Develop core features for HENNGE One, focusing on backend and web-platform development, ensuring secure access experiences for enterprises.
About this role
This senior engineer joins HENNGE One’s Secure Transfer Team, which builds the Data Loss Prevention Edition for sensitive enterprise files. The role owns high-availability backend and platform services, combining Python web development with FastAPI, Kubernetes, ArgoCD, PostgreSQL, AWS, and Terraform.
The engineer ships features, operates scalable cloud services, and automates deployment, tests, monitoring, and documentation through CI/CD and infrastructure as code. They collaborate with product, design, and customer success, lead technical decisions, and mentor junior engineers.
Applicants need at least three years building production web applications with Python and experience across design, deployment, and maintenance. Kubernetes or ArgoCD, Terraform or comparable IaC, mission-critical AWS architecture and operations, CI/CD, automated testing, and clean-code practices are required. English fluency at CEFR B2 or above is required; Japanese is not.
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