[Remote] Software Engineer (m/w/d)

Note: The job is a remote job and is open to candidates in USA. reltix is building an operating system for real estate and property management. The Software Engineer will design and build backend services, data models, APIs, and integrations, ship product features end to end, and help power AI-enabled user experiences. Responsibilities • Design and build the backend services and APIs at the core of the product: data models, business logic, and the integrations everything else depends on • Ship features end to end, from schema and API to the behaviour users experience, and grow into the frontend as far as your curiosity takes you • Build the systems that power our AI surfaces, with the full context of the property available to the voice agent, the owner chatbot, and the manager software • Integrate with third-party systems across the real estate and financial ecosystem • Work directly with the founders and operations team to decide what to build, then ship it fast and iterate Skills • 3+ years of professional engineering experience, with real depth on the backend • Strong in a modern backend language (preferably Golang/Python), comfortable designing data models, APIs, and services from scratch • Experience shipping in a modern web stack (React + TypeScript) • Solid with relational databases and a good sense for structuring data well • Curiosity about the frontend and a genuine wish to go full-stack • A pragmatic, shipping mindset and ownership as a default: you see something broken and you fix it • Nice to have (IaaS & IaC): AWS (or equivalent cloud), Terraform (or Pulumi), and comfort working on platform/infrastructure when needed • Bonus: AI-powered product features, event-driven architectures, third-party API integrations, or early-stage experience Benefits • A foundational engineering seat in an AI-native company, building the core product an entire industry will run on. • Real scope across a stack of different products. • End-to-end ownership, with a clear path into full-stack and product work as the company grows. • Tight feedback loops: real managers and owners use what you ship the same week you ship it. • A direct line to the founders and the operations team, with no bureaucracy between you and the problem. Company Overview • reltix provides property management services for residential and commercial real estate. It was founded in 2025, and is headquartered in Düsseldorf, Nordrhein-Westfalen, DEU, with a workforce of 11-50 employees. Its website is https://www.reltix.de.