Senior Software Engineer - UI

AIM•Seattle, WA

16h•Onsite

About The Position

AIM is seeking a Senior Frontend Engineer to build the user interfaces that connect humans with their autonomous heavy machinery. This role involves designing and developing critical web surfaces, including a safety-critical Operator UI and a multi-tenant SaaS portal, powered by a shared design system. The ideal candidate is passionate about UI correctness, safety, reliability, and performance, with a strong command of TypeScript and React. You will architect component libraries, optimize 3D rendering, handle real-time data pipelines, and ensure the UI functions flawlessly in harsh environments. This is an opportunity to work on a world-class team, solve complex problems in autonomy and robotics, and shape the future of earthmoving operations.

Requirements

Bachelor's degree in Computer Science, Computer Engineering, Design, HCI, or equivalent hands-on experience.
5+ years of professional software engineering experience delivering production frontend systems.
Deep expertise in TypeScript and React, including modern patterns (hooks, suspense, concurrent rendering).
Experience with 3D web graphics: Three.js, React Three Fiber, Drei, WebGL, shaders, GLTF pipelines, BVH acceleration, or point-cloud rendering.
Experience with real-time data and binary serialization: Protocol Buffers, gRPC-web, WebSockets, or high-frequency telemetry on the web.
Experience with modern frontend tooling: Vite, npm workspaces (or pnpm/yarn workspaces), Storybook, modern testing stacks.
Strong debugging skills using browser devtools, logs, telemetry, metrics, and tracing.
Proven track record of delivering high-quality software independently and as part of cross-functional teams.

Nice To Haves

Comfort working across the whole stack when needed.
Experience with safety-critical or industrial UI: robotics, automotive, aerospace, medical, defense, energy — contexts where a bug has physical consequences.
Experience with state machines (XState, statecharts) as a tool for safe UI flows, not as a buzzword.
Experience with TanStack Router, TanStack Query, Zustand, Tailwind CSS v4, tailwind-variants, Floating UI, Mantine, or Visx.
Experience with multi-tenant SaaS authorization (ReBAC/ABAC) and the UI patterns that make complex permissions comprehensible.
Experience with frontend infrastructure: Docker, Kubernetes, CI/CD, micro-frontend architecture, OpenTelemetry, Sentry.

Responsibilities

Design and build the safety-critical Operator UI and the multi-tenant portal, along with the shared design system.
Architect and build the Design System, including component APIs, accessibility, theming, versioning, and developer experience.
Build the Operator UI, including architecting and implementing a live 3D scene with Three.js, state machines for safety-critical flows, and teleop controls with live video streaming.
Shape the administration portal as a real SaaS product, driving architecture for multi-tenant authorization, internationalization, and real-time data.
Deliver high-quality, production-ready software by writing clean, testable TypeScript, driving improvements in quality, accessibility, performance, and reliability.
Lead code reviews, design reviews, and architectural discussions.
Own End-to-End Execution by working with cross-functional teams (TPMs, design, autonomy, controls, hardware, field ops) to ensure UI reliability.
Partner with Field Development Engineers (FDEs) to understand field realities and incorporate operational feedback.
Drive root-cause analysis and elimination of recurring defects.
Raise the Engineering Bar by mentoring junior engineers, improving developer experience, CI/CD, test frameworks, and local development tooling.
Help define SWE excellence and engineering mechanisms across the organization.