Java developer Jobs in Hayward, CA

Job description: - FTE // W2 Contract Role 1 Role 2 Java backend San Leandro, CA Senior: 8+ Yrs Orchestration & GL ID generator Java, Spring-boot, MongoDB, Apache Flink, Apache Kafka, Prompt Engineering Java/Python We are seeking a highly skilled Senior Java Backend Engineer with 8+ years of experience to lead the design and development of scalable backend systems. The ideal candidate will have deep expertise in orchestration frameworks and GL ID generation, with a strong foundation in distributed systems and real-time data processing. Key Responsibilities: Architect and implement backend services using Java and Spring Boot Design and optimize orchestration workflows and GL ID generation mechanisms Develop scalable data pipelines using Apache Flink and Kafka Required Skills: Proficiency in Java (and optionally Python) Strong experience with Spring Boot, MongoDB, Apache Kafka, and Apache Flink Hands-on experience with orchestration tools and ID generation systems Familiarity with prompt engineering concepts is a plus Excellent problem-solving and communication skills Java backend San Leandro, CA Senior: 8+ Yrs Debit Java, Spring-boot, Oracle, J2EE Java/J2EE We are seeking a seasoned Java Backend Engineer. This role involves building and maintaining robust, scalable backend services that power our debit transaction platforms. The ideal candidate will have deep expertise in Java/J2EE technologies, Spring Boot, and Oracle databases, with a strong understanding of financial systems and transaction processing. Key Responsibilities: Design, develop, and maintain backend services using Java, J2EE, and Spring Boot Build scalable APIs and microservices to support debit transaction workflows Optimize Oracle database queries and schema design for high-volume systems Collaborate with cross-functional teams to deliver secure and reliable payment solutions Required Skills: Strong proficiency in Java and J2EE frameworks Hands-on experience with Spring Boot and RESTful API development Solid understanding of Oracle databases, including PL/SQL and performance tuning Experience in financial services or payment systems, particularly debit processing Familiarity with CI/CD pipelines and Agile development methodologies Additional Job Details: About Tanisha Systems, Inc. Tanisha Systems, founded in 2002 in Massachusetts-*, is a leading provider of Custom Application Development and end-to-end IT Services to clients globally. We use a client-centric engagement model that combines local on-site and off-site resources with the cost, global expertise and quality advantages of off-shore operations. We deliver Custom Application Development, Application Modernization, Business Process Outsourcing and Professional IT Services from office locations in * and *. Tanisha Systems services clients in Government, Banking & Financial Markets, Insurance, Healthcare, Retail & Consumer Goods, Energy & Utilities, Life Sciences, Telecom, Manufacturing and Transportation Industries around the globe. Our engagement model provides a flexible operational environment that empowers our clients with the right levels of control. Want to read more about Tanisha Systems? Visit us at www.tanishasystems.com Website Open Jobs