Top Java Developer Jobs in Los Angeles, CA

Investigates customer escalations, performs root-cause analysis across complex Java codebases, and delivers production-ready fixes. Uses AI-assisted tools for log analysis, defect diagnosis, code remediation, test generation, and validation. Communicates issue status, documents resolutions, maintains knowledge content, supports teammates, and contributes to product enhancements. The role includes periodic after-hours and weekend pager coverage.

Develop and deploy Java Spring Boot microservices, REST APIs, automated tests, performance and chaos testing solutions. Manage EKS infrastructure, CI/CD workflows, monitoring, JVM and database optimization, and production support. Migrate TIBCO BW processes to Apache Camel and ActiveMQ Artemis, implementing resilient messaging and standardized exception handling. Maintain API documentation, testing records, and ServiceNow change-management tickets.

Design, develop, test, deploy, and support scalable Java and Spring Boot microservices. Build REST APIs, automated tests, Camel and Artemis messaging workflows, and resilient infrastructure on EKS. Collaborate on CI/CD, monitor production systems with Datadog, optimize performance, document APIs and testing outcomes, and manage ServiceNow deployment tickets. The role also involves migrating TIBCO BW processes to Apache Camel and supporting production installations across various U.S. locations.

Build enterprise workforce management software for forecasting, staffing, scheduling, adherence, intraday management, and operational reporting. Develop Java and Spring Boot microservices, React and TypeScript applications, REST APIs, event-driven workflows, PostgreSQL data models, integrations, and cloud-native deployments. Support CI/CD, production troubleshooting, performance optimization, architecture discussions, code reviews, and stakeholder collaboration across product, QA, DevOps, UX, and operations.

Develop and support scalable cloud-native applications using Java, Spring Boot, React, TypeScript, Node.js, PostgreSQL, and microservices. Responsibilities include building REST APIs, integrations, CI/CD pipelines, containerized deployments, observability, automated testing, and production support. The engineer will collaborate with product, UX, QA, DevOps, architecture, and clients while improving application performance, resilience, and maintainability. Workforce Management, Customer Experience, contact center, cloud, messaging, and secure API experience are advantageous.

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.

Build and maintain Java backend services, REST APIs, and full-stack web application features. Develop frontend functionality, use Python for supporting work, and apply AI coding tools such as Claude Code for development, testing, and debugging. Collaborate on design decisions and code reviews, troubleshoot issues, and support application deployment and maintenance across cloud environments.

Develop full-stack enterprise applications and microservices using Java, Spring Boot, REST/OpenAPI, relational databases, JMS, and Kafka. Build automated tests, Docker containers, Kubernetes deployments, CI/CD pipelines, API portals, and React or Angular interfaces. Troubleshoot application, database, messaging, and cloud-native infrastructure issues while applying secure coding, API governance, observability, and event-driven architecture practices. The role supports federal civilian programs remotely during East Coast hours, requires U.S. citizenship, quarterly travel, and either Public Trust eligibility or an active Secret clearance depending on program.

Build and maintain Java and Spring Boot backend services, REST APIs, SQL integrations, and React or Angular interfaces. Write tested code, troubleshoot issues, improve performance, and support deployment through CI/CD. The role also involves integrating basic AI capabilities such as LLM APIs and AI assistants into application workflows.

Senior individual-contributor backend engineer responsible for designing, building, and operating production-grade, highly available, strongly consistent services for wallet operations, transaction orchestration, blockchain integrations, and event-driven workflows. Implement secure, scalable APIs, cryptographic key management, Kafka-based event systems, observability with OpenTelemetry, CI/CD pipelines, and produce tests, API specs, and operational runbooks.

Develop and deploy full-stack applications using Java, Spring, Angular, Oracle, and Azure. Responsibilities include building REST APIs and microservices, optimizing database performance, troubleshooting across the stack, participating in architecture and code reviews, and collaborating with QA, DevOps, UX, and product teams.

