---
title: 'Backend Software Engineer - GenAI at Rune Technologies'
canonical: 'https://feeny.ai/job/backend-software-engineer-genai-rune-technologies-rosslyn-szxgmx97bnzz'
type: 'job'
last_seen: '2026-09-07'
---

# Backend Software Engineer - GenAI at Rune Technologies

- **Company:** Rune Technologies
- **Location:** Rosslyn, VA
- **Compensation:** $190k–$230k
- **Employment:** full-time
- **Work type:** onsite
- **Posted:** 2026-08-18
- **Last confirmed live:** 2026-09-07
- **Apply:** https://jobs.ashbyhq.com/runetech/99967231-3c37-494a-b8de-a4f10f04b132/application

**Skills:** Software Engineering, Backend Development, Distributed Systems, APIs, GenAI Systems, Vector Databases, LLM Integration, RAG Architectures, Tool Routing, Tool-Call Validation, LLM Evaluation, Model Fine-tuning, Model Evaluation, AI Infrastructure, Embedding Pipelines, Inference Optimization, AWS, Kubernetes, Edge Infrastructure

> Design and implement production GenAI systems, including RAG architectures and LLM integrations, for Rune Technologies' AI agentic layer within TyrOS. The role involves building evaluation harnesses, collaborating with product teams, and debugging production issues to support military logistics and sustainment opera...

## Job description

## About Rune

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 of advanced logistics algorithms, modern AI enabled software, and complex system integrations -- all in support of the warfighter at the tactical edge. You'll join us in our mission to bring 21st-century software to the sustainment domain -- modernizing inventory management, transportation optimization, and predictive maintenance with state-of-the-art user experiences. You'll work closely with a team of experienced engineers, product designers, and operational experts who care deeply about delivering real-world impact.

As a Backend Software Engineer focused on Saga -- Rune's AI agentic layer within TyrOS -- you will own the design and implementation of production GenAI systems that bring intelligent, autonomous capability to the sustainment domain. This is a backend engineering role first: we're looking for someone who has built real AI systems from the ground up, worked closely with engineers and operational experts, and cares about shipping software that actually works in the field.

## What You'll Do

- 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.
- Collaborate with the broader platform and product teams to integrate AI capabilities into TyrOS workflows.
- Participate in technical design discussions and code reviews, contributing to a culture of engineering rigor and mission focus.
- Triage and debug issues in production, ensuring reliability and rapid iteration in support of operational needs.
- Work closely with engineers, product managers, and military stakeholders to ensure AI systems meet real-world sustainment requirements.

## Qualifications

- 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.

Desired Qualifications

- Experience with fine-tuning or model evaluation workflows.
- Familiarity with AI infrastructure: embedding pipelines and inference optimization.
- Experience working on software in defense, aerospace, or other complex operational domains.
- Experience deploying software to production environments, including cloud (AWS, Kubernetes) and edge infrastructure.

## Benefits

Rune offers top-tier benefits for full-time employees to include a full suite of insurance options at no cost for employees and low-cost to spouses and dependents. Highly competitive equity grants are also  included in the majority of full time offers and are considered part of Rune's total compensation package. Benefits include:

- Comprehensive medical, dental, and vision plans; premiums 100% covered by Rune for all employees; exceptionally low premiums for spouses and dependents
- Basic life insurance and disability 100% covered for all employees by Rune; option to purchase additional life insurance available
- ‘Take the time off that you need, when you need it’ paid time off, not accrual based
- Generous company holiday calendar including a holiday shutdown in December
- Supportive leave of absence program including time off for military service, medical events, and parental leave
- Full 401(k) retirement plan for all full-time eligible employees
- Company-funded commuter benefits
- Free access to on-site gym at office

## About Rune Technologies

## Company Overview
- **One-liner**: Rune Technologies builds AI-enabled predictive logistics software for military sustainment operations, enabling data-driven decision-making in contested environments.
- **Entity Type**: Private (Series A)
- **Headquarters**: Arlington, Virginia, United States
- **Founded**: Not publicly available
- **Founders**: David Tuttle (CEO) and Peter Goldsborough (CTO)

## Core Business
- **Primary industry**: Defense and Space Manufacturing / Military Logistics Software
- **Target customers**: U.S. Department of Defense (Army, Marine Corps, Special Operations), allied nations, and government agencies
- **Mission**: To be the trusted technology partner to rapidly deliver mission-aligned information essential to decision-making and execution of critical logistics and sustainment operations.

