We are seeking a senior backend engineer with expertise in cryptography to join our team focused on developing and maintaining HashiCorp Vault. In this role, you will work closely with other engineers to design, implement, and secure scalable backend services using advanced cryptographic techniques. Your day-to-day responsibilities include building robust encryption solutions, integrating security features into the Vault platform, and ensuring compliance with industry standards. Proficiency in Go is essential, along with experience in Python or Ruby for scripting tasks. Strong knowledge of cryptography principles, REST APIs, and cloud infrastructure (AWS, GCP) is required. This position involves tackling complex security challenges at scale within a fast-growing tech company that relies on Vault to manage secrets and encryption keys across various applications and services.