Top Senior Java Developer Jobs in San Francisco Bay Area, CA

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.

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.

The Senior/Lead Java Developer is responsible for designing and implementing backend modules, writing server-side code, and collaborating with cross-functional teams to drive projects and integrate new technologies.

Seeking a Senior Java Developer with 7+ years of experience and expertise in Java, Spring, Maven, and database technologies. Responsibilities include integration, automation testing, and effective problem-solving.

The Sr. Java Developer is responsible for designing, implementing, and maintaining scalable APIs, leading junior developers, and tackling big data challenges using various technologies. Must have strong Java, Kafka, and NoSQL experience.

Lead design, architecture, and delivery of scalable, distributed cloud-based systems. Own features end-to-end, guide technical planning, mentor engineers, improve engineering practices, resolve production issues, and collaborate with product and cross-functional teams.

The Sr. Java Developer will design and implement core Java/J2EE systems, lead projects, and mentor teams while managing technical challenges.

Seeking a Java Developer with extensive experience in front-end and back-end technologies. Must have mobile app development skills and strong Java knowledge.

Seeking a Java/Cloud developer with 5+ years of experience. Responsibilities include designing scalable web services and cloud APIs, promoting engineering practices, and providing support for existing platforms.

The Senior Java Developer will focus on backend development, utilizing Java, Kafka, Cassandra, and Spring technologies to create complex systems and maintain high availability.

The role involves designing and developing software solutions, unit testing, and collaborating with various teams to improve customer experience using rich data sets.

The Front End Java engineer will design and develop software using Java and JavaScript, with expertise in MVC frameworks like Backbone.js, focusing on the Unified project's Browse front end pages.

The Backend Java Developer IV leads large Java/J2EE projects, requiring extensive development, teamwork, and communication skills alongside proven technical expertise.

Develop and modernize laboratory informatics software by converting Perl CGI applications to Java web services. Responsibilities include Java and Perl development, unit testing, SQL and database optimization, dynamic reporting, software design, application integration, code reviews, system interfaces, algorithm development, and architectural evaluations within regulated pharmaceutical and life sciences environments.

Senior backend engineer to own platform components, design and implement high-availability RESTful services, security architecture, data management, analytics pipelines, logging/monitoring, and collaborate on architecture, integration, code review, testing, and production deployments.

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.

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.

This role requires a Java/Cloud engineer with extensive experience in Java development, cloud technologies, and strong problem-solving skills, capable of working independently and communicating effectively with senior leadership.

Design, build, and maintain scalable J2EE business applications. Implement features, fix bugs, participate in code reviews, automate tests, optimize performance, and produce documentation.

Design, develop, and maintain Java-based backend services and APIs for KeeperApp. Own backend components, optimize MySQL schemas/queries, ensure performance and reliability, apply secure coding practices, participate in code reviews, and collaborate with product and engineering teams to deliver features iteratively.

Lead AEM developer responsible for Adobe CQ/AEM development with strong Java/J2EE skills; manage tag/script via Adobe DTM, A/B testing with Adobe Target, collaborate with PM/QA/UX, assist deployments and migrations, integrate social features, and generate Adobe SiteCatalyst reports.

Lead design and development of Java/J2EE web applications using JPA, EJB3, JBoss (Seam, EAP), JSF, Spring, Hibernate, and Oracle. Implement web services, messaging, CI/CD with Git/Jenkins/Maven, and participate in Agile/Scrum delivery. Provide technical leadership and solve complex architectural and integration problems.

Senior Java developer to build and maintain core Java/J2EE applications with faceted/index search capabilities using Apache Solr, Lucene, and Hibernate Search. Work may involve MySQL and distributed database technologies on a 12-month contract with possible extensions.