Java Full Stack DeveloperContract, Mountain View, CA (Onsite)Mandatory skills: Payment processing, Payment gateway, APIs Integration & React Js is must to haveNice to have: QuickBooks OnlineResponsibilities: Create and manage APIs essential for payment processing and integration with QuickBooks Online booking and accounting features. Develop a server-side SDK to assist merchants with API integration.Required Skills: Expertise in API development, experience with payment gateways and transaction processing, knowledge of financial compliance and security standards, integration experience with QuickBooks Online, familiarity with multiple backend Java related technologies. Proficient in Java, Spring boot and AWS knowledges, RESTful API, Swagger.