Senior Software Engineer, Simulation Platform

Anduril Industries
Seattle, WA

Who this role is best for

Best suited to experienced C++20 developers with a background in military simulation working in a collaborative, high-performance systems programming environment.

Best fit for

  • Experienced C++20 developers who have designed internal APIs and frameworks for others to build on
    — “Experience designing internal APIs and frameworks that other engineers build on”
  • Candidates with a strong grasp of systems programming and performance optimization techniques
    — “Ability to reason about performance-sensitive code — cache behavior, memory layout, algorithmic complexity”
  • Individuals who can work within a large, shared codebase and negotiate architectural decisions for a growing team
    — “Clear technical communication and ability to work in a large, shared codebase and negotiate architectural decisions that affect a growing team”

Things to consider

  • Security clearance eligibility is a mandatory requirement for this role.
    — “Eligibility to obtain and maintain an active U.S. Government Secret security clearance”
  • This role involves working with a mature, large-scale C++20 codebase that requires long-term maintenance and extensibility.
    — “Mission Sim is a large, mature C++20 codebase with an Entity-Component-System architecture”

How to stand out

  • Demonstrate experience with Entity-Component-System architecture and plugin systems in your resume.
    — “Custom Entity-Component-System architecture that underpins the entire simulator”
  • Showcase your ability to build ergonomic UIs for technical tools and collaborate with GUI teams.
    — “You will negotiate extension APIs with the GUI team and build an ergonomic UI atop them”
Pace · Fast PacedCollaboration · HighAutonomy · MediumDecision Impact · Team

Derived from job-description analysis by Serendipath's career intelligence engine.

What success looks like

  • designed internal APIs and frameworks
  • maintained a versioned C ABI
  • supported domain experts in integrating new and enhancing existing capability models
Typical background
Master's degree in Computer Science or related field5+ years of experience in backend software engineering

Skills & requirements

Required

C++20Entity-component-system ArchitecturePlugin And SDK DevelopmentPerformance OptimizationIntegration ArchitectureGrpc ServicesDIS Protocol InteroperabilityNetworking MessagingFile Recording For Analysis And Playback

Preferred

Linear AlgebraApplied MathLinux-based C++ Development Toolchains

Stack & domain

C++20TemplatesMove SemanticsSmart PointersLinux-based C++ Development ToolchainsLinear AlgebraApplied MathGrpc ServicesDIS Protocol InteroperabilityNetworking MessagingFile Recording

About the role

Original posting from Anduril Industries via Greenhouse

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.

ABOUT THE TEAM 

The Simulation Platform team owns the core architecture and infrastructure of Anduril's high-fidelity, multi-domain military mission simulator. It models hundreds of entities--aircraft, ships, submarines, satellites, ground vehicles--moving, sensing, communicating, and engaging across realistic physical environments. The simulator powers training, mission planning, autonomy development, and hardware-in-the-loop testing across Anduril's product portfolio. It connects to live systems, integrates with Anduril's Lattice platform, and runs inside a GUI for interactive scenario authoring.  Mission Sim is a large, mature C++20 codebase with an Entity-Component-System architecture, a stable C ABI plugin system, embedded scripting, and a variety of physics-based models. Keeping this system fast, correct, extensible, and pleasant to develop against at scale, with a growing team of model developers is our job.

WHAT YOU'LL DO

Model authoring tools — an early effort you will help stand up to extend the Sim frontend with UI for authoring and tuning Mission Sim models. You will negotiate extension APIs with the GUI team and build an ergonomic UI atop them, working alongside Simulation Modeling engineers.

Custom Entity-Component-System architecture that underpins the entire simulator: entity lifecycle, component storage, and the update loop

Plugin and SDK development - maintaining a versioned C ABI, which enables external teams to extend the simulator

Performance and scale — keeping the simulation loop fast enough for real-time and faster-than-real-time execution with hundreds of concurrent entities; reasoning about memory layout, cache behavior and contention, as entity counts grow

Integration architecture — gRPC services, DIS protocol interoperability, networking messaging, and file recording for analysis and playback

Support domain experts in integrating new and enhancing existing capability models

REQUIRED QUALIFICATIONS

3 years of professional experience with C++20 and strong C++ skills; you should be comfortable with templates, move semantics, smart pointers, and the kinds of design decisions that show up in framework code

Experience designing internal APIs and frameworks that other engineers build on, with focus on backwards-compatibility and ergonomics

Solid understanding of systems programming fundamentals: memory management, shared libraries, ABI stability, linking, interfacing with the operating system

Comfort with linear algebra and applied math

Familiarity with Linux-based C++ development toolchains

Ability to reason about performance-sensitive code — cache behavior, memory layout, algorithmic complexity

Clear technical communication and ability to work in a large, shared codebase and negotiate architectural decisions that affect a growing team

Eligibility to obtain and maintain an active U.S. Government Secret security clearance

PREFERRED QUALIFICATIONS

5+ years of professional experience with C++20

Experience leading or mentoring engineers on a project — setting technical direction and bringing others along

Comfort operating in ambiguity — scoping the problem, the approach, and the interfaces when none exist yet, and driving them to a decision

Experience with military simulation, defense modeling & simulation, or related domains

Experience with Entity-Component-System architectures or game engine design patterns

Experience in designing and implementing GUI-supported workflows

Familiarity with gRPC, DIS (IEEE 1278.1) distributed simulation standard

Experience with Python/C++ interop (pybind11, embedded interpreters)

Familiarity with behavior trees or autonomous agent architectures

Developing in Nix

Experience with numerical simulation, physics modeling, or scientific computing

US Salary Range$191,000—$253,000 USDThe 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 contact@anduril.com. 

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 contact@anduril.com. 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 careers (Greenhouse)

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