Lead backend architecture and implementation for Java Spring microservices, validate and own AI-assisted code, mentor engineers, collaborate with product to deliver features, and drive technical excellence and scalable, test-covered systems.

Senior Java developer responsible for designing, developing, testing and maintaining Java/J2EE web applications using Spring, Hibernate, JMS and frontend frameworks (Angular/Bootstrap). Participate in SDLC activities, Agile/Scrum rituals, database design and query optimization, CI/build scripts, and use enterprise app servers and tools for deployment and testing.

Seeking a senior Java developer with 5+ years building J2EE/web applications, distributed and real-time systems. Responsibilities include OOA/OOD, implementing core business logic, APIs and frameworks, web UIs (AngularJS/jQuery/HTML5/Swing/JavaFX), application frameworks (Spring/Hibernate/JSF/Struts), SOA/Web Services integration, working on Unix/Linux/Windows, and using build/deploy/test automation tools (Ant/Maven/Jenkins/Chef/JUnit/Selenium). Preferred: Cassandra, RabbitMQ, Pivotal Cloud Foundry, Spring Boot.

Develop and deliver enterprise software for centralized management of hyper-converged datacenter products. Collaborate with architects, product management, QA, and system test in an Agile/Scrum environment. Implement Java and Python components, REST APIs, and integrate with VMware and datacenter automation tools.

Develop and maintain ATG/Java J2EE applications and services. Implement XML/HTTP and RESTful APIs, front-end components (jQuery/AngularJS), and backend frameworks (Struts, Spring, Hibernate). Work with WebLogic, Oracle DB, JDBC/PLSQL, AWS, microservices, and RabbitMQ. Participate in full SDLC, collaborate with stakeholders, troubleshoot complex issues, and support iOS/Swift development as needed.

Design, implement, test, and maintain full‑stack features and services for the Cayuse Research Platform. Drive architecture, prototypes, and technical debt reduction while practicing TDD, expanding automated QA, collaborating cross‑functionally, and ensuring high quality delivery in an Agile environment.

Lead Software Engineer responsible for designing, developing, testing, and maintaining a distributed processing application using Python and Java. Collaborate with product owners, data coaches, analysts, DBAs, and Agile teams to meet backend/frontend requirements, implement cloud and big-data solutions (Spark/Hadoop), and ensure program standards and reliable delivery.

Develop, test, and maintain a complex distributed processing application using Python and Java. Collaborate with product owners, data coaches, analysts, DBAs, and Agile teams to meet backend/frontend requirements. Work with distributed workloads (Spark/Hadoop), SQL/Snowflake, AWS, shell scripting, and job scheduling/process automation. Support delivery under Agile/SAFe practices and ensure alignment with program standards.

Design, develop, and maintain web-based UI and REST middleware for federal health IT systems. Participate in Agile/SAFe ceremonies, write design documents, implement features, resolve bugs, and support CI/CD pipelines while collaborating with product, QA, and stakeholders.

Design, build, and support cloud-native full stack or backend Java products using TDD, CI/CD, microservices and event-driven patterns. Collaborate with product teams, provide production support, implement monitoring and ensure secure, performant systems.