Staff Software Engineer, Frontend Platform

About the role

As a member of ArsenalOS, you will help build the software that powers Anduril’s manufacturing, supply chain, and production operations. Our applications are used across the factory floor and broader hardware enterprise, where software needs to be intuitive, reliable, and capable of scaling alongside rapidly growing production. You will define frontend architectures, build reusable platform capabilities, and establish patterns that enable product teams to deliver high quality web, mobile, and progressive web experiences at scale. The ideal candidate has experience building complex production applications as well as the shared systems behind them, including component libraries, application frameworks, developer tooling, frontend infrastructure, and architectural patterns used across multiple teams. You should be comfortable moving between hands on product development and broader technical leadership, identifying common problems and turning them into solutions that create leverage across the organization. This role requires strong software engineering fundamentals beyond the frontend, thoughtful technical judgment, and the ability to drive architecture and adoption across organizational boundaries.

Requirements

• Deep experience building and architecting modern web applications using TypeScript, JavaScript, React, and related technologies.
• Experience defining frontend architecture and scalable patterns across large applications or multiple product teams.
• Experience building reusable frontend infrastructure, shared libraries, component systems, or application frameworks.
• Strong understanding of browser fundamentals, application performance, testing, observability, and reliability.
• Strong software engineering fundamentals beyond the frontend, including APIs, authentication and authorization, data modeling, and distributed systems concepts.
• Experience leading technically ambiguous initiatives from architecture through implementation and adoption.
• Ability to identify common problems across teams and turn them into reusable platform capabilities and paved paths.
• Ability to influence technical direction across teams while remaining hands on in production code.
• US Citizen is required as this position needs to access export controlled data.

Qualifications

• Experience building frontend platforms, design systems, application frameworks, or shared developer infrastructure.
• Experience with progressive web applications, mobile applications, or React Native.
• Experience with offline first,