Develop and enhance full-stack commerce applications and web services using Java and Spring. Responsibilities include analyzing requirements, designing databases, APIs, services, and front-end applications, coordinating project work, collaborating with cross-functional teams, meeting performance SLAs, troubleshooting defects, conducting code reviews, and participating in Agile ceremonies. The role also involves supporting enterprise, website, sales, and customer-facing applications.

Leads the design, development, testing, and maintenance of full-stack applications using Java, Spring, React, databases, and APIs. Owns medium- to large-scale features through production, contributes to architecture, reviews code and designs, and improves observability, performance, reliability, and resiliency. Participates in incident response and root-cause analysis while mentoring engineers and collaborating across Product, Design, QA, and engineering teams.

Maintain and support Java-based healthcare SaaS applications across multiple customer environments. Responsibilities include bug fixes, feature delivery, refactoring, deployments, security remediation, SQL and data migrations, code reviews, configuration improvements, and production support. The role requires a generalist software engineer comfortable with Java, Angular, SQL, REST APIs, enterprise applications, and customer-facing environments.

Develop scalable Java Spring Boot APIs, microservices, React-based interfaces, ETL pipelines, and SQL data solutions. Deploy workloads on AWS, optimize performance, implement monitoring and automation, and collaborate with product, frontend, data, and DevOps teams. The role also contributes to architecture, accessibility, reliability, and data-driven product improvements.

Develop and maintain scalable Java and Spring Boot backend applications, microservices, and RESTful APIs. Responsibilities include database integration, code reviews, performance optimization, production troubleshooting, testing, CI/CD, cloud deployment, and collaboration with product, QA, and DevOps teams.

Develop and maintain scalable Java and Spring Boot backend applications and REST APIs. Optimize CPU, memory, and overall application performance; identify bottlenecks; resolve production issues; and contribute to architecture, code reviews, reliability, and scalability. The role also involves Node.js or Python FastAPI services, cross-functional collaboration, and potential work with GraphQL, generative AI, cloud platforms, containers, CI/CD, and monitoring tools.

Design, develop, test, and maintain Java-based enterprise applications and scalable REST APIs/microservices using Spring Boot. Work with relational databases, unit/integration tests, CI/CD, version control, and participate in Agile ceremonies. Support cloud deployments, debugging, code reviews, and collaborate with cross-functional teams.

Designs, develops, tests, documents, and operates large-scale distributed software products for Allstate’s Enterprise Payments organization. Responsibilities include building Java and Spring Boot REST APIs, designing microservices, collaborating on system architecture, practicing paired programming and test-driven development, establishing CI/CD pipelines, improving performance, securing APIs, supporting production applications, and contributing to Agile planning, retrospectives, and knowledge sharing.

Seeking a Senior Java Engineer with 10+ years of experience in Java/J2EE development, strong skills in Core Java, Spring, and Hibernate. Knowledge in REST or SOAP web services is essential.

The role involves maintenance, new development, bug fixing, and issue evaluation for the STB middleware, requiring strong Java and multithreading skills.

This Java Developer role involves enhancing data utilization for a state-run project, developing Java web applications, collaborating with teams, and ensuring software quality and security.

Design, develop, test, deploy, and maintain scalable Java backend applications using Spring Boot and microservices. Build RESTful and SOAP integrations, optimize performance and reliability, implement security controls, and develop relational and NoSQL database solutions. Collaborate with architects, product owners, and frontend teams; participate in design reviews and architectural decisions; troubleshoot production issues; and uphold DevOps, CI/CD, coding, and Agile practices. Mentor junior developers and guide technical discussions across enterprise development teams.

Investigate and resolve data-quality issues in large-scale distributed systems. Design Java-based repair pipelines and idempotent correction jobs for high-volume datasets, debug existing code, use AWS services for queue-driven and batch workflows, optimize performance and concurrency, and communicate technical findings and risks to stakeholders.

The Entry Level Java Developer will assist in application development, perform unit testing, document technical actions, and communicate updates on projects.