• Write clean, maintainable, and efficient Ruby code. • Design and develop robust, scalable, and secure backend features. • Lead the backend area, making technical decisions and guiding best practices. • Contribute to all phases of the development lifecycle (design, implementation, testing, deployment, maintenance). • Rigorously apply Test-Driven Development (TDD) to every deliverable. • Integrate and leverage AI throughout the development process: reasoning and solution design. • Generate and refactor code. • Design and automate tests. • Debug and optimize performance. • Follow and promote best practices: unit testing, continuous integration, SCRUM, refactoring, and code standards. • Drive adoption of new technologies within the stack when they add value. • Be available and actively collaborate during product incidents or customer support when necessary. • Give and receive constructive feedback, challenging others with kindness and technical rigor.