Applied LLM Systems Engineer

Anduril Industries is a defense technology company with a mission to transform U.S. and allied military capabilities with advanced technology.

As the Applied LLM Systems Engineer, your mission is to design, build, and operate production AI systems that improve how technical documentation is created, transformed, validated, maintained, and delivered.

Responsibilities

• Build production-grade LLM applications for documentation and knowledge-work workflows.
• Design orchestration for multi-step workflows that coordinate models, tools, and deterministic services safely.
• Optimize context management, token usage, caching, and workflow design for cost, latency, and task success.
• Build retrieval, structured-output, and tool-integrated systems that safely interact with enterprise content, source control, issue tracking, and documentation systems.
• Design evaluation frameworks and regression testing for prompts, models, tools, retrieval pipelines, and end-to-end workflows.
• Establish observability, auditability, rollback, and safe failure modes for AI-assisted workflows.
• Work directly with technical writers, illustrators, engineers, and documentation leadership to identify the highest-value places to apply AI and where human judgment should remain primary.
• Preserve provenance between source material, generated output, validation results, and human decisions so outputs remain reviewable, correctable, and attributable.

Required Qualifications

• 5+ years of professional software engineering experience, including building and operating production services.
• Direct experience delivering at least one production AI system with measurable adoption by its intended users.
• Experience optimizing cost, latency, and context usage in production LLM or workflow systems.
• Experience designing evaluation, observability, rollback, and failure-handling for nondeterministic systems.
• Strong proficiency in Python and modern API, data, and service-development practices, including software architecture, security boundaries, identity and access management, and data protection.
• Sound judgment about where probabilistic AI is appropriate and where deterministic software or human review is required.
• Must be eligible for Secret and higher security clearance (US).

Benefits

Anduril offers top-tier benefits for full-time employees, including comprehensive, competitive benefits package (available at little to no cost to employees) to support health, recovery, and well-being.