This role develops web and mobile applications for cybersecurity and cryptographic key management systems serving defense/intelligence customers. The engineer will work full-stack (frontend, backend, persistence layer) in an Agile/Scrum environment, applying secure software development practices, Test-Driven Development, and clean coding principles (S.O.L.I.D).… Responsibilities include web service development, automated testing, CI/CD integration, and setting team standards for testing rigor and Agile practices.