Six Figure Work

Applied LLM Systems Engineer

Anduril Industries

Company websiteanduril.com (Anduril Industries, opens in new tab)

Base salary $191K  to $254K

Employer-published annual base salary, USD. Advertised base range in Costa Mesa, CA

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  • LocationCosta Mesa, CA
  • WorkplaceWorkplace not stated
  • Status at last checkSource accepting applications when checked
  • Last checked (2 h ago) · observed since

About this job

Anduril Industries is a defense technology company with a mission to transform U.S. and allied military capabilities with advanced technology. By bringing the expertise, technology, and business model of the 21st century’s most innovative companies to the defense industry, Anduril is changing how military systems are designed, built and sold. Anduril’s family of systems is powered by Lattice OS, an AI-powered operating system that turns thousands of data streams into a realtime, 3D command and control center. As the world enters an era of strategic competition, Anduril is committed to bringing cutting-edge autonomy, AI, computer vision, sensor fusion, and networking technology to the military in months, not years.

Team Overview

Anduril’s Technical Publications organization supports complex hardware, software, autonomy, and defense systems across multiple divisions, business lines, and programs. The Product Manager, Technical Writing Systems, owns the authoring and publishing platform. This role builds the AI systems that extend that platform so the documentation pipeline handles more work at lower cost and lower latency.

Role Specifics

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. You will build and maintain AI-assisted authoring, automated publishing, and multi-agent coordination tooling for the Technical Publications pipeline. This is not a prompt-writing role. It is a systems-engineering role for someone who has already delivered production AI systems, understands evaluation and rollback, and knows how to make probabilistic systems useful in enterprise environments with structured content, strict review requirements, security boundaries, and real operational consequences. The right candidate can expand system capability while managing token usage, context efficiency, and cost at scale.

What You’ll Do

  • 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).
  • In this role, you will be subject to pre-employment and randomized substance screening, as required by the Company.

Preferred Qualifications

  • Experience designing multi-step orchestration or coordination systems across models, tools, and deterministic services.
  • Experience with retrieval-augmented generation, structured outputs, tool calling, or other production LLM workflow patterns.
  • Experience integrating AI capabilities into desktop or enterprise applications with limited native APIs.
  • Experience in defense, aerospace, manufacturing, robotics, autonomy, aviation, or another regulated environment.
  • Familiarity with technical documentation, structured authoring, content management, or comparable documentation-heavy workflows.
  • Familiarity with S1000D, DITA, MIL-STD-40051, or comparable documentation frameworks.
  • Experience with containerized services, cloud infrastructure, CI/CD, queues, event-driven architectures, or production monitoring.

US Salary Range

$191,000—$254,000 USD

The salary range for this role is an estimate based on a wide range of compensation factors, inclusive of base salary only. Actual salary offer may vary based on (but not limited to) work experience, education and/or training, critical skills, and/or business considerations. Highly competitive equity grants are included in the majority of full time offers; and are considered part of Anduril's total compensation package. Additionally, Anduril offers top-tier benefits for full-time employees, including: 

Benefits

At Anduril, we invest in our people. Our comprehensive, competitive benefits package (available at little to no cost to employees) ensures you’re supported in health, recovery, and whatever comes next. For more information, Explore Our Benefits.

Protecting Yourself from Recruitment Scams

Anduril is committed to maintaining the integrity of our Talent acquisition process and the security of our candidates. We've observed a rise in sophisticated phishing and fraudulent schemes where individuals impersonate Anduril representatives, luring job seekers with false interviews or job offers. These scammers often attempt to extract payment or sensitive personal information.

To ensure your safety and help you navigate your job search with confidence, please keep the following critical points in mind:

  • No Financial Requests: Anduril will never solicit payment or demand personal financial details (such as banking information, credit card numbers, or social security numbers) at any stage of our hiring process. Our legitimate recruitment is entirely free for candidates.

  • Please always verify communications:
    • Direct from Anduril: If you receive an email from one of our recruiters, it will only come from an @anduril.com address.
    • Via Agency Partner: If contacted by a recruiting agency for an Anduril role, their email will clearly identify their agency. If you suspect any suspicious activity, please verify the agency's authenticity by reaching out to [email protected]. 
  • Exercise Caution with Unsolicited Outreach: If you receive any communication that appears suspicious, contains grammatical errors, or makes unusual requests, do not engage. Always confirm the sender's email domain is @anduril.com before providing any personal information or clicking on links.

  • What to Do If You Suspect Fraud: Should you encounter any questionable or fraudulent outreach claiming to be from Anduril, please report it immediately to [email protected]. Your proactive caution is invaluable in protecting your personal information and upholding the security and trustworthiness of our recruitment efforts.

 

Data Privacy

To view Anduril's candidate data privacy policy, please visit https://anduril.com/applicant-privacy-notice/. 

By submitting your application, you consent to Anduril Industries using a third-party service provider to conduct pre-employment risk, integrity, and due diligence screening and assessing potential risks as part of your application process. This third-party service provider provides risk-intelligence services that may include analysis of sanctions and watchlists, adverse media, public-record information, and other lawful open-source or commercial data sources. This third-party service provider does not act as a consumer reporting agency. Use of this provider helps to ensure compliance with applicable laws and protect technology, intellectual property, and organizational security.

Source: Anduril Industries on Greenhouse · View original posting (opens in new tab)

Pay in context

This role's base floor ($191,000) is above 51% of the 1,503 Data & ML roles in California listed on this site; 3 others list the same floor. Their median floor is $189,000; the middle half runs from $159,800 to $229,900.

Only jobs on this site count, and each one publishes a base salary of $100,000 or more, so this compares six-figure jobs with each other, not with the whole market. Computed Nov 6, 2026.

This range next to 6 other live Anduril Industries roles with the nearest advertised base floor
Chart as a table
This range next to 6 other live Anduril Industries roles with the nearest advertised base floor
RolePublished base
Applied LLM Systems Engineer (this listing)$191K - $254K
Senior Software Engineer - Undersea Recon & Strike$191K - $254K
Senior Firmware Engineer, Motor Controls$191K - $253K
Staff Technical Program Manager$191K - $254K
Senior Software Engineer, Vehicle Management Systems$191K - $254K
Air Vehicle Lead, Air Maneuver Dominance$191K - $254K
Senior Ground Software Engineer, Space$191K - $254K

Same $100K to $400K scale as every card. All Anduril Industries roles · How to read the bar

Observed changes

  1. Began meeting the published-salary criteria
  2. First observed on the employer's board
Observed since
Employer-stated posting date
2026-08-07
Where this pay comes from

Location as the employer wrote it: Costa Mesa, California, United States

$191,000—$254,000 USD

Method
Employer text, read with fixed rules and re-verified
Checked
Rule set
us-base-v2

The pay passage appears in the employer's own job text. Fixed, deterministic rules located it, and the passage below was checked against the stored copy of the posting.

What we verified

  • The pay figures come from the employer's own listing, quoted exactly above.
  • The pay is an annual base salary in US dollars with a minimum of at least $100,000.
  • The role was publicly listed on the employer's job board when last checked.

We do not verify what the employer will actually offer, whether the employer is still recruiting for the role, or anything beyond what the employer published. Full methodology.