Rune builds TyrOS, sustainment mission command technology for military logistics. Edge-first, AI-powered platform designed for jammed, degraded networks. Backed by a16z.
About the role
Design, build, and deploy production-grade GenAI systems -- including RAG architectures, vector databases, LLM integrations, and tool-call frameworks -- in support of Saga, Rune's AI agentic product layer. Build and maintain evaluation and testing harnesses to validate LLM output quality and catch regressions in production.
What they're looking for
- 6+ years of experience in software engineering, with a strong backend foundation -- distributed systems, APIs, production-grade software
- Hands-on experience building GenAI systems: vector databases, LLM integration, RAG architectures, and evaluation harnesses for LLM output
- Familiarity with tool routing, tool-call validation, and common LLM failure modes
- Understanding of the science underlying the systems you build -- not just how to wire them together, but why they work and where they break
- Background at an AI-native company, or a clear transition from backend engineering into AI specialization
- Strong sense of ownership and a bias for action
More about this role
Rune Technologies builds mission-critical software for military logistics and sustainment. Our flagship product is TyrOS, an AI-enabled logistics command and control platform that gives commanders a single, real-time operating picture of their sustainment fight, from inventory and distribution to medical and operational planning, even in degraded and contested environments.
We're not a traditional defense contractor. We're a small, fast-moving team that combines deep operational experience in and with the DoD with the software discipline of the best product companies, and we apply that combination to a customer set that desperately needs it. We stay close to our users by embedding directly with military units during exercises and rotations, and we ship constantly based on what we learn.
The U.S. military and its allies face a real logistics modernization problem. We're building the software to solve it.
About the Role
At Rune Technologies, we are building the logistics technology backbone that the U.S. and allied militaries need to dominate in large-scale combat operations. As a Backend Software Engineer at Rune, you will be part of a high-impact team working at the intersection...
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