Senior Java Developer with Kafka, Cassandra, and Spring Expertise

Are you an innovative J2EE Developer with a passion for crafting robust applications? Join our dynamic team at Sonsoft Inc. in San Francisco! We are seeking a skilled developer who is proficient in Java, J2EE, and Spring Boot to enhance our application development process. Your expertise will be crucial in building scalable solutions that meet the needs of our clients.

Join our dynamic team at Sonsoft Inc. as a J2EE Developer specializing in Spring Boot and Maven. You will be responsible for developing high-quality software solutions, collaborating with cross-functional teams, and contributing to all phases of the software development lifecycle.

Join our dynamic team at Sonsoft Inc. as a J2EE Developer, where you will leverage your expertise in Core Java, Spring Boot, and MAVEN to build robust applications. You will be a crucial part of our development team, contributing to the design and implementation of innovative software solutions that meet client needs.

Join our dynamic team at Sonsoft, Inc. as a J2EE Developer where you will leverage your expertise in Core Java, Spring Boot, and MAVEN to create innovative software solutions. You will be responsible for developing and maintaining high-performance applications that meet the needs of our clients. Collaborate with cross-functional teams to design, implement, and optimize software applications.

Join our dynamic team at Sonsoft Inc. as a J2EE Developer! In this role, you will leverage your expertise in Core Java, Spring Boot, and MAVEN to build robust applications. You will be responsible for developing high-quality software solutions that meet our clients' needs. Collaborate with cross-functional teams to define, design, and deliver innovative solutions that enhance user experience and operational efficiency.

Join Sonsoft Inc. as a J2EE Developer with a strong focus on Spring, Spring Core, and Spring Boot. You will be responsible for designing, developing, and maintaining robust applications that meet our clients' needs. This is an excellent opportunity for someone who thrives in a collaborative environment and is eager to tackle challenging projects.

Join Sonsoft Inc. as a Java/J2EE Framework Developer in the vibrant city of San Francisco. We are seeking a talented and driven individual to help us build robust applications using Java and J2EE frameworks. You will collaborate with a dynamic team, working on innovative projects that impact our clients and the industry.

Join our dynamic team at Sonsoft Inc. as a J2EE Developer, where you will leverage your expertise in Java and Web Services to craft innovative solutions that drive our projects forward. You will be responsible for developing high-quality software, collaborating with cross-functional teams, and participating in all phases of the software development lifecycle.This role offers a fantastic opportunity to grow your skills and make a significant impact in a collaborative environment.

Join our dynamic team as a Java / J2EE Developer at Sonsoft Inc. in the heart of San Francisco! We are seeking an innovative and skilled developer to design, develop, and maintain robust applications using Java and J2EE technologies. You will collaborate with cross-functional teams to deliver high-quality software solutions that meet our clients' needs.

We are seeking a skilled and motivated Java / J2EE Developer to join our dynamic team at Sonsoft Inc. in San Francisco. In this role, you will be responsible for developing and maintaining robust Java applications, ensuring high performance and responsiveness. You will collaborate with cross-functional teams, participate in code reviews, and contribute to the overall software development lifecycle.

Join our dynamic team as a Java Developer, where you will design, develop, and enhance backend services that fuel our innovative products and internal systems. Collaborating closely with product management, design, and data teams, you will deliver robust features, optimize performance, and elevate our engineering standards.

Join our dynamic team at Sonsoft Inc. as a Java/J2EE Consultant. We are seeking an experienced professional who is passionate about software development and eager to tackle complex challenges. In this role, you will collaborate with cross-functional teams to design, develop, and implement Java-based applications that meet our clients' needs.As a consultant, you will utilize your expertise in J2EE technologies to deliver high-quality solutions while ensuring optimal performance and scalability. Your problem-solving skills will be crucial in diagnosing and resolving technical issues. If you are looking for a rewarding opportunity to grow your career in a supportive environment, we want to hear from you!

Join our dynamic team as a Java / J2EE Consultant where you will leverage your expertise in Java technologies to develop robust software solutions. You will collaborate with cross-functional teams to design, implement, and optimize applications that meet our clients' needs.

We are seeking a talented Java Developer with strong experience in Spring MVC and Core Java to join our dynamic team. In this role, you will be responsible for designing, developing, and maintaining high-performance applications. You will collaborate with cross-functional teams to deliver innovative solutions that meet our clients' needs.

