Anduril Industries
Software Engineer, Agent Platform
About this role
Anduril Industries seeks a backend software engineer to design and maintain an internal LLM agent framework that enables teams across the organization to build, evaluate, and deploy AI agents for defense applications. You'll work at the intersection of backend infrastructure, AI systems, and agent architecture to support mission-critical deployments.
What you'll do
- Own the core LLM agent framework including abstractions, runtime architecture, and developer experience
- Support business lines building agents with new capabilities, guidance, and architectural reviews
- Partner with ML teams to integrate model post-training workflows like fine-tuning and reinforcement learning
- Design tooling for modern agent patterns including tool calling, memory, planning, and human-in-the-loop workflows
- Develop comprehensive evaluation suites measuring task success, robustness, and deployment readiness
- Stay current on emerging agent architecture trends and make adoption decisions
What they're looking for
- Backend platform and infrastructure engineering
- LLM agent framework design and orchestration patterns
- Agent evaluation paradigm design
- Model post-training workflows (SFT, preference tuning, RL)
- Reliability and observability for high-stakes LLM applications
- Kubernetes and distributed systems
- API and framework design
- Collaboration across technical teams
Benefits
- Competitive salary range: $220,000–$292,000 USD
- Equity grants included in majority of full-time offers
- Top-tier benefits package for full-time employees
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Anduril Industries
Anduril Industries builds autonomous defense systems including underwater vehicles, unmanned aircraft, and electronic warfare platforms for the Department of Defense. The company is hiring across mechanical engineering, mission operations, software development, technical leadership, and advanced manufacturing roles to support the design, deployment, and production of these mission-critical systems.
- Website
- anduril.com
Likely interview questions
- Walk us through your experience building production backend platforms or frameworks used by other engineers. What were the key design decisions you made, and how did you balance flexibility with ease of use?
- Describe your experience with LLM agent frameworks. What are the tradeoffs you've encountered between different orchestration patterns like linear agents, graph-based agents, and multi-agent systems?