• Own the generation, quality, and reliability of backend code produced through AI-assisted development workflows. • Define and maintain clear acceptance criteria and test cases prior to implementation, ensuring a strict test-driven development approach. • Review, refine, and approve AI-generated backend code to ensure it meets functional, performance, and reliability requirements. • Provide structured guidance and constraints to AI systems so generated code aligns with established backend architecture, data models, and service patterns. • Write code as necessary to fill in gaps and bridge the last mile. • Ensure backend implementations handle edge cases, error conditions, and failure scenarios correctly. • Act as the final quality checkpoint for backend code prior to merge or deployment. • Collaborate with product, front-end, and QA partners to translate requirements into precise, testable backend behavior. • Maintain high standards for data integrity, security, and system observability.

• Design and implement new features for KeeperChat across desktop, mobile, and web platforms • Develop and maintain cross-platform applications using .NET / C#, including MAUI-based clients • Build and maintain web UI components using JavaScript and React where applicable • Optimize application performance, reliability, and user experience across Windows, macOS, iOS, and Android • Participate in code reviews and contribute to high standards of code quality and security • Collaborate closely with product managers and designers to translate requirements into technical solutions • Mentor junior engineers and contribute to a culture of technical excellence

• Design and implement backend services and APIs using Java • Write clean, maintainable, and efficient server-side code • Implement and evolve business logic that supports core KeeperApp functionality • Work with MySQL to design schemas, write queries, and optimize performance • Collaborate with senior engineers and product managers on feature design and implementation • Participate in code reviews and contribute to backend engineering best practices • Troubleshoot and resolve backend issues related to performance, correctness, and reliability • Apply secure coding practices to protect sensitive data and services • Contribute to Agile development workflows and iterative feature delivery

• Work closely with our CTO and Product Team to produce a high-quality product. • Involved in every aspect of the product development process, from the conception of new features, to successfully running your code in production. • Collaborate with the Design and SysOps teams. • Working in a formal Agile environment to develop high-quality applications based on requirements and designs.