About Josys Josys is a modern AI-native identity security and governance platform. Enterprise AI adoption has made identity the fastest-growing attack surface, and the hardest to govern. Josys discovers, governs, and secures every identity — human, machine, and AI agent — across every application in the enterprise, allowing security and IT teams to surface risk, control access, and remediate identity threats in real-time. Trusted by over 1,000 organizations and MSPs worldwide, Josys turns identity from the fastest-growing attack surface into an autonomously governed advantage. For more information, visit josys.com. About The Role We are looking for a skilled Senior Software Engineer with hands-on Ruby on Rails expertise to join our team. The successful candidate will be responsible for developing and maintaining the back-end infrastructure of our B2B SaaS product. The ideal candidate should have a strong understanding of software architecture, database design, and server-side programming languages. Additionally, the candidate should have experience working with cloud-based infrastructure (AWS, preferably) and be able to develop highly scalable and secure systems. Key Responsibilities: * Collaborate with the development team, product managers, and designers to understand business requirements and contribute to technical specifications and software solutions. * Assist in designing, developing, testing, and deploying back-end components of web applications. * Work with front-end engineers to develop APIs that facilitate smooth data flow and system interoperability. * Optimize code, conduct testing, and following best practices to ensure the reliability, performance, and security of the application. * Learn and contribute to the development and maintenance of cloud-based infrastructure, preferably using AWS, ensuring scalability, high availability, and disaster recovery. * Collaborate with cross-functional teams to ensure successful product launches and provide support when needed. * Participate actively in Agile development practices, including sprint planning, stand-ups, and retrospectives. * Contribute to the refinement of user stories, provide effort estimations, and prioritize tasks to ensure timely delivery. * Participate in code reviews to maintain code quality, receive constructive feedback, and adhere to best practices. * Stay updated with industry trends and emerging technologies, evaluating their potential benefits for the product and the development team. * Actively contribute to continuous improvement initiatives by suggesting process enhancements and implementing approved changes. Requirements / Qualifications: * Candidate should have 5+ years of Ruby on Rails backend development experience * Strong IC (individual contributor) is required for the role, who can join any existing project and start contributing within a week’s time * Can build and integrate using REST APIs in rails * Has experience working on async processors like Sidekiq / Resque / ActiveJob / Shoryuken * Understands rails object oriented programming concepts * Familiarity with front-end technologies such as HTML, CSS, and JavaScript is a plus. * Exposure to cloud-based infrastructure, preferably AWS services, and a strong desire to learn about scalable and secure system development. * Effective problem-solving in ambiguous and complex technical scenarios. * Strong computer science fundamentals and automation testing technologies. * Focus on customer satisfaction and holistic user experience. * Excellent communication, collaboration, and mentoring abilities.