Chief of Staff to the CEO

About H3X Technologies

H3X is building America's advanced electric motor company, powering next-generation platforms in aerospace, defense, and marine. Our integrated motor drives deliver 12+ kW/kg, roughly 3x the power density of competing solutions. We're now scaling to megawatt-class systems, with customers working on everything from supersonic aircraft to turbine power generation for AI datacenters.

Our team brings together engineers and operators from aerospace, defense, and motorsports, with deep expertise in electric machines, power electronics, material science, and advanced manufacturing. We're a small, fast-moving team doing hard engineering that matters, and we're looking for people who want to do the best work of their careers alongside us.

About the Role

We are looking for a Chief of Staff to work directly with our CEO and act as a force multiplier across the business. This is a high-ownership, high-variety role for someone who thrives in ambiguity, moves fast, and is equally comfortable building a financial model, untangling a broken internal process, drafting an investor update, or jumping on a customer call.

You will operate at the intersection of strategy and execution, translating the CEO's priorities into concrete action, and bringing structure, data, and rigor to a company that's still writing its own playbook. This role is not a scheduling-and-logistics job; it's a build-and-operate job for someone who wants broad exposure to every part of a fast-growing startup.

What you will do:

Business Operations & Financial Planning

- Partner with the CEO on financial planning, budgeting, and forecasting; build and maintain financial models to support decision-making

- Own Notion as the company's system of record. Drive documentation hygiene, structure, and consistent adoption across every team

- Track key company and departmental metrics; build dashboards and reporting that give leadership a clear, real-time view of the business

- B...