The Senior Backend Engineer plays a critical role in designing and scaling the core systems that power DOOR’s platform. This position is responsible for building resilient, high-performance backend services that support real-time data, device communication, and intelligent automation across our ecosystem. This role helps drive the evolution of our architecture toward modern, cloud-native, and event-driven systems—ensuring our platform remains scalable, secure, and ready to support rapid growth and innovation, including AI-enabled capabilities.

What is the role?

This is a highly technical, hands‑on engineering role focused on building and optimizing backend services within a JVM‑first, cloud‑native environment. You will design and develop microservices using Kotlin/Java and Spring Boot, create robust APIs (REST and gRPC), and build event‑driven systems leveraging Kafka and AWS messaging services.

You’ll own key architectural decisions across data storage,...