## Products & Services
- **[TyrOS Platform](https://www.runetech.co/)**: An AI-enabled predictive logistics and sustainment platform that combines, organizes, and analyzes critical supply chain information. Features include:
  - **Predictive Analytics**: AI-driven forecasting of supply requirements based on past consumption, mission parameters, and doctrinal standards.
  - **Decision Support**: Machine-speed evaluation of inventory and transport for planned and ad-hoc supply operations.
  - **Intelligent Planning**: Automated, agile, and precise logistics planning for contested environments.
  - **Offline-First Architecture**: Mesh-based system that operates in denied, degraded, intermittent, or low-bandwidth (DDIL) conditions.

## Market Standing
- **Valuation/Market Cap**: Not disclosed
- **Total Funding**: $30.2 million across two rounds
  - **Seed Round** (February 2025): $6.2 million led by Andreessen Horowitz
  - **Series A** (August 2025): $24.0 million led by Human Capital
- **Notable Investors/Partners**: Andreessen Horowitz, Human Capital, In-Q-Tel (IQT), U.S. Marine Corps Warfighting Laboratory (MCWL), U.S. Army (DEVCOM/CASCOM)
- **Growth Signals**:
  - Headcount grew 260% year-over-year to 40 employees
  - Active job postings: 20 (monthly growth of 81.8%, quarterly growth of 300%)
  - LinkedIn followers: 7,055 (yearly growth of 249.4%)
  - Signed agreements with U.S. Marine Corps and Army in September 2025
  - Strategic investment from In-Q-Tel (IQT), a not-for-profit investor for the U.S. national security community

## Competitive Advantages
- **Deep domain expertise**: Team combines military experience (U.S. Army, Marine Corps, JSOC, DARPA) with elite Silicon Valley engineering talent (Anduril, Facebook, Palantir, Amazon).
- **Offline-first architecture**: Platform designed for contested environments where communications are denied or degraded—a critical differentiator for military use cases.
- **Government partnerships**: Active CRADA with U.S. Army and partnership with Marine Corps Warfighting Laboratory, providing real-world validation and integration pathways.
- **AI-native approach**: Machine-learning based estimation and predictive analytics replace manual, analog processes with machine-speed decision support.

## Strategic Focus
- **Current priorities**: Scaling the TyrOS platform, deepening partnerships with U.S. military branches, establishing data standards for military logistics (aligned with Army's UDRA and MOSA principles), and expanding support for allied nations.
- **Growth direction**: Moving from experimentation and integration into emerging programs of record within the Department of Defense.

## Why Work Here
- **Mission-driven work**: Directly contribute to national security and military effectiveness—"Logistics wins wars. Rune wins logistics."
- **High-growth environment**: 260% headcount growth in the past year with 20 open positions across engineering, product, design, and talent.
- **Elite team**: Work alongside veterans from Anduril, Palantir, Amazon, and the military special operations community.
- **Technical challenges**: Build cutting-edge AI/ML systems, offline-first architectures, and mesh networks for the most demanding operational environments.
- **Culture**: Combines Silicon Valley software engineering rigor with deep operational experience in defense.
- **Location**: Headquarters in Arlington, VA with presence in Canada. Remote/hybrid policy not explicitly stated but likely flexible given talent distribution.
- **Open roles include**: Full Stack Software Engineer, Backend Software Engineer (Maps & Routing), Cloud Infrastructure Engineer, Product Manager, Senior Product Designer, Information Systems Security Engineer, Technical Recruiter.

## Sources
1. [runetech.co](https://www.runetech.co/)
2. [runetech.co/about](https://www.runetech.co/about)
3. [runetech.co/news/crada-mcwl](https://www.runetech.co/news/crada-mcwl)
4. [linkedin.com/company/runetech](https://www.linkedin.com/company/runetech)
5. [jobs.ashbyhq.com/runetech](https://jobs.ashbyhq.com/runetech)

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