About Our TeamAt OpenAI, the Developer Experience team is dedicated to empowering developers around the globe. Our mission is to provide exceptional and seamless experiences for developers and startups, enabling them to integrate AI technologies into their applications and products effortlessly. We ensure that our developers have access to the tools, resources, and support necessary to fully harness the power of AI.We create engaging demos, robust developer tools, sample projects, and informative content that illustrate how to build outstanding applications using our advanced models, including OpenAI o3 and GPT-4.1, along with multimodal capabilities and tools like Codex.Our team collaborates closely with product, engineering, research, and go-to-market teams to ensure that the developer journey—from the first API call to full production deployment—is seamless, efficient, and enjoyable.About the RoleAs a Developer Experience Engineer, you will be responsible for creating compelling technical content, innovative developer tools, and sample applications that inspire and empower developers to succeed with OpenAI's APIs and products. You will interact with developers and technical founders, showcasing best practices and building cutting-edge applications powered by our leading models and tools.We are seeking individuals who possess a blend of strong technical abilities, creativity, and a passion for engaging with and empowering the developer community.Key Responsibilities:Design and develop demos and sample applications that highlight innovative integrations and best practices utilizing reasoning models, multimodal capabilities, and agent tools.Produce high-quality technical content—including tutorials, blog posts, videos, and code samples—to educate and inspire developers about our models, APIs, and Codex.Engage actively with and cultivate a vibrant local and global developer ecosystem surrounding OpenAI’s platform.Represent OpenAI at developer events and online platforms, serving as a knowledgeable and approachable advocate for developers.Collect and synthesize developer feedback to inform and enhance our product roadmap.Collaborate cross-functionally with product, engineering, and marketing teams to ensure the successful adoption of OpenAI’s developer tools and APIs.Directly contribute to the improvement and refinement of OpenAI’s developer interfaces and experiences.

Join Sonsoft Inc., a leading technology solutions provider, as a Java Developer. We are looking for a skilled professional with a solid background in Core Java and Spring MVC. This is an exciting opportunity to work in a dynamic environment where innovation meets excellence.

Join our innovative team at Sonsoft Inc. as a Java/J2EE Architect, where you will play a critical role in shaping our software solutions. We are looking for a talented individual who is passionate about Java technologies and has the ability to design and implement robust architectures. You will work closely with cross-functional teams to deliver high-quality applications that meet our clients' needs.

About SentryAt Sentry, we believe that poor software is a thing of the past. Our mission is to empower developers to create high-quality software more efficiently, allowing us to enjoy the technology we love.With over $217 million in funding and a community of more than 100,000 organizations backing our vision, we are developing advanced performance and error monitoring tools used by industry leaders such as Disney, Microsoft, and Atlassian, enabling them to focus on innovation rather than bug-fixing.We embrace a hybrid work model across our global offices, designating Mondays, Tuesdays, and Thursdays as in-office days to foster meaningful collaboration. If you are passionate about creating tools that enhance the digital experience, join us in building the future of software monitoring.About the RoleOur Developer Experience team is expanding in San Francisco! This role is hybrid and requires you to be based at our headquarters. We are searching for an innovative builder with a strong viewpoint on exceptional developer documentation.If you are an individual who enjoys experimenting with the latest features in your favorite tools, loves exploring new JavaScript frameworks, and is frustrated by inaccurate code snippets or documentation, then this role at Sentry is perfect for you. The Developer Experience team merges the excitement of shipping cutting-edge products with ensuring developers can use them effectively.If you are confident in collaborating with Product and Engineering teams to test and launch new features, and possess the ability to dive in and solve complex problems while maintaining a keen eye for quality documentation, this could be your dream job.As part of Sentry's Developer Experience team, you will be a builder constantly seeking ways to simplify the experience for developers using our tools. You will engage with the technical community to understand their challenges, support developers, gather feedback, and assist our product and engineering teams in releasing new features.In this role, you will be expected to bring solutions to the table, propose product strategies, identify necessary resources and partnerships, and execute your plans effectively.

Runlayer creates secure and observable AI infrastructure for enterprise clients. The platform combines MCPs, Skills, and Agents so organizations can move their AI projects forward while meeting strict safety requirements. Backed by $11 million from Khosla Ventures and Felicis, Runlayer supports companies such as Gusto, Instacart, and Opendoor. The team is 25 strong, mostly engineers, and has launched features like AI Actions for OpenAI, Zapier Agents for millions of users, and partnered with Anthropic to deliver the first remote MCP server. The company benefits from guidance by the co-creator of MCP, who is also an investor. Role overview The Developer Experience Lead will be based in San Francisco or New York City. This position shapes how Runlayer connects with developers and the wider enterprise AI community. The role focuses on managing Runlayer’s presence at major industry conferences, overseeing sponsorships, and building a technical community that reflects customer needs. What you will do Lead Runlayer’s participation at conferences such as AWS re:Invent, AI Engineer World's Fair, MCP Dev Summit, and RSA. Organize developer-focused events, including meetups, hackathons, dinners, and technical workshops for MCP developers and platform engineers. Handle booth logistics, coordinate speaking opportunities, arrange side events, and manage client dinners at conferences. Grow and support the technical community around Runlayer and the MCP ecosystem. Develop technical content and demos for events. Collaborate closely with engineering and product teams to ensure technical accuracy at every event. Why join Impact: Represent Runlayer at leading AI and enterprise infrastructure conferences. Excellence: Join a team that treats user engagement and events as core go-to-market strategies. Ownership: Drive conference strategy, developer relations, and community engagement from the ground up.