Senior Mechanical Engineer

WHY AIM? JOINING AIM, YOU WILL Everything humanity depends on is mined, dug, or grown. At AIM, we are building the autonomous linchpin of civilization. We transform heavy machinery—bulldozers, loaders, excavators—into AI-powered fleets that operate continuously, safely, and at peak performance in the world’s harshest environments. AIM runs production mines, large scale infrastructure builds, and defense operations as a TRL9 hardened system, not a science experiment. Built by engineers from mining, construction, Waymo, SpaceX, Google and Tesla, AIM enables scalable earthmoving, turbocharging the global economy’s physical foundation. AIM is backed by some of the most sophisticated capital in the world, including General Catalyst, Khosla Ventures, Elad Gil, Human Capital, Ironspring Ventures, Mantis, DCVC. ABOUT THE ROLE About Us AIM builds autonomy for the real world - robots that move mountains. Our systems combine software, hardware, robotics, and mission-critical infrastructure into ruggedized, safety-critical machinery operating in some of the harshest environments on earth. Our customers depend on our machines to work reliably in dust, mud, vibration, shock loads, thermal extremes, and unpredictable jobsite conditions. Mechanical engineering is at the foundation of this mission. Our hardware must be robust to all the conditions the machines work in, tolerating shock, vibration, and environmental conditions from full desert sun to deep snow. The system must be field-serviceable, and deeply integrated with autonomy, electrical, and software systems. We design mechanical systems that perform not just in CAD or simulation, but in real-world chaos: misalignment, wear, debris, hydraulic spray, operator variability, and global deployment. We're scaling fast and building the mechanical engineering foundation that will define the next century of construction and autonomy. About You You're a builder who thrives at the intersection of mechanical design, robotics, and field-hardened hardware. You design robust mechanical systems backed by strong engineering fundamentals - from defining & refining system requirements, through prototyping and analysis, to testing and verifying your designs. You move confidently between CAD, analysis, prototyping, test & verification, and field debugging. You take end-to-end ownership of your subsystems - from concept to production, and from test failures to corrective redesign. You work fluidly across electrical, autonomy, software, and field deployment teams. You have high judgment in ambiguous situations and can connect mechanical decisions directly to customer outcomes and machine behavior. You want to solve problems where precision, durability, safety, and reliability matter; and where your designs directly power autonomous heavy equipment in the field. About Us Together We're going to change how the world builds. Along the way, we'll take on mechanical engineering challenges such as: - Shock, vibration, and fatigue loads that exceed typical industrial design envelopes - High-precision mechanical integration of sensors, compute, and electronics - Environmental sealing against the harsh environments these machines operate in, up to IP69K for protection from pressure washing - Structural design of steel weldments, brackets, housings, and protective assemblies - Thermal management of electronic components and systems - Field variability, installation constraints, and operator behavior - Seamless integration of systems across a large range of machine types and models - Durability and reliability across global deployments We will iterate quickly, debate solutions, confront the truth when designs fail, and build mechanisms that elevate reliability over time. We'll ship hardware that works not only in the lab, but on dozers, excavators, and loaders operating in the elements. If that excites you, you're the kind of Senior Mechanical Engineer who will thrive here. RESPONSIBILITIES What You Will Own As a Senio